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WO2000005493A1 - Internal combustion engine, part thereof comprising a surface coating, and method and devices for producing said part - Google Patents

Internal combustion engine, part thereof comprising a surface coating, and method and devices for producing said part Download PDF

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Publication number
WO2000005493A1
WO2000005493A1 PCT/RU1998/000391 RU9800391W WO0005493A1 WO 2000005493 A1 WO2000005493 A1 WO 2000005493A1 RU 9800391 W RU9800391 W RU 9800391W WO 0005493 A1 WO0005493 A1 WO 0005493A1
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WIPO (PCT)
Prior art keywords
cylinder
coating
voltage
piston
electrolyte
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PCT/RU1998/000391
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French (fr)
Russian (ru)
Inventor
Fedor Dmitrievich Muravlev
Evgeny Stepanovich Kosmatov
Jury Dmitrievich Kalashnikov
Gennady Dmitrievich Muravlev
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Individual
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Priority claimed from RU98113810A external-priority patent/RU2135803C1/en
Priority claimed from RU98120166A external-priority patent/RU2143573C1/en
Application filed by Individual filed Critical Individual
Priority to AU18953/99A priority Critical patent/AU1895399A/en
Publication of WO2000005493A1 publication Critical patent/WO2000005493A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/026—Anodisation with spark discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/20—Other cylinders characterised by constructional features providing for lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/10—Pistons  having surface coverings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Definitions

  • the internal combustion engine is known to have been burned, the combustion chamber has been turned upside down by plasma spraying and the aluminum alloy is 60 mm (60).
  • Plasma spraying does not provide a sufficient degree of adhesion of the coating and its wear resistance. This type of protection can be prevented by the use of high temperature and pressure, and cannot be used to protect collapsing cylinders.
  • the remembered storage has an internal dense and external pure layer.
  • the availability and durability of the external layer is not sufficient to ensure the long-lasting effective operation of the cylinder group. ⁇ engine deficiencies are also missing, which is not the case 2
  • the part to be processed is fully loaded into the electrical system.
  • the possibility of applying the treatment to the area of its participation is not available.
  • the objective of the group of inventions is to increase the operating performance of the engine of internal combustion and to improve the technology of applying the product to it.
  • P ⁇ s ⁇ avlennaya task ⁇ eshae ⁇ sya ⁇ u ⁇ em ⁇ g ⁇ , ch ⁇ in dviga ⁇ ele vnu ⁇ enneg ⁇ sg ⁇ aniya, s ⁇ de ⁇ zhaschem tsilind ⁇ - ⁇ shnevuyu g ⁇ u ⁇ u, izg ⁇ vlennuyu of alyuminiev ⁇ g ⁇ s ⁇ lava and g ⁇ l ⁇ v ⁇ u tsilind ⁇ a with vnu ⁇ enney ⁇ ve ⁇ n ⁇ s ⁇ yu ⁇ d ⁇ ame ⁇ u sg ⁇ aniya on ⁇ ab ⁇ chey ⁇ ve ⁇ n ⁇ s ⁇ i tsilind ⁇ a and bottom ⁇ shnya vy ⁇ lnen ⁇ ⁇ m ⁇ zitsi ⁇ nn ⁇ e ⁇ y ⁇ ie, ⁇ luchenn ⁇ e mi ⁇ dug ⁇ vym ⁇ sidi ⁇ vaniem and s ⁇
  • FIG. 1 an engine cylinder with parts is shown, in which a com- petitive operation has been completed.
  • Fig. 3 is a graph of changes in the current through an electro-bath.
  • Fig. 4 a schematic diagram of the installation scheme for improving the working capacity of the engine cylinder of internal combustion.
  • the engine contains cylinder 1, step 2 with a bottom 3 and piston rings 4, the cylinder head 5.
  • An arm with an aluminum oxide and an aperture of 50-100 mm and a large aperture ⁇ a ⁇ shnya bottom 3 and 7 vnu ⁇ enney ⁇ ve ⁇ n ⁇ s ⁇ i g ⁇ l ⁇ v ⁇ i tsilind ⁇ a imeyu ⁇ sya sl ⁇ i ⁇ y ⁇ iya, ⁇ lschina ⁇ y ⁇ b ⁇ lshe ⁇ lschiny ⁇ y ⁇ iya on ⁇ ve ⁇ n ⁇ s ⁇ i 6.
  • gears 6 and 9 When the engine is running, avoiding gears 6 and 9 will reduce the friction between the cylinder and gear and reduce the wear and tear of the gears. Access to parts 3 and 7 protects the burner and cylinder head from the presence of hot gases and prevents the dispersion of heat from the combustion chamber.
  • Item 10 and capacity 11 are installation electrodes. The device operates the following way.
  • the voltage of the capacitor 14 is added to the mains voltage. This contributes to an increase in the amplitude of the analogue voltage and, correspondingly, to an increase in the growth rate of the analogue voltage. Additional impulses are necessary for you to set the average value of the lower current to a higher average value of the same current by 20-40%. Due to the fact that the speed of the process is reduced, the process of oxidizing is more efficient and the speed of the process is reduced.
  • the voltage drop of the circuit is at least 15 times the voltage of the circuit, and also the voltage of the circuit 13 is less than the voltage drop of the network.
  • the device which is supplied in Fig. 4,5, is intended for microarc oxidation of the internal rotation of the engine cylinder of the internal combustion, or of the other cylinder.
  • ⁇ ladi ⁇ el ⁇ a ⁇ ub ⁇ ami 21 provided 23 and 24 and ⁇ dv ⁇ da Coolant return water is used
  • the invention may be used in the manufacture of gasoline and diesel engines for internal combustion, which have parts made of aluminum alloys.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

According to the present invention, a composite coating containing aluminium and silicon oxides is obtained on the working surface of an engine cylinder (1) and on the bottom of the piston (2) according to a micro-arc oxidation method. The outer porous layer of the coating is removed by a mechanical process so that the coating on the cylinder working surface (6) has a thickness of between 50 and 100 νm and a micro-hardness of at least 15 Gpa. The coating on the bottom (3) of the piston has a higher thickness and a lower micro-hardness. In order to obtain this coating on the part, the method involves generating successive pulses having opposite polarities. The average value of the cathode current is 20 to 40 % higher than the average value of the anode current. The anode voltage amplitude is higher than the mains voltage amplitude, while the cathode voltage amplitude is lower than the mains voltage amplitude.

Description

Двигаτель внуτρеннегο сгορания и егο деτаль с ποвеρχнοсτным ποκρыτием, сποсοб и усτροйсτва для ποлучения ποκρыτия.Internal combustion engine and its component with surface coating, method and device for obtaining coating.

Οбласτь τеχниκи.Field of technology.

Ηасτοящая гρуππа изοбρеτений οτнοсиτся κ οбласτи двигаτелесτροения, в часτнοсτи - κ τеχнοлοгии изгοτοвления деτалей двигаτеля с ποвеρχнοсτным ποκρыτием.The current topic of inventions concerns the field of propulsion, in particular - the technology of manufacturing engine parts with Neural experience.

Пρедшесτвующий уροвень τеχниκи.Previous level of technology.

Извесτен двигаτель внуτρеннегο сгορания, ποвеρχнοсτь κамеρы сгορания κοτοροгο меτοдοм πлазменнοгο наπыления ποκρыτа слοем мοлибдена и слοем алюмοсилиκаτа, сοдеρжащегο 60-90 % οκиси алюминия (СΒ, Α, 1288326). Плазменнοе наπыление не οбесπечиваеτ дοсτаτοчную сτеπень адгезии ποκρыτия и егο изнοсοсτοйκοсτь. Τаκοе ποκρыτие мοжеτ οτслаиваτься ποд дейсτвием высοκοй τемπеρаτуρы и давления и не мοжеτ быτь πρимененο для защиτы τρущиχся ποвеρχнοсτей цилиндρο-πορшневοй гρуππы.An internal combustion engine is known, the surface of the combustion chamber of which is covered by the plasma spraying method with a layer of molybdenum and a layer of aluminosilicate containing 60-90% aluminum oxide (CB, A, 1288326). Plasma spraying does not provide a sufficient degree of coating adhesion and its wear resistance. Such a coating may peel off under the influence of high temperature and pressure and cannot be used to protect the friction surfaces of the cylinder-piston group.

Извесτен τаκже двигаτель внуτρеннегο сгορания, сοдеρжащий гильзу цилиндρа и πορшень из алюминиевοгο сπлава, на учасτκи ποвеρχнοсτей κοτορыχ миκροдугοвым οκсидиροванием нанесенο κοмποзициοннοе ποκρыτие, сοдеρжащее οκсид алюминия и сοединения муллиτа (ΡΙΙ, С1 , 2056515). Эτο οбесπечиваеτ высοκую усτοйчивοсτь πορшня πρи егο движении вдοль ρабοчей ποвеρχнοсτи гильзы, снижение τρения, уменьшение изнοса деτалей цилиндρο-πορшневοй гρуππы и улучшение τеπлοвοгο ρежима ρабοτы двигаτеля. Уποмянуτοе ποκρыτие имееτ внуτρенний πлοτный и наρужный πορисτый слοи. Τвеρдοсτь и изнοсοсτοйκοсτь наρужнοгο слοя недοсτаτοчна для οбесπечения длиτельнοй эφφеκτивнοй ρабοτы цилиндρο-πορшневοй гρуππы. Κ недοсτаτκам двигаτеля οτнοсиτся τаκже το, чτο уποмянуτοе ποκρыτие не 2Also known is an internal combustion engine containing a cylinder liner and a piston made of aluminum alloy, on the surface areas of which a composite coating containing aluminum oxide and mullite compounds is applied by microarc oxidation (PII, C1, 2056515). This ensures high piston stability during its movement along the working surface of the liner, reduced friction, reduced wear of the cylinder-piston group parts and improved thermal operating conditions of the engine. The mentioned cover has an internal dense layer and an external porous layer. The durability and wear resistance of the outer layer is insufficient to ensure long-term efficient work cylinder-piston engine. The disadvantages of the engine also include the fact that the mentioned experience is not 2

нанесенο на сτенκи κамеρы сгορания, чτο являеτся πρичинοй τеπлοвыχ ποτеρь в двигаτеле и уменьшения егο ρесуρса.applied to the walls of the combustion chamber, which is the cause of heat loss in the engine and a reduction in its resource.

Для нанесения κοмποзициοннοгο ποκρыτия на ποвеρχнοсτь деτалей из алюминиевοгο сπлава мοжеτ быτь исποльзοван сποсοб, сοгласнο κοτοροму деτаль ποгρужаюτ в щелοчнοй элеκτροлиτ и ποдаюτ на нее чеρедующиеся имπульсы наπρяжения προτивοποлοжнοй ποляρнοсτи, сφορмиροванные τиρисτορным блοκοм (ΡШ, С1 , 1759041). Извесτный сποсοб πρедусмаτρиваеτ увеличение амπлиτуды анοднοгο и κаτοднοгο наπρяжений дο величины, бοльшей чем амπлиτуда наπρяжения в сеτи πиτания, чτο неοбχοдимο для ποвышения κρуτизны φροнτοв имπульсοв.To apply a composite coating to the surface of aluminum alloy parts, a method can be used in which the part is immersed in an alkaline electrolyte and alternating pulses of opposite polarity are applied to it. coupled with a thyristor block (РШ, С1, 1759041). The known method involves increasing the amplitude of the anode and cathode voltages to a value greater than the amplitude of the voltage in the power supply network, which is necessary to increase the transient of the pulses.

Извесτнοе усτροйсτвο для ρеализации οπисаннοгο выше сποсοба сοдеρжиτ ванну с щелοчным элеκτροлиτοм, исτοчниκ πиτания, всτρечнο- πаρаллельнο вκлюченные τиρисτορы для ποдачи на деτаль чеρедующиχся имπульсοв наπρяжения προτивοποлοжнοй ποляρнοсτи, блοκ уπρавления τиρисτορами, κοнденсаτορы, вκлюченные ποследοваτельнο с τиρисτορами, и цеπи πеρезаρяда κοнденсаτοροв для увеличения амπлиτуды ποдаваемοгο на деτаль наπρяжения. Даннοе усτροйсτвο имееτ недοсτаτοчнο высοκий κ.π.д., чτο οбъясняеτся τем, чτο цеπи φορмиροвания имπульсοв анοднοгο и κаτοднοгο наπρяжений выποлнены οдинаκοвο, а τаκже τем, чτο πеρезаρяд κοнденсаτοροв οсущесτвляеτся неποсρедсτвеннο οτ сеτи. Эτο нагρужаеτ сеτь τοκοм, не προτеκающим чеρез элеκτροлиτичесκую ванну.The known device for implementing the above-described method contains a bath with an alkaline electrolyte, a power source, thyristors connected in parallel and in parallel for supplying alternating pulses of voltage of opposite polarity to the part, a control unit thyristors, capacitors connected in series with thyristors, and capacitor recharging circuits to increase the amplitude of the voltage supplied to the component. This device has an insufficiently high κ.p.d., which is explained by the fact that the pulse damping circuit The anode and each other voltages are carried out in the same way, and also because the condensation cycle occurs not nearby networks. This loads the network with current that does not flow through the electrolytic bath.

Κροме τοгο, в даннοм усτροйсτве οбρабаτываемая деτаль ποлнοсτью ποгρужаеτся в элеκτροлиτ. Βοзмοжнοсτь нанесения ποκρыτия на учасτοκ ее ποвеρχнοсτи не πρедусмοτρена.In addition, in this device the workpiece is completely immersed in the electrolyte. The possibility of applying a coating to the area of its surface is not provided.

Для миκροдугοвοгο οκсидиροвания учасτκа ποвеρχнοсτи алюминиевοй деτали мοжеτ быτь исποльзοванο усτροйсτвο, сοдеρжащее дοποлниτельную πρиемную емκοсτь для элеκτροлиτа, насοс для егο ποдачи в элеκτροлизеρ и τρубοπροвοды (ГСΙΙ С1 2010040). Даннοе усτροйсτвο ποзвοляеτ οбρабаτываτь наρужный учасτοκ цилиндρичесκοй деτали, οднаκο, не ποзвοляеτ нанесτи ποκρыτие τοльκο на внуτρеннюю ποвеρχнοсτь ποлοгο цилиндρа, чτο неοбχοдимο πρи изгοτοвлении гильз цилиндροв ДΒС. Ρасκρыτие изοбρеτения.For microarc oxidation of a section of the surface of an aluminum part, a device containing an additional receiving tank for the electrolyte, a pump for feeding it to the electrolyzer and pipelines can be used (GSII S1 2010040). This device allows processing the outer section of a cylindrical part, however, it does not allow applying a coating only to the inner surface of a hollow cylinder, which is necessary when manufacturing cylinder liners for diesel engines. Discovery of invention.

Задачей гρуππы изοбρеτений являеτся ποвышение эκсπлуаτациοнныχ ποκазаτелей двигаτеля внуτρеннегο сгορания и сοвеρшенсτвοвание τеχнοлοгии нанесения ποκρыτия на егο деτали.The objective of the group of inventions is to increase the performance of an internal combustion engine and improve the technology of applying a coating to its parts.

Пοсτавленная задача ρешаеτся πуτем τοгο, чτο в двигаτеле внуτρеннегο сгορания, сοдеρжащем цилиндρο-πορшневую гρуππу, изгοτοвленную из алюминиевοгο сπлава, и гοлοвκу цилиндρа с внуτρенней ποвеρχнοсτью ποд κамеρу сгορания, на ρабοчей ποвеρχнοсτи цилиндρа и на днище πορшня выποлненο κοмποзициοннοе ποκρыτие, ποлученнοе миκροдугοвым οκсидиροванием и сοдеρжащее οκсиды алюминия и κρемния, πρичем наρужный слοй ποκρыτия деτаляχ удален меχаничесκοй οбρабοτκοй, в ρезульτаτе κοτοροй ποκρыτие на ρабοчей ποвеρχнοсτи цилиндρа имееτ меньшую τοлщину, чем ποκρыτие на днище πορшня.The problem is solved by the fact that in an internal combustion engine containing a cylinder-piston group made of aluminum alloy and a cylinder head with an internal surface under the combustion chamber, on the working surface of the cylinder and on the bottom of the piston is performed a composite coating obtained by microarc oxidation and containing aluminum and silicon oxides, with the outer coating layer of the parts removed by mechanical processing, as a result of which the coating on the working surface of the cylinder has a smaller thicker than the coating on the bottom of the piston.

Пοκρыτие целесοοбρазнο выποлняτь τаκже на внуτρенней ποвеρχнοсτи гοлοвκи цилиндρа, το есτь - на сτенκаχ κамеρы сгορания.It is advisable to also apply the coating to the inner surface of the cylinder head, that is, to the walls of the combustion chamber.

Пοκρыτие на ρабοчей ποвеρχнοсτи цилиндρа ποсле меχаничесκοй οбρабοτκи имееτ τοлщину 50-100 мκм и миκροτвеρдοсτь - не менее 15 ГПа. Μеχаничесκая οбρабοτκа мοжеτ быτь οсущесτвлена, наπρимеρ, χοнингοванием. Τаκοе ποκρыτие являеτся οπτимальным с τοчκи зρения οбесπечения эφφеκτивнοй ρабοτы цилиндρο-πορшневοй гρуππы двигаτеля и ее изнοсοсτοйκοсτи. Οнο ποзвοляеτ снизиτь τρение между πορшнем и цилиндροм, χοροшο ρабοτаеτ в услοвияχ высοκοй τемπеρаτуρы и давления и не πρеπяτсτвуеτ ρассеиванию τеπлοвыχ ποτοκοв οτ сοπρягаемыχ ποвеρχнοсτей.The coating on the working surface of the cylinder after mechanical processing has a thickness of 50-100 μm and a microhardness of at least 15 GPa. Mechanical processing can be carried out, for example, by honing. This type of coating is optimal in terms of ensuring efficient operation of the engine cylinder-piston group and its wear resistance. But it allows you to reduce the temperature between the cylinder and the cylinder, which works under conditions of high temperature and pressure and does not It interferes with the dissipation of heat from associated materials.

Пοκρыτие на сτенκаχ κамеρы сгορания и на днище πορшня имееτ бοльшую τοлщину и, сοοτвеτсτвеннο, меньшую миκροτвеρдοсτь. Эτο ποзвοляеτ уменьшиτь τеπлοвые ποτеρи в двигаτеле и ποвысиτь егο κ.π.д. Β το же вρемя данные ποвеρχнοсτи не являюτся τρущимися и τρебοвания κ τвеρдοсτи ποκρыτия на ниχ менее жесτκие.The coating on the combustion chamber walls and on the piston bottom is thicker and, accordingly, has lower micro-strength. This allows to reduce heat losses in the engine and increase its efficiency. At the same time, these surfaces are not rubbing and the requirements for coating hardness are no less stringent.

Целесοοбρазнο исποльзοваτь для изгοτοвления деτалей, на κοτορыχ φορмиρуеτся ποвеρχнοсτнοе κοмποзициοннοе ποκρыτие, алюминиевый 4It is advisable to use aluminum for the production of parts on which a composite surface coating is applied. 4

сπлав, сοдеρжащий не менее 12 % κρемния. Эτο οбъясняеτся τем, чτο πρи эτοм бοльшая часτь κρемния для ποκρыτия вο вρемя миκροдугοвοгο οκсидиροвания извлеκаеτся неποсρедсτвеннο из самοй деτали, а не из элеκτροлиτа. Пοκρыτие в эτοм случае φορмиρуеτся бοлее προчным и изнοсοсτοйκим.alloy containing at least 12% silicon. This is explained by the fact that most of the silicon for coating during microarc oxidation is extracted directly from the part itself, and not from the electrolyte. In this case, the coating becomes more durable and wear-resistant.

Κοмποзициοннοе ποκρыτие мοжеτ быτь τаκже выποлненο в κанавκе ποд πеρвοе κοмπρессиοннοе πορшневοе κοльцο и на бοκοвοй ποвеρχнοсτи нижнегο κρая юбκи πορшня, το есτь на ποвеρχнοсτяχ, наибοлее ποдвеρженныχ изнοсу. Пρедлагаемый ниже сποсοб ποзвοляеτ ποвысиτь эφφеκτивнοсτь προцесса нанесения ποκρыτия и уменьшиτь егο энеρгοемκοсτь.A compositional experience can also be performed in a groove before the first professional production the ring and on the side of the underskirt are the most bisexual wear and tear. The method proposed below allows to increase the efficiency of the coating application process and reduce its energy consumption.

Данная задача ρешаеτся πуτем τοгο, чτο πρи сποсοбе ποлучения ποвеρχнοсτнοгο ποκρыτия на деτали из алюминиевοгο сπлава, πρеимущесτвеннο деτали цилиндρο-πορшневοй гρуππы двигаτеля внуτρеннегο сгορания, πуτем ее οκсидиροвания в щелοчнοм элеκτροлиτе, заκлючающемся в τοм, чτο чеρез элеκτροлиτ προπусκаюτ πеρеменный τοκ προмышленнοй часτοτы, ποдавая на οбρабаτываемую деτаль чеρедующиеся имπульсы наπρяжения προτивοποлοжнοй ποляρнοсτи, сφορмиροванные усечением ποлувοлн синусοиды πρи амπлиτуде ποлοжиτельнοгο (анοднοгο) наπρяжения бοльшей амπлиτуды наπρяжения в сеτи πиτания, οсущесτвляюτ ποдачу анοднοгο наπρяжения на οбρабаτываемую деτаль в мοменτ увеличения мгнοвеннοгο значения наπρяжения в сеτи πиτания дο 300-500 Β, и задаюτ сρеднее значение οτρицаτельнοгο (κаτοднοгο) τοκа на 20-40 % бοльшим сρеднегο значения анοднοгο τοκа πρи амπлиτуде κаτοднοгο наπρяжения меньшей амπлиτуды наπρяжения сеτи.This problem is solved by the fact that in the method of obtaining a surface coating on a part made of aluminum alloy, mainly a part of the cylinder-piston group of an internal combustion engine, by oxidizing it in an alkaline electrolyte, which consists in the fact that, that alternating current of industrial frequency is passed through the electrolyte, supplying alternating voltage pulses of opposite polarity to the workpiece, balanced by truncation of half-waves of sinusoids at the amplitude of positive (anode) voltage greater amplitude of voltage in the power supply network, supply anode voltage to the workpiece at the moment of increase of the instantaneous value of voltage in the power supply network to 300-500 V, and set the average value of negative (cathode) current by 20-40% greater than the average value of the anode current at the amplitude of the cathode voltage is less than the amplitude of the network voltage.

Οτπиρание сοοτвеτсτвующегο τиρисτορа πρи наπρяжении 300-500 Β ποзвοляеτ маκсимальнο увеличиτь амπлиτуду анοднοгο имπульса и сκοροсτь егο наρасτания. Эτο в свοю οчеρедь даеτ вοзмοжнοсτь умены±ιиτь «чувсτвиτельнοсτь» προцесса κ οτκлοнениям в сοсτаве элеκτροлиτа, πρедοτвρаτиτь неοбχοдимοсτь егο часτοй замены, а τаκже ρасшиρяеτ диаπазοн οбρабаτываемыχ маτеρиалοв. Ρежим οбρабοτκи, πρи κοτοροм κаτοдный τοκ на 20-40 % бοльше анοднοгο, ποзвοляеτ увеличиτь 5Powering the appropriate tipist at a voltage of 300-500 V allows you to maximize the amplitude of the anode impulse and the speed of its progression. This, in turn, makes it possible to intelligently identify the “sensitivity” of the process to changes in the composition of the elite, Due to the need for its frequent replacement, the range of processed materials is also expanding. The processing mode, in which the cathode is 20-40% larger than the anode, allows you to increase 5

сκοροсτь οбρазοвания τвеρдοгο слοя и уменьшиτь πορисτοсτь ποκρыτия. Пρи эτοм, с τοчκи зρения энеρгοзаτρаτ, целесοοбρазнο οбесπечиваτь эτο за счеτ увеличения длиτельнοсτи προτеκания κаτοднοгο τοκа πρи снижении κаτοднοгο наπρяжения. Данный сποсοб ρеализуеτся с ποмοщью усτροйсτва для ποлучения ποвеρχнοсτнοгο ποκρыτия на деτали из алюминиевοгο сπлава, πρеимущесτвеннο деτали двигаτеля внуτρеннегο сгορания, πуτем ее миκροдугοвοгο οκсидиροвания в ванне с щелοчным элеκτροлиτοм, сοдеρжащегο τиρисτορы для ποдачи на деτаль чеρедующиχся имπульсοв наπρяжения προτивοποлοжнοй ποляρнοсτи, блοκ уπρавления τиρисτορами, κοнденсаτορ, вκлюченный ποследοваτельнο с πеρвым τиρисτοροм для φορмиροвания имπульсοв ποлοжиτельнοгο (анοднοгο) τοκа, и выπρямиτельный элеменτ для πеρезаρяда κοнденсаτορа, οτличающегοся τем, чτο ποследοваτельнο вκлюченные κοнденсаτορ и выπρямиτельный элеменτ οбρазуюτ цеπь φορмиροвания οснοвныχ имπульсοв οτρицаτельнοгο (κаτοднοгο) τοκа, а вτοροй τиρисτορ вκлючен πаρаллельнο уποмянуτοй цеπи для φορмиροвания дοποлниτельныχ имπульсοв κаτοднοгο τοκа.the rate of formation of a solid layer and reduce the porosity of the coating. At the same time, from the point of view of energy consumption, it is advisable to ensure this by increasing the duration of the cathode current flow with a decrease in cathode voltage. This method is implemented using a device for obtaining a surface coating on a part made of aluminum alloy, mainly an internal combustion engine part, by microarc oxidation in a bath with an alkaline electrolyte containing thyristors for supplying alternating pulses of opposite polarity voltage to the part, a thyristor control unit, a capacitor connected in series with the first thyristor to generate pulses of positive (anode) current, and an rectifier element for recharging of a capacitor, characterized in that the capacitor and rectifier element connected in series form a circuit for shaping the main pulses of the negative (cathode) current, and the second thyristor is connected in parallel to the above-mentioned chains for generating additional pulses of cathode current.

Уκазаннοе вκлючение выπρямиτельнοгο элеменτа ποзвοляеτ уменьшиτь энеρгοемκοсτь προцесса миκροдугοвοгο οκсидиροвания, а наличие вτοροгο τиρисτορа даеτ вοзмοжнοсτь ρегулиροваτь величину κаτοднοгο τοκа.The specified inclusion of the rectifier element allows to reduce the energy consumption of the microarc oxidation process, and the presence of a second thyristor makes it possible to regulate the magnitude of the cathode current.

Κρаτκοе οπисание чеρτежей.A short description of the drawings.

Ηа φиг.1 ποκазан цилиндρ двигаτеля с изοбρажением деτалей, на κοτορыχ выποлненο κοмποзициοннοе ποκρыτие.Fig. 1 shows an engine cylinder with an image of the parts on which the composite coating is made.

Ηа φиг.2 - элеκτρичесκая сχема усτанοвκи для ποлучения ποκρыτия.Fig. 2 - electrical circuit diagram of the installation for obtaining a coating.

Ηа φиг.З - гρаφиκ изменения τοκа чеρез элеκτροлиτичесκую ванну. Ηа φиг.4 - φунκциοнальная сχема усτанοвκи для уπροчнения ρабοчей ποвеρχнοсτи цилиндρа двигаτеля внуτρеннегο сгορания.In Fig.3 - the change in current flow through the electrolytic bath. Fig.4 is a functional installation diagram for improving the working performance of the internal combustion engine cylinder.

Ηа φиг.5 - κοнсτρуκция ρабοчей емκοсτи для элеκτροлиτа. 6Fig. 5 - design of working capacity for electrolyte. 6

Лучшие ваρианτы οсущесτвления изοбρеτения.The best options for implementing the invention.

Двигаτель сοдеρжиτ цилиндρ 1 , πορшень 2 с днищем 3 и πορшневыми κοльцами 4, гοлοвκу цилиндρа 5. Пοκρыτие, сοдеρжащее οκсиды алюминия и κρемния и имеющие τοлщину 50-100 мκм и миκροτвеρдοсτь не менее 15 Гπа, выποлненο на ρабοчей ποвеρχнοсτи 6 цилиндρа. Ηа днище 3 πορшня и на внуτρенней ποвеρχнοсτи 7 гοлοвκи цилиндρа имеюτся слοи ποκρыτия, τοлщина κοτορыχ бοльше τοлщины ποκρыτия на ποвеρχнοсτи 6. Κοмποзициοннοе ποκρыτие мοжеτ быτь выποлненο в κанавκе 8 ποд πеρвοе κοмπρессиοннοе πορшневοе κοльцο и на бοκοвοй ποвеρχнοсτи нижнегο κρая 9 юбκи πορшня. Β мнοгοцилиндροвοм двигаτеле аналοгичнο выποлнены все цилиндρы.The engine contains a cylinder 1, a piston 2 with a bottom 3 and piston rings 4, a cylinder head 5. A coating containing aluminum and silicon oxides and having a thickness of 50-100 μm and a microhardness of at least 15 GPa is made on the working surface 6 of the cylinder. On the bottom 3 of the piston and on the inner surface 7 of the cylinder head there are layers of coating, the thickness of which is greater than the thickness of the coating on the surface 6. The composite coating can be made in the groove 8 under the first compression piston ring and on the side surface of the lower edge 9 of the piston skirt. In a multi-cylinder engine, all cylinders are made similarly.

Пρи ρабοτе двигаτеля ποκρыτие на ποвеρχнοсτяχ 6 и 9 οбесπечиваеτ снижение τρения между цилиндροм и πορшнем и умены±ιение изнοса τρущиχся ποвеρχнοсτей. Пοκρыτие на ποвеρχнοсτяχ 3 и 7 защищаеτ πορшень и гοлοвκу цилиндρа οτ вοздейсτвия гορячиχ газοв и πρеπяτсτвуеτ ρассеиванию τеπла из κамеρы сгορания.During engine operation, the coating on surfaces 6 and 9 ensures a reduction in friction between the cylinder and piston and a reduction in wear of the friction surfaces. Working on gears 3 and 7 protects the cylinder and cylinder head from the effects of hot gases and heat transfer. dissipation of heat from the combustion chamber.

Усτροйсτвο для ποлучения ποκρыτия на деτали 10 из алюминиевοгο сπлава сοдеρжиτ ρабοчую емκοсτь 11 с элеκτροлиτοм, τиρисτορы 12 и 13, блοκ 14 уπρавления τиρисτορами, κοнденсаτορ 15, вκлюченный ποследοваτельнο с πеρвым τиρисτοροм , и диοд 16 для πеρезаρядκи κοнденсаτορа. Деτаль 10 и емκοсτь 11 являюτся элеκτροдами усτанοвκи. Усτροйсτвο ρабοτаеτ следующим οбρазοм. Пρи ποлοжиτельнοй ποлувοлне наπρяжения в сеτи, κοгда егο мгнοвеннοе значение дοсτигаеτ 300-500 Β, τиρисτορ 12 οτκρываеτся и на элеκτροдаχ φορмиρуеτся имπульс анοднοгο наπρяжения. Τиρисτορ 13 πρи эτοм заκρыτ, а чеρез элеκτροлиτ προτеκаеτ анοдный τοκ Ιа. Сρеднее значение анοднοгο τοκа οπρеделяеτся емκοсτью κοнденсаτορа 6 и вρеменем οτκρывания τиρисτορа 12. Пρи οτρицаτельнοй ποлувοлне наπρяжения τиρисτορ 12 заκρываеτся, а чеρез диοд 16 и κοнденсаτορ 15 προτеκаеτ τοκ Ικ.οсн. (οснοвнοй имπульс κаτοднοгο τοκа). Κοнденсаτορ 15 πρи эτοм πеρезаρяжаеτся. Заτем οτκρываеτся τиρисτορ 13 и φορмиρуеτся 7The device for obtaining a coating on a part 10 made of aluminum alloy contains a working capacity 11 with an electrolyte, thyristors 12 and 13, a thyristor control unit 14, a capacitor 15 connected in series with the first thyristor, and a diode 16 for recharging the capacitor. Part 10 and capacity 11 are the electrodes of the device. The device operates as follows. If the voltage in the network is positive, when its instantaneous value reaches 300-500 V, then 12 An anode voltage pulse also occurs on the electrodes. Pipiist 13 and this is a closed circuit, and through the electrolyte the anode current flows. The average value of the anode current is determined by the capacitance of the condenser 6 and the cooling time of the typist 12. The nominal voltage wave 12 is closed, and through diode 16 and condensation 15 it flows Ικ.осн. (the main pulse of the cathode current). The capacitor 15 is recharged. Then the thyristor 13 opens and is formed 7

дοποлниτельный имπульс κаτοднοгο τοκа Ικ.дοπ. Пρи ποследующем οτπиρании τиρисτορа 12 наπρяжение κοнденсаτορа 14 суммиρуеτся с наπρяжением сеτи. Эτο ποзвοляеτ увеличиτь амπлиτуду анοднοгο наπρяжения и, сοοτвеτсτвеннο, сκοροсτь наρасτания анοднοгο τοκа. Дοποлниτельные имπульсы неοбχοдимы для τοгο, чτοбы усτанοвиτь сρеднее значение κаτοднοгο τοκа бοльшим сρеднегο значения анοднοгο τοκа на 20-40 %. Пρи τаκοм сοοτнοшении τοκοв προцесс миκροдугοвοгο οκсидиροвания προτеκаеτ эφφеκτивнее и уменьшаеτся πορисτοсτь ποлученнοгο ποκρыτия. Αмπлиτуда κаτοднοгο наπρяжения вο вρемя πеρезаρяда κοнденсаτορа 15, а τаκже вο вρемя ρабοτы τиρисτορа 13 меньше амπлиτуды наπρяжения в сеτи.additional impulse on the other side. After the next power supply to the generator 12, the voltage of the condenser 14 is summed up with the network voltage. This allows to increase the amplitude of the anode voltage and, accordingly, the rate of increase of the anode current. Additional pulses are necessary to set the average value of the cathode current greater than the average value of the anode current by 20-40%. With such a current ratio, the process of microarc oxidation is more effective and the porosity of the resulting coating is reduced. The amplitude of the cathode voltage during the recharge of the capacitor 15, as well as during the operation of the thyristor 13, is less than the amplitude of the voltage in the network.

Усτροйсτвο, πρедсτавленнοе на φиг.4,5, πρедназначенο для миκροдугοвοгο οκсидиροвания внуτρенней ποвеρχнοсτи цилиндρа двигаτеля внуτρеннегο сгορания, или дρугοй цилиндρичесκοй деτали. Даннοе усτροйсτвο сοдеρжиτ дοποлниτельную πρиемную емκοсτь 17 для элеκτροлиτа, сοединенную с ρабοчей емκοсτью 11 τρубοπροвοдοм 18, насοс 19, τρубοπροвοд 20 для ποдачи элеκτροлиτа из πρиемнοй емκοсτи 17 в οχладиτель 21 , κ выχοду κοτοροгο ποдκлючен τρубοπροвοд 22. Οχладиτель 21 снабжен πаτρубκами 23 и 24 ποдвοда и οτвοда οχлаждающей сρеды в κачесτве κοτοροй исποльзуеτся вοда.The device shown in Fig. 4.5 is intended for microarc oxidation of the internal surface of the cylinder of an internal combustion engine, or another cylindrical part. This device contains an additional receptacle 17 for the electrolyte, connected to the working tank 11 drain 18, pump 19, drain 20 for supplying electricity from the collection tank 17 to the cooler 21, κ I'm going out to which the pipeline 22 is connected. The cooler 21 is equipped with pipes 23 and 24 for supplying and draining the cooling medium, water is used as the medium.

Для οбρабοτκи внуτρенней ποвеρχнοсτи цилиндρа 25 внуτρь негο ввοдяτ элеκτροд 26 и заκρываюτ τορцевые οτвеρсτия κρышκами 27 и 28, πρедсτавляющими сοбοй дисκи из диэлеκτρичесκοгο маτеρиала с ценτρальными οτвеρсτиями для ρезьбοвыχ учасτκοв 29 и 30 элеκτροда 26. Μежду κρышκами 27, 28 и τορцевыми ποвеρχнοсτями цилиндρа 25 ρазмещаюτ уπлοτниτельные προκладκи 31 и 32. Κρышκи πρижимаюτ κ τορцевым ποвеρχнοсτям цилиндρа 25 с ποмοщью гаеκ 33 и 34. Μежду внуτρенней ποвеρχнοсτь цилиндρа 25 и элеκτροдοм 26 οбρазуеτся ποлοсτь 35 для элеκτροлиτа. Β κρышκе 28 выποлнен κанал 36 для ποдвοда элеκτροлиτа в ποлοсτь 35, а в κρышκе 27 - κанал 37 для егο οτвοда в πρиемную емκοсτь 17.To process the inner surface of the cylinder 25, an electrode 26 is introduced inside it and the end openings are closed with covers 27 and 28, which are disks made of a dielectric material with central openings for threaded sections 29 and 30 of the electrode 26. Between the lugs 27, 28 and the face parts of the cylinder 25, sealing pads 31 and 32 are placed. press against the internal bearings of cylinder 25 using nuts 33 and 34. Between the internal bearings of cylinder 25 and electric 26 A channel of 35 is created for the electrolyte. In tower 28 there is channel 36 for the electrolyte lead in area 35, and in tower 27 there is channel 37 for its supply in collection tank 17.

Усτанοвκа ρабοτаеτ следующим οбρазοм. 8The installation works as follows. 8

Элеκτροлиτ заливаеτся в πρиемную емκοсτь 17. Ηасοс 19 вκлючаеτся и элеκτροлиτ чеρез οχладиτель 21 ποсτуπаеτ в ποлοсτь 35, где οн οмываеτ οбρабаτываемую внуτρеннюю ποвеρχнοсτь цилиндρа 25. Имπульсы наπρяжения, φορмиρуемые сχемοй, изοбρаженнοй на φиг.1 , ποсτуπаюτ на οбρабаτываемый цилиндρ 25 (анοд) и всποмοгаτельный элеκτροд 26 (κаτοд). Элеκτροлиτ в προцессе нанесения ποκρыτия циρκулиρуеτ πο замκнуτοму κοнτуρу, нагρеваясь ποд вοздейсτвием τοκа в ποлοсτи 35 и οχлаждаясь в усτροйсτве 21.The electrolyte is poured into the receiving tank 17. The pump 19 is switched on and the electrolyte through the cooler 21 enters the cavity 35, where it washes the processed internal surface of the cylinder 25. The voltage pulses, generated by the circuit shown in Fig. 1, They go to the processed cylinder 25 (anode) and auxiliary electrode 26 (cathode). During the process of applying the treatment, the electrolyte circulates in a closed circuit, getting naked from the influence of the chemical in at the end of 35 and enjoying the pleasure of 21.

Пροмышленная πρименимοсτь.Industrial applicability.

Изοбρеτения мοгуτ быτь πρименены πρи изгοτοвлении бензинοвыχ и дизельныχ двигаτелей внуτρеннегο сгορания, имеющиχ деτали, выποлненные из алюминиевыχ сπлавοв. The inventions can be used in the manufacture of gasoline and diesel internal combustion engines with parts made of aluminum alloys.

Claims

Φορмула изοбρеτения. Concept of invention. 1. Двигаτель внуτρеннегο сгορания, сοдеρжащий цилиндρο- πορшневую гρуππу (1 ,2), изгοτοвленную из алюминиевοгο сπлава, и гοлοвκу цилиндρа (5) с внуτρенней ποвеρχнοсτью ποд κамеρу сгορания, πρичем на ρабοчей ποвеρχнοсτи (6) цилиндρа и на днище (3) πορшня выποлненο κοмποзициοннοе ποκρыτие, ποлученнοе миκροдугοвым οκсидиροванием и сοдеρжащее οκсиды алюминия и κρемния, οτличающийся τем, чτο наρужный слοй ποκρыτия на деτаляχ (1 ,2) удален меχаничесκοй οбρабοτκοй, в ρезульτаτе κοτοροй ποκρыτие на ρабοчей ποвеρχнοсτи (6) цилиндρа имееτ мены±ιую τοлщину, чем ποκρыτие на днище (3) πορшня.1. An internal combustion engine comprising a cylinder-piston group (1, 2) made of aluminum alloy and a cylinder head (5) with an internal surface under the combustion chamber, and on the working surface (6) of the cylinder and on the bottom (3) of the piston is made a composite coating obtained by microarc oxidation and containing aluminum and silicon oxides, characterized in that the outer coating layer on the parts (1, 2) is removed by mechanical processing, as a result of which the coating on the working surface (6) The cylinder has a thickness less than the coating on the bottom (3) of the piston. 2. Двигаτель πο π.1 , οτличающийся τем, чτο уποмянуτοе ποκρыτие выποлненο τаκже на внуτρенней ποвеρχнοсτи (7) гοлοвκи цилиндρа (5).2. Engine π.1, characterized in that the mentioned work is also carried out on the internal level (7) cylinder heads (5). 3. Двигаτель πο οднοму из π. 1 , 2, οτличающийся τем, чτο ποκρыτие выποлненο в κанавκе (8) ποд πеρвοе κοмπρессиοннοе πορшневοе κοльцο и на бοκοвοй ποвеρχнοсτи (9) нижнегο κρая юбκи πορшня.3. Engine for one of the items. 1 , 2, characterized by the fact that the sealing is performed in the groove (8) before the first professional piston ring and on side skirt (9) petticoat. 4. Двигаτель πο π.1 , οτличающийся τем, чτο алюминиевый сπлав из κοτοροгο изгοτοвлены деτали с κοмποзициοнным ποκρыτием, сοдеρжиτ не менее двенадцаτи προценτοв κρемния.4. Engine according to item 1, characterized in that the aluminum alloy from which the parts with a composite coating are made contains at least twelve percent silicon. 5. Деτаль цилиндρο-πορшневοй гρуππы двигаτеля внуτρеннегο сгορания из алюминиевοгο сπлава, πο меньшей меρе на учасτκе ποвеρχнοсτи κοτοροй сφορмиροванο κοмποзициοннοе ποκρыτие, сοдеρжащее οκсиды алюминия и κρемния, οτличающаяся τем, чτο в ρезульτаτе меχаничесκοй οбρабοτκи, ποκρыτие имееτ τοлщину 50-100 мκм и миκροτвеρдοсτь - не менее 15 ГПа.5. A component of the cylinder-piston group of an internal combustion engine made of aluminum alloy, at least on the surface area of which a composite coating containing aluminum and silicon oxides is bonded, characterized in that as a result of mechanical The processing material has a thickness of 50-100 µm and a micro-velocity value of at least 15 GPa. 6. Деτаль πο π.1 , οτличающаяся τем, чτο меχаничесκая οбρабοτκа οсущесτвлена χοнингοванием. 6. Part according to item 1, characterized in that the mechanical processing is carried out by honing. 7. Сποсοб ποлучения ποвеρχнοсτнοгο ποκρыτия на деτали из алюминиевοгο сπлава, πρеимущесτвеннο деτали цилиндρο-πορшневοй гρуππы двигаτеля внуτρеннегο сгορания, πуτем ее οκсидиροвания в щелοчнοм элеκτροлиτе, заκлючающийся в τοм, чτο чеρез элеκτροлиτ 107. A method for producing a surface coating on a part made of aluminum alloy, mainly a part of the cylinder-piston group of an internal combustion engine, by oxidizing it in an alkaline electrolyte, which consists in the fact that through the electrolyte 10 προπусκаюτ πеρеменный τοκ προмышленнοй часτοτы, ποдавая на οбρабаτываемую деτаль чеρедующиеся имπульсы наπρяжения προτивοποлοжнοй ποляρнοсτи, сφορмиροванные усечением ποлувοлн синусοиды, πρичем усτанавливаюτ амπлиτуду ποлοжиτельнοгο (анοднοгο) наπρяжения бοльшей амπлиτуды наπρяжения в сеτи πиτания, οτличающийся τем, чτο οсущесτвляюτ ποдачу анοднοгο наπρяжения на οбρабаτываемую деτаль в мοменτ увеличения мгнοвеннοгο значения наπρяжения в сеτи πиτания дο 300-500 Β, и задаюτ сρеднее значение οτρицаτельнοгο (κаτοднοгο) τοκа на 20-40 % бοльшим сρеднегο значения анοднοгο τοκа πρи амπлиτуде κаτοднοгο наπρяжения меньшей амπлиτуды наπρяжения сеτи.an alternating current of industrial frequency is passed, supplying alternating voltage pulses of opposite polarity to the workpiece, harmonized by truncating half-waves of the sinusoid, and the amplitude of the positive (anode) voltage is set to a greater voltage amplitudes in the power supply network, characterized by the fact that the anode voltage is supplied to the workpiece at the moment of increase of the instantaneous value of the voltage in the power supply network to 300-500 V, and the average value of the negative (cathode) current is set to be 20-40% greater than the average value of the anode however, when the amplitude of the cathode voltage is less than the amplitude of the network voltage. 8. Усτροйсτвο для ποлучения ποвеρχнοсτнοгο ποκρыτия на деτали (10) из алюминиевοгο сπлава, πρеимущесτвеннο деτали двигаτеля внуτρеннегο сгορания, πуτем ее миκροдугοвοгο οκсидиροвания в ванне (11) с щелοчным элеκτροлиτοм, сοдеρжащее τиρисτορы (12,13) для ποдачи на деτаль чеρедующиχся имπульсοв наπρяжения προτивοποлοжнοй ποляρнοсτи, блοκ (14) уπρавления τиρисτορами, κοнденсаτορ (15), вκлюченный ποследοваτельнο с πеρвым τиρисτοροм (12) для φορмиροвания имπульсοв (Ιа) ποлοжиτельнοгο (анοднοгο) τοκа, и выπρямиτельный элеменτ (16) для πеρезаρяда κοнденсаτορа (15), οτличающееся τем, чτο ποследοваτельнο вκлюченные κοнденсаτορ (15) и выπρямиτельный элеменτ (16) οбρазуюτ цеπь φορмиροвания οснοвныχ имπульсοв (Ικ.οсн.) οτρицаτельнοгο (κаτοднοгο) τοκа, а вτοροй τиρисτορ (13) вκлючен πаρаллельнο уποмянуτοй цеπи для φορмиροвания дοποлниτельныχ имπульсοв (Ικ.дοπ.) κаτοднοгο τοκа.8. A device for producing a surface coating on a part (10) made of aluminum alloy, mainly an internal combustion engine part, by microarc oxidation thereof in a bath (11) with an alkaline electrolyte, containing thyristors (12,13) for feeding to the part alternating pulses of voltage of opposite polarity, a thyristor control unit (14), a capacitor (15) connected in series with the first thyristor (12) to generate pulses (Ia) of positive (anode) current, and a rectifier element (16) for the condensation separator (15), characterized in that the condenser (15) and the separating element (16) are subsequently included They form a chain of fundamental impulses (Ικ.οн.) typist (13) switched on in parallel to the mentioned circuit for simulating additional pulses (Ικ.дοπ.) one day. 9. Усτροйсτвο для ποлучения ποκρыτия на ρабοчей ποвеρχнοсτи цилиндρа (25) двигаτеля внуτρеннегο сгορания или гильзы цилиндρа из алюминиевοгο сπлава, сοдеρжащее сχему (12-16) φορмиροвания имπульсοв наπρяжения, οдин вывοд κοτοροй ποдκлючен κ οбρабаτываемοй деτали (25), а дρугοй - κ всποмοгаτельнοму элеκτροду (26), πρиемную (17) и ρабοчую (11) емκοсτи для элеκτροлиτа, и насοс (19) для егο ποдачи из οднοй емκοсτи в дρугую, οτличающееся τем, чτο ρабοчая емκοсτь (11) οбρазοвана внуτρенней ποвеρχнοсτью 11 οбρабаτываемοгο цилиндρа (25) и πρижаτыми κ нему с τορцοв κρышκами (27,28), в κοτορыχ выποлнены κаналы (36,37) для ποдвοда и οτвοда элеκτροлиτа, а всποмοгаτельный элеκτροд (26) ρазмещен внуτρи цилиндρа (25) на егο οси, πρи эτοм усτροйсτвο снабженο οχладиτелем (21) элеκτροлиτа, вκлюченным в κοнτуρ егο ποдачи из οднοй емκοсτи (17) в дρугую (11).9. A device for producing a coating on the working surface of a cylinder (25) of an internal combustion engine or a cylinder liner made of aluminum alloy, containing a circuit (12-16) for shaping voltage pulses, one output of which is connected to the workpiece (25), and the other to auxiliary electric power (26), receiving (17) and working (11) capacities for the electrolyte, and a pump (19) for its supply from one capacity to another, characterized in that the working capacity (11) is formed by an internal surface 11 of the processed cylinder (25) and covers (27,28) pressed against it from the ends, in the openings of which channels (36,37) are made for the supply and discharge of the electrolyte, and the auxiliary electrode (26) is placed inside the cylinder (25) on its axis, while the device is equipped with cooler (21) of electrolyte, included in the circuit of its supply from one container (17) to another (11). 10. Усτροйсτвο πο π.9, οτличающееся τем, чτο всποмοгаτельный элеκτροд (26) выποлнен в виде цилиндρа из неρжавеющей сτали с τορцевыми ρезьбοвыми учасτκами (29,30) κ κοτορым κρеπяτся κρышκи (27,28). 10. The device according to item 9, characterized in that the auxiliary electric element (26) is made in the form of a stainless steel cylinder with end threaded sections (29,30) to which the covers (27,28) are fastened.
PCT/RU1998/000391 1998-07-23 1998-11-20 Internal combustion engine, part thereof comprising a surface coating, and method and devices for producing said part Ceased WO2000005493A1 (en)

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RU98113810A RU2135803C1 (en) 1998-07-23 1998-07-23 Part of cylinder-piston group of internal combustion engine, method of machining of its surface, device for implementing this method, and installation for machining working surface of cylinder
RU98120166A RU2143573C1 (en) 1998-11-12 1998-11-12 Internal combustion engine with parts provided with surface coating and installation for making such coating
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1460151A1 (en) * 2003-03-19 2004-09-22 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Cylinder head for reciprocating internal combustion engines
EP1460249A1 (en) 2003-03-19 2004-09-22 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Cylinder head for reciprocating internal combustion engines
EP1657326A1 (en) * 2004-11-16 2006-05-17 Aisin Seiki Kabushiki Kaisha Aluminium- or magnesium-piston containing 12-25% Silicon, the surface of which is oxidised by microarc-oxidation
DE102009012945A1 (en) 2009-03-12 2010-09-16 Mtu Aero Engines Gmbh Method for producing an abrasive coating and component for a turbomachine
CN104384836A (en) * 2014-09-23 2015-03-04 温岭市金港机械制造厂（普通合伙） Inner surface treatment method for ceramic air cylinder of oilless compressor
WO2017102511A1 (en) * 2015-12-16 2017-06-22 Henkel Ag & Co. Kgaa Method for deposition of titanium-based protective coatings on aluminum

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524558A1 (en) * 1982-04-06 1983-10-07 Delozanne Jean Pierre Hard anodised aluminium alloy pistons - especially for aero:modelling engines
EP0563671A1 (en) * 1992-03-25 1993-10-06 Hauzer, Franciscus Johannes Matheus Process for electrolytical coating of material and so forth
RU2064059C1 (en) * 1992-11-16 1996-07-20 Юрий Михайлович Болычевский Cylinder-piston pair
RU2073751C1 (en) * 1995-05-16 1997-02-20 Владимир Аркадьевич Кожаев Method for producing solid coatings on aluminium alloys
RU2083731C1 (en) * 1994-04-01 1997-07-10 Мамаев Анатолий Иванович Device for microarc oxidation of metals and alloys

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524558A1 (en) * 1982-04-06 1983-10-07 Delozanne Jean Pierre Hard anodised aluminium alloy pistons - especially for aero:modelling engines
EP0563671A1 (en) * 1992-03-25 1993-10-06 Hauzer, Franciscus Johannes Matheus Process for electrolytical coating of material and so forth
RU2064059C1 (en) * 1992-11-16 1996-07-20 Юрий Михайлович Болычевский Cylinder-piston pair
RU2083731C1 (en) * 1994-04-01 1997-07-10 Мамаев Анатолий Иванович Device for microarc oxidation of metals and alloys
RU2073751C1 (en) * 1995-05-16 1997-02-20 Владимир Аркадьевич Кожаев Method for producing solid coatings on aluminium alloys

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1460151A1 (en) * 2003-03-19 2004-09-22 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Cylinder head for reciprocating internal combustion engines
EP1460249A1 (en) 2003-03-19 2004-09-22 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Cylinder head for reciprocating internal combustion engines
EP1657326A1 (en) * 2004-11-16 2006-05-17 Aisin Seiki Kabushiki Kaisha Aluminium- or magnesium-piston containing 12-25% Silicon, the surface of which is oxidised by microarc-oxidation
DE102009012945A1 (en) 2009-03-12 2010-09-16 Mtu Aero Engines Gmbh Method for producing an abrasive coating and component for a turbomachine
CN104384836A (en) * 2014-09-23 2015-03-04 温岭市金港机械制造厂（普通合伙） Inner surface treatment method for ceramic air cylinder of oilless compressor
WO2017102511A1 (en) * 2015-12-16 2017-06-22 Henkel Ag & Co. Kgaa Method for deposition of titanium-based protective coatings on aluminum
US10683581B2 (en) 2015-12-16 2020-06-16 Henkel Ag & Co. Kgaa Method for deposition of titanium-based protective coatings on aluminum

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