DE3814433A1 - Roller mill and method for coating a roller - Google Patents
Roller mill and method for coating a rollerInfo
- Publication number
- DE3814433A1 DE3814433A1 DE19883814433 DE3814433A DE3814433A1 DE 3814433 A1 DE3814433 A1 DE 3814433A1 DE 19883814433 DE19883814433 DE 19883814433 DE 3814433 A DE3814433 A DE 3814433A DE 3814433 A1 DE3814433 A1 DE 3814433A1
- Authority
- DE
- Germany
- Prior art keywords
- weight
- wear
- wear layer
- roller mill
- cast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000011248 coating agent Substances 0.000 title description 2
- 238000000576 coating method Methods 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000009750 centrifugal casting Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000002923 metal particle Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910001060 Gray iron Inorganic materials 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000010955 niobium Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- 229910001141 Ductile iron Inorganic materials 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- 239000010410 layer Substances 0.000 description 9
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000283153 Cetacea Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
- B02C4/305—Wear resistant rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Die Erfindung betrifft eine Walzenmühle (entspre chend dem Oberbegriff des Anspruches 1) sowie ein Verfahren (gemäß dem Gattungsbegriff des Anspru ches 4) zur Herstellung des mit einer Verschleiß schicht versehenen Walzenmantels einer Walzenmüh le.The invention relates to a roller mill (corre chend the preamble of claim 1) and a Procedure (according to the generic term of claim ches 4) to manufacture the with a wear layered roll shell of a roll mill le.
Die zur Zerkleinerung von sprödem Mahlgut dienen den, mit hohem Druck gegeneinander gepreßten Wal zen von Walzenmühlen unterliegen einem hohen Ver schleiß. Bisher werden diese Walzen entweder aus verschleißfestem Guß oder aus Schmiedestahl mit einem aufgeschweißten, verschleißhemmenden Hart auftrag hergestellt. Beide Herstellungsarten ha ben den Nachteil, daß aus physikalischen Gründen kaum Härten < 63 HRc erreicht werden können, wo mit dem Verschleißwiderstand eine natürliche Grenze gesetzt ist.They are used to crush brittle regrind the whale pressed against each other at high pressure roller mills are subject to high ver wear. So far, these rollers are either out wear-resistant cast or forged steel with a welded, wear-resistant hard order made. Both types of production ha ben the disadvantage that for physical reasons Hardness <63 HRc can hardly be achieved where natural wear resistance Limit is set.
Die Aufbringung von höherwertigen Verschleiß schutzschichten, beispielsweise aus Hartmetall, scheitert bisher an einer zuverlässigen (und da mit aus Gründen der Betriebssicherheit vertret baren) mechanischen Verbindung.The application of higher quality wear protective layers, for example made of hard metal, has so far failed due to a reliable (and there with represented for reasons of operational safety mechanical connection.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Walzenmühle entsprechend dem Oberbegriff des Anspruches 1 bzw. ein Verfahren gemäß dem Gat tungsbegriff des Anspruches 4 so auszubilden, daß extrem hohe Härten der Beschichtung erzielbar sind.The invention is therefore based on the object a roller mill according to the preamble of Claim 1 or a method according to the gat tion concept of claim 4 so that extremely high hardness of the coating can be achieved.
Diese Aufgabe wird erfindungsgemäß durch die kenn zeichnenden Merkmale der Ansprüche 1 bzw. 4 ge löst. Zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by the kenn Drawing features of claims 1 and 4 ge solves. Useful embodiments of the invention are the subject of the subclaims.
Die Erfindung macht von der Erkenntnis Gebrauch, daß verschleißbeständige Verbundkörper durch Ein gießen von Hartmetallschrot in eine Gußform herge stellt werden können (vgl. DE-B- 33 15 125). Mit diesem Verfahren lassen sich Schichten mit einer Härte bis zu etwa 1100 HV erzielen.The invention makes use of the knowledge that wear-resistant composite body by a pour hard metal shot into a mold can be provided (cf. DE-B-33 15 125). With This method can be used to create layers with a Achieve hardness up to about 1100 HV.
Die Herstellung des mit einer Verschleißschicht versehenen Walzenmantels erfolgt erfindungsgemäß im Schleudergießverfahren. Hierbei wird zunächst die Verschleißschicht aus einem besonders ver schleißfesten Material hergestellt und anschließend diese Verschleißschicht mit einem den Kern des Walzenmantels bildenden, duktilen Werkstoff hin tergossen.The manufacture of the with a wear layer provided roll shell takes place according to the invention by centrifugal casting. This will start with the wear layer from a particularly ver made of wear-resistant material and then this wear layer with a the core of the Ductile material forming the roll shell poured out.
In der ersten Stufe des Verfahrens wird zur Her stellung der Verschleißschicht eine Hartmetall- Flüssigstahl-Kombination in die sich drehende ho rizontale oder vertikale Gießform eingeschleudert. Die eingebrachte Menge bestimmt die Verschleiß schichtstärke.In the first stage of the process, Her position of the wear layer a hard metal Liquid steel combination in the rotating ho thrown horizontal or vertical mold. The amount brought in determines the wear layer thickness.
Dann wird in der zweiten Stufe des Verfahrens der erforderliche Restquerschnitt mit einem in den me chanischen Gütewerten bestimmbaren, duktilen Werk stoff hintergossen.Then in the second stage of the process the required residual cross section with a in the me chanic quality values determinable, ductile work cast in fabric.
Die äußere Form des so hergestellen Walzenmantels bzw. Walzenkörpers bedarf keiner mechanischen Nacharbeit. Der aus dem Hinterguß bestehende Rest körper kann mit herkömmlichen Mitteln einfach be arbeitet werden.The outer shape of the roll shell produced in this way or roller body requires no mechanical Rework. The rest of the backing body can be easily with conventional means be working.
Der zur Herstellung der Verschleißschicht dienen de Basiswerkstoff kann aus 0,001 bis 1,5 Gew.-% Kohlenstoff, 0,5 bis 8 Gew.-% Bor, 1 bis 8 Gew.-% Niob, 0,2 bis 6 Gew.-% Chrom, 0 bis 30 Gew.-% Nik kel, 0 bis 10 Gew.-% Mangan, 0 bis 6 Gew.-% Vana din, 0 bis 5 Gew.-% Molybdän, 0 bis 5 Gew.-% Sili cium sowie Rest Eisen zusammengesetzt sein, wobei die Hartstoff- und Hartmetallteilchen einen Durch messer von 0,1 bis 20 mm aufweisen. Der Anteil der Hartstoff- und Hartmetallteilchen in der Ver schleißbeständigen Zone kann zwischen 25 und 95 Vol.-% liegen.The serve to produce the wear layer de Base material can consist of 0.001 to 1.5% by weight Carbon, 0.5 to 8% by weight boron, 1 to 8% by weight Niobium, 0.2 to 6 wt% chromium, 0 to 30 wt% Nik kel, 0 to 10 wt% manganese, 0 to 6 wt% vana din, 0 to 5 wt% molybdenum, 0 to 5 wt% sili cium and remainder iron be composed, whereby the hard material and hard metal particles a through have a diameter of 0.1 to 20 mm. The share of Hard material and hard metal particles in the Ver wear resistant zone can be between 25 and 95 vol .-% are.
Denkbar ist auch, als Basiswerkstoff zur Einbet tung der Hartstoff- und Hartmetallteilchen norma le Kohlenstoffstähle in der erforderlichen Festig keit zu verwenden.It is also conceivable as a base material for embedding processing of the hard material and hard metal particles norma le carbon steels in the required strength use.
Als Werkstoff für den Kern des Walzenmantels kön nen Kohlenstoffstähle, legierte Stähle, Kugel graphitguß oder Grauguß verwendet werden.As a material for the core of the roll shell can carbon steels, alloy steels, balls graphite cast iron or gray cast iron can be used.
In der Zeichnung ist schematisch ein Schnitt durch einen erfindungsgemäßen Walzenmantel veranschau licht. Er enthält eine äußere Verschleißschicht 1 und einen als Trägermaterial für die Verschleiß schicht 1 dienenden Kern 2.In the drawing, a section through a roller shell according to the invention is schematically illustrated light. It includes an outer wear layer 1 and a layer as carrier material for the wear 1 serving core. 2
Im Rahmen der Erfindung ist es möglich, nicht nur einen Walzenmantel in der beschriebenen Weise zu fertigen, sondern den Hinterguß mit duktilem Werk stoff bis zu den Wellenzapfen von Vollwalzen aus zuführen.Within the scope of the invention it is possible not only a roll shell in the manner described manufacture, but the back casting with ductile work made of solid rolls up to the shaft journals respectively.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883814433 DE3814433A1 (en) | 1988-04-28 | 1988-04-28 | Roller mill and method for coating a roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883814433 DE3814433A1 (en) | 1988-04-28 | 1988-04-28 | Roller mill and method for coating a roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3814433A1 true DE3814433A1 (en) | 1989-11-09 |
Family
ID=6353141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19883814433 Withdrawn DE3814433A1 (en) | 1988-04-28 | 1988-04-28 | Roller mill and method for coating a roller |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3814433A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0476496A1 (en) * | 1990-09-20 | 1992-03-25 | Magotteaux International | Process for fabrication of a bimetallic casting and a wear resisting part according to said process |
| US5203513A (en) * | 1990-02-22 | 1993-04-20 | Kloeckner-Humboldt-Deutz Aktiengesellschaft | Wear-resistant surface armoring for the rollers of roller machines, particularly high-pressure roller presses |
| DE4210395A1 (en) * | 1992-03-30 | 1993-10-07 | Krupp Polysius Ag | Roller mill |
| DE4232045A1 (en) * | 1992-09-24 | 1994-03-31 | Krupp Polysius Ag | Brittle-material crusher with contra-rotating tools - has tool length less than dia. and gap between them less than thickness of crushed material in scab form |
| EP0646052A4 (en) * | 1992-06-19 | 1997-06-11 | Commw Scient Ind Res Org | Rolls for metal shaping. |
| WO2005113185A1 (en) * | 2004-05-21 | 2005-12-01 | Tronox Pigments International Gmbh | Particle bed roller mill |
| WO2007096215A1 (en) * | 2006-02-20 | 2007-08-30 | Siemens Aktiengesellschaft | Grinding tool with a coating |
| DE102014000165A1 (en) * | 2014-01-07 | 2015-07-09 | Horst Diesing | Alloy and process for matrix intrinsic tribocharged manganese oxide coatings for increased service life of hot working tools from S (HSS) iron base alloys |
| DE102014006427A1 (en) * | 2014-05-02 | 2015-11-05 | Khd Humboldt Wedag Gmbh | Roller with wear protection layer for a roller press |
| CN107185965A (en) * | 2017-06-19 | 2017-09-22 | 太仓市钧胜轧辊有限公司 | A kind of high abrasion roll |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE609718C (en) * | 1933-08-18 | 1935-02-22 | Fried Krupp Akt Ges | Process for the production of bores in rolls consisting of hard materials that are difficult to machine, e.g. B. grinding rollers |
| DE1136558B (en) * | 1956-09-21 | 1962-09-13 | United States Pipe Foundry | Roll and process for their manufacture |
| DE1879279U (en) * | 1963-03-26 | 1963-09-12 | Karl Steffens G M B H | ROLLER AND GRINDING BOWL FOR ROLLER AND SIMILAR MILLS. |
| DE2203905A1 (en) * | 1971-01-28 | 1972-08-17 | Dunford Hadfields Ltd | Tool for hot working and steel alloy for making such a tool |
| DE2317290A1 (en) * | 1972-04-12 | 1973-10-25 | Ugine Aciers | USE OF HIGH STRENGTH STEELS FOR THE MANUFACTURING OF IMPACT, IMPACT AND CONTINUOUSLY USED PARTS |
| GB1450303A (en) * | 1973-03-30 | 1976-09-22 | Hitachi Metals Ltd | Composite sleeves vor use in rolling mills |
| DE3515198A1 (en) * | 1984-04-28 | 1985-10-31 | Akebono Brake Industry Co., Ltd., Tokio/Tokyo | Iron-containing brake disc material |
| DE3543601A1 (en) * | 1984-12-10 | 1986-06-19 | Toyota Jidosha K.K., Toyota, Aichi | Heat-resistant cast steel (crucible steel) |
| DE3725267A1 (en) * | 1986-08-12 | 1988-03-24 | Breitenbach Gmbh H | Apparatus for processing and comminuting clays containing, in particular, pyrite and/or lime or for processing and comminuting similar raw materials for the production of ceramics |
-
1988
- 1988-04-28 DE DE19883814433 patent/DE3814433A1/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE609718C (en) * | 1933-08-18 | 1935-02-22 | Fried Krupp Akt Ges | Process for the production of bores in rolls consisting of hard materials that are difficult to machine, e.g. B. grinding rollers |
| DE1136558B (en) * | 1956-09-21 | 1962-09-13 | United States Pipe Foundry | Roll and process for their manufacture |
| DE1879279U (en) * | 1963-03-26 | 1963-09-12 | Karl Steffens G M B H | ROLLER AND GRINDING BOWL FOR ROLLER AND SIMILAR MILLS. |
| DE2203905A1 (en) * | 1971-01-28 | 1972-08-17 | Dunford Hadfields Ltd | Tool for hot working and steel alloy for making such a tool |
| DE2317290A1 (en) * | 1972-04-12 | 1973-10-25 | Ugine Aciers | USE OF HIGH STRENGTH STEELS FOR THE MANUFACTURING OF IMPACT, IMPACT AND CONTINUOUSLY USED PARTS |
| GB1450303A (en) * | 1973-03-30 | 1976-09-22 | Hitachi Metals Ltd | Composite sleeves vor use in rolling mills |
| DE3515198A1 (en) * | 1984-04-28 | 1985-10-31 | Akebono Brake Industry Co., Ltd., Tokio/Tokyo | Iron-containing brake disc material |
| DE3543601A1 (en) * | 1984-12-10 | 1986-06-19 | Toyota Jidosha K.K., Toyota, Aichi | Heat-resistant cast steel (crucible steel) |
| DE3725267A1 (en) * | 1986-08-12 | 1988-03-24 | Breitenbach Gmbh H | Apparatus for processing and comminuting clays containing, in particular, pyrite and/or lime or for processing and comminuting similar raw materials for the production of ceramics |
Non-Patent Citations (1)
| Title |
|---|
| DE-AN D7466, 50c, 13/10 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203513A (en) * | 1990-02-22 | 1993-04-20 | Kloeckner-Humboldt-Deutz Aktiengesellschaft | Wear-resistant surface armoring for the rollers of roller machines, particularly high-pressure roller presses |
| EP0476496A1 (en) * | 1990-09-20 | 1992-03-25 | Magotteaux International | Process for fabrication of a bimetallic casting and a wear resisting part according to said process |
| BE1004573A4 (en) * | 1990-09-20 | 1992-12-15 | Magotteaux Int | Process for producing a piece bimetallic foundry and wear piece made thereby. |
| DE4210395A1 (en) * | 1992-03-30 | 1993-10-07 | Krupp Polysius Ag | Roller mill |
| EP0646052A4 (en) * | 1992-06-19 | 1997-06-11 | Commw Scient Ind Res Org | Rolls for metal shaping. |
| US6171222B1 (en) | 1992-06-19 | 2001-01-09 | Commonwealth Scientific Industrial Research Organisation | Rolls for metal shaping |
| DE4232045A1 (en) * | 1992-09-24 | 1994-03-31 | Krupp Polysius Ag | Brittle-material crusher with contra-rotating tools - has tool length less than dia. and gap between them less than thickness of crushed material in scab form |
| DE102004025175A1 (en) * | 2004-05-21 | 2005-12-22 | Kerr-Mcgee Pigments Gmbh | High pressure grinding roll |
| WO2005113185A1 (en) * | 2004-05-21 | 2005-12-01 | Tronox Pigments International Gmbh | Particle bed roller mill |
| DE102004025175B4 (en) * | 2004-05-21 | 2006-07-06 | Kerr-Mcgee Pigments Gmbh | High pressure grinding roll |
| CN100586632C (en) * | 2004-05-21 | 2010-02-03 | 特诺颜料有限公司 | Granular bed roller mill |
| WO2007096215A1 (en) * | 2006-02-20 | 2007-08-30 | Siemens Aktiengesellschaft | Grinding tool with a coating |
| DE102006008115A1 (en) * | 2006-02-20 | 2007-08-30 | Siemens Ag | Milling tool e.g. rod mill, for milling of stone, has coating that is made of wear-resistant material and has ductile metallic base material with hard material particles, where base material is nickel or nickel alloy |
| AU2007217746B2 (en) * | 2006-02-20 | 2010-09-09 | Siemens Aktiengesellschaft | Grinding tool with a coating |
| DE102014000165A1 (en) * | 2014-01-07 | 2015-07-09 | Horst Diesing | Alloy and process for matrix intrinsic tribocharged manganese oxide coatings for increased service life of hot working tools from S (HSS) iron base alloys |
| DE102014000165B4 (en) * | 2014-01-07 | 2016-06-09 | Horst Diesing | Alloy for matrix intrinsic tribocharged manganese oxide coatings for extended service life of hot working tools made from S (HSS) iron based alloys |
| DE102014006427A1 (en) * | 2014-05-02 | 2015-11-05 | Khd Humboldt Wedag Gmbh | Roller with wear protection layer for a roller press |
| CN107185965A (en) * | 2017-06-19 | 2017-09-22 | 太仓市钧胜轧辊有限公司 | A kind of high abrasion roll |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8141 | Disposal/no request for examination |