EP0948659B1 - Beschichtungspulver und verfahren zu seiner herstellung - Google Patents
Beschichtungspulver und verfahren zu seiner herstellung Download PDFInfo
- Publication number
- EP0948659B1 EP0948659B1 EP97912020A EP97912020A EP0948659B1 EP 0948659 B1 EP0948659 B1 EP 0948659B1 EP 97912020 A EP97912020 A EP 97912020A EP 97912020 A EP97912020 A EP 97912020A EP 0948659 B1 EP0948659 B1 EP 0948659B1
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- EP
- European Patent Office
- Prior art keywords
- coating powder
- hard material
- powder according
- hard
- phase
- 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.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/04—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbonitrides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2207/00—Aspects of the compositions, gradients
- B22F2207/01—Composition gradients
- B22F2207/07—Particles with core-rim gradient
Definitions
- the invention relates to a coating powder for use in various Coating technologies, such as the different variants of the thermal spraying, such as plasma spraying, High speed flame spraying (HVOF) and detonation spraying, as well as others Processes such as coating by laser or powder plasma deposition welding.
- the coating powder according to the invention can be applied by means of these methods various highly stressed components are applied, which the various stresses, such as abrasive and erosive Wear, corrosion and high temperatures or various Combinations of these stresses are exposed, and in the different areas of technology find their application.
- Application examples are coated components in vehicle construction, in mechanical engineering, in chemical and petrochemical plants, and many other industries.
- Various hard metal-like coating powders are widely used in technology. These are characterized in that a carbide hard material such as WC or Cr 3 C 2 is embedded in a ductile binder matrix.
- the most important systems for coatings are WC-Co and Cr 3 C 2 -NiCr.
- WC-Co has a very high wear resistance. Use at elevated temperatures (up to a maximum of 450 ° C). and simultaneous chemical exposure is limited. Attempts have been made to improve the corrosion resistance in particular by using other binders such as Ni and alloy with chromium, which is only possible to a limited extent due to the low alloyability of the system.
- Cr 3 C 2 -NiCr can be used well at higher temperatures (up to 750-800 ° C) and corrosive loads. However, the wear resistance of the system is lower than that of WC-Co.
- DD 224 057 describes a coating powder based on TiC which, in addition to at least one of the metals Ni, Co, Cr, W and B and / or Si, also contains Mo or Mo 2 C and free carbon. Individual components, such as Mo 2 C, can be bound to the TiC. Because there is no composite powder with a hard metal-like microstructure and the individual powder components are very coarse, no highly wear-resistant layers can be produced.
- DE 41 34 144 describes a carbide wettable powder, which is coated with active carbon is supposed to protect the core from signs of oxidation, described.
- the wettable powders to be coated are there in a matrix of metals the group iron, nickel and cobalt also mentions titanium carbide and titanium carbonitride.
- WO 87/04732 describes a method for producing a wear-resistant one Layer, made of a powdered material of 10-50 mass% TiC and a Fe- and / or contains Ni alloy or a Co alloy. The proportion of the hard material phase is too low for these compositions to wear resistance to increase significantly.
- EP 0 425 464 describes a roll for paper manufacture, which has several Layers is provided.
- the top layer is a hard metal-like layer, the hard material phase of tungsten, chromium, titanium, niobium or boron carbides or of a mixture of these, and their metallic binder phase Ni, Co or Fe or their alloys with transition metals of IV. to VI.
- Sub-group of the PSE can be alloyed.
- the hard phase content can be up to 96%.
- M.Yu. Zashlyapin et al. (Sashchitnye pokrytiya na metallakh, volume 20, 1986, p. 52-55) describe coating powder with TiCN as hard material phase and binders from 75% mass% Ni and 25% mass% Mo, which in the composite powder with 35-65 % By mass are included. This corresponds to 65-78 vol .-% hard phase in Coating powder.
- the sintered wettable powders made of TiCN and a solid solution of TiCN and Mo in the Nickel matrix Through the use of Mo as a starting material and with it associated low non-metal content, this powder is susceptible to oxidation and substrates coated with it show poor wear behavior.
- the layers produced from these coating powders are better than those which were produced from TiC-containing coating powders from the prior art, but have not yet been improved so significantly (e.g. in abrasive wear) that these layers are sufficiently superior and competitive compared to other hard metal systems .
- Coating powder should accordingly be achieved by conventional Coating technologies carbide-like, extremely resistant layers can be generated on highly stressed components compared to known technical solutions improved combinations of properties such as high Wear resistance at high temperature, high wear resistance with simultaneous high corrosive load, low friction coefficient at high temperature, have and easily by varying the composition to different Stress profiles can be adjusted.
- these tasks relate to the coating powder according to one or more of claims 1 to 18 and relating to the method for the production of this powder according to one or more of claims 19 to 21 solved.
- the coating powder according to the invention is characterized in that it has a hard metal-like microstructure.
- Two cubic hard material phases which have a karn-shell structure and form a hard material grain, are embedded in a metallic binder matrix composed of at least one or more of the elements Ni, Co and Fe.
- Said core-shell structure is formed by metallurgical reactions, dissolution and re-elimination processes during the sintering process in the production of coating powder.
- the task of the hard material phase in the shell is, in particular, to improve the poor wetting of the pure hard material TiC with the usual binding metals Ni, Co and Fe or their alloys.
- the metals Mo and W which are added in particular in the form of their carbides Mo 2 C or WC as starting powder in the production of coating powder, have proven to be particularly suitable.
- these carbides preferentially dissolve in the binder compared to TiC and separate in the cooling phase of the sintering process as mixed carbides (Ti, Mo) C 1-x or (Ti, W) C 1-x as a shell around undissolved TiC grains from.
- Nitrogen is advantageously added as a further alloy element.
- This can be achieved by using the titanium carbide, which is the starting material for Coating powder production is used, in whole or in part Titanium carbonitride replaced.
- titanium carbide which is the starting material for Coating powder production is used, in whole or in part Titanium carbonitride replaced.
- From the developments for cutting materials it is known that by increasing the nitrogen content in particular the Mo and / or W content in the binder phase (P. Etmayer et al., Int. J. Refractory Metals & Hard Materials, 1995, No. 6, vol. 13, p.343-351).
- the well known fact that made of carbonitrides at elevated temperatures, as is the case with thermal spraying occur, nitrogen is released is due to the application of nitrogen in commercial carbide-like coating powders have so far been dispensed with.
- microstructural according to the invention Formation of the coating powder in the hard phases before nitrogen losses Spraying process are protected.
- the use of nitrogen-containing coating powders is particularly advantageous if these layers are used to produce one must have a low coefficient of friction.
- the elements Zr, Hf, V, Nb, Ta and Cr are also further alloy elements according to the invention. these can can be used both alone and together with nitrogen. Alloy elements such as Al, B and others are also special Use cases advantageous.
- metallic alloy elements in the form of carbides are introduced during the production of the coating powder.
- Cr 3 C 2 , Cr 7 C 3 , Cr 23 C 6 , WC, W 2 C and Mo 2 C can, for example, still be detectable by X-ray phase analysis after the sintering process.
- the orthorhombic Cr 3 C 2 is detected, for example, after sintering from a certain amount by X-ray phase analysis.
- the carbide hard materials Cr 3 C 2 , Cr 7 C 3 , Cr 23 C 6 , WC, W 2 C and Mo 2 C oxidize in such a way that a free carbide of the metal is released when free carbon is released - if this is stable - and then the metal itself is formed (RFVoitovich, Okislenie karbidov i nitridov, Kiev, Naukova dumka, 1981).
- This forming metal is able to further alloy the metallic binder.
- This also has the effect that the alloy state of the binder is positively influenced and the oxygen content in the layer is reduced.
- the chromium formed by oxidation of the Cr 3 C 2 significantly increases the corrosion resistance of the binder. It is also important that all carbidic and carbonitridic starting materials used for coating powder production have a low oxygen content.
- Such a distribution of the alloy elements is also within the meaning of the present invention.
- Ti (C, N) As a starting material.
- nitrogen accumulation occurs in the core of the hard material particles, while the nitrogen content is lower in the envelopes, but an accumulation of Mo or W can be observed (P. Etmayer, H. Kolaska, Metall, 1989, volume 43 , Issue 8, pp.742-749).
- this means that the content of titanium and carbon in the cores of the hard materials is> 60 atom%, and at the same time the content of titanium, the second metal and carbon is> 50 atom% in the shells.
- these values are well above the specified limit values.
- Several shell phases can also be detectable in special alloy variants.
- the volume ratio between the hard material phases and the Binder phase in the coating powder according to the invention varied within wide limits sufficient wear resistance of the layers is only achieved if the volume fraction of hard materials, based on the raw materials before Sintering,> 60 vol .-%.
- both individual hard materials such as TiC, TiN, Ti (C, N), Mo 2 C, WC, and Cr 3 C 2
- complex hard materials such as (Ti, Mo) C and (W, Ti) C
- single hard materials are preferably used.
- the carbon content of the titanium-containing hard materials is in the range from 4 to 21% by mass, the nitrogen content is a maximum of 17% by mass.
- TiC or Ti (C, N) this corresponds to all compositions of the solid mixed crystals from TiC to approximately TiC 0.3 N 0.7 . In the corresponding ratio, TiC and TiN can also be used as starting materials.
- the volume fraction of these titanium-containing hard materials is 50-95% by volume, preferably 60-85% by volume. If a third hard material phase is used, its proportion is at most 35% by volume, preferably at most 25% by volume. The proportion of the second hard material phase responsible for the formation of the core-shell structure results from the respective differences.
- the alloying elements such as W, Mo, Cr, are preferably used as Carbides are added and can accumulate during the sintering process Coating powder production both in the cubic hard material phases and partially dissolve in the binder phase.
- the core-shell structure of the cubic that characterizes the coating powder Hard material phases are transferred to the layer and can be detected in it.
- Another advantage of the coating powder according to the invention is that it with the most diverse process variants of thermal spraying almost equally well can be processed.
- the coating powder according to the invention can be different Coating powder manufacturing technologies as the main technological Step include a sintering process, such as Sintering and breaking.
- a sintering process such as Sintering and breaking.
- Coating powder particles of irregular morphology For the Processing coating powders has been shown to be spherical Morphology, which increases the flowability of the powder, has a particularly favorable effect. Therefore, the preferred technology for producing the invention Spray powder used the agglomeration and sintering.
- a spray drying process for agglomeration advantageously used a spray drying process.
- the spray drying parameters should be selected so that granules with a high green density are produced, which are compacted by a simple sintering process, in which the core-shell structure which can form hard material phases in the binder matrix.
- the height The green density of the spray drying granules is still important for the fact that the Sintering together individual granules is kept to a minimum. Through the Sintering leads to a change in the phase composition in the coating powders through the metallurgical reactions, solution and Processes of re-excretion, changes in the elementary Compositions are insignificant.
- the size of the hard material particles with core-shell structure in the sintered coating powder is ⁇ 10 ⁇ m, but preferably ⁇ 5 ⁇ m. After sintering, the coating powder is slightly sintered together prepared by a gentle grinding process and then according to the Requirements for its application in one of the above Coating technologies fractionated.
- the grain size of the coating powder according to the invention must Requirements of the respective coating technology can be adapted, it can therefore lie in a wide range of 10-250 ⁇ m.
- Binder are premixed dry, dispersed in water and then mixed intimately in a roller chair in stainless steel containers with hard metal balls.
- the suspension is mixed with 1.5% by mass of an adapted binder made of polyvinyl alcohol and polyethylene glycol and then granules are produced in a spherical shape by spray drying.
- the binder is driven out together with the sintering in a one-stage tempering.
- Debinding and tempering are carried out in flat graphite crucibles under argon at a heating rate of 5 K / min to 600 ° C and 10 K / min up to the sintering temperature at 1320 ° C, which is followed by an isothermal holding time of 30 min.
- Figure 1 shows the metallographic cross section of a coating powder particle with a magnification of 3000 times. The grain-shell structure of the hard material particles can be clearly seen.
- the sintered powders are subjected to gentle grinding and then fractionated according to the requirements for use in the various coating technologies.
- the preferred grain size for use in high-speed flame spraying or detonation spraying is 20-45 ⁇ m.
- the d10 of this powder was 20 ⁇ m, the d90 42 ⁇ m.
- the spraying conditions optimized for this material were used.
- the spray distance was 120 mm with a detonation rate of 6.6 detonations / s.
- An acetylene / oxygen mixture in a volume ratio of 1.0 was used.
- the coating powder was fractionated; a particle size range of 20-45 ⁇ m was also used for spray tests.
- the morphology of this wettable powder according to the invention is shown in Figure 4.
- the coating powder was also processed under spray conditions analogous to embodiment 1 using the "Perun P" detonation spray system (Paton Institute, Ukraine) to give layers with a layer thickness of approximately 250 ⁇ m on steel substrates which are suitable for the abrasion test.
- the mass loss after 5904 m wear path was 68 mg, when converted to the volume loss 10.6 mm 3 .
- the coating powder was also processed under spray conditions analogous to embodiment 1 using the "Perun P" detonation spray system (Paton Institute, Ukraine) to give layers with a layer thickness of approximately 250 ⁇ m on steel substrates which are suitable for the abrasion test.
- the mass loss after 5904 m wear path was 58 mg, when converted to the volume loss 8.9 mm 3 .
- the coating powder was also processed under spray conditions analogous to embodiment 1 using the "Perun P" detonation spray system (Paton Institute, Ukraine) to give layers with a layer thickness of approximately 250 ⁇ m on steel substrates which are suitable for the abrasion test.
- the mass loss after 5904 m wear path was 80 mg, when converted to the volume loss 12.1 mm 3 .
- a coating powder from embodiment 1 was likewise applied to a steel substrate suitable for the abrasion test using a PT A-3000S plasma spraying system with an F4 burner in the atmosphere.
- An Ar / H 2 plasma (best results at 45 l / min Ar and 14 l / min H2) with a plasma output of 38 kW was used for this.
- the mass loss after 5904 m wear path was 100 mg, when converted to the volume loss 16.4 mm 3 .
- a coating powder from embodiment 1 by high-speed flame spraying with a PT CDS spraying system with a gas mixture of hydrogen (600 l / min) and oxygen (300 l / min) at a spraying distance of 200 mm was also applied to steel substrates suitable for the abrasion test.
- the mass loss after 5904 m wear path was 94 mg, when converted to the volume loss 15.4 mm 3 .
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Description
Claims (21)
- Beschichtungspulver mit einer hartmetallähnlichen Mikrostruktur, bestehend aus zwei kubischen Hartstoffphasen, die jeweils eine Kern-Hülle-Struktur eines Hartstoffteilchens darstellen, wobei die Hartstoffphase im Kern zu einem überwiegendem Teil Ti und C und die Hartstoffphase in der Hülle zu einem überwiegendem Teil Ti, ein zweites, aber von Ni, Co und Fe verschiedenes Metall und C enthält, und diese in einer Binderphase aus mindestens einem oder mehreren der Elemente Ni, Co und Fe eingebettet sind, dadurch gekennzeichnet, daß entweder in den Hartstoffphäsen oder in der Binderphase oder in beiden gleichzeitig wenigstens ein weiteres Legierungselement vorhanden ist, und daß in der metallischen Binderphase wenigstens eine dritte carbidische Hartstoffphase eingebettet sein kann, die sich während des Spritzprozesses unter sauerstoffhaltiger Atmosphäre unter Kohlenstoffverlust zersetzt und deren metallische Komponente die anderen Hartstoffphasen und /oder die Binderphase legiert oder durch die schnelle Abkühlung als Carbid im Binder gelöst verbleibt.
- Beschichtungspulver nach Anspruch 1, dadurch gekennzeichnet, daß die kubische Hartstoffphase in der Hülle als zweites Metall Mo oder W enthält.
- Beschichtungspulver nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die weiteren Legierungelemente N und/oder wenigstens eins der Elemente Zr, Hf, V, Nb, Ta und Cr sind.
- Beschichtungspulver nach einem oder mehreren der Ansprüche von 1 bis 3, dadurch gekennzeichnet, daß die metallische Binderphase zusätzlich durch W und / oder Mo legiert ist, eins oder beide Elemente aber gleichzeitig in der die Hülle bildenden kubischen Hartstoffphase enthalten sind.
- Beschichtungspulver nach einem oder mehreren der Ansprüchen von 1 bis 4, dadurch gekennzeichnet, daß die dritte oder jede weitere carbidische Phase ein kubisches oder anderes Kristallgitter aufweist.
- Beschichtungspulver nach den Ansprüchen 1 oder 5, dadurch gekennzeichnet, daß es sich bei den carbidischen Phasen um Cr3 C2, Cr7C3, Cr23C6, WC, W2C und Mo2C handelt.
- Beschichtungspulver nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Volumentanteil der Hartstoffe, bezogen auf die Ausgangsstoffe vor der Sinterung > 60 Vol.-% beträgt.
- Beschichtungspulver nach Anspruch 7, dadurch gekennzeichnet, daß der Volumenanteil der Hartstoffe, bezogen auf die Ausgangsstoffe vor der Sinterung, im Bereich
70 bis 95 Vol.-% beträgt. - Beschichtungspulver nach Anspruch 8, dadurch gekennzeichnet, daß der Volumenanteil der Hartstoffe, bezogen auf die Ausgangsstoffe vor der Sinterung im Bereich
80 bis 95 Vol.-% beträgt. - Beschichtungspulver nach einem oder mehreren der Ansprüche von 1 bis 9, dadurch gekennzeichnet, daß der Kohlenstoffgehalt der titanhaltigen Hartstoffmasse 4 - 22 Masse-% und der Stickstoffgehalt der titanhaltigen Hartstoffe maximal 17 Masse-% bei Einsatz der Einzelhartstoffe TiC, TiN oder Ti(C, N) bezogen auf die Ausgangsstoffe vor der Sinterung betragen.
- Beschichtungspulver nach einem oder mehreren der Ansprüche von 7 bis 10, dadurch gekennzeichnet, daß der Volumenanteil der titanhaltigen Hartstoffe bei Einsatz der Einzelhartstoffe TiC, TiN oder Ti(C, N), bezogen auf die Ausgangsstoffe vor der Sinterung und auf den Gesamthartstoffanteil 50 - 95 Vol.-% beträgt.
- Beschichtungspulver nach Anspruch 11, dadurch gekennzeichnet, daß der Volumenanteil der titanhaltigen Hartstoffe bei Einsatz der Einzelhartstoffe TiC, TiN oder Ti(C, N), bezogen auf die Ausgangstoffe vor der Sinterung und auf den Gesamthartstoffanteil 60 - 90 Vol.-% beträgt.
- Beschichtungspulver nach einem oder mehreren der Ansprüche von 1 bis 12, dadurch gekennzeichnet, daß der Volumenanteil der dritten carbidischen Hartstoffphase, bezogen auf die Ausgangsstoffe vor der Sinterung und auf den Gesamthartstoffanteil maximal 35 Vol.-% beträgt.
- Beschichtungspulver nach Anspruch 13, dadurch gekennzeichnet, daß der Volumenanteil der dritten carbidischen Hartstoffphase bezogen auf die Ausgangsstoffe vor der Sinterung und auf den Gesamthartstoffanteil maximal 25 Vol.-% beträgt.
- Beschichtungspulver nach einem oder mehreren der Ansprüche von 1 bis 14, dadurch gekennzeichnet, daß die Korngröße der gesinterten Teilchen im Bereich 10 - 250 µm liegt.
- Bechichtungspulver nach Anspruch 15, dadurch gekennzeichnet, daß die Korngröße der gesinterten Teilchen im Bereich 20 - 90 µm liegt.
- Beschichtungspulver nach Anspruch 16, dadurch gekennzeichnet, daß die Korngröße der gesinterten Teilchen im Bereich 10 - 45 µm liegt.
- Beschichtungsplver nach Anspruch 15, 16 oder 17, dadurch gekennzeichnet, daß die gesinterten Teilchen eine kugelige Morphologie aufweisen.
- Verfahren zur Herstellung der Beschichtungspulver nach einem oder mehreren der Ansprüche von 1 bis 18, dadurch gekennzeichnet, daß die Einzelhartstoffe und die Metallpulver in einer wäßrigen Suspension durch Mischmahlen in einer Kugelmühle gemischt und homogenisiert, anschließend granuliert, gesintert und mahltechnisch aufbereitet werden.
- Verfahren zur Herstellung der Beschichtungspulver nach Anspruch 19, dadurch gekennzeichnet, daß die Granulierung durch Sprühtrockunung erfolgt.
- Verfahren zur Herstellung der Beschichtungspulver nach Anspruch 19 oder 20, dadurch gekennzeichnet, daß die Sinterung in Abhängigkeit von der Legierungszusammensetzung bei Temperaturen erfolgt, bei denen ausreichend flüssige Phase gebildet wird, die die metallurgischen Reaktionen, Lösungs- und Wiederausscheidungsvorgänge ermöglicht, die zur Herausbildung der Kern-Hülle-Struktur der kubischen Hartstoffphasen notwendig sind.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19640788 | 1996-10-02 | ||
| DE19640788A DE19640788C1 (de) | 1996-10-02 | 1996-10-02 | Beschichtungspulver und Verfahren zu seiner Herstellung |
| PCT/DE1997/002207 WO1998014630A1 (de) | 1996-10-02 | 1997-09-25 | Beschichtungspulver und verfahren zu seiner herstellung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0948659A1 EP0948659A1 (de) | 1999-10-13 |
| EP0948659B1 true EP0948659B1 (de) | 2001-12-05 |
Family
ID=7807760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97912020A Expired - Lifetime EP0948659B1 (de) | 1996-10-02 | 1997-09-25 | Beschichtungspulver und verfahren zu seiner herstellung |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6162276A (de) |
| EP (1) | EP0948659B1 (de) |
| JP (1) | JP4282767B2 (de) |
| AT (1) | ATE210205T1 (de) |
| BR (1) | BR9711858A (de) |
| CA (1) | CA2267960C (de) |
| DE (1) | DE19640788C1 (de) |
| NO (1) | NO321957B1 (de) |
| WO (1) | WO1998014630A1 (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050014010A1 (en) * | 2003-04-22 | 2005-01-20 | Dumm Timothy Francis | Method to provide wear-resistant coating and related coated articles |
| US6863990B2 (en) * | 2003-05-02 | 2005-03-08 | Deloro Stellite Holdings Corporation | Wear-resistant, corrosion-resistant Ni-Cr-Mo thermal spray powder and method |
| US7175686B2 (en) * | 2003-05-20 | 2007-02-13 | Exxonmobil Research And Engineering Company | Erosion-corrosion resistant nitride cermets |
| US7074253B2 (en) * | 2003-05-20 | 2006-07-11 | Exxonmobil Research And Engineering Company | Advanced erosion resistant carbide cermets with superior high temperature corrosion resistance |
| US7247186B1 (en) * | 2003-05-20 | 2007-07-24 | Exxonmobil Research And Engineering Company | Advanced erosion resistant carbonitride cermets |
| ATE419293T1 (de) * | 2005-07-11 | 2009-01-15 | Akzo Nobel Coatings Int Bv | Pulverbeschichtungsmaterialien |
| EP1910476A1 (de) * | 2005-07-11 | 2008-04-16 | Akzo Nobel Coatings International BV | Verfahren zur herstellung einer pulverbeschichtungszusammensetzung |
| US20070099014A1 (en) * | 2005-11-03 | 2007-05-03 | Sulzer Metco (Us), Inc. | Method for applying a low coefficient of friction coating |
| DE102007004937B4 (de) * | 2007-01-26 | 2008-10-23 | H.C. Starck Gmbh | Metallformulierungen |
| BRPI1101402A2 (pt) * | 2011-03-29 | 2013-06-04 | Mahle Metal Leve Sa | elemento deslizante |
| US20130260172A1 (en) * | 2012-04-02 | 2013-10-03 | Kennametal Inc. | Coated titanium alloy surfaces |
| JP2017013047A (ja) * | 2015-07-01 | 2017-01-19 | 株式会社神戸製鋼所 | 被覆粒子 |
| CN106001550B (zh) * | 2016-06-03 | 2018-10-19 | 广东工业大学 | 一种以TiC-Ni-Mo2C合金为耐磨相的耐磨金属陶瓷及其制备方法与应用 |
| CN106216663A (zh) * | 2016-09-18 | 2016-12-14 | 广东工业大学 | 一种金属陶瓷颗粒及其制备方法应用 |
| CN106216662A (zh) * | 2016-09-18 | 2016-12-14 | 广东工业大学 | 一种金属陶瓷颗粒及其制备方法与应用 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859057A (en) * | 1970-03-16 | 1975-01-07 | Kennametal Inc | Hardfacing material and deposits containing tungsten titanium carbide solid solution |
| JPS5425232A (en) * | 1977-07-28 | 1979-02-26 | Riken Piston Ring Ind Co Ltd | Sliding parts having wearrresistant jet coated layer |
| DD224057A1 (de) * | 1984-05-14 | 1985-06-26 | Immelborn Hartmetallwerk | Beschichtungspulver auf der basis von titancarbid |
| CH670103A5 (de) * | 1986-02-04 | 1989-05-12 | Castolin Sa | |
| FI86566C (fi) * | 1989-10-27 | 1992-09-10 | Valmet Paper Machinery Inc | Vals foer anvaendning vid pappersframstaellning och foerfarande foer framstaellning av valsen. |
| DE4134144C2 (de) * | 1991-10-16 | 1994-04-21 | Fraunhofer Ges Forschung | Karbidisches Spritzpulver |
-
1996
- 1996-10-02 DE DE19640788A patent/DE19640788C1/de not_active Expired - Fee Related
-
1997
- 1997-09-25 JP JP51613398A patent/JP4282767B2/ja not_active Expired - Fee Related
- 1997-09-25 US US09/269,819 patent/US6162276A/en not_active Expired - Lifetime
- 1997-09-25 BR BR9711858A patent/BR9711858A/pt not_active IP Right Cessation
- 1997-09-25 AT AT97912020T patent/ATE210205T1/de active
- 1997-09-25 CA CA002267960A patent/CA2267960C/en not_active Expired - Fee Related
- 1997-09-25 WO PCT/DE1997/002207 patent/WO1998014630A1/de not_active Ceased
- 1997-09-25 EP EP97912020A patent/EP0948659B1/de not_active Expired - Lifetime
-
1999
- 1999-03-30 NO NO19991572A patent/NO321957B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998014630A1 (de) | 1998-04-09 |
| NO321957B1 (no) | 2006-07-31 |
| NO991572L (no) | 1999-03-30 |
| DE19640788C1 (de) | 1997-11-20 |
| BR9711858A (pt) | 1999-08-24 |
| CA2267960A1 (en) | 1998-04-09 |
| EP0948659A1 (de) | 1999-10-13 |
| US6162276A (en) | 2000-12-19 |
| JP2001503105A (ja) | 2001-03-06 |
| CA2267960C (en) | 2003-07-08 |
| ATE210205T1 (de) | 2001-12-15 |
| JP4282767B2 (ja) | 2009-06-24 |
| NO991572D0 (no) | 1999-03-30 |
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