EP0986653A1 - Gesintertes mechanisches teil mit abriebfester oberfläche und verfahren zu ihrer herstellung - Google Patents
Gesintertes mechanisches teil mit abriebfester oberfläche und verfahren zu ihrer herstellungInfo
- Publication number
- EP0986653A1 EP0986653A1 EP98922560A EP98922560A EP0986653A1 EP 0986653 A1 EP0986653 A1 EP 0986653A1 EP 98922560 A EP98922560 A EP 98922560A EP 98922560 A EP98922560 A EP 98922560A EP 0986653 A1 EP0986653 A1 EP 0986653A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- abrasion
- mechanical part
- laser
- laser beam
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000576 coating method Methods 0.000 claims abstract description 66
- 239000011248 coating agent Substances 0.000 claims abstract description 60
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000011195 cermet Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 32
- 238000005299 abrasion Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 18
- 238000004663 powder metallurgy Methods 0.000 claims description 14
- -1 16 Chemical class 0.000 claims description 13
- 238000000151 deposition Methods 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 150000001247 metal acetylides Chemical class 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 239000010937 tungsten Substances 0.000 claims description 8
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000010408 sweeping Methods 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000004927 fusion Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract 1
- 239000010953 base metal Substances 0.000 description 8
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 6
- 230000000977 initiatory effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005137 deposition process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- 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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
- C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
-
- 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
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/20—Refractory metals
-
- 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
- B22F2302/00—Metal Compound, non-Metallic compound or non-metal composition of the powder or its coating
- B22F2302/10—Carbide
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
Definitions
- the present invention relates to the anti-abrasion surface treatment by laser of a mechanical part. More particularly, the present invention relates to the surface treatment of a sintered mechanical part obtained by powder metallurgy by laser deposition of a cermet coating, the cermet being a composite material formed from ceramic products coated in a metal binder. The present invention also relates to a method of manufacturing such a mechanical part.
- An example of this type of coating is described by way of example in Canadian patent application No. 2,126,517.
- Laser deposition is a coating technique that deposits thick layers of very hard material on the surface of a metal part.
- a continuous CO 2 laser delivers an infrared beam whose energy is used to surface melt the base metal to be coated as well as the filler metal supplied in the form of a fine powder.
- a coaxial nozzle traversed in its center by a laser beam allows the arrival and injection of the powders forming the coating, the latter resembling a weld bead.
- this type of laser deposit has only been used to coat traditional non-f ⁇ ttées metal parts, used more particularly in very abrasive conditions.
- An object of the present invention is to provide a sintered mechanical part obtained by powder metallurgy and having a very high resistance to impact, abrasion and friction, as well as very good mechanical resistance of the body of the part.
- the present invention relates to a mechanical part with an abrasion-resistant surface, characterized in that it comprises: a sintered metal body obtained by powder metallurgy; and a cermet coating covering the metallic body and having an external surface constituting the abrasion-resistant surface, said coating having a certain thickness, a portion of which is metallurgically linked to the metallic body.
- metal body means that the coating is fused to the surface of the sintered part, the microstructure at the base of the coating being intimately united to the microstructure of the body of the part.
- the mechanical part can comprise any part traditionally used under very abrasive or high tension conditions, for example, the debarker pellets mounted on the debarker arms.
- the present invention also relates to a method for manufacturing the mechanical part described above. More particularly, the method is characterized in that it comprises the following steps: a) providing a sintered mechanical part obtained by powder metallurgy; and b) depositing by a laser process a cermet coating on an external surface of said mechanical part.
- the laser deposition process preferably includes the following steps:
- the powder mixture can be injected into the laser beam by means of a coaxial nozzle traversed in its center by the laser beam, the nozzle allowing the arrival of the powder mixture and its injection into the laser beam.
- the laser beam is preferably fixed and the mechanical part is installed on a movable table which can be moved relative to said laser beam.
- This coating according to the present invention being deposited by laser makes it possible to melt the sintered part to be coated on the surface under the effect of the laser beam.
- the surface of the sintered part to be covered is therefore fused over a thickness which can range from 10 ⁇ m to 1 mm, which allows the closure of the pores on the surface, typical of sintered parts and, consequently, the increase in its impact resistance.
- the small area covered at a given time by the laser allows the self-soaking of the exposed area, following the movement of the beam, by heat sink effect of the surrounding metal volume.
- the coating obtained according to the present invention also has a very low porosity due to the complete melting of the powders of the part sintered by the laser.
- Figure 1 is a perspective view of a debarking arm on which is mounted a sintered debarking disc having an abrasion-resistant coating according to a preferred embodiment of the present invention
- Figure 2 shows schematically in cross section a portion of the working surface of the debarking disc of Figure 1
- Figure 3 shows schematically and partly a laser recharging device for the implementation of the present invention
- Figure 4 is a scanning electron microscope photograph
- FIG. 5 is a photograph with a scanning electron microscope (SEM) showing the microstructure of the joint formed between a coating according to the present invention obtained by laser deposition on a base metal obtained by powder metallurgy.
- FIG. 1 shows a debarking arm (2) for a debarker with a rotating ring, on which arm is mounted a debarking disc (4) produced according to the present invention.
- This arm (2) comprises a first end (6) adapted to be fixed to the rotating ring of the debarker.
- the arm (2) comprises a second end (8) constituting the working surface of the arm (2) which is used to remove the bark from a tree as the latter moves longitudinally inside the ring .
- the patch (4) is operatively attached to this second end.
- This second end (8) is the part of the arm which is used to bark the trees and must be able to withstand very abrasive conditions.
- a debarking tablet according to the present invention can therefore advantageously be used, the latter having a very hard cermet coating which can withstand such working conditions.
- the debarker tablet (4) with an abrasion-resistant surface, or any other mechanical part according to the present invention comprises a sintered metal body (10) obtained by powder metallurgy and a coating (12) in cermet covering the metallic body (10).
- the external surface (14) of the coating constitutes the abrasion-resistant surface of the part.
- the coating (12) has a certain thickness, a portion of which is metallurgically linked to the metallic body (10), as can be seen in FIG. 5. This portion preferably has from 10 ⁇ m to 1 mm.
- the cermet coating (12) is preferably based on tungsten carbides (16), titanium carbides or boron carbides, of spheroidal shape in a metal matrix (18).
- the metal matrix (18) is preferably based on at least one of the metals chosen from the group consisting of nickel, chromium and cobalt, more particularly it comprises nickel, chromium and cobalt.
- Ni-9% Cr-Co is used.
- the coating (12) preferably comprises 65% by weight of tungsten carbides (16) and is substantially free of porosities.
- the coating (12) for sintered part according to the present invention is obtained by laser deposition.
- a coaxial nozzle (20) which is mounted at the outlet of a CO 2 laser beam (22) of 6 kW, injects into the laser beam (22) a constant flow of powders ( 24) of the material to be deposited.
- the laser beam (22) fuses the powders (24) and welds them to the base metal (4) in the form of a cord constituting the coating (12).
- the laser coating (12) is composed of tungsten carbide particles (16) of very high hardness in a chromium-nickel matrix (18) and it has excellent resistance to wear by abrasion and erosion, as well as very good resistance to corrosion.
- Figure 5 shows the microstructure of a coating (26) comprising carbides (28) obtained by plasma spraying while Figure 5 shows the microstructure of a laser coating (12) on a sintered part (4).
- the particles of tungsten carbide (16) found in the coating (12) by laser deposition are spheroidal, while the carbides (28) obtained by the coating (26) plasma projection tend rather to be angular in shape.
- the laser (22) being fixed, a table (30) with numerical control with four axes on which the parts (4) to be coated rest allows precise and uniform deposits to be produced by relative displacements of the parts (4) relative to the laser beam (22). Coatings with a thickness of less than 1 mm or more than 10 mm, by successive passages of the laser (22), can be produced.
- the materials used in the manufacture of coatings by laser deposition are generally mixtures of tungsten carbide powders, titanium carbide or boron carbide of high purity and very high hardness, alloyed, depending on the applications, with metallic powders with nickel, chrome or cobalt bases.
- the metal powders are fused by the laser (22) while the tungsten carbide powders remain solid, thus preserving their very high hardness.
- These cermet-type materials give coatings (12) excellent resistance to abrasion and erosion wear, as well as very good corrosion resistance.
- the coatings (12) produced by this technique have exceptional properties.
- the deposits made by laser are metallurgically linked to the base metal
- the coatings produced by hot spraying have a high porosity and a special preparation of the treated surfaces to ensure good adhesion.
- Very precise control of the supply of energy to the base metal makes it possible to obtain dilutions of the base metal in the deposit of less than 1% and to minimize or even eliminate any deformation.
- laser deposition makes it possible to produce fine metallurgical microstructures thanks to the rapidity of cooling during the treatment, thus making it possible to increase the hardness of the metal matrix (16) (2400 to 3600 HV).
- CNC programs and controllers leads to deposits that are perfectly reproducible over time and whose final thickness is perfectly controlled. Large series of parts can thus be processed.
- a mechanical part manufactured by powder metallurgy but not comprising a coating according to the present invention has the following physical and economic characteristics: - presence of a large number of pores on the surface; low impact resistance; generally less mechanical capacity than a forged part; lower density; noise absorption; - possibility of using liquid immiscible alloys; possibility of using self-hardening alloys; low production cost for a series of parts. These characteristics define the market penetration power of the production technique of parts by powder metallurgy but it also shows its limits.
- the porosity on the surface prevents the production of mechanical parts which must resist impact and / or abrasive wear due to the shortness of the crack initiation period compared to a forged or machined part. This is the reason why the mechanical parts obtained by powder metallurgy are traditionally not used in very abrasive or high tension conditions. It is here that the mechanical parts according to the present invention, more particularly the coating of toilets by laser deposition, come under a revolutionary concept for this sector of industry.
- the deposition by laser of a coating formed at 65% of spherical WC particles taken within a Ni-9% Cr-Co matrix allows the following improvements in the surface of the parts made by sintering metallic powders: the surface of the part is fused to a thickness ranging from 10 ⁇ m to 1 mm. This allows the closing of the pores on the surface of the part and, consequently, the increase in impact resistance; the small surface covered at a given time by the laser beam allows the self-soaking of the exposed area, following the displacement of the beam, by heat sink effect of the surrounding metallic volume; very low porosity of the coating, less than 1%, due to the complete melting of Ni-9% Cr powders by the laser.
- the coating obtained according to the present invention comprising spherical carbides, has the following advantages: very high impact resistance due to the lower propensity for crack initiation compared to a carbide with angular geometry; limitation of wear by friction because of the lower coefficient of friction of spherical carbides compared to carbides with angular geometry; and pure and simple limitation of the wear of the surface of the parts because of the hardness of the carbides.
- Ni-9% Cr matrix as described above, has an excellent toughness, superior to steel.
- a sintered part comprising a coating according to the present invention has the following advantages: excellent adhesion of the coating because of the metallurgical bond between the coating and the base metal; - unlike plasma spray deposition techniques, absence of porosity and cracks resulting in good impact resistance; thickness from 0.5 mm up to several millimeters (part reloading possible); and the carbide particles remain solid during the deposition process, thereby retaining their high hardness.
- the debarker pellets mounted on the debarker arms can advantageously be manufactured according to the present invention as well as each of the parts mentioned above.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Coating By Spraying Or Casting (AREA)
- Powder Metallurgy (AREA)
- Ceramic Products (AREA)
- Crushing And Grinding (AREA)
- Compositions Of Oxide Ceramics (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002207579A CA2207579A1 (fr) | 1997-05-28 | 1997-05-28 | Piece frittee a surface anti-abrasive et procede pour sa realisation |
CA2207579 | 1997-05-28 | ||
PCT/CA1998/000516 WO1998054379A1 (fr) | 1997-05-28 | 1998-05-27 | Piece mecanique frittee a surface antiabrasion et procede pour sa realisation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0986653A1 true EP0986653A1 (de) | 2000-03-22 |
EP0986653B1 EP0986653B1 (de) | 2001-12-05 |
Family
ID=4160871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98922560A Expired - Lifetime EP0986653B1 (de) | 1997-05-28 | 1998-05-27 | Gesintertes mechanisches teil mit abriebfester oberfläche und verfahren zu seiner herstellung |
Country Status (14)
Country | Link |
---|---|
US (1) | US6623876B1 (de) |
EP (1) | EP0986653B1 (de) |
JP (1) | JP4083817B2 (de) |
KR (1) | KR100540461B1 (de) |
CN (1) | CN1190517C (de) |
AT (1) | ATE210209T1 (de) |
AU (1) | AU733070B2 (de) |
BR (1) | BR9809467A (de) |
CA (1) | CA2207579A1 (de) |
DE (1) | DE69802800T2 (de) |
EA (1) | EA001332B1 (de) |
NO (1) | NO321415B1 (de) |
PL (1) | PL186654B1 (de) |
WO (1) | WO1998054379A1 (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020110649A1 (en) * | 2000-05-09 | 2002-08-15 | Skszek Timothy W. | Fabrication of alloy variant structures using direct metal deposition |
JP2003326196A (ja) * | 2002-05-13 | 2003-11-18 | Denso Corp | エジェクタ |
EP1396556A1 (de) * | 2002-09-06 | 2004-03-10 | ALSTOM (Switzerland) Ltd | Verfahren zum Regeln der Mikrostruktur einer mittels Laserschichten hergestellten Hartschicht |
JP5232942B2 (ja) * | 2007-01-02 | 2013-07-10 | デグテック エルティーディー | 切削工具の表面処理方法 |
US8505414B2 (en) * | 2008-06-23 | 2013-08-13 | Stanley Black & Decker, Inc. | Method of manufacturing a blade |
FR2933700B1 (fr) * | 2008-07-08 | 2010-07-30 | Sanofi Aventis | Derives de pyridino-pyridinones, leur preparation et leur application en therapeutique |
US20110229665A1 (en) * | 2008-10-01 | 2011-09-22 | Caterpillar Inc. | Thermal spray coating for track roller frame |
US8308096B2 (en) | 2009-07-14 | 2012-11-13 | TDY Industries, LLC | Reinforced roll and method of making same |
US20110200838A1 (en) * | 2010-02-18 | 2011-08-18 | Clover Industries, Inc. | Laser clad metal matrix composite compositions and methods |
CN102230173B (zh) * | 2010-06-22 | 2013-04-24 | 张宗海 | 平行双螺杆挤出机用全披覆熔覆性螺纹元件 |
US8389129B2 (en) | 2010-07-09 | 2013-03-05 | Climax Engineered Materials, Llc | Low-friction surface coatings and methods for producing same |
US8038760B1 (en) | 2010-07-09 | 2011-10-18 | Climax Engineered Materials, Llc | Molybdenum/molybdenum disulfide metal articles and methods for producing same |
US8769833B2 (en) | 2010-09-10 | 2014-07-08 | Stanley Black & Decker, Inc. | Utility knife blade |
KR101249049B1 (ko) * | 2010-12-28 | 2013-03-29 | 재단법인 포항산업과학연구원 | 레이저 용사 코팅 방법 및 이를 이용한 용사 코팅층 |
US8507090B2 (en) | 2011-04-27 | 2013-08-13 | Climax Engineered Materials, Llc | Spherical molybdenum disulfide powders, molybdenum disulfide coatings, and methods for producing same |
US10462963B2 (en) | 2012-03-06 | 2019-11-05 | Kondex Corporation | Laser clad cutting edge for agricultural cutting components |
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- 1998-05-27 EA EA199901088A patent/EA001332B1/ru not_active IP Right Cessation
- 1998-05-27 PL PL98336929A patent/PL186654B1/pl unknown
- 1998-05-27 KR KR1019997010927A patent/KR100540461B1/ko not_active IP Right Cessation
- 1998-05-27 CN CNB988055473A patent/CN1190517C/zh not_active Expired - Fee Related
- 1998-05-27 JP JP50003699A patent/JP4083817B2/ja not_active Expired - Fee Related
- 1998-05-27 BR BR9809467-0A patent/BR9809467A/pt not_active IP Right Cessation
- 1998-05-27 DE DE69802800T patent/DE69802800T2/de not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
EP0986653B1 (de) | 2001-12-05 |
EA199901088A1 (ru) | 2000-06-26 |
AU733070B2 (en) | 2001-05-03 |
JP4083817B2 (ja) | 2008-04-30 |
NO995828D0 (no) | 1999-11-26 |
AU7517598A (en) | 1998-12-30 |
CN1258323A (zh) | 2000-06-28 |
CN1190517C (zh) | 2005-02-23 |
PL186654B1 (pl) | 2004-02-27 |
NO995828L (no) | 1999-12-10 |
KR20010012957A (ko) | 2001-02-26 |
NO321415B1 (no) | 2006-05-08 |
US6623876B1 (en) | 2003-09-23 |
EA001332B1 (ru) | 2001-02-26 |
DE69802800D1 (de) | 2002-01-17 |
JP2002510361A (ja) | 2002-04-02 |
ATE210209T1 (de) | 2001-12-15 |
WO1998054379A1 (fr) | 1998-12-03 |
BR9809467A (pt) | 2000-06-20 |
CA2207579A1 (fr) | 1998-11-28 |
DE69802800T2 (de) | 2002-08-08 |
PL336929A1 (en) | 2000-07-17 |
KR100540461B1 (ko) | 2006-01-12 |
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