DE3776197D1 - Carbid-metall-verbundstoff mit bindemetallgradient und verfahren zu seiner herstellung. - Google Patents
Carbid-metall-verbundstoff mit bindemetallgradient und verfahren zu seiner herstellung.Info
- Publication number
- DE3776197D1 DE3776197D1 DE8787850144T DE3776197T DE3776197D1 DE 3776197 D1 DE3776197 D1 DE 3776197D1 DE 8787850144 T DE8787850144 T DE 8787850144T DE 3776197 T DE3776197 T DE 3776197T DE 3776197 D1 DE3776197 D1 DE 3776197D1
- Authority
- DE
- Germany
- Prior art keywords
- production
- gradient
- metal
- carbide
- binding
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000002184 metal Substances 0.000 title 1
- 239000002905 metal composite material Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000011230 binding agent Substances 0.000 abstract 2
- 238000005553 drilling Methods 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
Classifications
-
- 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
- C22C29/08—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 based on tungsten carbide
-
- 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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
- Ceramic Products (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Peptides Or Proteins (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Drilling Tools (AREA)
- Earth Drilling (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8602146A SE456428B (sv) | 1986-05-12 | 1986-05-12 | Hardmetallkropp for bergborrning med bindefasgradient och sett att framstella densamma |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3776197D1 true DE3776197D1 (de) | 1992-03-05 |
Family
ID=20364493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787850144T Expired - Lifetime DE3776197D1 (de) | 1986-05-12 | 1987-04-29 | Carbid-metall-verbundstoff mit bindemetallgradient und verfahren zu seiner herstellung. |
Country Status (12)
Country | Link |
---|---|
US (1) | US4820482A (de) |
EP (1) | EP0247985B1 (de) |
JP (1) | JPS6324032A (de) |
AT (1) | ATE71984T1 (de) |
BR (1) | BR8702375A (de) |
CA (1) | CA1285777C (de) |
DE (1) | DE3776197D1 (de) |
FI (1) | FI88054C (de) |
IE (1) | IE59930B1 (de) |
IN (1) | IN169351B (de) |
SE (1) | SE456428B (de) |
ZA (1) | ZA873144B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109434115A (zh) * | 2018-11-13 | 2019-03-08 | 歌尔股份有限公司 | 一种多层梯度硬质合金冲头 |
Families Citing this family (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02221353A (ja) * | 1989-02-21 | 1990-09-04 | Sumitomo Electric Ind Ltd | 耐摩工具用超硬合金及びその製造法 |
US5074623A (en) * | 1989-04-24 | 1991-12-24 | Sandvik Ab | Tool for cutting solid material |
SE463574B (sv) * | 1989-04-24 | 1990-12-10 | Sandvik Ab | Verktyg samt skaer av haardmetall foer skaerande bearbetning av fasta material |
US5061661A (en) * | 1989-04-26 | 1991-10-29 | Gte Products Corporation | Method for producing tungsten carbide and cemented tungsten carbide article therefrom having a uniform microstructure |
US5651808A (en) * | 1989-11-09 | 1997-07-29 | Rutgers, The State University Of New Jersey | Carbothermic reaction process for making nanophase WC-Co powders |
DE69025582T3 (de) * | 1989-12-27 | 2001-05-31 | Sumitomo Electric Industries, Ltd. | Beschichteter Hartmetallkörper und Verfahren zu seiner Herstellung |
US5154245A (en) * | 1990-04-19 | 1992-10-13 | Sandvik Ab | Diamond rock tools for percussive and rotary crushing rock drilling |
SE9002135D0 (sv) * | 1990-06-15 | 1990-06-15 | Sandvik Ab | Improved tools for percussive and rotary crusching rock drilling provided with a diamond layer |
SE9002137D0 (sv) * | 1990-06-15 | 1990-06-15 | Diamant Boart Stratabit Sa | Improved tools for cutting rock drilling |
SE9002136D0 (sv) * | 1990-06-15 | 1990-06-15 | Sandvik Ab | Cement carbide body for rock drilling, mineral cutting and highway engineering |
SE9003251D0 (sv) * | 1990-10-11 | 1990-10-11 | Diamant Boart Stratabit Sa | Improved tools for rock drilling, metal cutting and wear part applications |
JP2985300B2 (ja) * | 1990-12-25 | 1999-11-29 | 三菱マテリアル株式会社 | 硬質層被覆サーメット |
SE500049C2 (sv) * | 1991-02-05 | 1994-03-28 | Sandvik Ab | Hårdmetallkropp med ökad seghet för mineralavverkning samt sätt att framställa denna |
SE500050C2 (sv) * | 1991-02-18 | 1994-03-28 | Sandvik Ab | Hårdmetallkropp för slitande mineralavverkning och sätt att framställa denna |
AU651210B2 (en) * | 1991-06-04 | 1994-07-14 | De Beers Industrial Diamond Division (Proprietary) Limited | Composite diamond abrasive compact |
SE505461C2 (sv) * | 1991-11-13 | 1997-09-01 | Sandvik Ab | Hårdmetallkropp med ökad slitstyrka |
SE469822B (sv) * | 1992-02-07 | 1993-09-27 | Sandvik Ab | Hårdmetallvals för valsning av metallband och trådplattning |
EP0556788B1 (de) * | 1992-02-20 | 1997-05-14 | Mitsubishi Materials Corporation | Hartmetallegierung |
US5417475A (en) * | 1992-08-19 | 1995-05-23 | Sandvik Ab | Tool comprised of a holder body and a hard insert and method of using same |
US5494635A (en) * | 1993-05-20 | 1996-02-27 | Valenite Inc. | Stratified enriched zones formed by the gas phase carburization and the slow cooling of cemented carbide substrates, and methods of manufacture |
SE503038C2 (sv) * | 1993-07-09 | 1996-03-11 | Sandvik Ab | Diamantbelagt skärande verktyg av hårdmetall eller keramik |
WO1995012009A1 (de) * | 1993-10-29 | 1995-05-04 | Balzers Aktiengesellschaft | Beschichteter körper, verfahren zu dessen herstellung sowie dessen verwendung |
US5837071A (en) * | 1993-11-03 | 1998-11-17 | Sandvik Ab | Diamond coated cutting tool insert and method of making same |
DE4440542C2 (de) * | 1994-11-12 | 1996-09-05 | Fraunhofer Ges Forschung | Verfahren zur Herstellung von Hartmetallformkörpern mit einem definierten Gradienten der Bindemetallphase |
US5762843A (en) * | 1994-12-23 | 1998-06-09 | Kennametal Inc. | Method of making composite cermet articles |
US5679445A (en) * | 1994-12-23 | 1997-10-21 | Kennametal Inc. | Composite cermet articles and method of making |
US5541006A (en) * | 1994-12-23 | 1996-07-30 | Kennametal Inc. | Method of making composite cermet articles and the articles |
US5841045A (en) * | 1995-08-23 | 1998-11-24 | Nanodyne Incorporated | Cemented carbide articles and master alloy composition |
EP0759480B1 (de) * | 1995-08-23 | 2002-01-30 | Toshiba Tungaloy Co. Ltd. | Flächen-kristallines Wolframkarbid enthaltendes Hartmetall, Zusammensetzung zur Herstellung von flächen-kristallines Wolframkarbid und Verfahren zur Herstellung des Hartmetalls |
SE517473C2 (sv) * | 1996-07-19 | 2002-06-11 | Sandvik Ab | Vals för varmvalsning med beständighet mot termiska sprickor och förslitning |
US5976707A (en) * | 1996-09-26 | 1999-11-02 | Kennametal Inc. | Cutting insert and method of making the same |
JPH10138027A (ja) * | 1996-11-11 | 1998-05-26 | Shinko Kobelco Tool Kk | ドリル用超硬合金および該合金を用いたプリント基板穿孔用ドリル |
ZA99430B (en) | 1998-01-23 | 1999-07-21 | Smith International | Hardfacing rock bit cones for erosion protection. |
US6244364B1 (en) | 1998-01-27 | 2001-06-12 | Smith International, Inc. | Earth-boring bit having cobalt/tungsten carbide inserts |
US6065552A (en) * | 1998-07-20 | 2000-05-23 | Baker Hughes Incorporated | Cutting elements with binderless carbide layer |
DE19907749A1 (de) * | 1999-02-23 | 2000-08-24 | Kennametal Inc | Gesinterter Hartmetallkörper und dessen Verwendung |
US6908688B1 (en) | 2000-08-04 | 2005-06-21 | Kennametal Inc. | Graded composite hardmetals |
SE518890C2 (sv) * | 2000-09-27 | 2002-12-03 | Sandvik Ab | Hårdmetallverktyg för kallbearbetningsoperationer |
SE522730C2 (sv) * | 2000-11-23 | 2004-03-02 | Sandvik Ab | Metod för tillverkning av en belagd hårdmetallkropp avsedd för skärande bearbetning |
HUP0302074A2 (hu) * | 2001-05-16 | 2003-09-29 | Widia Gmbh | Kompozit anyag és eljárás annak elżállítására |
DE10130590B4 (de) * | 2001-05-16 | 2011-06-30 | Widia GmbH, 45145 | Verbundwerkstoff und Verfahren zu dessen Herstellung |
AT5837U1 (de) | 2002-04-17 | 2002-12-27 | Plansee Tizit Ag | Hartmetallbauteil mit gradiertem aufbau |
SE529013C2 (sv) * | 2005-05-27 | 2007-04-10 | Sandvik Intellectual Property | Hårdmetall för verktyg för kallbearbetning av dryckesburkar, samt användning av sådan hårdmetall i verktyg för kallbearbetning |
US8858871B2 (en) * | 2007-03-27 | 2014-10-14 | Varel International Ind., L.P. | Process for the production of a thermally stable polycrystalline diamond compact |
FR2914206B1 (fr) * | 2007-03-27 | 2009-09-04 | Sas Varel Europ Soc Par Action | Procede pour fabriquer une piece comprenant au moins un bloc en materiau dense constitue de particules dures dispersees dans une phase liante : application a des outils de coupe ou de forage. |
KR101211090B1 (ko) * | 2008-07-18 | 2012-12-12 | 일진다이아몬드(주) | 절삭 공구용 인서트 |
GB0816836D0 (en) | 2008-09-15 | 2008-10-22 | Element Six Holding Gmbh | Steel wear part with hard facing |
GB0816837D0 (en) * | 2008-09-15 | 2008-10-22 | Element Six Holding Gmbh | A Hard-Metal |
FR2936817B1 (fr) * | 2008-10-07 | 2013-07-19 | Varel Europ | Procece pour fabriquer une piece comprenant un bloc en materiau dense du type carbure cemente, presentant un grandient de proprietes et piece obtenue |
US8163232B2 (en) * | 2008-10-28 | 2012-04-24 | University Of Utah Research Foundation | Method for making functionally graded cemented tungsten carbide with engineered hard surface |
EP2184122A1 (de) * | 2008-11-11 | 2010-05-12 | Sandvik Intellectual Property AB | Zementierter Carbidkörper und Verfahren |
GB0903343D0 (en) * | 2009-02-27 | 2009-04-22 | Element Six Holding Gmbh | Hard-metal body with graded microstructure |
US20120177453A1 (en) * | 2009-02-27 | 2012-07-12 | Igor Yuri Konyashin | Hard-metal body |
US8277722B2 (en) * | 2009-09-29 | 2012-10-02 | Baker Hughes Incorporated | Production of reduced catalyst PDC via gradient driven reactivity |
US8936750B2 (en) * | 2009-11-19 | 2015-01-20 | University Of Utah Research Foundation | Functionally graded cemented tungsten carbide with engineered hard surface and the method for making the same |
US9388482B2 (en) * | 2009-11-19 | 2016-07-12 | University Of Utah Research Foundation | Functionally graded cemented tungsten carbide with engineered hard surface and the method for making the same |
CN102031435B (zh) * | 2010-11-02 | 2012-07-25 | 中南大学 | 一种表层钴含量呈梯度变化的硬质合金的制备工艺 |
US9764523B2 (en) * | 2011-11-29 | 2017-09-19 | Smith International, Inc. | High pressure carbide component with surfaces incorporating gradient structures |
JP6879935B2 (ja) * | 2015-04-30 | 2021-06-02 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | 切削工具 |
EP3594370A1 (de) | 2018-07-12 | 2020-01-15 | Ceratizit Luxembourg Sàrl | Ziehwerkzeug |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1246165A (en) * | 1914-05-16 | 1917-11-13 | Charles Ruzicka | Electrical-resistance material. |
US2121448A (en) * | 1936-02-14 | 1938-06-21 | Siemens Ag | Hard metal composition |
US2285900A (en) * | 1941-02-05 | 1942-06-09 | Steel Fabricators Co | Supporting device for infants |
GB667175A (en) * | 1948-01-23 | 1952-02-27 | Skoda Works | A process of manufacturing articles with a hard surface |
US2942335A (en) * | 1955-02-03 | 1960-06-28 | Firth Sterling Inc | Carbide metal |
US2939796A (en) * | 1957-11-15 | 1960-06-07 | Stora Kopparbergs Bergslags Ab | Sintered hard alloys |
US3419415A (en) * | 1964-09-29 | 1968-12-31 | Metco Inc | Composite carbide flame spray material |
US3329487A (en) * | 1965-02-15 | 1967-07-04 | Firth Sterling Inc | Sintered three-phase welding alloy of fe3w3c, wc, and fe |
US3490901A (en) * | 1966-10-24 | 1970-01-20 | Fujikoshi Kk | Method of producing a titanium carbide-containing hard metallic composition of high toughness |
AT276792B (de) * | 1967-06-20 | 1969-12-10 | Richard Dr Kieffer | Gesinterte Hartmetall-Legierung und Verfahren zu ihrer Herstellung |
US3661599A (en) * | 1969-03-25 | 1972-05-09 | Martin Marietta Corp | HIGH TEMPERATURE TiC-VC STRUCTURAL MATERIALS |
JPS4834004A (de) * | 1971-09-06 | 1973-05-15 | ||
US3804034A (en) * | 1972-05-09 | 1974-04-16 | Boride Prod Inc | Armor |
US4097275A (en) * | 1973-07-05 | 1978-06-27 | Erich Horvath | Cemented carbide metal alloy containing auxiliary metal, and process for its manufacture |
DE2433737C3 (de) * | 1974-07-13 | 1980-05-14 | Fried. Krupp Gmbh, 4300 Essen | Hartmetallkörper, Verfahren zu seiner Herstellung und seine Verwendung |
US4049876A (en) * | 1974-10-18 | 1977-09-20 | Sumitomo Electric Industries, Ltd. | Cemented carbonitride alloys |
JPS589137B2 (ja) * | 1975-02-14 | 1983-02-19 | ダイジエツトコウギヨウ カブシキガイシヤ | 切削用超硬合金 |
US4049380A (en) * | 1975-05-29 | 1977-09-20 | Teledyne Industries, Inc. | Cemented carbides containing hexagonal molybdenum |
US4022584A (en) * | 1976-05-11 | 1977-05-10 | Erwin Rudy | Sintered cermets for tool and wear applications |
US4035541A (en) * | 1975-11-17 | 1977-07-12 | Kennametal Inc. | Sintered cemented carbide body coated with three layers |
US4066451A (en) * | 1976-02-17 | 1978-01-03 | Erwin Rudy | Carbide compositions for wear-resistant facings and method of fabrication |
US4150195A (en) * | 1976-06-18 | 1979-04-17 | Sumitomo Electric Industries, Ltd. | Surface-coated cemented carbide article and a process for the production thereof |
JPS5420909A (en) * | 1977-07-17 | 1979-02-16 | Sumitomo Electric Ind Ltd | Method of apparatus for sintering supper hard alloy |
CH621749A5 (de) * | 1977-08-09 | 1981-02-27 | Battelle Memorial Institute | |
JPS5450408A (en) * | 1977-09-29 | 1979-04-20 | Sumitomo Electric Ind Ltd | Superhard alloy and its preparation |
US4265662A (en) * | 1977-12-29 | 1981-05-05 | Sumitomo Electric Industries, Ltd. | Hard alloy containing molybdenum and tungsten |
JPS54153716A (en) * | 1978-05-25 | 1979-12-04 | Toshiba Tungaloy Co Ltd | Surface coated super hard alloy having good resistance to peeling |
EP0044351B1 (de) * | 1980-07-19 | 1985-01-30 | Kernforschungszentrum Karlsruhe Gmbh | Hartlegierung, bestehend aus einem oder mehreren Hartstoffen und einer Bindemetall-Legierung, und Verfahren zum Herstellen dieser Legierung |
US4368788A (en) * | 1980-09-10 | 1983-01-18 | Reed Rock Bit Company | Metal cutting tools utilizing gradient composites |
JPS57185954A (en) * | 1981-05-06 | 1982-11-16 | Showa Denko Kk | High pressure phase boron nitride sintered body |
JPS5841338A (ja) * | 1981-09-04 | 1983-03-10 | Hitachi Ltd | 無炎アトマイザ |
JPS59184718A (ja) * | 1983-04-06 | 1984-10-20 | Hitachi Metals Ltd | (W,Ti)C粉末の製造方法 |
US4472351A (en) * | 1983-05-05 | 1984-09-18 | Uop Inc. | Densification of metal-ceramic composites |
JPS6039408U (ja) * | 1983-08-24 | 1985-03-19 | 三菱マテリアル株式会社 | 一部非研削超硬ドリル |
EP0182759B2 (de) * | 1984-11-13 | 1993-12-15 | Santrade Ltd. | Gesinterte Hartmetallegierung zum Gesteinsbohren und zum Schneiden von Mineralien |
-
1986
- 1986-05-12 SE SE8602146A patent/SE456428B/xx not_active IP Right Cessation
-
1987
- 1987-04-23 IN IN299/MAS/87A patent/IN169351B/en unknown
- 1987-04-29 DE DE8787850144T patent/DE3776197D1/de not_active Expired - Lifetime
- 1987-04-29 EP EP87850144A patent/EP0247985B1/de not_active Expired - Lifetime
- 1987-04-29 AT AT87850144T patent/ATE71984T1/de active
- 1987-04-30 ZA ZA873144A patent/ZA873144B/xx unknown
- 1987-05-05 US US07/047,004 patent/US4820482A/en not_active Expired - Fee Related
- 1987-05-06 CA CA000536478A patent/CA1285777C/en not_active Expired - Lifetime
- 1987-05-11 IE IE121187A patent/IE59930B1/en not_active IP Right Cessation
- 1987-05-11 BR BR8702375A patent/BR8702375A/pt not_active IP Right Cessation
- 1987-05-11 JP JP62112644A patent/JPS6324032A/ja active Pending
- 1987-05-12 FI FI872093A patent/FI88054C/fi not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109434115A (zh) * | 2018-11-13 | 2019-03-08 | 歌尔股份有限公司 | 一种多层梯度硬质合金冲头 |
Also Published As
Publication number | Publication date |
---|---|
SE8602146D0 (sv) | 1986-05-12 |
ATE71984T1 (de) | 1992-02-15 |
BR8702375A (pt) | 1988-02-17 |
FI88054C (fi) | 1993-03-25 |
ZA873144B (en) | 1987-10-27 |
FI872093A (fi) | 1987-11-13 |
FI872093A0 (fi) | 1987-05-12 |
IE59930B1 (en) | 1994-05-04 |
SE456428B (sv) | 1988-10-03 |
US4820482A (en) | 1989-04-11 |
FI88054B (fi) | 1992-12-15 |
IE871211L (en) | 1987-11-12 |
EP0247985B1 (de) | 1992-01-22 |
IN169351B (de) | 1991-09-28 |
EP0247985A2 (de) | 1987-12-02 |
CA1285777C (en) | 1991-07-09 |
SE8602146L (sv) | 1987-11-13 |
JPS6324032A (ja) | 1988-02-01 |
EP0247985A3 (en) | 1988-01-27 |
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