WO1990005200A1 - Hartmetallkörper - Google Patents
Hartmetallkörper Download PDFInfo
- Publication number
- WO1990005200A1 WO1990005200A1 PCT/DE1989/000662 DE8900662W WO9005200A1 WO 1990005200 A1 WO1990005200 A1 WO 1990005200A1 DE 8900662 W DE8900662 W DE 8900662W WO 9005200 A1 WO9005200 A1 WO 9005200A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mass
- hard
- hard metal
- metal body
- chromium
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 35
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 15
- 239000011651 chromium Substances 0.000 claims abstract description 15
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 9
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 5
- 239000012298 atmosphere Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 229910052786 argon Inorganic materials 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 239000011261 inert gas Substances 0.000 claims 1
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims 1
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims 1
- 229910003468 tantalcarbide Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 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 claims 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052756 noble gas Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 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 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten 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
- 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
-
- 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
- C22C29/067—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 comprising a particular metallic binder
Definitions
- the invention relates to a hard metal body, the hard material phase of which consists of tungsten carbide and the binder metal phase of which is made of nickel and chromium, and which is produced from powdery raw materials by pressing and sintering.
- Such hard metal bodies are already known, e.g. US Pat. No. 3,215,510 describes a hard metal body which consists of 10 to 30% by mass of a chromium-nickel binding alloy, the rest being tungsten carbide, the weight ratio of chromium to binding metal being between 0.015 and 0.15.
- This hard metal body is made from powdered raw materials by pressing and sintering.
- a sintered hard alloy is also known from EP 0028620 B1, in which for the purpose of good strength, toughness properties and corrosion and oxidation resistance 55 to 95% by volume of hard materials with at least 90% WC and optionally further carbides and 5 to 45 Vol .-% single-phase binder with at least 50% nickel, 2 to 25% chromium, 1 to 15% molybdenum and in each case a maximum of 10% manganese, 5% aluminum, 5% silicon, 10% copper, 30% cobalt, 20% iron and 13 % Tungsten exists.
- EP 0214679 A1 proposes a corrosion-resistant hard metal alloy consisting of 31 to 84 wt.% Tungsten carbide, 15 to 60 wt 1 to 9% by weight of a binding alloy composed of nickel and / or cobalt with 2 to 40% by weight of chromium additive. This alloy should also have good mechanical strength properties and high wear resistance.
- the hard metal additionally contains TiN, the proportion of TiN and the binder metal phase being 5 to 25% by mass and consisting of 0.1 to 10% TiN, 5 to 15% by mass Chromium, the rest nickel is composed.
- the advantages of this alloy lie in the improved corrosion resistance and the simultaneous considerable reduction in abrasive wear. The good mechanical properties enable the alloy to be used safely in chemical plant construction and materials exposed to extreme combustion temperatures.
- the hard metal body contains a proportion of TiN and binder metal phase of 8 to 13 mass%, consisting of 2 to 5% titanium nitride, 8 to 12% chromium, the rest being nickel.
- the hard metal body is preferably in a noble gas atmosphere, in particular an argon atmosphere, at a temperature of 1300 to 1400 ° C. for a period of 20 to 200 minutes treated at a pressure of 20 to 3000 bar.
- a noble gas atmosphere in particular an argon atmosphere
- the hard metal good strength and excellent toughness, which can be attributed to a high degree of compaction of the hard metal structure.
- Material 1 90.5 mass% WC, 8.5% Ni, 1% Cr material 2 90.2 mass% WC, 8.5% Ni, 1% Cr, 0.3% Mo material 3 90.2 masses % WC, 8.5% Ni, 1% Cr, 0.3% TiN
- the completely sintered metals and then exposed to a noble gas atmosphere under pressure showed the specific mass loss shown in FIG. 1:
- the abrasive wear of the hard metal bodies according to the invention was significantly lower than that of the two other materials 1 and 2 known according to the prior art.
- the current density-potential curves measured are printed in FIG. 2.
- the hard metal with the TiN additive according to the invention shows a current increase under the set test conditions only at more positive potentials and is therefore less sensitive to corrosion.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3837006.9 | 1988-10-31 | ||
| DE3837006A DE3837006C3 (de) | 1988-10-31 | 1988-10-31 | Hartmetall |
| IN757CA1989 IN172467B (en, 2012) | 1988-10-31 | 1989-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1990005200A1 true WO1990005200A1 (de) | 1990-05-17 |
Family
ID=25873777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1989/000662 WO1990005200A1 (de) | 1988-10-31 | 1989-10-18 | Hartmetallkörper |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5223020A (en, 2012) |
| EP (1) | EP0561768A1 (en, 2012) |
| JP (1) | JPH04501438A (en, 2012) |
| DE (1) | DE3837006C3 (en, 2012) |
| IN (1) | IN172467B (en, 2012) |
| WO (1) | WO1990005200A1 (en, 2012) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996033830A1 (de) * | 1993-11-30 | 1996-10-31 | Widia Gmbh | Verbundwerkstoff und verfahren zu seiner herstellung |
| WO1998002394A1 (en) * | 1996-07-11 | 1998-01-22 | Sandvik Ab (Publ) | Sintering method |
| RU2129619C1 (ru) * | 1997-04-22 | 1999-04-27 | Институт материаловедения Дальневосточного отделения РАН | Шихта электродного материала для электроискрового легирования |
| EP1393813A1 (de) * | 2002-08-24 | 2004-03-03 | Hans-Peter Kämpfer | Als Zyklon ausgebildeter Fliehkraftabscheider |
| RU2280093C2 (ru) * | 2004-11-01 | 2006-07-20 | Государственное учреждение "Институт химии твердого тела" Уральского отделения Российской академии наук | Шихта для изготовления электрода для электроискрового легирования |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9100227D0 (sv) | 1991-01-25 | 1991-01-25 | Sandvik Ab | Corrosion resistant cemented carbide |
| US5925197A (en) * | 1992-01-24 | 1999-07-20 | Sandvik Ab | Hard alloys for tools in the wood industry |
| EP0556788B1 (en) * | 1992-02-20 | 1997-05-14 | Mitsubishi Materials Corporation | Hard alloy |
| US5543235A (en) * | 1994-04-26 | 1996-08-06 | Sintermet | Multiple grade cemented carbide articles and a method of making the same |
| CN1075125C (zh) | 1996-12-16 | 2001-11-21 | 住友电气工业株式会社 | 硬质合金、其制造方法及硬质合金工具 |
| US6071469A (en) * | 1997-06-23 | 2000-06-06 | Sandvik Ab | Sintering method with cooling from sintering temperature to below 1200° C. in a hydrogen and noble gas atmosphere |
| US6228484B1 (en) * | 1999-05-26 | 2001-05-08 | Widia Gmbh | Composite body, especially for a cutting tool |
| US6521353B1 (en) | 1999-08-23 | 2003-02-18 | Kennametal Pc Inc. | Low thermal conductivity hard metal |
| TWI291458B (en) * | 2001-10-12 | 2007-12-21 | Phild Co Ltd | Method and device for producing titanium-containing high performance water |
| EP1453627A4 (en) * | 2001-12-05 | 2006-04-12 | Baker Hughes Inc | CONSOLIDATED HARD MATERIALS, METHODS OF PRODUCTION AND APPLICATIONS |
| DE10225521A1 (de) * | 2002-06-10 | 2003-12-18 | Widia Gmbh | Hartmetall-Substratkörper und Verfahren zu dessen Herstellung |
| DK2199418T3 (en) * | 2008-12-18 | 2017-10-16 | Sandvik Intellectual Property | Rotary cutting knife |
| CN114657434A (zh) * | 2022-03-25 | 2022-06-24 | 成都西顿硬质合金有限公司 | 一种硬质合金的材料及制备方法 |
| CN116590586A (zh) * | 2023-04-14 | 2023-08-15 | 深圳市海明润超硬材料股份有限公司 | 一种硬质合金基体、聚晶金刚石复合片及其制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3519114A1 (de) * | 1984-05-29 | 1985-12-05 | Sumitomo Electric Industries, Ltd., Osaka | Werkzeug zum halbwarm- und warmschmieden sowie verfahren zum herstellen eines solchen werkzeugs |
| EP0195965A2 (de) * | 1985-03-28 | 1986-10-01 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Hartmetall und Verfahren zu seiner Herstellung |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE764144C (de) * | 1939-09-05 | 1952-07-24 | Hartmetallwerkzeugfabrik Meuts | Verfahren zum Herstellen von harten Auflagen fuer Messer, Schneidwerkzeuge und sonstige Arbeitsgeraete |
| US3215510A (en) * | 1963-10-02 | 1965-11-02 | Gen Electric | Alloy |
| US3623849A (en) * | 1969-08-25 | 1971-11-30 | Int Nickel Co | Sintered refractory articles of manufacture |
| EP0002888B1 (en) * | 1977-12-23 | 1982-01-20 | S.S.S. Patents Limited | Power transmission system |
| JPS5613695A (en) * | 1979-07-11 | 1981-02-10 | Mitsubishi Electric Corp | Ion nitriding devide power supply utilizing glow discharge |
| JPS5716161A (en) * | 1980-07-02 | 1982-01-27 | Ngk Spark Plug Co Ltd | Preparation of coating tip for cutting |
| US4330333A (en) * | 1980-08-29 | 1982-05-18 | The Valeron Corporation | High titanium nitride cutting material |
| JPS59229431A (ja) * | 1983-05-20 | 1984-12-22 | Mitsubishi Metal Corp | 切削工具用高靭性サ−メツトの製造法 |
| US4649084A (en) * | 1985-05-06 | 1987-03-10 | General Electric Company | Process for adhering an oxide coating on a cobalt-enriched zone, and articles made from said process |
-
1988
- 1988-10-31 DE DE3837006A patent/DE3837006C3/de not_active Expired - Fee Related
-
1989
- 1989-09-15 IN IN757CA1989 patent/IN172467B/en unknown
- 1989-10-18 US US07/684,901 patent/US5223020A/en not_active Expired - Fee Related
- 1989-10-18 JP JP1510590A patent/JPH04501438A/ja active Pending
- 1989-10-18 WO PCT/DE1989/000662 patent/WO1990005200A1/de not_active Application Discontinuation
- 1989-10-18 EP EP89911363A patent/EP0561768A1/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3519114A1 (de) * | 1984-05-29 | 1985-12-05 | Sumitomo Electric Industries, Ltd., Osaka | Werkzeug zum halbwarm- und warmschmieden sowie verfahren zum herstellen eines solchen werkzeugs |
| EP0195965A2 (de) * | 1985-03-28 | 1986-10-01 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Hartmetall und Verfahren zu seiner Herstellung |
Non-Patent Citations (4)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 58 (C-051), 21. April 1981; P JP-A-56009352 (Mitsubhishi) 30. Januar 1981 * |
| PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 15 (C-089), 28. Januar 1982; & JP-A-56136952 (Mitsubishi) 26. Oktober 1981 * |
| PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 78 (C-102), 15. Mai 1982; & JP-A-57016143 (Mitsubishi) 27. Januar 1982 * |
| PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 297 (M-432), 25. November 1985; & JP-A-60135502 (Hooya) 18. Juli 1985 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996033830A1 (de) * | 1993-11-30 | 1996-10-31 | Widia Gmbh | Verbundwerkstoff und verfahren zu seiner herstellung |
| US6124040A (en) * | 1993-11-30 | 2000-09-26 | Widia Gmbh | Composite and process for the production thereof |
| WO1998002394A1 (en) * | 1996-07-11 | 1998-01-22 | Sandvik Ab (Publ) | Sintering method |
| RU2129619C1 (ru) * | 1997-04-22 | 1999-04-27 | Институт материаловедения Дальневосточного отделения РАН | Шихта электродного материала для электроискрового легирования |
| EP1393813A1 (de) * | 2002-08-24 | 2004-03-03 | Hans-Peter Kämpfer | Als Zyklon ausgebildeter Fliehkraftabscheider |
| RU2280093C2 (ru) * | 2004-11-01 | 2006-07-20 | Государственное учреждение "Институт химии твердого тела" Уральского отделения Российской академии наук | Шихта для изготовления электрода для электроискрового легирования |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3837006C2 (en, 2012) | 1990-08-30 |
| US5223020A (en) | 1993-06-29 |
| IN172467B (en, 2012) | 1993-08-14 |
| EP0561768A1 (de) | 1993-09-29 |
| DE3837006A1 (de) | 1990-05-03 |
| DE3837006C3 (de) | 1993-11-18 |
| JPH04501438A (ja) | 1992-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3837006C3 (de) | Hartmetall | |
| EP0195965B1 (de) | Hartmetall und Verfahren zu seiner Herstellung | |
| DE2005707C3 (de) | Hartstoffpulver zur Herstellung von metallgebundenen Hartstofflegierungen | |
| DE69734515T2 (de) | Gesinterte hartlegierung | |
| DE2407410B2 (de) | Karbidhartmetall mit ausscheidungshärtbarer metallischer Matrix | |
| DE69802051T2 (de) | Legierungen zum Verbinden auf Sinterkarbid, und damit hergestellte Verbundwerkstoffe | |
| DE19907749A1 (de) | Gesinterter Hartmetallkörper und dessen Verwendung | |
| DE3881979T2 (de) | Legiertes Stahlpulver für Pulvermetallurgische Verfahren. | |
| DE3238555C2 (en, 2012) | ||
| DE3884310T2 (de) | Verbundlegierung. | |
| DE1298293B (de) | Hochverschleissfeste, bearbeitbare und haertbare Sinterstahllegierung und Verfahren zu deren Herstellung | |
| AT405296B (de) | Gleitlagerwerkstoff aus einer bis auf erschmelzungsbedingte verunreinigungen siliciumfreien aluminiumlegierung | |
| EP0214679B1 (de) | Korrosionsfeste Hartmetall-Legierung | |
| DE2412579A1 (de) | Pulvermetallurgische gegenstaende | |
| CH662130A5 (de) | Legierung auf kobaltbasis, insbesondere fuer ventile und ventilsitze an verbrennungsmotoren. | |
| DE2631906A1 (de) | Metallpulvermischung fuer die herstellung von in der zahnheilkunde verwendbaren zahnamalgamen durch mischen mit quecksilber | |
| DE3116185A1 (de) | "metallbinder fuer das verpressen von metallpulvern" | |
| DE2063181B2 (en, 2012) | ||
| DE2745209A1 (de) | Magnetwerkstoff | |
| EP0130177B1 (de) | Sinterlegierung auf Eisenbasis | |
| DE2137650A1 (de) | Carbid Metall Verbundstoff und Ver fahren zu dessen Herstellung | |
| DE3321438C2 (en, 2012) | ||
| CH637695A5 (de) | Korrosions- und oxydationsbestaendige mehrstofflegierung auf ni-basis. | |
| DE1191113B (de) | Verfahren zur pulvermetallurgischen Herstellung von kriechfesten Legierungen | |
| DE2726939C2 (de) | Verbundkörper und Verfahren zur Herstellung desselben |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LU NL SE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1989911363 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1989911363 Country of ref document: EP |
|
| WWR | Wipo information: refused in national office |
Ref document number: 1989911363 Country of ref document: EP |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 1989911363 Country of ref document: EP |