KR940013677A - 결합상 농축 표면영역을 가진 초경합금 - Google Patents
결합상 농축 표면영역을 가진 초경합금 Download PDFInfo
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- KR940013677A KR940013677A KR1019930027385A KR930027385A KR940013677A KR 940013677 A KR940013677 A KR 940013677A KR 1019930027385 A KR1019930027385 A KR 1019930027385A KR 930027385 A KR930027385 A KR 930027385A KR 940013677 A KR940013677 A KR 940013677A
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- Prior art keywords
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- cemented carbide
- dissolution
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- cubic
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
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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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
-
- 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
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
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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
- 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
-
- 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
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/10—Inert gases
-
- 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
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/20—Use of vacuum
-
- 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
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/30—Carburising atmosphere
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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
- B22F2207/03—Composition gradients of the metallic binder phase in cermets
-
- 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
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- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12021—All metal or with adjacent metals having metal particles having composition or density gradient or differential porosity
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12049—Nonmetal component
- Y10T428/12056—Entirely inorganic
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Carbon And Carbon Compounds (AREA)
- Ceramic Products (AREA)
Abstract
본 발명은 새로운 결합성 농축방법에 관계한다. 이 방법은 성층을 만드는 요건과 함께 큐빅상 용해에 따른 결합상 농축을 수반하며 그 결과 특별한 구조를 얻을 수 있다. 새로운 구조는 공지것과 비교할 때 더 깊은 성층화된 층을 얻고 또한 결합상 최대 농축량을 줄일 수 있는 것을 특징으로 한다. 성층 및 큐빅상 용해의 조화성은 절삭공구용 탄화 텅스텐 기초 초경합금의 특성을 최적화 하는 가능성도 제공한다.
새로운 방법은 두가지 변수를 조합한 것이다. 큐빅상 용해는 표면에서 용해구역에 밀접하고 그 아래까지 걸쳐진 영역으로 최대량의 성층 결합상을 가진 영역을 이동시킨다. 용해깊이, 간격평형성과 냉각속도를 조절하여, 초경합금이 강인성과 가소성 변형내성의 복합적 특성을 갖게한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 결합상 농축 표면영역의 구조를 1200 배율로 보여주고,
제2도는 본 발명에 따른 결합상 농축 표면영역의 Ti, Co 또한 W의 분포를 보여준다.
Claims (5)
- 결합상속에 WC와 큐빅상을 함유하는 것으로서 결합상 농축 표면영역은 큐빅상이 없는 외부와 또한 큐비강 및 성층 결합상층을 함유한 내부를 포함하는 것을 특징으로 하는 결합상 농축표면영역을 갖춘 초경합금.
- 제1항에 있어서, 표면영역은 75㎛ 이하로서 20 내지 50㎛이고 그중 외부는 10㎛ 이상 및 25㎛이하이고 내부는 l0㎛ 이상 및 30㎛ 이하의 두께를 갖는 것을 특징으로 하는 초경합금.
- 전술한 항중 어느 한항에 있어서, 내부의 결합상 함량은 정상 결합상 함량의 1.5 내지 4배 특히 2-3배이고 텅스텐 함량은 정상함량의 최소 0.95 이하인 것을 특징으로 하는 초경합금.
- 불활성 대기나 진공상태에서 15 내지 180분 동안 1380-1520℃ 온도로 최적량의 탄소를 사용하여 질소함유 예비소결체 또는 그린시이트를 소결하고 응고구역에서 20-100℃/h 특히 40-75℃/h 속도로 서냉하여1300-1220℃ 특히 1290-1250℃까지 냉각시키는 것을 특징으로 하는 결합상 농축 초경합금 제조방법.
- CH4/H2 또는 C02/CO 혼합물을 함유하는 탄화 대기 중에서 30-180분간 1380 내지 1520℃ 온도로 반공융성 물체를 소결한후 같은 대기에서 또는 질소 분위기나 진공상태에서 서냉하는 것을 특징으로 하는 결합상 농축 초경합금 제조방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203851A SE505425C2 (sv) | 1992-12-18 | 1992-12-18 | Hårdmetall med bindefasanrikad ytzon |
SE9203851-2 | 1992-12-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940013677A true KR940013677A (ko) | 1994-07-15 |
KR100261521B1 KR100261521B1 (ko) | 2000-07-15 |
Family
ID=20388197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930027385A KR100261521B1 (ko) | 1992-12-18 | 1993-12-13 | 결합상 농축 표면영역을 가진 초경합금 |
Country Status (10)
Country | Link |
---|---|
US (2) | US5451469A (ko) |
EP (1) | EP0603143B1 (ko) |
JP (1) | JPH06228700A (ko) |
KR (1) | KR100261521B1 (ko) |
CN (1) | CN1057570C (ko) |
AT (1) | ATE189707T1 (ko) |
BR (1) | BR9305109A (ko) |
DE (1) | DE69327838T2 (ko) |
RU (1) | RU2116161C1 (ko) |
SE (1) | SE505425C2 (ko) |
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CA1319497C (en) * | 1988-04-12 | 1993-06-29 | Minoru Nakano | Surface-coated cemented carbide and a process for the production of the same |
JP2684721B2 (ja) * | 1988-10-31 | 1997-12-03 | 三菱マテリアル株式会社 | 表面被覆炭化タングステン基超硬合金製切削工具およびその製造法 |
US5310605A (en) * | 1992-08-25 | 1994-05-10 | Valenite Inc. | Surface-toughened cemented carbide bodies and method of manufacture |
JP2700216B2 (ja) * | 1992-10-26 | 1998-01-19 | 株式会社エース電研 | パチンコ機 |
-
1992
- 1992-12-18 SE SE9203851A patent/SE505425C2/sv not_active IP Right Cessation
-
1993
- 1993-11-30 US US08/159,257 patent/US5451469A/en not_active Expired - Lifetime
- 1993-12-08 AT AT93850229T patent/ATE189707T1/de active
- 1993-12-08 EP EP93850229A patent/EP0603143B1/en not_active Expired - Lifetime
- 1993-12-08 DE DE69327838T patent/DE69327838T2/de not_active Expired - Lifetime
- 1993-12-13 KR KR1019930027385A patent/KR100261521B1/ko not_active IP Right Cessation
- 1993-12-17 BR BR9305109A patent/BR9305109A/pt not_active Application Discontinuation
- 1993-12-17 RU RU93056637/02A patent/RU2116161C1/ru active
- 1993-12-18 CN CN93121013A patent/CN1057570C/zh not_active Expired - Lifetime
- 1993-12-20 JP JP5344568A patent/JPH06228700A/ja active Pending
-
1994
- 1994-11-17 US US08/343,921 patent/US5649279A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1089532A (zh) | 1994-07-20 |
RU2116161C1 (ru) | 1998-07-27 |
EP0603143A2 (en) | 1994-06-22 |
DE69327838D1 (de) | 2000-03-16 |
ATE189707T1 (de) | 2000-02-15 |
CN1057570C (zh) | 2000-10-18 |
BR9305109A (pt) | 1994-07-05 |
EP0603143B1 (en) | 2000-02-09 |
KR100261521B1 (ko) | 2000-07-15 |
DE69327838T2 (de) | 2000-10-12 |
SE9203851L (sv) | 1994-06-19 |
US5451469A (en) | 1995-09-19 |
EP0603143A3 (en) | 1995-09-27 |
JPH06228700A (ja) | 1994-08-16 |
SE9203851D0 (sv) | 1992-12-18 |
US5649279A (en) | 1997-07-15 |
SE505425C2 (sv) | 1997-08-25 |
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