KR970069199A - 텅스텐 중합금의 제조방법 - Google Patents

텅스텐 중합금의 제조방법 Download PDF

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Publication number
KR970069199A
KR970069199A KR1019960013836A KR19960013836A KR970069199A KR 970069199 A KR970069199 A KR 970069199A KR 1019960013836 A KR1019960013836 A KR 1019960013836A KR 19960013836 A KR19960013836 A KR 19960013836A KR 970069199 A KR970069199 A KR 970069199A
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KR
South Korea
Prior art keywords
manganese
tungsten
sintering
nickel
gold
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Application number
KR1019960013836A
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English (en)
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KR100186931B1 (ko
Inventor
홍문희
백운형
노준웅
송홍섭
이성
김은표
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배문한
국방과학연구소
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Priority to KR1019960013836A priority Critical patent/KR100186931B1/ko
Priority to GB9708721A priority patent/GB2312682B/en
Priority to US08/841,714 priority patent/US5956558A/en
Publication of KR970069199A publication Critical patent/KR970069199A/ko
Application granted granted Critical
Publication of KR100186931B1 publication Critical patent/KR100186931B1/ko

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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
    • 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
    • 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
    • C22C1/045—Alloys based on 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
    • 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
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F3/26—Impregnating
    • 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
    • B22F2201/01—Reducing atmosphere
    • B22F2201/013—Hydrogen

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

본 발명은 텅스텐 중합금의 제조방법에 관한 것으로, 종래에는 텅스텐, 니켈, 철, 망간을 혼합하여 성형하고,그 성형품을 소결하여 제조하였으나 망간의 중량이 0.5% ㄴ이상에 되면 기공이 발생하는 문제점이 있었다. 본 발명은 망간을 함유한 텅스텐 중합금의 경우에 기공의 형성이 텅스텐, 니켈, 철 분말의 표면에 있는 산화물들이 환원되면서 산화 망간을 만들기 때문이라는 사실을 고려하여, 망간을 제외한 성분만으로 구성된 성형체 또는 소결체를 먼저 제조하고, 그 위에 망간을 얹어서 소결하는 방법으로 제조함으로서, 기공의 생성을 억제하여, 비이론 밀도 100%의 텅스텐 중합금을 얻을 수 있는 효과가 있다.

Description

텅스텐 중합금의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래 텅스텐 중합금의 소결공정을 설명하기 위한 공정도, 제4도는 본 발명의 텅스텐 중합금의 제조순서를 보인 플로우차트, 제5도는 본 발명 텅스텐 중합금의 소결공정을 설명하기 위한 공정도.

Claims (8)

  1. 90중량% 이상의 텅스텐에 니켈, 철, 코발트 중 1종 이상이 선택된 중합금 성형체를 제조하는 단계와, 그 성형체의 상면에 망간을 올려 놓고 소결을 하여 망간이 상기 성형체의 내부로 스며들도록 하는 단계의 순서로 진행하는 것을 특징으로 하는 텅스텐 중합금의 제조방법.
  2. 제1항에 있어서, 상기 망간의 함량은 0.1%-5%의 범위를 가지는 것을 특징으로 하는 텅스텐 중합금의 제조방법.
  3. 제1항에 있어서, 상기 소결을 실시하는 온도는 1350℃-1500℃이고, 소결시간은 1분-80분인 것을 특징으로 하는 텅스텐 중합금의 제조방법.
  4. 제1항에 있어서, 상기 소결은 수소 분위기에서 실시함을 특징으로 하는 텅스텐 중합금의 제조방법.
  5. 90중량% 이상의 텅스텐에 니켈, 철, 코발트 중 1종 이상이 선택된 중합금 소결체를 제조하는 단계와, 그 소결체의 상면에 망간을 올려 놓고 소결을 하여 망간이 상기 소결체의 내부로 스며들도록 하는 단계의 순서로 진행하는 것을 특징으로 하는 텅스텐 중합금의 제조방법.
  6. 제1항에 있어서, 상기 망간의 함량은 0.1%-5%의 범위를 가지는 것을 특징으로 하는 텅스텐 중합금의 제조방법.
  7. 제4항에 있어서, 상기 소결을 실시하는 온도는 1350℃-1500℃이고, 소결시간은 1분-80분인 것을 특징으로 하는 텅스텐 중합금의 제조방법.
  8. 제4항에 있어서, 상기 소결은 수소 분위기에서 실시함을 특징으로 하는 텅스텐 중합금의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960013836A 1996-04-30 1996-04-30 텅스텐 중합금의 제조방법 KR100186931B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019960013836A KR100186931B1 (ko) 1996-04-30 1996-04-30 텅스텐 중합금의 제조방법
GB9708721A GB2312682B (en) 1996-04-30 1997-04-29 Fabrication method for tungsten alloy
US08/841,714 US5956558A (en) 1996-04-30 1997-04-30 Fabrication method for tungsten heavy alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960013836A KR100186931B1 (ko) 1996-04-30 1996-04-30 텅스텐 중합금의 제조방법

Publications (2)

Publication Number Publication Date
KR970069199A true KR970069199A (ko) 1997-11-07
KR100186931B1 KR100186931B1 (ko) 1999-04-01

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US (1) US5956558A (ko)
KR (1) KR100186931B1 (ko)
GB (1) GB2312682B (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830022B1 (fr) * 2001-09-26 2004-08-27 Cime Bocuze Alliage base tungstene fritte a haute puissance
US20040247479A1 (en) * 2003-06-04 2004-12-09 Lockheed Martin Corporation Method of liquid phase sintering a two-phase alloy
CN103657354B (zh) * 2012-08-31 2016-09-07 安泰天龙钨钼科技有限公司 用于钨合金烧结炉的气体净化回收循环再利用系统和工艺
CN113477925B (zh) * 2021-07-02 2024-08-02 西安华力装备科技有限公司 一种提高钨合金棒材两端性能一致性的工艺方法

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200088A (en) * 1938-09-14 1940-05-07 Westinghouse Electric & Mfg Co Electrical contact member
US2456779A (en) * 1947-01-27 1948-12-21 American Electro Metal Corp Composite material and shaped bodies therefrom
US2612443A (en) * 1947-12-26 1952-09-30 Sintereast Corp Of America Powder metallurgy
US2581252A (en) * 1947-12-31 1952-01-01 Sintercast Corp America Powder metallurgy articles
US2694007A (en) * 1950-09-12 1954-11-09 Sintercast Corp America Method for the manufacture of uniform, high-density, high-temperature resistant articles
US2714556A (en) * 1950-11-25 1955-08-02 Sintercast Corp America Powder metallurgical method of shaping articles from high melting metals
US2753859A (en) * 1952-03-07 1956-07-10 Thompson Prod Inc Valve seat insert
US2843501A (en) * 1956-08-01 1958-07-15 Sintercast Corp America Method for the precision production of infiltrated articles
US3285714A (en) * 1963-04-02 1966-11-15 Clevite Corp Refractory metal composite
US3411902A (en) * 1968-01-22 1968-11-19 Mallory & Co Inc P R Method of producing infiltrated contact material
CH519775A (de) * 1970-03-26 1972-02-29 Siemens Ag Verfahren zum Herstellen eines heterogenen Durchdringungs-Verbundmetalls als Kontaktwerkstoff für Vakuumschalter
US3888636A (en) * 1971-02-01 1975-06-10 Us Health High density, high ductility, high strength tungsten-nickel-iron alloy & process of making therefor
US3929424A (en) * 1973-10-23 1975-12-30 Mallory & Co Inc P R Infiltration of refractory metal base materials
US3979234A (en) * 1975-09-18 1976-09-07 The United States Of America As Represented By The United States Energy Research And Development Administration Process for fabricating articles of tungsten-nickel-iron alloy
US4431449A (en) * 1977-09-26 1984-02-14 Minnesota Mining And Manufacturing Company Infiltrated molded articles of spherical non-refractory metal powders
US4327156A (en) * 1980-05-12 1982-04-27 Minnesota Mining And Manufacturing Company Infiltrated powdered metal composite article
US4491558A (en) * 1981-11-05 1985-01-01 Minnesota Mining And Manufacturing Company Austenitic manganese steel-containing composite article
US4554218A (en) * 1981-11-05 1985-11-19 Minnesota Mining And Manufacturing Company Infiltrated powered metal composite article
US4784690A (en) * 1985-10-11 1988-11-15 Gte Products Corporation Low density tungsten alloy article and method for producing same
US4710223A (en) * 1986-03-21 1987-12-01 Rockwell International Corporation Infiltrated sintered articles
FR2633205B1 (fr) * 1988-06-22 1992-04-30 Cime Bocuze Procede de mise en forme directe et d'optimisation des caracteristiques mecaniques de projectiles perforants en alliage de tungstene a haute densite
US4990195A (en) * 1989-01-03 1991-02-05 Gte Products Corporation Process for producing tungsten heavy alloys
US5126102A (en) * 1990-03-15 1992-06-30 Kabushiki Kaisha Toshiba Fabricating method of composite material
USH1146H (en) * 1990-06-22 1993-03-02 The United States Of America As Represented By The Secretary Of The Army Plasma spraying tungsten heavy alloys
US5603073A (en) * 1991-04-16 1997-02-11 Southwest Research Institute Heavy alloy based on tungsten-nickel-manganese
DE4318827C2 (de) * 1993-06-07 1996-08-08 Nwm De Kruithoorn Bv Schwermetallegierung und Verfahren zu ihrer Herstellung

Also Published As

Publication number Publication date
GB2312682B (en) 1999-10-27
GB2312682A (en) 1997-11-05
KR100186931B1 (ko) 1999-04-01
US5956558A (en) 1999-09-21
GB9708721D0 (en) 1997-06-18

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