KR880004515A - 진공 차단기용 전극의 제조법 - Google Patents

진공 차단기용 전극의 제조법 Download PDF

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Publication number
KR880004515A
KR880004515A KR870009268A KR870009268A KR880004515A KR 880004515 A KR880004515 A KR 880004515A KR 870009268 A KR870009268 A KR 870009268A KR 870009268 A KR870009268 A KR 870009268A KR 880004515 A KR880004515 A KR 880004515A
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KR
South Korea
Prior art keywords
electrode
powder
circuit breaker
manufacturing
vacuum circuit
Prior art date
Application number
KR870009268A
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English (en)
Other versions
KR920003464B1 (ko
Inventor
류우지 와따나베
히사시 안도
기요지 이와시따
세이끼 시미즈
Original Assignee
미다 가쓰시게
가부시기가이샤 히다찌세이사꾸쇼
Priority date (The priority date 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 date listed.)
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Application filed by 미다 가쓰시게, 가부시기가이샤 히다찌세이사꾸쇼 filed Critical 미다 가쓰시게
Publication of KR880004515A publication Critical patent/KR880004515A/ko
Application granted granted Critical
Publication of KR920003464B1 publication Critical patent/KR920003464B1/ko

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/048—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by powder-metallurgical processes
    • 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
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • 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
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
    • H01H1/0206—Contacts characterised by the material thereof specially adapted for vacuum switches containing as major components Cu and Cr

Abstract

내용 없음

Description

진공차단기용 전극의 제조법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제조과정을 나타내는 플로우챠트.
제2도는 열간등압 압축성형처리 장치의 개략도.
* 도면의 주요부분에 대한 부호의 설명
1 : 예비소결체 4 : 챔버
2 : 캡슐 5 : 가열로
3 : 알루미나분말

Claims (7)

  1. Cu와 Ag으로 구성되는 족(group)으로부터 선택되는 적어도 하나의 원소를 포함한 도전성 금속분말과 상기 도전성 금속분말 보다 더 높은 융점을 갖는 내화성 재료분말을 혼합하는 단계와, 그 혼합물을 성형하는 단계와, 성형체를 소결하는 단계를 포함하는 진공 차단기용 전극의 제조방법에 있어서, 수소 분위기내에서 성형체를 예비소결하는 단계와, 상기 예비소결 단계보다 더 높은 온도에서 예비소결체에 열간 등압 압축 성형 처리를 가함으로써 액상 소결하고 상기 도전성 금속이 상기 열간등압 압축성형 처리시에 용해되어 그 용해된 금 속의 일부가 소결체 표면상에 스며 나오도록 하는 단계를 포함하는 것을 특징으로 하는 진공차단기용 전극제조법.
  2. 제1항에 있어서, 상기 예비소결 단계는 -70℃ 이하의 노점인 고순도 수소 분위기에서 행하여지는 것을 특징으로 하는 진공차단기용 전극제조법.
  3. 제1항에 있어서, 상기 내화성 분말은 Cr 분말인 것을 특징으로 하는 진공차단기용 전극제조법.
  4. 제1항에 있어서, 상기 예비소결체의 기공률은 20% 이하인 것을 특징으로 하는 진공차단기용 전극제조법.
  5. 제1항에 있어서, 상기 열간 등압 압축성형 처리에서의 가열온도의상한선은 상기 도전성 금속의 융점보다 200℃ 더 높은 온도인 것을 특징으로 하는 진공차단기용 전극제조법.
  6. 제1항에 있어서, 상기 열간 등압 압축성형 처리시에 진공배기, 가열 및 탈가스시키는 동안 상기 예비소결체를 캡슐내에 봉입하는 단계를 포함하는 것을 특징으로 하는 진공차단기용 전극제조법.
  7. Cu 분말과 Cr 분말을 혼합하는 단계와 그 혼합물을 성형하는 단계와, 그 성형체를 소결하는 단계를 포함하는 진공차단기용 전극제조법에 있어서, 고상소결을 행하기 위하여 Cu의 융점 바로 아래의 온도로 고순도 수소 분위기내에서 상기 성형체를 예비소결하는 단계와, 상기 캡슐을 진공배기하고 가열하며 탈가스시키는 동안 상기 예비소결 단계에서 형성된 다수의 예비소결체를 캡슐에 봉입하는 단계와, Cu의 융점과 그 융점보다 200℃ 더 높은 온도로 상기 진공봉인된 캡슐을 열간 등압 압축성형 처리함으로써 상기 예비소결체가 액상 소결되고 그 소결체의 Cu 성분이 용해되어 용해된 Cu의 일부가 상기 소결체의 표면상에 스며나오게 하는 단계와, 상기 캡슐을 상기 소결체로부터 분리하는 단계와, 전극을 형성하기 위하여 상기의 각 소결체를 가공하는 단계를 포함하는 것을 특징으로 하는 진공차단기용 전극의 제조법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870009268A 1986-09-03 1987-08-25 진공차단기용 전극의 제조법 KR920003464B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP61205976A JPS6362122A (ja) 1986-09-03 1986-09-03 真空遮断器用電極の製造法
JP86-205976 1986-09-03
JP205976 1986-09-03

Publications (2)

Publication Number Publication Date
KR880004515A true KR880004515A (ko) 1988-06-04
KR920003464B1 KR920003464B1 (ko) 1992-05-01

Family

ID=16515831

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870009268A KR920003464B1 (ko) 1986-09-03 1987-08-25 진공차단기용 전극의 제조법

Country Status (5)

Country Link
US (1) US4836978A (ko)
JP (1) JPS6362122A (ko)
KR (1) KR920003464B1 (ko)
DE (1) DE3729033A1 (ko)
HU (1) HU196529B (ko)

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US4810289A (en) * 1988-04-04 1989-03-07 Westinghouse Electric Corp. Hot isostatic pressing of high performance electrical components
EP0480922B1 (de) * 1989-05-31 1994-01-05 Siemens Aktiengesellschaft VERFAHREN ZUM HERSTELLEN VON CuCr-KONTAKTSTÜCKEN FÜR VAKUUMSCHALTER
US4954170A (en) * 1989-06-30 1990-09-04 Westinghouse Electric Corp. Methods of making high performance compacts and products
CH681516A5 (ko) * 1989-09-13 1993-04-15 Asea Brown Boveri
JP2705998B2 (ja) * 1990-08-02 1998-01-28 株式会社明電舎 電気接点材料の製造方法
US5352404A (en) * 1991-10-25 1994-10-04 Kabushiki Kaisha Meidensha Process for forming contact material including the step of preparing chromium with an oxygen content substantially reduced to less than 0.1 wt. %
US5279787A (en) * 1992-04-29 1994-01-18 Oltrogge Victor C High density projectile and method of making same from a mixture of low density and high density metal powders
DE4234004C1 (de) * 1992-10-09 1994-02-10 Mtu Muenchen Gmbh Verfahren zur Herstellung von Blechen oder Keramikplatten
EP0622816B1 (en) * 1993-04-30 1998-07-22 Kabushiki Kaisha Meidensha Electrode and process for forming an electrode material
TW265452B (ko) * 1994-04-11 1995-12-11 Hitachi Seisakusyo Kk
GB9501645D0 (en) * 1995-01-27 1995-03-15 Atomic Energy Authority Uk The manufacture of composite materials
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DE19627956A1 (de) * 1996-07-11 1998-01-15 Abb Patent Gmbh Verfahren zur Herstellung eines elektrischen Kontaktes für eine Vakuumschaltkammer
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DE19933111A1 (de) * 1999-07-15 2001-01-18 Abb Patent Gmbh Vakuumkammer und Verfahren zur Herstellung der Vakuumkammer
JP4759987B2 (ja) * 2004-11-15 2011-08-31 株式会社日立製作所 電極および電気接点とその製法
EP1997574A1 (en) * 2007-06-01 2008-12-03 ABB Technology AG Method for production of a contact piece for a switchgear assembly, as well as a contact piece itself
CN102189261A (zh) * 2011-05-30 2011-09-21 华中科技大学 一种多孔制件的致密化方法
WO2015133263A1 (ja) 2014-03-04 2015-09-11 株式会社明電舎 電極材料の製造方法
EP3109883B1 (en) 2014-03-04 2019-07-31 Meidensha Corporation Electrode material
JP5880789B1 (ja) 2014-03-04 2016-03-09 株式会社明電舎 固溶体粒子を成形した成形体にＣｕを溶浸した複合金属
JP5920408B2 (ja) * 2014-06-16 2016-05-18 株式会社明電舎 電極材料の製造方法
JP6015725B2 (ja) * 2014-09-11 2016-10-26 株式会社明電舎 電極材料の製造方法
DE102018216493A1 (de) * 2018-09-26 2020-03-26 Siemens Aktiengesellschaft Pulver-Mischung zum Herstellen eines elektrischen Kontakt-Werkstoffs, Verfahren zum Herstellen des elektrischen Kontakt-Werkstoffs unter Verwendung der Pulver-Mischung, elektrischer Kontakt-Werkstoff und Verwendung des elektrischen Kontakt-Werkstoffs
CN110625126A (zh) * 2019-10-14 2019-12-31 中铝洛阳铜加工有限公司 一种高导电高耐热弥散无氧铜制备方法
CN114628178B (zh) * 2022-03-16 2024-03-19 桂林金格电工电子材料科技有限公司 一种铜铬触头自耗电极的制备方法

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JPS6274003A (ja) * 1985-09-26 1987-04-04 Nippon Kokan Kk <Nkk> 圧粉体の焼結方法

Also Published As

Publication number Publication date
JPS6362122A (ja) 1988-03-18
DE3729033C2 (ko) 1990-12-20
HU196529B (en) 1988-11-28
HUT44873A (en) 1988-04-28
JPH056780B2 (ko) 1993-01-27
DE3729033A1 (de) 1988-03-10
US4836978A (en) 1989-06-06
KR920003464B1 (ko) 1992-05-01

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