SU464094A3 - The method of obtaining dispersion metallokosnogo electrocontact material - Google Patents

The method of obtaining dispersion metallokosnogo electrocontact material

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Publication number
SU464094A3
SU464094A3 SU721773327A SU1773327A SU464094A3 SU 464094 A3 SU464094 A3 SU 464094A3 SU 721773327 A SU721773327 A SU 721773327A SU 1773327 A SU1773327 A SU 1773327A SU 464094 A3 SU464094 A3 SU 464094A3
Authority
SU
USSR - Soviet Union
Prior art keywords
metallokosnogo
obtaining dispersion
alloy
electrocontact
electrocontact material
Prior art date
Application number
SU721773327A
Other languages
Russian (ru)
Inventor
Кунерт Вальтер
Шайбе Хорст
Тенцлер Хартмут
Original Assignee
Феб Бергбау-Унд Фюттенкомбинат "Альберт Функ" (Инопредприятие)
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.)
Filing date
Publication date
Application filed by Феб Бергбау-Унд Фюттенкомбинат "Альберт Функ" (Инопредприятие) filed Critical Феб Бергбау-Унд Фюттенкомбинат "Альберт Функ" (Инопредприятие)
Application granted granted Critical
Publication of SU464094A3 publication Critical patent/SU464094A3/en

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Classifications

    • 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
    • C22C1/10—Alloys containing non-metals
    • C22C1/1078—Alloys containing non-metals by internal oxidation of material in solid state
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0237—Composite material having a noble metal as the basic material and containing oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Switches (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Description

33

Пример 4. Полученный путем распылени  сплава порошок серебра с 30 вес. % паллади  и 2 вес. % .маргапца прессуют при давлении 3 т/см в изделие диаметром 5 мм и высотой 1,5 мм с припрессовыванием серебр нопалладиевой .подложки толщиной 0,1 мм. Изделие спекают при 980°С в течение 1 ч и парциальном давлении кислорода 10 ати. После спекани  изделие калибруют до заданного размера при давлении 8 т/см.Example 4. Silver powder obtained by spraying an alloy with 30 wt. % palladium and 2 wt. %. Margapz is pressed at a pressure of 3 t / cm into a product with a diameter of 5 mm and a height of 1.5 mm with silver nopalladium pad pressed 0.1 mm thick. The product is sintered at 980 ° C for 1 h and a partial pressure of oxygen of 10 MPa. After sintering, the product is calibrated to a specified size at a pressure of 8 t / cm.

Предложенный способ позвол ет получать дисперсионный металл-окисный материал с особо тонкими и равномерно распределенными частицами окисла, вследствие чего значительно уменьшаетс  эрозионный износ электрических контактов, а также их склонность к свариванию в процессе эксплуатации, по сравнению с контактными элементами, полученными известным способом. Кроме того, осуществление внутреннего окислени  порошка сплава в процессе спекани  предварительно спрессованной заготовки с образованием дисперсных окислов неблагородных металлов при высоком парциальном давлении кислорода позвол ет упростить технологию получени  материалов данного типа и интенсифицировать процесс окислени  неблагородных элементов, вход щих в состав сплава.The proposed method allows to obtain a dispersion metal-oxide material with extremely thin and evenly distributed oxide particles, as a result of which the erosive wear of electrical contacts is significantly reduced, as well as their tendency to weld during operation, compared with contact elements obtained in a known manner. In addition, the implementation of the internal oxidation of the alloy powder in the process of sintering the precompressed billet with the formation of dispersed oxides of base metals under high oxygen partial pressure simplifies the technology for producing materials of this type and intensifies the oxidation of the base elements that make up the alloy.

Предмет изобретени Subject invention

1. Способ получени  дисперсионного металл-окисного электроконтактного материала , включающий прессование порошка на основе благорОлТ.ного металла, содержащего легирующий металл, и последующее спекание1. A method of producing a dispersion metal-oxide contact material, comprising pressing a powder based on a noble metal containing a alloying metal, and subsequent sintering

заготовки в окислительной среде, отличающийс  тем, что, с целью улучшени  физико-механических свойств получаемых изделий , в качестве исходного порошка берут сплав одного или нескольких благородныхbillet in an oxidizing environment, characterized in that, in order to improve the physicomechanical properties of the products obtained, an alloy of one or several noble

металлов с одним или несколькими неблагородными металлами, порошок прессуют при давлении 1-5 т/см, полученную заготовку окисл ют и спекают при парциальном давлении кислорода 1-10 ати, а затем спеченноеmetals with one or several non-precious metals, the powder is pressed at a pressure of 1–5 t / cm, the resulting billet is oxidized and sintered at a partial pressure of oxygen of 1–10 atm, and then sintered

изделие калибруют при давлении 6-12 т/см. 2. Способ пол. 1 отличаюшийс  тем, что спекание заготовки из порошка сплава осуществл ют при температуре, ниже температуры солидуса сплава, а после полногоthe product is calibrated at a pressure of 6-12 t / cm. 2. The way the floor. 1 characterized in that the sintering of the billet of alloy powder is carried out at a temperature below the solidus temperature of the alloy, and after complete

окислени  неблагородного металла - ниже температуры солидуса благородного металла , составл ющего основу сплава.oxidation of the base metal — below the solidus temperature of the noble metal constituting the base alloy.

SU721773327A 1971-04-13 1972-04-14 The method of obtaining dispersion metallokosnogo electrocontact material SU464094A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15439571A DD102319A1 (en) 1971-04-13 1971-04-13

Publications (1)

Publication Number Publication Date
SU464094A3 true SU464094A3 (en) 1975-03-15

Family

ID=5483701

Family Applications (1)

Application Number Title Priority Date Filing Date
SU721773327A SU464094A3 (en) 1971-04-13 1972-04-14 The method of obtaining dispersion metallokosnogo electrocontact material

Country Status (5)

Country Link
DD (1) DD102319A1 (en)
DE (1) DE2215686A1 (en)
FR (1) FR2133764A1 (en)
HU (1) HU164003B (en)
SU (1) SU464094A3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030751A1 (en) * 1980-08-14 1982-03-18 Degussa Ag, 6000 Frankfurt METHOD FOR PRODUCING SEMI-PRODUCTS FROM DISPERSION-HARDENED PLATINUM
FR2511041B1 (en) * 1981-08-07 1986-12-05 Louyot Comptoir Lyon Alemand SILVER AND NICKEL OXIDE MATERIALS FOR USE IN MAKING ELECTRICAL CONTACTS AND METHODS OF MAKING SAME
US4941918A (en) * 1987-12-12 1990-07-17 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same
DE60107578T2 (en) * 2001-07-18 2005-12-22 Nec Schott Components Corp., Koka THERMAL FUSE

Also Published As

Publication number Publication date
HU164003B (en) 1973-12-28
DD102319A1 (en) 1973-12-12
FR2133764A1 (en) 1972-12-01
DE2215686A1 (en) 1972-12-07

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