FIELD: powder metallurgy, namely sintered copper base electric contact materials.
SUBSTANCE: material may be used for making electric contacts of low-voltage electric apparatuses for switching circuits of direct or alternating currents less than 300 A. Sintered electric-contact copper-base material is produced of mixture containing ultra-dispersed powder of zinc oxide with fraction size no more than 0.006 micrometers and copper powder clad with titanium nitride at next relation of ingredients, mass %: titanium nitride, 1 -4; zinc oxide, 1 - 5: copper, the balance.
EFFECT: lowered wear degree of switching, reduced oxidation degree, improved operational reliability and increased useful life period.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COPPER-BASE SINTERED ELECTROCONTACT MATERIAL | 2000 |
|
RU2208654C2 |
| SINTERED ELECTRO-CONTACT MATERIAL ON BASE OF COPPER | 2010 |
|
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| SINTERED ELECTROCONTACT MATERIAL ON THE BASE OF COPPER | 1993 |
|
RU2073736C1 |
| COPPER-BASE CAKED MATERIAL FOR ELECTRIC CONTACTS AND A METHOD OF ITS MAKING | 1994 |
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RU2083713C1 |
| MATERIAL FOR COPPER-BASED BREAKAWAY ELECTRIC CONTACTS | 1997 |
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RU2122039C1 |
