FIELD: metallurgy.
SUBSTANCE: invention relates namely to antifriction materials obtained by powder metallurgy, in particular to iron-based composite materials, and used for the manufacture of sleeves for sliding bearings and sliding electrical contacts. The iron-based composite antifriction material consists of a sintered porous iron matrix impregnated with a lead alloy. There is a diffusion chromium coating with a thickness of 0.02-0.1 mm on the surface of the matrix, and the porosity of the iron matrix is 15-35%.
EFFECT: increased hardness and wear resistance of the surface layer of the sintered matrix.
1 cl, 1 dwg, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
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| FRICTION MATERIAL COMPOSITE FOR FRICTION CLUTCH OF SWITCH ACTUATOR | 2016 |
|
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| LEAD-BASED MATRIX ALLOY FOR PRODUCTION OF COMPOSITE MATERIALS BY IMPREGNATION | 2014 |
|
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| COMPOSITE MATERIAL FOR FRICTION CLUTCH OF SWITCH ELECTRIC DRIVE | 2021 |
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| IRON-BASED COPPER-CONTAINING SINTERED ARTICLE AND METHOD OF ITS PRODUCTION | 2002 |
|
RU2280706C2 |
