FIELD: powder metallurgy. SUBSTANCE: iron-base proposed material containing copper and graphite has additionally phosphorus and coal ash at the following ratio of components, wt.-% copper 6.8-22.0; graphite 5.4-19.0; phosphorus 0.1-4; coal ash 0.3-1.5, and iron the rest. Copper (1.8-12.0 wt. -%) and graphite (2.4-14.0 wt.-%) in material are in the form of granules of size 0.4-1.2 mm. EFFECT: enhanced quality of material. 1 tbl
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Authors
Dates
1995-11-27—Published
1992-05-26—Filed