METHOD FOR PRODUCING WEAR-RESISTANT SINTERED METAL COANTAINING HIGH AMOUNT OF TITANIUM CARBIDE GRAINS AND CARBON GRAINS

摘要

1352285 Sintered iron-titanium carbide CHUGAI ELECTRIC-INDUSTRY CO Ltd 18 July 1972 [28 Aug 1971] 33541/72 Heading C7D A powder mixture comprising Fe-Ti, cast iron and carbon powders is compacted and then liquid phase sintered to precipitate TiC and then cooled to precipitate fine carbon in the ferrous matrix. The powder mixture may also contain Fe Si, Fe-V, Mo, Cu, Ni and Cr, the preferred product containing 20-40% TiC and 1-4À5% free carbon. Sintering is effected at 1250‹C in a vacuum H.F. furnace. The sintered body may be heat treated quenched and tempered.