Patent ID: 6030577
Filing Date: 2000-02-29
Classification: C22C,C22F,C23C

Abstract:
A method for manufacturing liners for internal combustion engines made of a hypereutectic aluminum silicon AlSi alloy comprising the steps of spray compacting an Al alloy melt to obtain starting structures, wherein the contained primary silicon Si particles have a size of from 0.5 to 20 .mu.m; maintaining the starting structures at an extrusion temperature of from about 300 to 550.degree. C.; extruding the starting structures to thick-walled pipes having a wall thickness of from 6 t 20 mm; and reducing the wall thickness of the thick-walled pipes by a hot-deformation process at temperatures of from 250 to 500.degree. C. from 1.5 to 5 mm.