HEAT TREATMENT METHOD FOR AL-SN ALLOY LAYER COATED BY COLD SPRAY

摘要

A kind of characteristic that the method for being heat-treated the aluminum-tin alloy layer coated by a cold spraying is arranged to raising aluminum-tin alloy bearing by recrystallizing tin, is that the integrated complex on aluminum-tin alloy layer enters particulate matter. It is a kind of to pass through the method for the aluminum-tin alloy layer that a cold spraying coats the following steps are included: load one back-steel, aluminum-tin alloy layer is coated on it, into a heat-treatment furnace of the temperature in 250 to 300 degree for being heat-treated. Heating temperature is kept for a predetermined time. The steel at rear portion is cooled in heat-treatment furnace. Tin content acquisition about 10 to 30% in aluminum-tin alloy layer. The period of temperature is maintained to take about 30 to 60mins.