492汽油机铝瓦盖过时效无损分选

NONDESTRUCTIVE SORTING OF OVER-AGEING BEARING CAP OF 492 ENGINE

铝合金是对温度敏感的材料,492汽油机瓦盖(LY11)曾在热处理过程中因加热温度控制不当,影响工件加工性能而变成废品。