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qt500-7是什么材质
更新时间: 2020-12-09 10:54:18  

qt500-7是一种铁素体型的球墨铸铁,被切削性比较好,强度和韧性属于中等。在低温状态下,耐蚀性和抗温度急变性是比较好的,而且韧性会转变成脆性。球墨铸铁的本质是铁,但是有钢的性能,具有很好的延展性和防腐性。由于它的综合性能和钢比较类似,所以同样可以制作一些受力复杂,而且对强度和耐磨性要求比较高的零部件。比如,内燃机的机油泵齿轮或者是水轮机的阀门等,也可以用做市政给排水的管道。

关键词: qt500 什么 材质

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