海量資源,盡在掌握
 表1-10常用金屬材料線膨脹系數(shù)α×10-6材料溫度范圍(℃)2020~10020~20020~30020~40020~600工程用銅紫銅黃銅錫青銅鋁青銅 16.6~17.117.217.817.617.617.1~17.217.518.817.917.917.617.920.918.219.218~18.118.6碳鋼鉻鋼40CrSi30CrMnSiA 10.6~12.211.211.71111.3~ (共 411 字) [閱讀本文] >>