回复v3208000发表于:2020/3/22 13:24:15悬赏金额:
4积分 状态:
未解决
[img=,690,517]https://ng1.17img.cn/bbsfiles/images/2017/03/201703221329_02_3208000_3.jpg[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2017/03/201703221329_01_3208000_3.jpg[/img][img=,750,562]https://ng1.17img.cn/bbsfiles/images/2017/10/2017032213204909_01_0_3.jpg[/img][img=,750,562]https://ng1.17img.cn/bbsfiles/images/2017/10/2017032213203285_01_3208000_3.jpg[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2017/03/201703221330_01_3208000_3.jpg[/img]
我们公司用SUS410螺丝,经过1050度氨分解气氛淬火,两次208度回火各一个半小时。在铝合金基座上安装这种螺丝一天至一周后先后断裂,请各位大神帮忙看看断口是否氢脆。最下面一张中白色物质为包试样的纸屑。