lfp325324 发表于 2010-4-27 20:34:48

pit corrosion on the teeth after carbonization and quenching

our gears and shafts always exist the pit corrosion on its teeth after quenching and tempering.this phenomenon generally occur near the top of teeth. the IG0depth meet the requirement . who can tell me what will cause this case happen?

察哈尔汗 发表于 2010-4-28 22:14:47

楼主能用中文吗?
求助贴怎么也整成英文的了.
http://www.cnrcl.com/heat-treatment-papers/39.html
http://www.rclbbs.com/viewthread.php?tid=14418&highlight=%C2%E9%B5%E3
http://www.rclbbs.com/viewthread.php?tid=8950&highlight=%C2%E9%B5%E3
http://www.rclbbs.com/viewthread.php?tid=18627&highlight=%C2%E9%B5%E3

温庆远 发表于 2010-4-29 11:27:08

前处理工件表面不干净

丹尼尔 发表于 2010-5-3 19:33:17

本帖最后由 丹尼尔 于 2010-5-4 10:08 编辑

会不会是淬火后，没清洗干净就回火造成？

lfp325324 发表于 2010-5-10 20:45:20

thank you for you help.
through we checking, the main reason is the pre-heat tresatment cleanliness .
页: [1]
查看完整版本: pit corrosion on the teeth after carbonization and quenching