摘要
采用灰口铸件ＨＴ２０－４０ 的补焊工艺方法，可有效地防止裂纹的产生，使焊缝有一定的塑性和强度，并有较好的机加工性和抗裂性。
The bead welding technique of grey iron HT20\|40 is introduced.By using this processing method,the occurrence of cracks can be avoided effectively and make the weld plastic and strengthened to a certain extent and in addition improve its machinability and anti\|cracking ability.
出处
《甘肃科学学报》
1999年第4期44-46,共3页
Journal of Gansu Sciences
关键词
灰口铸铁
补焊
焊接工艺
热影响区
HT20-40
grey iron
bead welding
melting\|mixing ratio
welding technique
thermal effect zone
