摘要
在工期紧张无法进行焊后热处理的情况下,通过焊接试验,制定合适的焊接工艺,将3.5Ni低温钢管焊接线能量控制在18kJ/cm以内,并采用焊后氩弧重熔工艺,控制焊缝粗晶组织的出现,从而保证接头的低温冲击韧性。
The post weld heat treatment can not be performed due to the tight construction schedule. After welding tested and established the practical welding procedure, we control the welding line energy of the 3.5 Ni cryogenic steel pipe within 18KJ/cm, and performed the TIG re-fusion process after welding to avoid the growth of grain structure in welds, and ensure the low temperature impact ductility of the welds.
出处
《机电产品开发与创新》
2005年第2期25-27,共3页
Development & Innovation of Machinery & Electrical Products
