一些。

加熱操作第二個關鍵是盡量削減氧化皮數量。特別是在熱揉捏肘
，16Mn直縫鋼管從東西壽數和揉捏管材的表麵質量動身，懇求愈加嚴厲。

在16Mnzhifenggangguandechuchanguochengzhong，youyushouyaojiagongshizairezhuangtaixiajinxingde，gujiarecaozuoshijueyizhipinzhiliangfeichangzhongyaodegongxu。rureyongdeluzi，yijutamendexiaoguo
，fenweijiareluhezaijiareluliangzhong;前者用於將坯料從常溫加熱到加工溫度;後者用於在加工過程中將坯料再加熱到必需的加工溫度。

加熱不妥將成為在管坯內表麵或許外表麵上呈現裂紋
、折疊及偏疼等廢品的緣由。

jiareludefangshiyouxuduozhong，danshouyaoyunyongdeshihuanxingjiarelu。zhezhongjiarelujuyouhuanxingdeludi
，takehuanmandizhuanbian
，piliaocongrukouchuyanzheludidezhijingfangxiangzhuangru，fanzhuanyiyongdaochukouchuzhidejiukejiarehejunredaosuoguizewendudeyizhongluzi。zhezhongjiarecaozuodeguanjianzaiyujiangpiliaojunyunjiaredaoshiyujiagongdewendu。youyuchuankongduizhiliangyingxianghenda，yejiushishuo，chuankongjiagongshidewendushiyingxiangzhiliangdezhongyaotiaojian
，suoyiyibanyaoduichuankongjiagongshidepiliaowendujinxingcaokong。