发明名称 |
MIG WELDING METHOD FOR HIGH MN NONMAGNETIC STEELS FOR VERY LOW TEMPERATURE |
摘要 |
PURPOSE:To prevent defects due to a blowhole, etc., and surface oxidation by subjecting high Mn nonmagnetic steels for very low temperature to MIG welding under conditions to satisfy the inequality by using a specified welding wire and shielding gas. CONSTITUTION:The high Mn nonmagnetic steels for very low temperature are subjected to MIG welding under the conditions to satisfy the inequality as the heat gain by using the common metal-based welding wire and mixed gas consisting of <=2.20% O2, >=20% He and the balance Ar as the shielding gas wherein J and T denote the heat gain (KJ/cm) and the thickness (mm) of the high Mn nonmagnetic steels for very lower temperature, respectively. |
申请公布号 |
JPH03193271(A) |
申请公布日期 |
1991.08.23 |
申请号 |
JP19890334038 |
申请日期 |
1989.12.22 |
申请人 |
KOBE KOTOBUKI TEKKO KK;KOBE STEEL LTD |
发明人 |
KAKIYAMA KAZUMI;TONE SHOJI;IKEDA SOICHI |
分类号 |
B23K9/173;B23K9/16;B23K9/23;B23K103/04 |
主分类号 |
B23K9/173 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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