发明名称 |
Method of manufacturing a welded can body |
摘要 |
A method of manufacturing a welded can body from tinplate or a tin-iron alloy plated steel sheet comprises overlapping the opposite marginal portions of a blank of the tinplate or the tin-iron plated steel sheet to form a can body preform having an overlapping portion, applying at least to the cut edges of the marginal portions of the blank a fluxing agent promoting wetting of steel with molten tin, and electrical resistance seam welding the overlapping portion in a nonoxidizing atmosphere by employing a pair of wire electrodes each covered by a layer of metallic tin on the surface thereof facing the overlapping portion. The welded portion has improved corrosion resistance, as an extruded weld portion and a remaining cut edge surface portion thereof are covered with tin transferred from the surfaces of the wire electrodes and/or the tinplate during the welding operation.
|
申请公布号 |
US4404447(A) |
申请公布日期 |
1983.09.13 |
申请号 |
US19810252330 |
申请日期 |
1981.04.09 |
申请人 |
TOYO SEIKAN KAISHA, LIMITED |
发明人 |
KITAMURA, YOICHI;HOTTA, HISASHI;YURITA, CHIKARA;ITO, MAKOTO |
分类号 |
B23K11/06;B23K11/16;B23K11/30;(IPC1-7):B23K11/32 |
主分类号 |
B23K11/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|