| 摘要 |
A can body welder for welding the overlapped portion of a can body by passing said portion between upper and lower electrode rolls (1,2), is provided with a cooling means, for example passages for flow of cooling liquid or a nozzle for blowing cooling gas, for keeping the temperature of the tip portion (8) of a forward guide part (37), while welding, at a temperature at which the surface protective layer of the portion of the can body which comes in contact with and slides along said tip portion cannot be damaged. <IMAGE> |
