| 摘要 |
PURPOSE:To weld copper to iron or steel easily and securely without inducing hot cracking or the like by using a nickel as a welding material. CONSTITUTION:Copper and mild steel 2 are welded directly by using nickel 3. The welding may be any among arc welding with covered electrode, MIG welding and TIG welding, by which the nickel is solutionized to both of the copper and the iron or steel and the welding is accomplished extremely satisfactorily without requiring highly advanced welding techniques. If the copper 1 is welded to the steel 2 by the nickel 3 after the nickel is underlaid 4 in the groove of the copper 1, the easier welding is made possible. |
