Method of brazing stainless steels
AssigneeUsui Kokusai Sangyo Kabushiki Kaisha
InventorMasayoshi Usui
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Abstract
A method of brazing a stainless steel with a stainless steel or another metal wherein, in brazing the stainless steel with a stainless steel or another metal, the stainless steel side of both opposed jointing parts is plated with copper, then a copper base-tin alloy of a melting point of 850.degree. to 1081.degree. C. is used as a brazing material and said brazing material is heated together with the jointing parts to a temperature lower than the melting point of copper in a nonoxidizing gas atmosphere such that the brazing material may be melted at said temperature. The brazed stainless steels are cooled by being quickly passed through a temperature range of 850.degree. to 600.degree. C. The bonding force of the resulting stainless steels is much higher than heretofore obtained.
Claims9
A method of brazing stainless steels comprising a step of copper-plating the stainless steel side of both jointing parts of a stainless steel and a metal, a step of heating a brazing material which is a copper base-tin alloy of a melting point of 850.degree. to 1081.degree. C. together with said both jointing parts to a temperature lower than the melting point of copper in a non-oxidizing gas atmosphere and a step of melting the brazing material at said temperature.
Dependencies are inferred from the claim text.