| 摘要 |
PURPOSE:To obtain joined parts having high quality with high efficiency by forming a composite electroless nickel plating layer contg. powder for joining on the surface of a heat resisting alloy to be joined to form a low m.p. alloy layer and subjecting the heat resisting alloy to diffusion bonding. CONSTITUTION:Fine powder for joining is mixed with an electroless nickel plating soln. and while both are agitated, the powder for joining is stuck on the fayed surface by means of nickel plating. After a composite electroless nickel plating layer 2 contg. powder 3 for joining is formed on the surface to be joined, said layer is heated in a vacuum and inert gaseous atmosphere to melt the layer 2 at the temp. lower than the m.p. of the heat resisting alloy, whereby a low m.p. alloy layer is formed. The fayed surfaces having the low m.p. alloy metal are faced to each other and are subjected to diffusion bonding, whereby the joined parts, having high quality are obtained. |
