| 摘要 |
PURPOSE:To increase the mechanical strength of a joined part by preventing a shield gas being caught in the inserting material in case of performing a liquid phase diffusion joining of a metallic material each other by using a shield gas and inserting material. CONSTITUTION:Both metallic material 1, 2 are put into a chamber 10 by supporting them with supporter 3, 4 in case of performing the liquid phase diffusion joining of the metallic material 1, 2 of stainless steel, etc. The inside of the chamber 10 is made the inert gas atmosphere of Ar, N, He, etc. and the inserting material in <=70mum thickness of same or dissimilar quality is interposed at the joined part of both metallic materials 1, 2 as well. It is heated by the heater 9 on the outer periphery of the joined part in this state and because of the inserting material being melted at the temp. >= its liquidus line both materials 1, 2 are separated so s to cause 0.3-1.0mm gap and after holding for 5-20sec both materials 1, 2 are cooled by press-contact once again. The mechanical strength at the joined part after the soldification by cooling is increased due to the shield gas which has been enclosed in the inserting material at the time when both materials 1, 2 are separated being released.
|
