WELDING FLUX FOR NICKEL-SILICON-TITANIUM-COPPER-MOLYBDENUM ALLOYS

摘要

1,159,839. Welding by fusion. INTERNATIONAL NICKEL Ltd. 9 May, 1968 [23 May, 1967], No. 23940/67. Heading B3R. [Also in Division C7] Workpieces of the following alloy:- 7-11% .. .. .. .. .. Si 1-5% .. .. .. .. .. Ti 1-4% .. .. .. .. .. Cu 1-4% .. .. .. .. .. Mo balance .. .. .. .. Ni the per cent Si + 0.5 x (per cent Ti) being 9À5-11À5 are oxy-acetylene flame welded using the following flux composition and a filler rod of the following alloy:- 7-11% .. .. .. .. .. Si 1À1-6% Ti being 1À1 x ( per cent Ti in workpieces Œ 0.5) 1-4% .. .. .. .. .. Cu 1-4% .. .. .. .. .. Mo balance .. .. .. .. Ni the workpieces and the rod being preheated. The rod and workpieces are preheated to at least 600‹ C. (e.g., 900‹ C.) and the hot rod is rotated in the flux and so coated along its whole length. The rod is cast or made by powder metallurgical methods. The flux must be kept in anhydrous condition.