Method for welding hard metal
AssigneeIshikawajima-Harima Jukogyo Kabushiki Kaisha
InventorsYukio Shinozaki, Katsutoshi Naruse, Teruo Harada, Sadao Ohishibashi, Susumu Yamaya, Akira Fukawa
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Abstract
Disclosed is a method for welding wear-resisting hard metals directly to iron base members which are slide or wear members of machinery. Hard metals comprising a tungsten carbide and a binder consisting of 15 to 30% by weight of Ni and/or Co is employed as said hard metals. A Ni alloy metal containing no Cr is used as a filler metal.
Claims2
A method of welding a hard metal member to an iron base metal member wherein said hard metal member is made of a hard metal comprising mainly tungsten carbides and 15 to 30% by weight of a binder consisting of Ni and/or Co, said hard metal member being directly welded to said iron base metal member with a nickel alloy filler metal containing no Cr, and having more than 40% by weight of Ni.
Dependencies are inferred from the claim text.