Electric heating – Metal heating – By arc
Patent
1981-10-16
1983-08-02
Kucia, R. R.
Electric heating
Metal heating
By arc
75128R, 21914522, 2191461, B23K 3530
Patent
active
043968228
ABSTRACT:
A welding wire for automatic arc welding, which is particularly suitable for use in build-up welding operation for the purpose of providing hard surface to a metal die. The welding wire consists of a continuous tubular metal casing and a core composition charged in the interior of the casing and comprises such amounts of Ni, Si, B, Nb and C as essential alloying elements that the deposited metal contains at least 40% of Ni, 3-8% of Si, 0.1-0.4% of B, 0.3-1.8% of Nb and 0.2-1.5% of C, all by weight. Preferably, either a practically pure Ni strip or an Fe-Ni alloy strip is used as the material of the casing, and the core composition in the form of a powder mixture contains necessary amounts of Ni, Si, B, Nb and C, optionally with the addition of a small amount of Zr. The deposited metal given by this welding wire has high wear resistance and good antifrictional property and seldom suffers from weld cracks.
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Date Hirohiko
Hirao Sumio
Kishida Katsuhiro
Kucia R. R.
Nissan Motor Co,. Ltd.
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