Ishihara Chemical Co., Ltd.

Kawasaki Steel Corporation

Tadao Komatsu

Tadashi Nakajima

Noboru Nishiyama

Seiichiro Miyata

Shosaburo Nakano

Takaro Matsumoto

Katsuaki Nakatsuji

The invention provides composites made from a carbon-based material and a meallic material by joining them together by means of a brazing filler metal which is an alloy comprising, as essential components thereof, at least one element selected from among vanadium, niobium, titanium, zirconium and silicon and at least one element selected from among copper, silver, nickel and aluminum as well as welding nozzles made by joining a ring made of a carbon-based material to the tip of a metal nozzle using said brazing filler metal.

Composites made of carbon-based and metallic materials

The invention provides a composition for preventing the formation of scales in resistance welding, the composition containing as the active component a reaction product prepared by reacting 1 mole of tetraethyl silicate and about 0.5 to about 1.5 moles of water, and a composition for preventing the formation of scales in arc welding, the composition containing as the active component a reaction product prepared by reacting 1 mole of tetraethyl silicate, about 1 to about 30 moles of triethyl borate and about 0.5 to about 1.5 moles of water.

Composition for preventing formation of scales in welding

In lap joint welding of galvanized sheets, the occurence of blowhole and pit is prevented by applying a blowhole.multidot.pit preventing agent comprising a phosphorus compound as an effective ingredient prior to the arc-welding.

Blowhole.multidot.pit preventing agent and arc-welding method using the

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Akashi, Japan

Tadao Komatsu