Flux cored wire for welding

TLDR: In this paper, a weld zone having high strength without welding defects such as high-temp cracking and to make possible sure and easy welding by using a flux contg CaO and incorporating a metallic Al component into either or both of the flux and base material for a wire is obtained.

Abstract: PURPOSE: To obtain a weld zone having high strength without welding defects such as high-temp cracking and to make possible sure and easy welding by using a flux contg CaO and incorporating a metallic Al component into either or both of the flux and base material for a wire CONSTITUTION: The flux 3 is prepd by adding and mixing adequately CaO powder or Al (alloy) powder together with the CaO powder to and with a flux consisting of an ordinary compsn The flux 3 cored wire 1 for welding is constituted by filling the flux 3 into a hollow wire 2 The wire 2 consists of an Fe, Ni, Co or other alloy to be used for ordinary welding and in the case of incorporating Al therein, the Al is incorporated into a molten pool by way of a droplet and reacts with CaO thereby deoxidizing and desulfurizing powerfully the molten metal The weld zone which obviates the generation of the high temp cracking, etc and has the high strength is obtd and the sure and easy welding is made possible by the above-mentioned constitution COPYRIGHT: (C)1986,JPO&Japio