Welding backing of CO2 vertical electrogas automatic one-side welding, and method for using same

Abstract

A backing block is designed based on welding metallurgy characteristics of CO2 vertical electrogas automatic welding and demands of CO2 vertical electrogas automatic one-side welding on performances of backings. The backing comprises one or a plurality of backing blocks, and the backing blocks comprise raw material components of alumina, quartz, talcum, feldspar, porcelain clay, Suzhou black earth, white mud and titanium dioxide, wherein the weight ratio of each raw material component is: 20 to 40 of alumina, 10 to 20 of quartz, 10 to 15 of talcum, 5 to 10 of feldspar, 2 to 16 of porcelain clay, 10 to 20 of Suzhou black earth, 5 to 10 of white mud and 3 to 5 of titanium dioxide. The welding backing of the invention optimizes the welding metallurgy process of CO2 vertical electrogas automatic one-side welding, and provides better weld quality and welding performance than that of CO2 vertical electrogas automatic welding, so that the welding procedures are reduced, the welding materials are saved, the welding production efficiency is improved and, more importantly, the weld quality is enhanced.

Description

technical field [0001] The invention belongs to the field of arc welding and welding technology, and in particular relates to a vertical gas-electric automatic single-side welding welding technology. Background technique [0002] CO 2 The vertical gas-electric automatic single-side welding welding method is adopted in the hull construction, especially in the large closing stage of the hull structure on the berth, which not only has high welding efficiency, but also has excellent quality. For the welded joints of the vertical butt joints of the 12~28mm thick steel plate structure, only one pass can complete the welding work of the front and back welds of the welded joints, and the welds are beautifully formed. CO 2 Lixiang gas-electric automatic single-sided welding is a more, faster, better and less expensive welding technology. To complete the CO 2 The welding process of vertical gas-electric automatic single-side welding must be equipped with a welding backing that mee...

AI Technical Summary

Problems solved by technology

To complete the CO 2 The welding process of vertical gas-electric automatic single-side welding must be equipped with a welding backing suitable for the welding process requirements. Without it, it is impossible to form a more, faster, better, and economical welding technology, and only the welding technology of double-sided welding can be used

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