钛及钛合金管氩弧焊焊接保护罩设计

Design of Argon Arc Welding Protective Cover for Titanium and Titanium Alloy Pipelines

钛及钛合金管路在实施氩弧焊焊接时,在一定温度下易吸入空气中的氧、氮、氢等元素,导致焊缝处塑性和韧性降低。研究了钛及钛合金材质本身的特点和焊接特点,设计了一种焊接保护罩,可起到了稳定焊接保护气体气流组织、隔断施焊部位空气和降温的作用,从而保证了钛及钛合金管的焊接质量。

Titanium and titanium alloy pipelines are easy to inhale oxygen,nitrogen,hydrogen and other elements in the air at a certain temperature during argon arc welding,resulting in a decrease in plasticity and toughness at the weld.The characteristics of the titanium and titanium alloy materials and the welding characteristics are studied.A special welding protective cover is designed to stabilize the welding gas flow structure,block the air and cool the welding parts,thus ensuring the welding quality of titanium and titanium alloy pipelines.