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CO_2气体保护焊(以下简称CO_2焊)是一种高效节能的先进焊接技术,生产效率是手工电弧焊的1～4倍,而成本只有手工电弧焊的40～50％。因此,近年来CO_2焊的应用范围不断扩大。除了在机座、箱体梁系结构上广泛应用外,近年来还在带压气瓶、合金钢轮、铸钢补焊等方面得到应用。下面就将我厂在1986年10月,对ZG45钢大型齿辊采用CO_2焊的实例作一介绍。一、齿辊状况齿辊是由一个辊体,两个轴辊颈焊接而成。其规格为φ430×3648mm,
CO_2 gas shielded welding (hereinafter referred to as CO_2 welding) is an advanced energy-saving welding technology, the production efficiency is 1 ~ 4 times the manual arc welding, and the cost is only 40 ~ 50% of the manual arc welding. Therefore, the application range of CO_2 welding has been expanding in recent years. In addition to the machine, box beam structure widely used, in recent years still with pressure gas cylinders, alloy steel wheels, steel welding, etc. have been applied. The following will be my plant in October 1986, ZG45 steel large-scale use of CO_2 welding gear to make an introduction. First, the situation of gear roller gear is composed of a roller body, two-axis roller neck welded together. Its specifications for φ430 × 3648mm,