论文部分内容阅读
前言在农业机械、化工机械,汽车制造等工业部门、经常遇到很多薄板框架点联接结构。在这类结构的制造中,目前国内主要采用铆接、短段手工电弧焊、熔剂层下电铆焊和按触点焊。探用这些方法存在质量差、生产率低、成本高等问题。而二氧化碳半自动电弧点焊(以下简称 CO_2点焊)能克服以上的缺点,在这类结构制造中是一种比较理想的工艺方法。但由于没有设备,也没有人作过这方面的试验,故一直未被推广。在史无前例的无产阶级文化大革命取得节节胜利的大好形势下,我们无产阶级革命派,冲破了走资派设置的重重障碍,开
Preface In the agricultural machinery, chemical machinery, automobile manufacturing and other industrial sectors, often encounter a lot of sheet frame point connection structure. In the manufacture of such structures, the current domestic use of riveting, short-range manual arc welding, flux layer under the seam welding and by contact welding. Exploring these methods has the problems of poor quality, low productivity and high cost. Carbon dioxide semi-automatic arc spot welding (hereinafter referred to as CO_2 spot welding) can overcome the above shortcomings in the manufacture of such structures is an ideal process. However, since no equipment or no one has ever done any experiments in this area, it has not been promoted. Under the magnificent victory of the unprecedented proletarian cultural revolution, our proletarian revolutionaries broke through the obstacles set by the capitalists and opened