大螺焊管粗丝CO_2气体保护高速预焊的工艺试验

• 机 构: 大连工矿车辆厂,
• 出 处: 焊接通讯
• 发表日期: 1977年02期
• 关键词: 气体保护 CO_2 焊管生产 工艺试验 制管机 攻关试验 熔敷系数 伸出长度 焊接速度 缝焊

为了提高制造大螺焊管生产率,使制管机的生产率达20万吨/年,实现卷管成型的高速预焊是个关键,要求对厚19mm钢板,焊速达4米/分,并不需清渣。为此,我们遵照部局的指示和厂党委的决定,与西安重型机械研究所和哈尔滨焊接研究所的同志们一起,用CO_2气体保护焊的方法,进行了川沪大直径管线高速预焊可能性的攻关试验。

In order to improve the productivity of manufacturing large screw-welded pipe and make the production rate of the pipe-making machine up to 200,000 tons / year, it is a key to realize the high-speed pre-welding of the coiled tube forming. . To this end, we follow the instructions of the ministry and the decision of the factory party committees, together with the comrades of Xi’an Heavy Machinery Research Institute and Harbin Welding Research Institute, using CO 2 gas shielded welding method, carried out high-speed pre-welding of Sichuan-Shanghai large diameter pipe possibilities The key test.