论文部分内容阅读
采用熔化极半自动氩弧焊工艺焊接了两个大厚度紫铜压力容器,其结构和尺寸见图1,端法兰厚20毫米、外径450毫米;三个法兰颈的厚度都在15毫米以上。容器厚度分别为20和6毫米,耐压分别为22.5和11公斤/厘米~2。除了两端法兰是黄铜外,其余是紫铜。三个侧面通孔,采用先焊接后镗孔的工艺。 1.焊接设备主要有送丝机构、焊枪、电源三部分组成。采用NBCl—500—1型送丝机;500安手枪式焊枪;为提高保护效果,改装原气路,使保护气进入送丝管道;将AB—500型旋转式直流电焊机的陡降外特性改为近似平硬外特性。
The use of melting semi-automatic welding process of welding two large-thickness copper pressure vessel, the structure and size shown in Figure 1, the end flange thickness of 20 mm, an outer diameter of 450 mm; three flange neck thickness of 15 mm or more . Container thickness of 20 and 6 mm, respectively, with a withstand voltage of 22.5 and 11 kg / cm ~ 2. In addition to both ends of the flange is brass, the rest is copper. Three side through-hole, using the first after welding boring process. 1. Welding equipment mainly wire feeding agencies, welding torch, power supply composed of three parts. The use of NBCl-500-1-type wire feeder; 500 A pistol gun; in order to improve the protection effect, the conversion of the original gas, so that the protective gas into the wire feeding pipe; AB-500 Rotary DC welder steep drop outside the characteristics Change to similar flat hard outer features.