由于石油炼制工业和其它工业部门的发展,要求生产各种形状的高压容器。一般情况下,容器是在疲劳载荷条件下使用的,其工作温度为100℃到-40℃和低于-40℃。因此,要求焊接接头有高的冲击韧性。焊接时,还需要专用的装夹具和通用设备。为此,建议精加工后进行人孔的焊接。容器是由两个半球和人孔组成。容器材 Due to the development of the petroleum refining industry and other industrial sectors, the production of high pressure vessels of various shapes and sizes is required. Under normal circumstances, the container is used under fatigue load conditions, the operating temperature is 100 ℃ to -40 ℃ and below -40 ℃. Therefore, the weld joint is required to have high impact toughness. When welding, also need special fixture and general equipment. For this reason, it is advisable to weld the manhole after finishing. The container is made up of two hemispheres and a manhole. Container material