伟大的无产阶级文化大革命,极大地促进了我国工业的迅猛发展,我厂生产的产品也有所改进。原来采用CO_2焊接的高压容器,为了减轻重量,将壁厚由1.5毫米改为1毫米,这样对CO_2焊就提出了更高的要求。由于壁厚减薄,在生产中,时常出现焊穿及未焊透的疵病,使产品质量大大降低。 The great great proletarian cultural revolution has greatly promoted the rapid development of our country’s industry and the products our factory produces have also been improved. The original CO_2 welding pressure vessel, in order to reduce weight, the wall thickness from 1.5 mm to 1 mm, so the CO_2 welding put forward higher requirements. Due to the thinning of the wall thickness, in production, welding defects and imperfections often occur, which greatly reduces the product quality.