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氢气扩散纯化器系列是我厂主要产品之一,其中钯合金膜盒的焊接和钯薄壁管的封口焊接工艺直接影响到产品质量的好坏,为此,我们于去年试制了一台微束等离子弧焊机,通过生产实践,取得了一些经验体会。微束等离子弧焊接是一项新的焊接工艺,它对于高熔点金属、金属薄膜、金属细丝的焊接尤显成效。由于微束等离子弧呈现为一束能量密度很大的“针状”弧柱,因此具有焊接速度快、熔池均匀、焊缝狭窄、光亮牢固、热影响区小、变形小以及机械性能高等特点。一、气体的选择和应用离子气体采用瓶装的氩气,因为氩气电离度较高,价格也比较经济。保护气体采用氩气加氢气10％,其中保护气中加氢是一个很重要的因素,由
Hydrogen diffusion purifier series is one of the main products of our factory, among them the welding of the palladium alloy membrane box and the sealing welding process of the thin-walled tube of the palladium have a direct impact on the quality of the product. Therefore, we made a microbeam last year Plasma arc welding machine, through production practices, made some experience. Micro-beam plasma arc welding is a new welding process, which is especially effective for high melting point metal, metal film, metal wire welding. As the micro-plasma arc appears as a bundle of “needle-shaped” arc columns with great energy density, it has the advantages of fast welding speed, uniform weld pool, narrow weld line, light and strong heat-affected zone, small deformation and high mechanical properties . First, the choice of gas and application of argon gas bottle of argon, because of higher ionization of argon, the price is more economical. Argon hydrogen gas used to protect the gas 10%, of which hydrogen gas is a protective gas is a very important factor, from