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我厂在仪表零件3J_(51)或3J_(53)等弹性元件加工过程中,经常由干材料本身的质量或热处理的真空度不好等原因,在元件表面形成一层致密而均匀极薄的氧化膜,这时零件不显不锈钢零件的本色,而是呈黑色、棕黑色或五彩色。这不仅影响了零件的外观,而且影响到零件的焊接性能,使整机性能降低,更为严重的是由于氧化膜的存在,使部分需要焊接的零件造成假焊或根本无法焊接。严重地影响整机的质量指标。为了去除膜层以
I plant in the instrument parts 3J_ (51) or 3J_ (53) and other elastic components during processing, often by the quality of the dry material itself or heat treatment of the vacuum is not good and other reasons, the surface of the element to form a dense and even ultra-thin Oxide film, then the parts do not show the true nature of stainless steel parts, but was black, brown or colored. This not only affects the appearance of the parts, but also affect the parts of the welding performance, so that machine performance degradation, more serious is due to the presence of oxide film, so that some of the parts need to be welded caused false welding or simply can not be welded. Seriously affect the quality of the machine. In order to remove the film to