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随着我国复关的日益临近,要求机电产品的内在质量和外观质量必须达到国际标准,才能在国际市场竞争中立于不败之地。钢铁零件经发黑后光泽美观,有良好防锈作用,消除淬火内应力,起到补充回火作用。钢铁零件发黑处理成本低、材料来源广、投资少、见效快、生产量大、生产效率高、工艺设备简单、易上马,在机电产品、五金和工量具上应用广泛。
With the retrenchment of our country approaching, it is necessary to meet the international standards for the intrinsic quality and appearance quality of the electromechanical products to remain invincible in the international market competition. After the black iron parts shiny beautiful appearance, a good anti-rust effect, to eliminate quenching stress, play a supplementary role of tempering. Black parts of steel processing costs low, wide source of raw materials, less investment, quick, large production, high production efficiency, process equipment is simple, easy to start, widely used in mechanical and electrical products, hardware and measuring tools.