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为了消除氰盐造成的三废污染,迅速改变缝纫机零件热处理生产的落后状况,中国缝纫机协会(筹)1月4—10日在上海召开了全国缝纫机“无氰热处理交流会”。 用氰盐进行氰化工艺具有加热快、渗速大、操作方便、能获得薄而硬的渗层、产品质量稳定、适用于多品种中小批量的零件热处理等优点。所以,长期以来许多缝纫机厂和零件厂都采用它来处理薄壁和形状复杂的缝纫机零件,特别是对那些经热处理后不再进行磨削加工的零件,
In order to eliminate three waste pollution caused by cyanide and quickly change the backwardness of the heat treatment production of the sewing machine parts, the China Sewing Machine Association (chips) held the national sewing machine “cyanide-free heat treatment exchange meeting” in Shanghai from January 4 to January 10. Cyanide cyanide process has the advantages of fast heating, high permeation rate, easy operation, thin and hard layer, stable product quality, suitable for heat treatment of many kinds of small and medium batch parts. Therefore, many sewing machine manufacturers and parts factories have long used it to deal with the thin-walled and complex shape of the sewing machine parts, especially for those who heat treatment is no longer grinding parts,