对一种用于汽车和通讯行业的新型预磷化镀锌钢板的粉末喷涂前处理工艺进行了研究，通过晶相、膜质量及盐雾试验，对预磷化板的现有工艺进行了改进。
The effects of pretreatment for powder coating on the galvanized steel sheet were investigated through tests of cryslalography, film weight and salt spray test, and the existing process was improved.
提出了一种适用于各种金属板贴塑的前处理工艺，着重介绍了脱脂和磷化的工艺配方、特点及槽液的维护。
Pretreatment process for PVC laminating on different thin metal sheets was introduced. Formula, strengths and maintenance of degreasing and phosphating process were emphasized.
通过对铝合金板材进行的化学转化膜及膜结构的研究试验，对比了铝合金板与冷轧钢板磷化的异同点。
The difference of phosphate coating between aluminum alloy sheet and cold rolled sheet is compared by the test of chemical converted film and its structure on the surface of aluminum alloy sheet.
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