研制的复合脱脂剂可用于钢、铜合金及铝合金的脱脂除油。
The optimum composition, which can be used in degreasing on steel and copper and aluminium alloys, was obtained by orthogonal design.
介绍了锌合金压铸零件的前处理工序及钝化工艺，前处理工艺包括抛光、脱脂除油、活化等。
The pretreatment and passivation of zinc alloy parts were introduced. The pretreatment process includes polishing, degreasing and cleaning, activation and so on.
结果表明，此中性脱脂剂经济、环保， 除油效果好，具有很好的实用价值。
The results indicate that the practical values of this kind of neutral degreaser, including: low cost, environment protecting, and evidential effects of degreasing.
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