It shall conduct quality management in the whole process from raw materials to final products, rigorously enforce the post-related quality responsibility system, and strengthen quality assessment.
实施从原材料到最终产品的全过程质量管理，严格岗位质量责任，加强质量考核。
The existing problems of black phosphating process for solenoid valve were analyzed, including unstable phosphating quality, imperfect technics, incongruous rack design and low post-treatment quality.
分析了电磁阀本体黑色磷化工艺存在的问题，包括磷化质量不稳定，工艺不完善，挂具设计不合理、后处理质量低等。
Influences of parameters for oxidizing process, pre and post treatment procedures and material status of brass substrate on quality of chemical conversion film on brass were described.
介绍了氧化工艺参数，前、后处理工序，黄铜基体材质状况等因素对黄铜化学转化膜质量的影响。
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