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By adding 0 5%~3% low molecule of organic acid of action promotor to the masking liquid of the thermosetting chromate conversion films on zinc (TCCF),and thermosetting at 200℃, the result is mostly similar to that obtained by thermosetting the coating at 300℃. There is,therefore,the evidence and the possibility to decrease the thermosetting temperature. 研究了热固型锌铬酸盐转化涂层(TCCF)的涂覆液中,加入0.5%~3%(质量百分数)低分子有机酸的反应促进剂,在200℃固化可得到传统的300℃固化涂层同样好的防蚀效果,并通过各种分析测得涂层的组成及分布几乎一样的结果,从而得出了降低固化温度的依据和可能性 The preparing process of photocatalytic TiO 2 film by Sol-Gel method is discussed.The conversion process of TiO 2's structure during the course of heat treatment is investigated.Various factors and technological parameter influencing the process are studied.The high quality film can be obtained on soda lime silicate glass substrate given the proper masking liquid and temperature of heat treatment. 本文论述了用溶胶—凝胶法制备TiO2 光催化膜的工艺过程 ;研究了热处理过程中TiO2 膜结构转化过程 ;探讨了影响成膜过程的各种因素及工艺参数。结果表明 :适当选择涂液成分、热处理温度 ,可在普通玻璃基片上制备出性能优良的膜层 ,其透过率高耐磨并且具有明显的光催化性能。 Surface treatment technology of dacromet coating was introduced for steel workpieces.Specific instructions were provided for general trouble-shooting in the coating process with self-made dacromet masking liquid. 介绍了达克罗技术的优点和钢铁工件达克罗涂覆的表面处理工艺。在涂液工业化过程中发现高分子量的聚丙烯酸钠可以显著提高涂覆液的稳定性 ,增加铝含量可增加涂覆件银白色泽 ,铬酸 pH值应介于 1~ 4之间。探讨了搅拌时间、润湿剂、还原剂对涂液和涂层的影响以及涂层厚度与黏度的关系
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