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产品经过镀锌后,需放入一种由铬酐、硫酸、硝酸等组成的钝化液中进行钝化,以达到装饰防护的目的。最近,我们学习了“优选法”的基本知识后,用优选法配制无氰镀锌的钝化溶液,取得了明显的效果。实践表明,优选法是技术革新群众运动中有广泛应用价值的一种科学的数学方法,应用优选法可以帮助我们以比较少的实验次数,迅速找到比较合适的工艺条件,配方和实验方案,达到多快好省的目的,在钝化液中,钝化质量不仅与铬酐、硫酸、硝酸量的多少有关,而且与钝化温度、时间有关。遵照毛主席要用全力找出它的主要矛盾的教导,我们找出硫酸和硝
After the product is galvanized, it needs to be put into a passivation solution composed of chromic anhydride, sulfuric acid, nitric acid, etc. for passivation, so as to achieve the purpose of decoration and protection. Recently, after learning the basic knowledge of the “Optimization Method,” we prepared a non-cyanide galvanized passivation solution using the preferred method, and achieved remarkable results. Practice shows that the optimization method is a scientific mathematic method with extensive application value in the technological innovation mass movement. The application of the optimization method can help us to quickly find relatively suitable process conditions, formulas and experimental schemes with a relatively small number of experiments. The purpose of a good province, in the passivation liquid, the passivation quality is not only related to the amount of chromic anhydride, sulfuric acid, and nitric acid, but also related to the passivation temperature and time. In accordance with Chairman Mao’s utmost efforts to find out its main contradictory teachings, we have identified sulfuric acid and nitrate.