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机械镀锌层形成过程存在以下问题难以解释

发布时间:2019-01-08 点击数:355

机械镀锌层形成过程存在以下问题难以解释


1)镀液中的金属离子发生怎样的化学反应?其对镀层形成又产生怎样的作用?
2)镀层形成过程是否有“先导金属”起着诱导沉积作用?其作用机制又如何?
3)镀层形成过程既然没有结晶现象,镀层的结构特征又如何?与传统电镀锌层、热浸镀锌层比较机械镀锌层的结合机理又怎样解释?
4)机械镀锌层这种不需结晶方式的金属镀层的综合性能又怎样?


同时,由于机械镀锌层形成过程中镀筒内物料环境的复杂性及施镀环境的半封闭性等原因,使得机械镀锌层的形成过程研究具有一定的难度。而这些问题尚不能用传统金属学和结晶学的经典理论解释,但其又决定了最终镀层质量的好坏。这也是本书的研究重点。主要介绍了机械镀锌的沉积过程、镀层结构,揭示了机械镀锌镀层的形成原理,是指导机械镀锌生产实践和相关产品推广的有力支撑。

1) What are the chemical reactions of metal ions in the bath and what are their effects on the formation of the coating?
2) Does "lead metal" play a role in inducing deposition during the formation of the coating? What is its mechanism?
3) Since there is no crystallization in the process of coating formation, what are the structural characteristics of the coating? How to explain the bonding mechanism of mechanical galvanizing layer compared with traditional galvanizing layer and hot dip galvanizing layer?
4) What is the comprehensive performance of mechanical galvanizing coating, which does not require crystallization?
At the same time, due to the complexity of the material environment in the cylinder and the semi-sealing of the plating environment during the formation of mechanical galvanizing layer, it is difficult to study the formation process of mechanical galvanizing layer. These problems can not be explained by the classical theories of traditional metallography and crystallography, but they determine the quality of the final coating. This is also the focus of this book. The deposition process and coating structure of mechanical galvanizing are introduced. The forming principle of mechanical galvanizing coating is revealed. It is a powerful support to guide the production practice of mechanical galvanizing and the promotion of related products.

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