中国古青铜器表面富锡铜鎏镀及鎏焊的工艺探索 第二部分——鎏镀的原理及工艺设计

Technological study on amalgam coating and brazing of tin-rich copper on surface of bronze wares of ancient China—Part II. Principle and process design of amalgam coating

阐述了鎏镀料中铜、锡、铅、汞的主要作用,以及加热驱汞时各元素之间冶金反应的原理和物相变化。以仿古青铜镜为例,设计了 3 种鎏镀用富锡铜粉的配方,介绍了青铜件的镀前处理,汞齐涂料配制和涂抹的方法,以及加热驱汞的操作步骤。指出了古青铜器表面富锡镀层为鎏镀富锡铜的依据。

The major roles of Cu, Sn, Pd, and Hg in amalgam coating material, the principle of metallurgical reactions between the elements, and the phase transformation involved in the process of removing mercury by heating were described. Three formulations of Sn-rich copper powder for amalgam coating were designed to reproduce antique bronze mirrors. The pretreatment of bronze wares, the preparation of amalgam coating material and its coating method, and the operation procedure of mercury removal by heating were introduced. The reasons why the Sn-rich coatings on ancient bronze wares are produced by amalgam coating of Sn-rich copper were presented.