近年来,我国镀锌、镀锡钢板的消耗量约为50余万吨。需求量的不断增长,造成供需矛盾突出,其中镀锡钢板尤甚,长年依靠进口,年耗外汇达3亿美元,仍不能满足需要。 1.概述镀锡钢板(俗称马口铁)是以可冲压的薄钢板为基体,在其表面镀锡,具有多层保护膜(层)的钢铁制品。它具有耐腐蚀、无毒、无味、表面光泽、重量轻、强度高(相 In recent years, China’s galvanized, tin-plated steel consumption of about 50 million tons. The ever-increasing demand has resulted in the prominent contradiction between supply and demand. Tin-plated steel, especially for years, relies on imports and can consume 300 million U.S. dollars of foreign exchange each year, which still can not meet the needs. 1. Overview Tinplate (commonly known as tinplate) is based on the stamping of the steel sheet as the substrate, tin-plated on its surface, with a multi-layer protective film (layer) of steel products. It has a corrosion-resistant, non-toxic, tasteless, shiny surface, light weight, high strength (phase