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引言近年来,国外出现了一种新型高耐蚀镀层钢板——合金化镀锌板(下简称合金化板),它是由镀锌板经扩散退火而得到的。这种表面呈均匀灰白色、镀层全部由铁锌合金相组成的镀层钢板,具有良好的耐蚀性和加工成形性,其焊接性和涂漆性也比镀锌板有很大改善,因而一些国家已将它应用于车辆制造和建筑等部门。我国对这种新材料的使用基本处于空白状态,唯一能生产合金化板的武钢冷轧厂还未大批生产供货。为促进合金化板在我国的推广使用,开展了对
INTRODUCTION In recent years, a new type of high corrosion resistant coated steel plate has appeared in foreign countries - alloyed galvanized sheet (hereinafter referred to as alloy sheet), which is obtained by galvanized sheet by diffusion annealing. This surface was uniform gray white, coating all by the iron-zinc alloy coated steel plate, has good corrosion resistance and formability of the processing, its weldability and paint than the galvanized sheet has greatly improved, and thus some countries It has been applied to the vehicle manufacturing and construction departments. China’s use of this new material is basically in a blank state, the only production of alloy steel plate WISCO cold rolling mill has not yet a large number of production and supply. In order to promote the promotion and use of alloy plate in our country, carried out right