【摘要】 实验研究了浸镀时间、钢基及锌池中的硅含量对热浸锌镀层厚度的影响.结果表明,随浸镀时间延长,镀层厚度明显增加;当钢基中的硅在一定范围内时,合金层厚度也明显增加,镀层灰暗,且ζ相为不连续的颗粒状,呈现出硅的反应性特征;改变锌池中硅的添加量,对镀层结构及厚度影响较小.更多还原

【Abstract】 The effects of Si in the steel, in the galvanizing bath and immersion time on the coating thickness have been studied. The experimental results indicate that the coating thickness increases pronouncedly as the immersion time is prolonged. When the content of Si in the steel is in a definite range, Si gives rise to dull grey coatings of excessive thickness, and ζ phase is uncontinuous. This phenomenon is referred as to Si reactivity.No change in the morphology and thickness of galvanized coatings has been observed with the addition of silicon in zinc bath.更多还原