热镀锌产品的特点是表面美观，耐腐蚀性好，加工性好。它分正常锌花和无锌花两种。之前的热镀锌产品由于锌液中的铅不能提炼得很纯净，表面总有一些锌花，所以我们传统观念里面热镀锌就是有锌花的。

Hot dip galvanized products are characterized by beautiful surface, good corrosion resistance and good processability. It is divided into normal zinc flower and zinc free flower. In the previous hot-dip galvanizing products, because the lead in the zinc solution can not be purified, there are always some zinc flowers on the surface, so in our traditional concept, hot-dip galvanizing has zinc flowers.

随着热镀锌钢板在汽车工业中的广泛应用，正常锌花就不能满足涂装的要求。而把锌锭和锌液中的铅含量减少，就可以生产出没有锌花或者很少锌花的产品。当然对于建筑上面使用并且还喜欢大锌花的话，也可以在锌液中添加铅或锑等元素，这样大而美丽的锌花就会呈现在你的眼前。

With the wide application of hot-dip galvanized steel sheet in automobile industry, normal zinc flower can not meet the requirements of coating. By reducing the lead content in zinc ingot and liquid zinc, products with no or little zinc flowers can be produced. Of course, if you like large zinc flowers used on buildings, you can also add elements such as lead or antimony to the liquid zinc, so that large and beautiful zinc flowers will appear in front of you.

热镀锌工艺流程：工件→脱脂→水洗→酸洗→水洗→浸助镀溶剂→烘干预热→热镀锌→整理→冷却→钝化→漂洗→干燥→检验。

Hot dip galvanizing process flow: workpiece → degreasing → water washing → acid pickling → water washing → dipping auxiliary plating solvent → drying and preheating → hot dip galvanizing → finishing → cooling → passivation → rinsing → drying → inspection.

耐指纹板耐腐蚀性能与膜厚存在直接关系，皮膜越致密，膜厚越厚，隔绝空气中的水分、氧气和其他腐蚀介质的能力越强，耐蚀性能就越好。

The corrosion resistance of fingerprint plate is directly related to the film thickness. The denser the film, the thicker the film thickness, the stronger the ability to isolate water, oxygen and other corrosive media in the air, and the better the corrosion resistance.

一路走来，我们看到了热镀锌工艺的一步步发展，从上个世纪一个小小的试验到现在几乎充斥在我们生活的各个角落，未来还会有第五代第六代耐蚀新材料，而这一工艺究竟还能给我们以后的生活带来怎样的改变与进步，我们翘首以待。

Along the way, we have seen the step-by-step development of hot-dip galvanizing process. From a small experiment in the last century to now, it is almost filled in every corner of our life. There will be the fifth and sixth generation of new corrosion-resistant materials in the future. We are waiting for what changes and progress this process can bring to our future life.