热镀锌和电镀锌是镀锌钢板的常见两种不同工艺。

Hot galvanizing and galvanizing are two different processes of galvanized steel plates.

热浸镀锌钢板是将薄钢板浸入熔解的锌槽中，使其表面粘附一层锌的薄钢板。目前主要采用连续镀锌工艺生产，即把成卷的钢板连续浸在熔解有锌的镀槽中制成镀锌钢板。

Hot dip galvanized plate is a thin sheet immersed into a molten zinc tank to attach its surface to a layer of zinc.At present, the continuous galvanizing process is mainly used, that is, the rolled steel plate is continuously immersed in the molten galvanized plating tank to make a galvanized steel plate.

热镀锌原理：当经过表面处理的钢质工件进入Zn熔融液(高温440℃左右熔化锌锭)时，铁基体与熔融锌反应，铁被溶解，形成Zn在α-Fe中的固溶体；相互扩散，生产Fe-Zn合金化合物；工件离开锌熔融液时，带出纯的熔融Zn覆盖在合金层上，形成纯的Zn层。

Hot galvanizing principle: when the surface treated steel workpiece enters the Zn molten liquid (molten zinc ingot at high temperature 440℃), the iron matrix reacts with the molten zinc, and the iron is dissolved to form a solid solvent of Zn in-Fe; spreads to produce the Fe-Zn alloy compound; when the workpiece leaves the zinc molten liquid, the pure molten Zn is covered over the alloy layer to form a pure Zn layer.

经横切以矩形平板供货的为热镀锌板；经卷取以卷状供货的为热镀锌卷。

Hot galvanized plate by rectangular plate and hot galvanized plate by coil.

由于使用的基板不同，因此热镀锌钢板可分为热轧镀锌板卷和冷轧热镀锌板卷，它们主要用于建筑、家电、汽车、容器、交通及家业等领域。特别是钢结构建筑、汽车制造、钢板窗制造等行业。

Due to the different substrates used, hot galvanized steel plates can be divided into hot rolled galvanized sheets and cold rolled hot galvanized sheets, which are mainly used in construction, home appliances, automobiles, containers, transportation and home industry.Especially the steel structure construction, automobile manufacturing, steel plate window manufacturing and other industries.

总的来说，热镀锌是一种有效的金属防腐方式，主要用于各行业的金属结构设施上。是将钢、不锈钢、铸铁等金属浸入熔融液态金属或合金中获得镀层的一种工艺技术。是当今世界上应用最广泛、性能价格比最优的钢材表面处理方法。热镀锌产品对钢铁的减蚀延寿、节能节材起着不可估量和不可替代的作用，同时镀层钢材也是国家扶植和优先发展的高附加值短线产品。

In general, thermal galvanization is an effective way of metal anticorrosion, mainly used in metal structural facilities in various industries.It is a technology of soaking steel, stainless steel and cast steel into molten liquid metal to obtain coating or alloy.It is the most widely used and optimal performance price method in the world.Hot galvanized products play an immeasurable and irreplaceable role in corrosion reduction and life extension, energy saving and energy saving materials. At the same time, coated steel is also a high value-added short-term product of national support and priority development.