Loss and prevention of zinc in hot galvanizing process

In hot galvanizing process, the loss of zinc will be more or less caused by the operation of workers. The main scenes and corresponding measures are as follows:

Before the workpiece is immersed in zinc, due to the improper preparation and temperature of the plating solution, the empty time is too long, which causes the workpiece to return to moisture. During the dip plating, a large amount of zinc is spattered out by "zinc explosion".

Dry the workpiece before dipping, or add the explosion-proof agent, and pay attention to the moderate concentration of solvent, no impurities, so as to reduce the dip of "explosion" and spatter zinc.

When the workpiece leaves the zinc pot, the driving speed is too fast, or the zinc flow Angle is too small, some of the zinc liquid is stuck on the workpiece surface and solidified. After starting the workpiece, increase the Angle of the zinc flow, and the zinc liquid is guaranteed to flow back to the galvanized pot.

When the zinc ash is pumped from the zinc liquid surface, the speed is too fast and the zinc flow is not smooth. Some zinc particles are taken away and the zinc particles are separated from the zinc ash. It is recommended to use a reasonable zinc ash recovery device.

The zinc that drops into the cooling pool and spatters the ground, adheres to the hanging tool and so on, should be dealt with in time, but the broken zinc that carefully sweeps the ground is thrown directly into the zinc pot without treatment.

When salvaging zinc slag, because of the unreasonable dredge tool, improper temperature control of zinc liquid, zinc slag doped with a lot of pure zinc, resulting in waste.

The addition of alloy before the purification of zinc solution, and the removal of slag without purification, static setting, will waste zinc, alloy and produce mucous zinc dust porridge.

Improper use and maintenance of zinc kettle will lead to perforation and zinc leakage, which will cause serious zinc waste!