Therefore, the rust of galvanized black iron wire has a great relationship with storage. At the same time, after rust, it is also necessary to conduct reasonable post-processing to avoid affecting its use effect. Of course, when the black iron wire is galvanized, it is also necessary to ensure the thickness of the galvanized layer, so that it can also reduce the possibility of rust. Speaking of galvanized iron wire, perhaps many people think it is relatively rare, in fact, it is not.

Large roll galvanized wire is the use of low carbon steel wire processing, after drawing forming, pickling rust removal, high temperature annealing, cooling and other processes, in the use of is more widely. The temperature of large roll galvanized wire for electroplating should be controlled at 30 to 50℃. Because the chloride ions in the bath are very corrosive, quartz glass heaters are generally used.

Secondly, the zinc-iron alloy protective layer of hot-dip galvanized wire has self-healing properties. When the surface of hot-dip galvanized wire is damaged or scratched, zinc metal can form zinc ions through electrochemical reaction, self-healing repair of the damaged zinc-iron alloy protective layer, so as to maintain the corrosion resistance of the steel wire. This self-healing property enables the hot-dip galvanized wire to be quickly repaired during use, even if there is a slight scratch or damage on the surface, avoiding further corrosion. After the ordinary steel wire is damaged on the surface, it is often unable to repair itself, which is easy to lead to the diffusion of corrosion and accelerate the aging and damage of the steel wire.

DS: the substituent of HPMC is Hydroxypropyl and Methoxy. The ratio of them affects HPMC properties. The higher the hydroxypropyl content, the better the water retention effect. The lower the methoxy content, the higher the gel temperature. The DS of HPMC is 1.2-2.0. But HEC substituent is Hydroxyethyl substituent. Its DS is 1.5-2.0.