一、 Gas produced by melt decomposition

Some raw materials will produce volatile gases when heated, and many raw materials also produce volatile gases when they are overheated, these gases are mostly corrosive, they permeate the machine around, and when the mold is not working, they will corrode the mold.

In this regard, when the machine stops working, the mold should be wiped clean with a soft cloth, and the mold should be closed, if it is not used for a long time, the mold cavity should be sprayed with rust inhibitor, and the mold should be coated with butter when closing the mold, and the gate should be plugged.

二、 Cooling water in the mold

There is more cooling water in the mold to wake up and cool, so there is more water vapor around the machine.
If the mold is cooled to the dew point, the moisture in the air will form water droplets on the surface of the mold, and it is easy to rust if it is not wiped off in time.

Especially after the mold stops working, condensation can quickly occur. Therefore, do not stop the molding easily, and even if you do, turn off the cooling water and wipe the mold dry.

三、Carbides produced during molding

After the mold works for a long time, the molding material precipitates and decomposes to form carbides, which often makes the mold wear, corrode or rust. In this regard, if carbide is found, it should be wiped off and wiped off immediately with a dry cloth.