Home > Exhibition > Content

The cause of mold rust and whether rust inspection

Oct 09, 2019

The injection mold is made of tool steel, which will encounter corrosive gas, water and other rusting substances in the work.

The injection mold is made of tool steel, which will encounter corrosive gas, water and other rusting substances in the work.Rusty Moulds will cause quality problems, so they need to be eliminated.

1.A gas produced by the decomposition of a melt

Some materials produce volatile gases when heated. Many materials also produce volatile gases when heated. These gases are often corrosive.

To this, when the machine stops working, apply soft cloth to wipe the mold, and close the mold, if not for a long time, the mold cavity to spray anti-rust agent, when closing the mold also coated with butter, plug the gate.

2.Cooling water in mold

The mould has more cooling water to wake up and cool down, so there is more water and air around the machine.If the mold cooling to a dew point, moisture in the air will be formed on the surface of the mold, such as not timely wipe it is easy to rust.

Especially in the mold stopped working, will soon produce condensation water.Therefore, do not easily stop molding, even to stop, also want to close the cooling water, and the mold dry.

3.Carbides produced during molding

After the mold works for a long time, the molding material precipitates and decomposes to form carbide, which often causes the mold to wear, corrode or rust.For this, if found carbide formation, should immediately wipe it off with a dry cloth, wipe.

桶模