Paint bucket injection mould anti-rust maintenance

- Mar 27, 2018-

Paint bucket injection mould anti-rust maintenance


We often spray anti-rust agent after using the paint bucket injection mould, because the cavity surface will be damp or carbide corrosion caused by the plastic material after the mould is produced. After rusting, the mould will be rust-removed and polished, which will give you the production. With delays, it can be seen how important daily maintenance is. Let's take the paint bucket mould as an example to explain why common moulds are rusty:


(1) The gases produced by the decomposition of the melt.


Some raw materials will generate volatile gases after heating. These gases are highly corrosive and they will corrode paint bucket injection moulds. Therefore, when the equipment stops working, wipe the mould with a soft cloth and close the mould. If it is not used for a long time, spray the rust-proofing agent inside the mould cavity. When closing the mould, apply grease and block the gate.


(2) cooling water in the mould.


Cooling water is often used in Seaco's paint bucket moulds for cooling, so the moisture around the moulding equipment is high. If the mould is cooled below the dew point, the moisture in the air will form water droplets on the surface of the mould. If it is not rubbed off in time, it will rust easily. Especially after the mould stops working, condensation water will soon be generated. Therefore, when the moulding is stopped, the cooling water is also turned off and the mould is wiped dry.


(3) carbides formed during moulding.


After the paint bucket injection mould has worked for a long time, the forming material is precipitated and decomposed to form carbides, which often causes the mould to wear, corrode, or rust. In this regard, if carbide formation is found, it should be immediately removed.