There are several cases of plastic mold rust-one is in the mold manufacturing process, the other is in the injection molding process, and the other is the most common situation that causes a special headache, which is 0K in injection molding. After getting off the vehicle, it was found that the mold rusted again after a while on the injection molding machine. Next, let us analyze the various factors and preventive measures that lead to the rust of plastic molds.
I believe that many friends have encountered the problem of rusting of plastic molds, which directly affects the appearance of the product. Slight rust can be removed from the mold. If the rust is too deep, the mold will even be scrapped. How can we stop it before it happens? Rust is also a common phenomenon in the manufacturing process of plastic molds.
For example, running water is used as a cutting fluid for quickly moving wires during wire cutting. If the workpiece processing time is too long, it will inevitably rust. Even if the air is too humid in the rainy season, the mold parts are not sprayed with rust inhibitor, and they will rust if they are not in contact for a long time. However, in the process of processing, the core almost does not rust, and the mold needs to be saved after processing, so it has little effect.
What is the cause of rust in plastic mold? How to avoid rust? Plastic mold factories that integrate injection molding should all encounter rust during the injection molding process. Obviously, the morning is still good, the mirror products are still mirror surfaces, and the products produced in the afternoon are dotted with dots. Don't be surprised, there are no ghosts here. This is a normal phenomenon. Plastic melts in the barrel at high temperature and is injected into the mold cavity. At the same time, it will also release corrosive gases and carbides. Once found, it should be wiped off with cotton immediately.
