What are the precautions in injection molding processing

Injection molding is suitable for processing some parts with complex shapes. It can also realize automated production and improve work efficiency. The equipment heats and melts the raw materials and fills them into the mold. According to the wall thickness of the product, we can adjust different speeds, and then need to adjust the mold Apply a certain pressure to increase the density of the plastic, which can improve the quality of the product. The pressure holding process should continue to the cooling stage. After cooling and forming, the pressure can be released for demolding. When using the ejector to demold, pay attention to the uniform force. In addition, what should I pay attention to during processing?


What are the precautions in injection molding processing


1. Raw edges


During the cooling process, if the pressure inside the mold is relatively large, burrs may appear. We should pay attention to the changes in the product and reduce the pressure appropriately. Even if the temperature of the material is lowered, the burrs will appear when the mold vent is blocked. Circumstances, pay attention to cleaning the mold daily.


2. Shooting pattern


In the injection molding process, we need to fill the mold with raw materials. If the speed is too fast, the air inside the mold will be blocked, which will form a shot pattern. We can remove the tax before heating the raw material to avoid this situation. The conditions for the formation of the pattern also include air, so we must ensure the pressure during the cooling process.


3. Demoulding


We need to reserve enough cooling time before demolding, otherwise it is easy to cause the product to deform. If the demolding speed is too fast, this problem will also occur. We must not only receive the force evenly during demolding, but also control the speed. At the same time, the temperature of the film will also affect the quality of the finished product, so it is necessary to grasp the appropriate temperature.


There is a certain gap between the raw materials used in different products. Before processing, we must understand the characteristics of the materials and understand the appropriate temperature. Too high a temperature can easily damage the structure of the raw material, and it will also affect the quality of the product. If the temperature is not enough, it will also cause the surface of the product. The color is not uniform. We must pay attention to the speed during injection molding, avoid burrs, shrinkage, etc., to ensure the quality of production, and also pay attention to the cooling time, pay attention to product changes, and adjust according to the actual situation.


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