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People use high-speed injection molding machines to shorten the injection cycle and improve production efficiency. However, in the production process of injection molded products, the slippage of the screw of the injection molding machine is a big problem. Especially for hygroscopic materials (such as nylon), the high water content of the resin will cause the screw of the injection molding machine to slip. Improper drying will significantly reduce the viscosity of the material and generate water vapor in the barrel, thus reducing the conveying power of the screw. In this regard, a humidity analyzer can be used before processing to determine the moisture content of the dried material, so that the drying level of the material can reach the recommended value of the supplier.
The slippage of the screw of the injection molding machine will cause material degradation, which will affect the quality of the product. What are the reasons for the screw slippage? How to "catch" the slippery screw? When the screw of the barrel is slipping, the materials probably gather at the feeding port and cannot be conveyed to the end of the injection machine normally. When the screw rotates and retreats in the barrel to transport the material and prepare for the next injection, screw slippage will occur in the plasticizing section.
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