How to deal with silver wire in alloy injection molding?
1、 What is silver wire?
Silver wire refers to a small silver line that appears on the surface of injection molded products, usually due to the insufficient melting of the alloy material during the injection molding process to form a dense melt flow, resulting in tensile marks between the melting points, leading to the appearance of silver wire in the final product.
2、 The hazards of silver wire
Although silver wire is a small linear defect, it can seriously affect the appearance quality of the product, reduce its value, and even lead to the product being identified as defective, damaging the company's reputation and image.
3、 Handling method
1 Adjust the parameters of the injection molding machine
Adjusting the alloy melting temperature, injection speed, holding time and other parameters of the injection molding machine is the primary method to solve the silver wire problem. The melting temperature of the alloy material can be appropriately increased, or the injection speed can be slowed down, and the holding time can be extended to allow the alloy material to fully melt and flow, reducing the occurrence of silver wire.
2 Replace the appropriate mold
During the injection molding process, alloy materials are more prone to silver wire formation when subjected to stress and heat. Therefore, when choosing a mold, one should choose a mold that can increase the melting time of the alloy material and ensure uniform flow, thereby reducing the probability of silver wire occurrence.
3 Pre processing treatment
Treating the alloy material before injection molding is also one of the important methods to solve the silver wire problem. The moisture in the alloy material can be evaporated by high-temperature drying, thereby avoiding the production of silver wire during the injection molding process due to moisture evaporation.
4、 Summary
Silver wire is a common quality issue in the injection molding process of alloy materials, but by adjusting the parameters of the injection molding machine, replacing suitable molds, and pre-processing, the occurrence of silver wire can be effectively reduced and product quality can be improved. I hope this article can help you solve the silver wire problem that may occur in alloy injection molding and improve product quality.
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