Causes and solutions of side wall indentation of injection parts

In our daily production and life, injection molding parts are widely used in various fields, such as automobiles, electronics, home appliances and so on. However, due to various reasons, the problem of side wall dents often appears, which not only affects the quality and beauty of the product, but also may endanger the safety of the product. This article will deeply analyze the causes of side wall dents of injection parts, and provide some effective solutions.

The main reasons for the side wall dent of injection parts include improper mold design, improper material selection and unreasonable injection molding process. Improper mold design can lead to uneven plastic flow and local pressure, which can lead to side wall dents. Improper selection of materials may cause the plastic to generate heat during the injection process due to friction, which leads to material degradation and the formation of side wall dents. The unreasonable injection molding process may also lead to side wall dents, such as too fast injection speed and insufficient cooling time.

We offer the following solutions to the problem of side wall dents in injection moulded parts:

1. Improve mold design: By optimizing mold design, the plastic can flow evenly during injection and reduce local pressure. For example, increase the flow channel design, improve the exhaust design and so on.

2. Optimize material selection: Select suitable plastic materials to reduce the heat generated by friction during injection and prevent material degradation.

3. Adjust the injection molding process: by adjusting the injection speed, cooling time and other parameters, to ensure that the plastic will not be caused by high temperature, high pressure and other factors during the injection process.

Case study: An electronic equipment manufacturer encountered the problem of side wall dents in the production process of injection parts. After analysis, it is found that the main reason is due to improper mold design and improper material selection. Therefore, the manufacturer has taken the following measures: First, optimize the mold design, so that the plastic can flow more evenly during the injection process; Secondly, a more suitable plastic material was selected to reduce the heat generated during the injection process; Finally, the injection process is adjusted to ensure that the plastic will not produce side wall dents under high temperature and high pressure. After implementing these measures, the electronic equipment manufacturer successfully solved the problem of side wall dents of injection moulded parts, and the product quality was significantly improved.

The side wall dent of injection molded parts is a problem that needs our attention. By improving mold design, optimizing material selection and adjusting injection molding process, we can effectively solve this problem and improve product quality and safety. With the continuous development of science and technology, we look forward to seeing the application of more innovative technologies in the future injection molding production, bringing more convenience and surprises to our lives.