1. Insufficient melting
Due to the thin wall thickness of thin-walled products, plastic needs to quickly fill the mold during the filling process. However, if the filling time is too short or the injection molding machine pressure is insufficient, it can lead to insufficient melting. This type of defect usually occurs at the edges or weak parts of thin-walled products, affecting the quality and strength of the product.
2. Burr edge
During the injection molding process, rough edges will be generated at the contact surfaces between molds, especially at the edges and corners of thin-walled products. These burrs will affect the appearance and dimensional accuracy of the product, and may have an impact on the next processing step.
3. Warpage
Thin walled products are prone to warping during processing, especially when one side of the product has a thinner wall thickness, which can easily cause distortion or warping. This defect can affect the appearance and dimensional accuracy of the product, as well as its usability.
4. Bubbles
Thin walled products are prone to producing bubbles during injection molding, especially when there are impurities or air in the plastic material. These bubbles can affect the sealing and usability of the product, and may lead to product rupture or damage.
5. Plastic shrinkage
Thin walled products have a high plastic shrinkage rate, which can easily lead to inconsistent product dimensions. This phenomenon usually occurs in large areas of thin-walled products, affecting the effectiveness and appearance of the product.