What should I do if there is material splash on the product during the injection molding process?
During the injection molding process, the product occasionally has the problem of material flower, which undoubtedly brings trouble to the manufacturer. Material flower not only affects the appearance quality of the product, but also may affect the performance of the product. So, in the face of this problem, how can we solve it? This article will introduce you to some practical methods to help you easily deal with the material flower problem in injection molding.
First, check and optimize the material. Make sure that the raw materials used are dry, pollution-free, and meet the process requirements. If the material is highly hygroscopic, the drying temperature and time should be appropriately increased to ensure that the moisture is fully removed. At the same time, avoid using too much recycled material, because the recycled material may contain impurities or contaminants, increasing the risk of material flower.
Second, pay attention to the mold status. The cleanliness, temperature and exhaust condition of the mold have an important impact on the quality of injection molding. Clean the mold surface regularly to ensure that there is no oil, impurities or residues. Adjust the mold temperature to match the material properties to promote uniform flow of plastic. In addition, check the exhaust system of the mold to ensure that the gas can be discharged smoothly to avoid the formation of bubbles or material flowers during the injection molding process.
Third, adjust the process parameters. Process parameters such as injection speed, pressure, time and temperature have an important impact on the injection molding process. By adjusting these parameters, the flow rate and cooling rate of the plastic in the mold can be controlled, thereby reducing the generation of material flowers. Specifically, you can try to reduce the injection speed, increase the injection pressure and holding time, or adjust the melt temperature and mold temperature to find the best process conditions.
In addition, machine maintenance and calibration are also crucial. Ensure that the functions of the injection molding machine are normal and the accuracy meets the requirements. Regularly maintain and service the machine, including cleaning, lubrication, and replacement of worn parts. At the same time, regularly calibrate the accuracy of the machine to ensure its stable operation and produce high-quality products.
Finally, strengthen employee training and quality awareness. Employees are the key factor in the injection molding production process, and their operating skills and quality awareness directly affect product quality. Therefore, regular training and guidance of employees to improve their operating skills and quality awareness will help reduce the occurrence of quality problems such as material flowers.
