china plastic injection molding process

Injection molding process:
Most industrial and agricultural use of injection molded plastic parts, plastic parts themselves because they have a high design accuracy, the use of special engineering plastics processing, plastics can not be used for the conventional injection molding, precision injection molding and must use technology. In order to ensure the performance of these precision plastic parts, quality and reliability and stability of long-term use, high-quality injection molding, product design meet the requirements of plastic products, the need for plastic materials, plastic injection mold design and injection molding equipment and processes, and injection site management to improve.
We usually say is precision injection molding precision injection molding products should meet the strict appearance dimensional tolerances, geometric tolerances and surface roughness. To be precise injection must have many related conditions, and most essential is a plastic material, injection mold, injection molding and injection molding equipment, these four basic factors.


Design of plastic products should be first selected plastic materials, and capable of precision injection molding of engineering plastics and high mechanical properties must be selected, dimensional stability, creep resistance and good resistance to environmental stress cracking of the material. Second choice should be based on plastic materials, finished size precision, piece weight, quality requirements and the expected application of the mold structure used injection molding machine. In the process, the factors that affect the precision injection molding products, mainly from the mold temperature, injection molding process control, and production site of the ambient temperature and humidity range, and acquired product annealing and so on.
On precision injection molding, the mold is used to obtain the quality requirements of one of the key precision plastic products, precision plastic injection molds should earnestly comply with the product size, and shape accuracy requirements, mold material should be strictly selected. But even if the accuracy of the mold, the same size, the molding of plastic products of the actual size will be inconsistent due to differences in shrinkage. Therefore, effective control of plastic shrinkage in precision injection molding technology is very important.
We are in the field of injection molding ten years of production experience, focusing on a variety of precision injection mold development and production! More information can refer to http://blog.sina.com.cn/s/blog_59381e5e0100xvq5.html or visit our website www.cnmoulding.com www.injectionmoldchina.com ! Hope to provide you some help!