The company. This is the beginning of commercial blow molding processing technology. In the 1840s, the variety and quantity of plastic products were very limited, so blow molding technology did not develop rapidly until very late. With the increasing variety of products and the improvement of productivity, the blow molding process is rapidly advancing

More and more plastic products are being produced. In the soft drink industry in the United States, the number of plastic containers increased from zero in 1977 to 10 billion in 1999. Blow molding technology began to be used in the production of low-density polyethylene small bottles during World War II. After the 1950s

With the birth of high-density polyethylene and the development of blow molding machines, blow molding technology has been widely applied. The volume of hollow containers can reach thousands of liters, and some production has adopted computer control. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, and polypropylene

Hollow containers obtained from materials such as polyester are widely used as industrial packaging containers. According to the production method of preforms, blow molding can be divided into extrusion blow molding and injection blow molding, with newly developed multi-layer blow molding and stretch blow molding. The extrusion process is to extrude the plasticized plastic through a screw

Press it into the extrusion die head, and then use the mold and compressed gas below to achieve product molding.