blow molding is also known as hollow blow molding, a rapid development of plastic processing methods. blowing process during the second world war began to produce low-density polyethylene vials. the late 50s, with the birth of high-density polyethylene and blow molding machine development, blow molding technology has been widely used. hollow container volume up to thousands of liters, and some production has been used in computer control. the plastic used for blow molding is polyethylene, polyvinyl chloride, polypropylene, polyester, etc., the hollow containers are widely used as industrial packaging containers. according to the parison production method, blow molding can be divided into extrusion blow molding and injection blow molding, the new development of the multi-layer blow molding and stretch blow molding.
application: bottles, jars, baby supplies, sporting goods, etc.
