Plastic blow molding machinery industry leader brand

There are many kinds of molding methods of manufacturing plastic containers, such as hollow blow molding, injection molding, rotational molding, compression molding, hot extruding and cold pressing etc.. Hollow blow molding and injection molding are the two most widely used methods in the forming process of plastic containers. According to data, 80% to 90% of the world's hollow containers are hollow blow molding process. Hollow blow molding technology is to make the shape of the mould by air pressure to close to the inner wall of the mold. Extrusion type billet production mode, to plastic melt heating and plasticizing from the shape of the mould gap extrusion, cylindrical parison forming various shapes. Extrusion of the shape of the slab by weight vertical suspension. Because of the strength of hollow containers require a minimal wall thickness, and blow molding equipment early lack of parison wall thickness control system, in order to make the products reach the thinnest minimum wall thickness requirements, other parts of the products will be thickened, waste materials. In order to save costs, shorten the product cooling time, speed up the production cycle, a more economical way is to control the wall thickness of the slab. Such as 501 wide mouth barrel, net weight products used for production of ordinary hollow blow molding machine for 3.5kg to reach the minimum wall thickness requirements, and the use of the parison controller products can fully meet the 2.4kg net minimum wall thickness requirements, saving raw materials from 20% to 30%, and the production of the products of uniform thickness.