The blow molding machine process was used to produce low-density polyethylene vials during the Second World War.In the late 1950s,with the birth of high-density polyethylene and the development of blow molding machines,blow molding technology has been widely used.The volume of hollow containers can reach thousands of liters,and some production has been controlled by computers.Plastics suitable for blow molding include polyethylene,polyvinyl chloride,polypropylene,polyester,etc.The resulting hollow containers are widely used as industrial packaging containers.
The products produced by the film blowing machine are either air-cooled or water-cooled.Half of the air cooling is the upward blowing method,and the water cooling is generally the downward blowing method,The temperature of the cooling water can be room temperature.Unless the temperature in your place is very special,if you need to control the water temperature,the water temperatures is between 5 degrees and 30 degrees.optimal.
