What does an apprenticeship in blowing plastic bags do?

Blowed plastic film is produced by a film blowing machine. It means adding plastic raw materials into a plastic extruder, heating, melting, and plasticizing them and extruding them through a die. Then compressed air is introduced to blow them into a tube film, which is cooled and rolled into a film tube material, and then cut and thermally synthesized into plastic. bag. Apprentices must first do some work such as ingredients, feeding, and unloading finished products from machines. Over time, I will learn some operating techniques from the master, such as controlling temperature, controlling film weight, adjusting equipment process parameters, etc. Film blowing work is not tiring. As long as the equipment is running normally, you can sit down and rest. Add some materials or unload the finished product to weigh it every 1 to 2 hours.