The production relationship between temperature and rotational molding packaging boxes

  Temperature is indispensable to the polyethylene rotomolding process. As an example, the polyethylene rotomolding process has a special appearance: the powder melting process prevents the formation of foam between the air particles, and then the foam disappears during the continuous heating process. Further research shows that these foam are not due to the downward buoyancy effect of their free surface melting, but because the bubbles gradually fuse in the plastic melt in the air and melt. Therefore, it is of great significance to improve the quality of foam polyethylene products by scientifically controlling the heating process of polyethylene roll forming machines. Due to the long heating time and rotation time, especially the wall thickness, it can last for half an hour to an hour or more.


  The measures taken by the demand are to avoid the use of polyethylene plastic antioxidants during the heating process of thermal oxidation and information function. However, when polyethylene materials are heated to high temperatures or for too long, oxidation and oxidation resistance cannot avoid data. When there is a greater demand for longer heating time for thickness, it is necessary to lower the heating temperature. If you use a gradual temperature and shorten the heating time, there will be air bubbles and foam can not be seen.