Rotational process principle
The basic process of rotational molding is simply to place the powder or liquid polymer in the mold while the mold is rotated around the vertical axis and rotated and then turned and then cooled. At the beginning of the heating phase, if a powdered material is used, a porous layer is first formed on the surface of the mold and then gradually melted with the circulation process to form a homogeneous layer of uniform thickness. If a liquid material is used, Coated on the mold surface, when the gel point is reached when the complete stop flow. The mold is then transferred to the cooling work area, forced by ventilation or water cooling, and then placed in the work area, where the mold is opened, the finished part is removed, and then the next cycle.