What is the role of rotational molding?
Our common processing and molding processes for plastics and composite materials include extrusion, blow molding, injection molding, etc. In addition, rotational molding is also a processing method for plastic products. The rotational molding industry is developing rapidly abroad, but the development speed of the rotational molding industry is far lower than that of other plastic molding industries in China due to various factors such as the slow Makespan and the restrictions of the materials used. Fangda Roll Molding is a professional manufacturer of fully automatic roll molding machines and provides automotive urea tanks. Today, we will explain the role of roll molding for everyone.
The rotational molding process emerged in the 1930s, and after 60 years of development, its equipment and process have matured. Nowadays, toys are manufactured using rotational molding, ranging from small children's toys to common automotive plastic parts to massive engineering plastic products, especially ultra large and non-standard hollow plastic products. Due to the inherent limitations of its plastic processing technology, it can only be completed through the rotational molding process. In general, rotational molding is mainly applied to thermoplastic materials, and the development of rotational molding for thermosetting materials such as crosslinkable polyethylene is also rapid. Because rotational molding does not require high injection pressure, high shear rate, or polymer gauges, molds and machines are relatively inexpensive and have a long service life.