The role of rotational molding technology in the manufacture

2021-07-16 11:11 admin
Rotational molding originated in Britain in 1940s, developed greatly in Europe in 1950s, and then spread to the United States, Japan and other places. With the maturity of polyethylene powder technology, rotational molding has increasingly become a very competitive molding method in powder plastic molding process. In recent years, rotational molding industry has been developing continuously with an annual growth rate of 10-15%, and it has become the best processing method for small batch production of medium, large or super large fully closed and semi closed hollow seamless containers. At present, the global resin consumption for rotary molding has accounted for 8% - 9% of the total resin production. This technology will also be used in the manufacture of pedal boats.
Compared with the traditional molding methods of hollow plastic products (such as injection molding, blow molding, thermoforming, etc.), the most significant feature of rotational molding is that the resin heating, molding and cooling process are carried out in a pressureless mold.
Such characteristics make it show the following advantages:
The mold is simple, low cost, suitable for forming large plastic products.
It is suitable for the production of many kinds and small batch of plastic products.
Suitable for forming complex shape products and composite products.
Save raw materials.
The wall thickness of the product is uniform without seams.
The product has no residual force and is not easy to deform.
It's easy to change the color. When you want to change the color of the product, you just need to clean the molding mold.
Yangzhou Runyuan Amusement Equipment Co., Ltd. specializes in producing all kinds of water entertainment facilities made of rotational molding.
Main products: rotational plastic water tricycle, rotational plastic water bicycle, rotational plastic pedal boat, etc.