At present, there are many processing technologies for plastic buckets, among which the injection molding technology is one of them. The injection molding is to decompose the high-pressure polyethylene through high temperature. This process is simple and easy to operate, and the product appearance made by the injection molding is shiny and moving
Plastic bucket injection processing process can be divided into four steps, respectively is filled, pressure, cooling, stripping four stages
Filling is the first step in the whole process of injection molding. The time starts from the closing of the mold to the filling of the mold cavity to about 95%.
Holding pressure is the continuous application of pressure, compaction melt, increase the density of plastic to compensate for plastic. In the later stage of pressure maintaining, the material density continues to increase, and the plastic also gradually takes shape. The pressure maintaining stage should continue until the gate solidifies and seals. At this time, the mold cavity pressure in the pressure maintaining stage reaches the highest value.
The design of the cooling system is very important. This is because molding plastic products only cooling solidification to a certain rigidity, after demolding to avoid plastic products due to external deformation
Demoulding is the last step in an injection molding cycle. In order to ensure the quality of the product, we should choose the proper way of demoulding according to the structural characteristics of the product.
