The bending deformation of PVC profile is a common problem in the extrusion process. The main reasons are: uneven discharge of the die; insufficient cooling of the material during cooling and shaping, and inconsis...
The plasticizing device of the injection molding machine is generally equipped with an integral rotating mechanism. When assembling and disassembling the screw nozzle, screw and barrel of the injection molding mac...
In the processing of plastic products, many questions are often encountered. One of the common questions is that the screw of the injection molding machine is not fed. This kind of question: The screw is operating...
An injection molding machine usually has three screws to choose from, called A, B, and C screws, with small, medium, and large diameters. Their aspect ratios are about 22, 20, and 18. The screw length and the injection s...
Since the melting mainly occurs at the interface of the solid bed in contact with the upper melt film, its width, that is, the heat transfer area between the melt and the solid, gradually decreases with the melting proc...
Each plastic has an ideal plasticizing temperature range, and the extruder screw barrel processing temperature should be controlled to make it close to this temperature range. Granular plastic enters the barrel from the ...