In order to solve the problem of brittleness of chemical barrels, it is first necessary to understand the reasons. If the materials used in chemical barrels are easily degraded, the temperature of the barrels and nozzles should be increased. It is also necessary to reduce the pre-plastic back pressure and speed of the screw to make the material slightly loose and reduce the degradation of the plastic due to shear overheating. The cavity core in the production should have a proper drafting angle. When the core is difficult to demould, the cavity temperature should be increased and the cooling time should be shortened. When the cavity is difficult to be removed, the cavity temperature should be lowered and the cooling time should be prolonged. All in all, in the process of production and processing, pay attention to temperature control, not too high or too low.
Of course, when we buy, it is best to choose the products produced by regular manufacturers, because its quality can be guaranteed. If you are unsure of the quality, you should pay attention to maintenance when using it, in order to extend its service life.