Ice Bucket Injection Mould

2. For PC transparent injection molding, due to the high viscosity of PC material, high melting temperature and poor fluidity, injection molding is performed at a higher temperature during injection molding processing. Relatively speaking, the material temperature adjustment range is narrow, and the processability is not as good as . The injection pressure has little effect on the fluidity, but due to the viscosity, the injection pressure still needs to be larger, but in order to prevent internal stress, the holding time should be shortened as much as possible.

PC injection molded parts have large shrinkage and stable dimensions, but the internal stress of the product is large and easy to crack. Therefore, it is better to use elevated temperature instead of pressure to improve fluidity, and from increasing mold temperature to improving mold structure and post-processing to reduce possibility of cracking. In the case of low injection speed and defects such as ripples at the gate, the temperature of the radiation nozzle should be controlled separately, the temperature of the mold should be increased, and the resistance of the runner and gate should be reduced.

3. During PET injection molding, due to the high temperature required for molding, the temperature adjustment range is narrow, but after melting, because of its good fluidity, the processability is poor, and an anti-spreading device needs to be added in the nozzle. The mechanical strength and performance after injection molding are not high, and the performance must be improved by stretching process and modification. Precise control of mold temperature to prevent deformation. important factor, it is recommended to use a hot runner mold. If the mold temperature is too high, the surface gloss will be poor and the mold release will be difficult.