Red or blue markings are prone to appear when white PVC pipe fittings are processed by injection molding. The appearance of this phenomenon is related to the pouring system in the PVC pipe fitting mold.
The gate is a very important part of the PVC pipe fitting mold. Since the gate is the gateway for the material to enter the PVC pipe fitting mold, the material flow resistance is the highest here, and the temperature is the highest. Prone to discoloration on the surface of the product. Therefore, it is necessary to consider the resistance of the material flow and temperature changes in the gate design. This is why the pouring design should be followed, the gate size should be large rather than small, the gate runner should be short rather than long, and thick rather than thin.
And the design industry of the cold slug well of the PVC pipe fitting mold is very important. In addition, too high melt temperature, too fast injection speed and poor exhaust of PVC pipe fitting mold will also cause discoloration on the surface of the product. These can be solved by adjusting the temperature of the material in the PVC pipe fitting mold and related parameters.
Longxin Mold is a professional manufacturer of PVC pipe fitting molds. Our Longxin Mold has been committed to the research and development of pipe fitting mold technology, and has special experience in producing customized plastic fitting mold. If you are looking for a reliable pipe mold supplier, please contact us immediately.
Key Words: PVC Pipe Fitting Mold
Post time: Nov-25-2021