What is a bulk molding compound? Also known as dough molding compound, this ready-to-mold material is made of glass-fiber reinforced thermoset polymers. It is typically used in compression molding but can also be used in injection and transfer molding. Its main applications are in the manufacturing ... read more
1. Strictly control the use of additives The catalyst tertiary amine used in the production of polyurethane foam will bring a strong odor and fog on the interior windows of the car. We can find these amine substitutes using polyhydroxy compounds. Polyhydroxy compounds are not only polyurethane molec... read more
There are often many new injection molding technologies in the injection molding factory. The reason for the weld line in the injection molding process is that the weld line of the plastic product is caused by the fusion of the molten resin from different directions in the injection process. During ... read more
Plastic injection molds are basically divided into static molds and dynamic molds. The one with sprue sleeve on the side of the injection head of the injection molding machine is a static mold. The static mold is generally composed of a sprue sleeve, a backing plate, and a template. Simple molds can... read more
Why does the mold generate gas when making the product? ①The material in the feeding system entrains gas or there is air in the cavity, and the gas in the runner and cavity is not discharged in time during the forming process. ②Insufficient drying in the resin contains water, which evaporates and be... read more
With registered capital of 2600,000 US dollars, Nenghai can reach an annual output value of more than 60 million.
