The company has a group of cooperation teams engaged in the How do you make a plastic mold? industry for many years, with dedication, innovation spirit and service awareness, and has established a sound quality control and management system to ensure product quality.
Basics: One of the most important parts of building a mold that is capable of making millions of part, is the mold design. In this instructable we will take look at the pig picture when designing and building molds. We will break down 10 future lessons into the following lessons.
Plastics are essentially squeezed into a chamber with a machine that takes small pellets and melts them before it is pushed into the cavity. Cooling is routed thru the mold to make the process run super fast. If you find that you need lots of parts, you can add multiple cavities or a pattern of cavities. One can imaging when plastic molecules are cooling, then tend to shrink from a liquid state to a solid state. Molds must accommodate for these changes, so the cavities and cores are scaled up so the plastic will shrink back to size. We will refer to this subject as shrinkage.
These cavities and cores are mounted in a mold base where small pins are used to knock the plastic parts out of a cavity or core. The core is traditionally on the "B" side of the mold. This is also refereed to as the ejector side of the mold. The cavity is on the "A" side of the mold or the hot side. That is the fixed and stationary in the molding machine when it is bolted down. We traditionally inject the plastic into this "A" side of the mold.
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