Two Different Types of Injection Molding
Two Different Types of Injection Molding (Below article is extracted from www.ehow.com - Two Different Types of Injection Molding) Injection molding is a manufacturing process for producing high volumes of finished parts at a low cost per part. (If you have a new product design, and you want to do massive production, you will need to make it by injection molding : which mean you need to have a mold, then producing parts from the mold.) Various plastic or rubber parts are produced in a wide range of colors. The injection molding machine injects heated molding material to the part mold through input channels. The two principal types of injection molding machines use either a cold runner channel or a hot runner channel. Cold Channel Injection Molding Cold channel injection molding machines cool the entry channel, or runner, after each part is molded and ejected. During each molding cycle a part is produced with material in the runner channel. After the part...