2015年4月2日星期四

Plastic molds making

plastic molds 
 
 
Injection molding comes in several different varieties,but can basically be described as forcing liquid plastic into a metal mold under high pressure. Make plastic molds is done with high temperature molten plastic, and then it quickly cools inside the mold. The part is taken out of the mold, and then the process is repeated. The benefit of this technology is that thousands or millions of components can be made very quickly, and inexpensively. The downside of this technology is that the MASTER plastic molding factory is usually costly. (lots of variables here- design life of mold, cycle time, etc) Usually you would use this technology to make thousands, or tens of thousands of parts- this makes the cost of the mold very small on a per part basis.

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