Manufacturing Industry

Marketplace.(MHI Injection Molding Machinery Inc., BMC Controls Ltd.)

Plastics News, April, 2005

Patented SCS process uses multiple cavities MHI Injection Molding Machinery Inc., which sells Mitsubishi presses, is touting a newly patented process that molds with multiple cavities, filling one part at a time. The process is called SCS, which stands for "sequential cavity separation.'' SCS allows parts with vastly different dimensions to be made using the same mold.

The technology opens and closes hot-runner valve gates to fill first one part and then another - controlling the fill velocity, pressure, position and hold time of each cavity independently. Originally, MHI used mold cavity pressure to control the process, but after beta testing, the firm discovered that not all customers had that capability. The company went back to the drawing board and...

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