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Injection Molding - How To Fix Short Shots from Paulson Training

This is an excerpt from the "How To Fix Short Shots" lesson in the Injection Molded Part Problems and Solutions training program produced by Paulson Training Programs, Inc. More information on the complete program can be found at: http://www.paulsontraining.com/produc... The short shots lesson focuses on correcting the situation where the injection mold cavities do not completely fill resulting in a incomplete plastic part. There are several possible causes for this defect. The approach used to teach how to correct short shots is to first explain why they occur "from the plastic's point of view", then go through what plastic and/or mold conditions need to be changed to correct the problem. Finally, the specific control adjustments on the injection molding machine that will change those plastic conditions are taught. The complete Injection Molded Part Problems and Solutions course covers the causes and solutions to 11 of the most common injection molded part problems: Voids, Sink Marks, Short Shots, Flash, Weld (Knit) Lines, Splay (Silver Streaks), Jetting, Burn Marks, Warp, Cracks and Part Breakage, and Controlling Molded Part Dimensions.