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Cold runner systems are an important aspect of mold design. By optimizing cold runner shapes and sizes, important molding processes such as pressure drops, polymer shearing, packing and cooling behavior, gate sealing time, and overall cycle time can be made more efficient as well.
The first lesson in the Cold Runners section includes how cold runner shapes affect material flow, the impact of cold runner shapes and sizes on injection pressures, filling velocity, shear rates, and temperatures.
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Learn the basics of mold design and how various design elements impact a molded part. Build your own Circle of Knowledge lesson by lesson.
Goals of Mold Design: Cold Runners (Level 1):
Section Description:
Cold runner systems are an important aspect of mold design. By optimizing cold runner shapes and sizes, important molding processes such as pressure drops, polymer shearing, packing and cooling behavior, gate sealing time, and overall cycle time can be made more efficient as well.
Explanations, simulations, cause and effect analyses, and the uses of various design features are covered in this section. Understanding these design features is important because they influence the moldability, function, appearance, and quality of a part.
Recommended For: Entry Level Personnel, All Personnel
Length: Lessons are approximately 15-20 minutes long each
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