This video demonstrates how to test plastic injection mold cooling circuits. After plastic injection mold manufacturing is complete, testing is essential, and water flow testing is a key method.
The purpose of plastic injection mold water flow design is to ensure that the plastic is injected into the plastic injection mold at a molten state of 200-280°C and ejected after cooling and solidifying to approximately 60°C. During this process, only a minimal amount of heat is dissipated into the atmosphere through convection and radiation; the majority of the heat is removed by the cooling medium (water). Temperature control significantly affects the deformation, shrinkage, and dimensional stability of plastic parts. Furthermore, cooling time accounts for approximately two-thirds of the entire mold injection cycle. Therefore, plastic injection molds require an optimized water flow system to produce high-quality parts in the shortest possible time.
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