First, while increasing the thickness of the cold cycle time increases: for injection molding plastic products, must be cooled enough before getting out of the mold in order to avoid distortions, thereby offering greater thickness require a long cooling time. In theory, cycle time equivalent to the square of the thickness of the product, so the thicker the longer cycle time, reduce productivity leads to increased product prices. Second, section too thick will create an empty bladder, airbags and dents. If possible, should ensure uniform thickness of the product. However, if the request to change the thickness, it should be noted that, during filling, plastic (glue) will flow in the direction with the smallest flow obstruction. Uneven flow will affect the process of filling the mold to affect the aesthetic quality and the product surface.
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