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Due to a long time or repeated application of stress lower than the mechanical properties of plastic parts cause by the phenomenon of crack outside or inside called stress cracking; Because it is subjected to a constant load at a specific temperature; The cracks and cracks that occur when some thermoplastic parts are overexposed to heigher temperatures are called thermal stress cracking.
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Plastic parts processing mold gate location, molding cycle and other constraints on the mold structure can be predicted, as far as possible to solve or have the corresponding improvement measures. Plastic parts processing should confirm whether metal inserts need preheating or drying treatment. The purpose is to ensure product quality and forming stability.
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