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injection molding apparatus, integral injection mold core, method for improving the cooling efficiency of mold core and method for manufacturing a mold core.
injection molding apparatus, integral injection mold core, method for improving the cooling efficiency of mold core and method for manufacturing a mold core.
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机译:注射成型设备,整体注射模具型芯,用于提高模具型芯的冷却效率的方法以及用于制造模具型芯的方法。
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摘要
Injection molding apparatus with each elongated cooled mold core (10) having a hollow elongated inner part (78) inside a hollow elongated outer part (80) and an integral dome shaped front cap (132). The outer surface (120) of the inner part (78) and the inner surface (126) of the outer part (80) each having cooling fluid conveying grooves (122, 128) which spiral in opposite direction. This provides very uniform cooling and forces the cooling fluid flow through the grooves (122, 128) to be very turbulent which increases cooling efficiency. It also gives the mold cores (10) additional structural strength to withstand higher injection pressures.
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