• 挤出拉伸吹塑生产技术
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挤出拉伸吹塑生产技术

  • 30/05/2018 10:20:13

挤出拉伸吹塑有一步法和二步法两种:一步法挤一拉一吹生产技术。一步挤拉吹过程,一步法挤拉吹的成型过程如图12-5所示,可分为如下四个步骤。①第一工位,由机头成型的型坯达到预定长度时, 预吹塑模具转至机头下方,截取型坯。②转回第二工位,用定径压塑法成型颈部螺纹,预吹胀…

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