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注塑生产的条件对产品有哪些影响

2022-05-24

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简单来说，塑胶原材料的性能复杂性决定了注塑生产过程的复杂性。塑料材料的性能由于不同的品种、不同的注塑生产加工条件、不同的等级、甚至不同的批次。不同的注塑性能参数会导致不同的结果。

注塑生产时间对成型过程的影响表现三个方面

（1）由于塑料熔体的剪切特性，会降低熔体的粘度，为了充满型腔，所需要的注塑压力也要不断降低。

（2）还应增加填充型腔所需的注射压力

（3）剪切加热越大，通过热传导耗散的热量越少，因此熔体的温度越高，粘度越低，填充空腔所需的注射压力越低。

注射温度也是个问题。熔体流入冷却的空腔，由于热传导而失去热量。与此同时，剪切产生的热量可能比热传导产生的热量多或少，热传导是由多种因素引起的，主要取决于注射制模条件。另外，熔体的粘度随温度的升高而降低。因此，注塑生产时温度越高，熔体的粘度越低，所需的填充压力越低。

在整个注塑生产过程中，不同的条件对注塑产品的影响是多样化的。

注塑生产的条件对产品有哪些影响

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注塑生产的条件对产品有哪些影响

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2022-05-24

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注塑生产的条件对产品有哪些影响

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影响塑料模具加工公司交期的因素是什么？

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注塑模具加工有哪些基本要求

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塑胶注塑件表面处理之UV处理

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电镀件定模斜抽芯热流道注塑模具

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注塑加工厂家控制注塑加工成本的方法有哪些？

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