熔接参数（考数值为电承插热熔，热熔时间和冷却时间。

Welding parameter. ( Reference values for electric socket welding-welding time and cooling time.

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采用了稳定耐用的热熔接方式来熔合封口，使封口更加密合。

With a stable and durable way to fusion weld heat sealed together to make sealing more encryption.

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本文利用有限元法对塑料管材的挤出进行模拟。主要讨论了影响塑料管材挤熔接痕形成的因素，以及管子冷却过程的热传递。

This essay described the FEM simulation of plastic pipe extrusion: the factors of melt line formation and heat transfer of cooling processing were mainly discussed.

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