Reviewed the process of polyurethane production and the main influencing factors on degree of vacuum which how affected the performance of the product. And according to the own experience in production in polyurethane, the vacuum regulator in the control%简述了聚氨酯生产工艺以及过程中对真空度的主要影响因素和真空度对产品性能的影响，并且根据自身经验浅谈了在聚氨酯生产中真空度的中控调节。
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