Using the reliability design method based on mathematical statistics theory, the reliability problem on calender roller rigidity was discussed in this paper.
应用建立在概率统计理论基础上的可靠性设计方法，探讨了压延机辊筒刚度的可靠性问题。
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The paper introduces the technological process of nonwoven production, analyses the working condition of non deflecting roll calender, and also studies the structural design of non deflecting roll.
The paper discusses the weaving technology, physical property finger, test result, calender about re-weaving polyamide fibre-66 dipping tire bead cloth and production technology of tire.