结合生产实践分析了由于摩擦阻力而形成的翻板式锁气阀所固有的特性及其影响因素。
Together with the practical application of the panel turnover gas-lock valve, the factors of the inherent character with the friction effect are also given in this paper.
通过建立砂粒自锁条件及实测长石砂岩、石英砂岩与泵筒镀铬层或氮化层的滑动摩擦系数值，证实了对柱塞拉伤失效原因的推测是正确的。
The deduction is confirmed by establishing self locking conditions and determining the sliding friction coefficients between sand and chromium plating layer and between sand and nitrided surface.
安全可靠：接头设计时，考虑到上碗扣螺旋摩擦力和自重力作用，使接头具有可靠的自锁能力。
Safe and reliable: joint design, taking into account the friction on the screw and self Bowl gravity, so that a reliable self-locking joint capabilities.
安全可靠：接头设计时，考虑到上碗扣螺旋摩擦力和自重力作用，使接头具有可靠的自锁能力。
Safe and reliable: joint design, taking into account the friction on the screw and self Bowl gravity, so that a reliable self-locking joint capabilities.
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