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保持压力:滑阀式换向阀都有间隙泄漏现象,只能短时间保压。当有保压要求时,可在油路上加一个液控单向阀,利用锥阀关闭的严密性,使油路长时间保压。
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液压缸的支承:在立式液压缸中,由于滑阀和管的泄漏,在活塞和活塞杆的重力下,可能引起活塞和活塞杆下滑。将液控单向阀接于液压缸下腔的油路,则可防止液压缸活塞和滑块等活动部分下滑。
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实现液压缸锁紧:当换向阀处于中位时,两个液控单向阀关闭,可严密封闭液压缸两腔的油液,这时活塞就不能因外力作用而产生移动。
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大流量排油:液压缸两腔的有效工作面积相差很大,在活塞退回时,液压缸右腔排油量骤然增大,此时若采用小流量的滑阀,会产生节流作用,限制活塞的后退速度;若加设液控单向阀,在液压缸活塞后退时,控制压力油将液控单向阀打开,便可以顺利地将右腔油液排出。
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作充油阀:立式液压缸的活塞在高速下降过程中,因高压油和自重的作用,致使下降迅速,产生吸空和负压,增设补油装置。液控单向阀作为充油阀使用,以完成补油功能。
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作制动阀:在某些对启动与制动要求较严的应用场合,为避免突然加载或减速,提高平稳性,避免或减少冲击,可将带液控单向阀的液压缸用于制动。
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实现保压的措施:在需要保压的回路中,采用液控单向阀也是常用的措施之一。利用两个液控单向阀代替一个双作用液控单向阀将有助于回路的可靠运行。
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低频振荡:在大流量系统中,有时采用液控单向阀可减少系统的低频振荡
贺德克二通电磁阀WS10Z-01-C-N-24DG 插装式电磁阀
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贺德克二通电磁阀WS10Z-01-C-N-24DG 插装式电磁阀
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贺德克二通电磁阀WS10Z-01-C-N-24DG 插装式电磁阀
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