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武穴黎翔机电设备有限公司，询价联系人：何女士
询价电话：0713-6542758，手机：18934630908
询价传真：0713-6542758
询价QQ: 736567721,704552157
现货特价型号：R900925687 4WRAE10W1-30-22/G24N9K31/F1V 2台
我们知道，对于汽车起重机、挖掘机、装载机等而言，其液压缸在整个工作过程中负载方向始终维持不变。下面以起重机变幅液压缸为例来探讨双阀芯的控制策略。
起重机变幅缸在工作过程中其受力，负载方向始终保持不变，因此我们可以采取液压缸有杆控用压力控制、无杆腔用流量控制的控制策略。
无杆腔流量控制是通过检测连接到无杆腔侧阀前后两侧的压差，再根据所需流入或流出流量的多少，计算出阀芯开口大小；有杆腔侧采用压力控制，使该侧维持一个低值的压力，使得更加节能、高效。
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由于我们在无杆腔采用了流量控制，因此原控制系统中所用的平衡阀可用一个液控单向阀来代替。这样可消除因平衡阀所带来的系统不稳定，从而提高系统稳定性。
（2）负载方向在工作过程中发生改变
在这种情况下，采取“进油侧压力
力士乐原装阀价格非常优势，欢迎来电咨询！
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控制，出油侧流量控制”，在液压缸有杆腔侧用压力控制，无杆腔侧有流量控制。
如负载方向不变，由于出油侧采取了流量控制，我们可将双向平衡阀用液控单向阀来替换，从而提高系统的稳定性。进油侧用压力控制器来维持一个较低的参考压力，一方面提高系统效率，另一方面使系统不发生气穴。
DREE10-6X/200YMG24K31A1M 详细说明
力士乐比例阀R901272516,DREE10-6X/200YMG24K31A1M特价
力士乐比例阀R901272516,DREE10-6X/200YMG24K31A1M代表型号：
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R901266392 DREE 20-6X/315YG24K31A1M
