液压支架用阀安标检测检验现状及分析  

Status and analysis of safety sign inspection of valves for hydraulic supports

作　　者：吴波[1,2,3] 赵忠辉[1,2,3] 

机构地区：[1]国家煤矿支护设备质量监督检验中心,北京100013 [2]煤炭科学研究总院检测研究分院,北京100013 [3]煤炭资源开采与环境保护国家重点实验室,北京10013

出　　处：《矿山机械》2013年第7期7-9,共3页Mining & Processing Equipment

摘　　要：基于液压支架用阀安标检验现状,分析得出了大流量已成为液压支架用阀技术的发展趋势。介绍了液压支架用阀失效形式主要集中体现在阀芯(或阀体)损坏、密封件损坏、压力波动值超调和阻力损失过大等,分析了失效的主要危害和原因。结果表明:目前液压支架用阀的质量仍不稳定,安全性能需进一步提高;加大安标管控,从安全准入上控制产品质量具有重要意义。Based on the Safety sign inspection status of the valve for hydraulic supports, it was concluded that large flow had become the development trend of the valve for hydraulic supports. In addition, failure forms of the valve for hydraulic supports were introduced, which mainly embodied in damage of the valve core （or body）, damage of sealings, overshoot of pressure fluctuation and great resistance loss, and the harm and causes of the main failure were analyzed. The results showed： the valve for hydraulic supports was characterized by unstable quality, its safety performance needed to further improve; to reinforce the safety sign control and control the valve quality from security access possessed important significance.

关 键 词：液压支架用阀 安标检验 安标准入 

分 类 号：TD355.4[矿业工程—矿井建设]