摘要
文章论述了膨胀密封装置的设计思想 ,结构特点与适用条件 ,介绍单体液压支柱采用膨胀密封装置后的密封性能、使用寿命 ,并对不同工艺的维修成本作了详细分析。
The paper explains the design ideas, the structure features, and application conditions. It introduces the sealing performance and the life of hydraulic props with expand-seal devices, and analyzes the service cost for the different technology in details.
出处
《煤矿开采》
2000年第2期57-58,61,共3页
Coal Mining Technology
