Based on the structural principle of the drilling liner hangers, with the analysis of down-hole situations, the article sums a set of success experience to operate the hangers.

文章以尾管悬挂器的结构原理作为基础，结合井下情况加以分析，总结出了一套成功使用悬挂器的经验。

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The liner programming technology intensive, beware of drilling pile vacuum filling, double lock temperature.

精深的内胆规划技术，谨防钻绒真空填充，加倍锁温。

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Therefore, the liner materials should be required to have both very high surface to resist the drilling and cutting of ore and very high strength and toughness to resist impact Lord.

因此，对衬板材质的要求是：既要求具有很高的表面硬度，以抵抗矿石的凿削与切削，又要求具有很高的强度与韧性，以抵抗冲击载荷。

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