The theory and test proved that the impacting frequency of hydraulic rammer can be adjusted by pipe hammer stroke. The influences of stroke on characteristics of hammer are discussed.
通过理论和实验证明改变液压夯管锤的冲击能和冲击频率，比较简单而经济的方法是调节液压夯管锤的行程，并讨论了改变行程对液压夯管锤的性能有哪些影响。
The production process, product performance, hydraulic test, technical and economic comparison and product technology requirement etc. of the new wear pipe m…
本文介绍该新耐磨管材的生产工艺、产品性能、水力试验、技术经济对比和产品技术要求等情况，以利于设计选型及推广应用。
The production process, product performance, hydraulic test, technical and economic comparison and product technology requirement etc. of the new wear pipe m…
本文介绍该新耐磨管材的生产工艺、产品性能、水力试验、技术经济对比和产品技术要求等情况，以利于设计选型及推广应用。
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