Study on mechanical effect and coal pillar stability during highwall mining with auger machine 螺旋钻机开采的力学效应及煤柱稳定性研究
In present work the distribution of phosphorus in Fe-P-C-Cu-Mo alloy containing 0.6% P and its effect on properties were studied by means of Auger electron spectroscopy, scanning electron microscopy, mechanical properties test machine etc. 本研究利用俄歇能谱、扫描电镜及能谱仪等研究了含0.6%磷的Fe-P-C-Cu-Mo合金中磷的分布及其对性能的影响。
Analysis of screw auger's torque of digging pit machine by using MATLAB 基于MATLAB的挖坑机钻头转矩分析
The earth auger is the important pilling machine under construction. 螺旋钻孔机是用于基建施工中一种重要的桩工机械。