当前某些新型锚杆有忽视顶锚的不良倾向。作者介绍了新研制的楔管式锚杆的结构、加固原理、锚固性能、及其在现场条件下的拔拉试验与工业应用结果。
The authors described the structure of a newly - developed wedge-tube bolt, its reinforcement principles and anchoring performance, and the results of in situ pull test and productive applications.
通过对斜顶杆工作过程的逆向思考，采用拔杆为后模滑块提供动力。
Through reverse thinking of working principle of inclined push rod, this mold adopts button pole to offer power to rear mold slide block.
新型精压模的上模设有顶件装置锻件半轴的拔模斜度小锻件半轴的金属敷料少。
There is a shedder on the upper die of the new type of finish forging die so that pattern draft Angle of half axle of forging is small oversize for machining is little.
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