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混凝土怎么打孔
更新时间: 2021-01-13 11:25:56  

1、混凝土打孔应使用冲击钻专用麻花钻头,切削刃为硬质合金。

2、冲击钻依靠旋转和冲击来工作。单一的冲击是非常轻微的,但每分钟40000多次的冲击频率可产生连续的力。可用于天然的石头或混凝土。

3、冲击钻工作时在钻头夹头处有调节旋钮,可调普通手电钻和冲击钻两种方式。但是冲击钻是利用内轴上的齿轮相互跳动来实现冲击效果,冲击力远远不及电锤。它不适合钻钢筋混凝土。

关键词: 混凝土 怎么 打孔

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