Technical Information技術的な案内
Lost segments
One or more segments break off the barrel.
Cause
Solution
On a brazed bit, stopping the coolant even briefly heats the segments and destroys the brazing.
Always make sure there is enough water flow.
Excessive rotation speed heats the segments.
Match the rotation speed to the diameter.
Starting up too hard.
Always start coring gently to protect both machine and bit.
The bit was dropped on the ground.
Avoid dropping the diamond bit; the impact can crack the segment.
Steel reinforcing rod.
Ease up on feed pressure (watch the ammeter), use a higher quality bit and increase the water flow.
Not enough water to cool the bit properly.
Increase the water flow.
The drill rig is not properly anchored.
Anchor the rig correctly. Standing on the rig is not an anchoring method.
Source: Shibuya Overview Catalogue, Technical Information.