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Correct operation method of diamond drill bit

Diamond drill bits are widely used by exploration experts. For hard geological structures, sometimes only diamond drill bits are used. Proper loose-drilling steps, you.
master?
(1) Do not use a diamond drill to sweep the hole, sweep the residual rock sample, sweep the core, sweep the block, sweep the head stone; (2) grasp the three musts, that is, the drilling is blocked, the light rotation fails, the rock sample is blocked, and the drilling rate drops sharply , Be sure to raise the drill bit; (3) During the drilling operation, if the drill bit is found to be rolling, do not blindly follow the trend to pressurize or dry drilling immediately, and should be raised immediately; (4) Relieve the pressure drill, straighten the drill string with galvanized steel wire rope, and then reverse the rod . Then use the cylinder to remove the drilling equipment from the bottom of the hole, and then run it to avoid sudden rotation and damage of the drill bit under light load; (5) Before drilling, the remaining ruler in the machine should be configured. During the whole process of back-drilling, the drilling equipment should not be raised from the bottom of the hole to increase the drilling tools; (6) In a relatively complex geological structure, the drilling equipment should not be raised too fast, and the cleaning fluid should be pumped into the hole anytime and anywhere. Avoid collapse caused by liposuction; (7) After the new drill is idle, be sure to carry out the original cutting. Its goal is to master the adaptability of the rock layer of the drill bit; make the lip and the bottom of the hole run-in period; erase the corners; make the size and corners of the pregnant mother’s diamond;
exposure, etc. The method is: gradually squeeze (about 1/3 of the normal working pressure), slowly rotate (about 100r/minz), and slowly increase to the normal speed after the footage is 0.2-0.3m. The first time doesn’t have to be too long, immediately.
Lift the drill to observe the wear shape of the drill bit; (8) Persistently, the drill bit will not be drilled if the following conditions occur: 1) The nominal diameter of the surface drill bit is worn by 0.2mm compared to the nominal size; when the inner diameter of the pregnant drill bit is worn by 0.4mm compared to the nominal size. 2) Very few diamonds are threshed, extruded or laser cut on table drills. 3) Surface drill diamond particles are exposed to more than 1/3. 4) Pregnant diamonds are graphitized due to micro-firing. 5) The drill bit is eccentrically worn or deformed. 6) The embryo body is defective. 7) The drain of the drill and the stainless steel sink are too small. 8) The embryo body is more severely eroded. 9) Abnormal wear of the drill bit. 10) The engine block is deformed and the wire mouth is damaged.


Post time: Apr-27-2022