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Instructions for the use of DTH drill bits
Release time:
2019-10-21
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Instructions for the use of DTH drill bits
In order to use the down-the-hole drill correctly and ensure the drilling speed and service life of the drill bit, the following points must be paid attention:
1, according to the rock conditions (hardness, abrasion) and drilling rig type (high wind pressure, low wind pressure) to choose the down-the-hole drill. Different forms of alloy teeth and tooth distribution methods are suitable for drilling different rocks. Choosing the right down-the-hole drill bit is the premise of obtaining the best use effect;
2. When installing the down-the-hole drill bit, put the drill bit into the clamping sleeve of the down-the-hole impactor smoothly, and do not collide with force, so as not to damage the tail shank of the drill bit or the clamping sleeve;
3, in the process of rock drilling, to ensure that the pressure of the down-the-hole drill is sufficient. In case of intermittent operation of the impactor or poor discharge of powder from the blast hole, check the compressed air system of the down-the-hole drilling rig to ensure that there is no rock slag in the hole during drilling;
4. If a metal object is found to fall into the hole, it should be sucked out with a magnet or taken out by other methods in time to avoid damage to the drill bit;
5. Pay attention to the size of the drilled hole when replacing the drill bit. If the diameter of the drill bit is excessively worn, but the hole has not been drilled well, do not replace the new drill bit to avoid sticking.
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