How to maintain down-the-hole drill bits to extend their service life
Down-the-hole drill bits are important tools in drilling operations, and correct care and maintenance are crucial to extending their service life. Here are some suggestions to help you maintain your down-the-hole drill bit to extend its life:
Choose the right drill bit: Choose the right down-the-hole drill bit based on rock conditions (such as hardness, abrasiveness) and drilling rig type (such as high wind pressure, low wind pressure). Different forms of alloy teeth and tooth arrangements are suitable for drilling different rocks. Choosing the right drill bit is the prerequisite for obtaining ideal application results.
Correctly install the drill bit: When installing the down-the-hole drill bit, the drill bit should be gently placed into the ferrule of the DTH hammer and avoid forceful collision to avoid damaging the drill bit's tail shank or ferrule.
Make sure the air pressure is sufficient: During the drilling process, make sure the air pressure of the DTH drill is sufficient. If the hammer works intermittently or the powder discharge in the hole is not smooth, the compressed air system of the DTH drilling rig should be checked to ensure that there is no rock slag in the hole during drilling.
Avoid metal objects falling into the hole: If a metal object falls into the hole, it should be sucked out with a magnet or taken out by other methods in time to prevent damage to the drill bit.
Pay attention to the size when changing the drill bit: When changing the drill bit, pay attention to the size of the drilled hole. If the drill bit diameter is excessively worn but the hole has not yet been drilled, avoid replacing the drill bit to prevent the drill from getting stuck. This can be done using a scrap drill bit that has about the same worn diameter.
Regular maintenance and inspection: Regular inspection and maintenance of down-the-hole drill bits, including cleaning, lubrication and tightening. Check the drill bit for cracks, wear or other damage, and repair or replace damaged parts promptly.
Storage environment: Store down-the-hole drill bits in a dry, ventilated environment to avoid moisture and corrosion. At the same time, avoid exposing the drill bit to direct sunlight or high temperature to prevent material aging.
By following the above suggestions, you can effectively maintain down-the-hole drill bits, extend their service life, and improve the efficiency and quality of drilling operations. At the same time, it is also very important to regularly train and instruct operators on the correct use and maintenance of down-the-hole drill bits.
