Correct use method and precautions of H22 tapered drill rod
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Use of tapered drill rod
Both drill rod producers and rock drillers hope that the service life of rock drill rods can be used normally in order to obtain good economic benefits. For this reason, Gaea Rock Drilling Tools Co., Ltd. has the following suggestions:
One, choose the right drilling tool correctly
1. When choosing a drill rod, please be familiar with the technical performance of the rock drilling equipment you have or will have.
2. According to the rock conditions and construction conditions, the rock drilling and blasting method should be selected correctly to determine the specification and model of the drill rod, the length of the drill rod, the connection method, the type and diameter of the drill bit.
3. When there are many abnormal fractures in the selected drill rod, the blasting method should be adjusted in time and the appropriate drill rod should be selected. Such as: changing the use length of the drill rod, the section size of the drill rod, the diameter of the drill bit, etc.
4. Select the drill rod manufacturer according to the rock drilling equipment and rock drilling conditions, in order to obtain a better cost performance, that is, to obtain the maximum use benefit with the smallest head image.
2. Matters needing attention when using drill rod
1. Check the appearance quality of the drill rod. For example, whether the surface of the drill rod has defects that affect the use, whether the flatness of the drill rod is good, etc. Some of these factors are caused during the handling process. Users of slightly bent drill rods can solve it on site. Please do not use hammering when straightening.
2. Before using the drill rod, check whether the water hole is unblocked. Do not use the drill rod without the water hole. In this case, the manufacturer will provide free replacement.
3. Check the fit of the drill rod, the rock drill and the connecting parts, sometimes the early failure of the drill rod is caused by the wear of the parts of the rock drill. If the hexagonal casing of the pneumatic rock drill is severely worn, on the one hand, it will cause the drill rod to bear the eccentric impact load, causing it to break early. On the other hand, it also has the effect of accelerating the wear of the internal parts of the rock drill.
4. Skilled rock drill operators will well adjust the working status of rock drilling equipment during eye opening and rock drilling. For example, when opening the eyes, use low impact, slow propulsion, low revolutions, etc. When drilling rock, ensure that the drill rod and the blast hole are in a straight line.
5. When drilling blast holes in rock masses with broken rocks and well-developed cracks, it is best to use cross-type and button bits. Brazing the drill rod with the square leads to unnecessary loss of the drill rod. Attention should be paid to prevent the surface of the drill rod from being damaged when handling the stuck drill. The service life of the drill rod with surface damage will be greatly reduced.
6. Pay attention to the abrasion of the drill bit blade. Continue to use the abnormally damaged drill bit on the one hand will cause the drill bit to be scrapped in advance, and on the other hand, it will greatly reduce the service life of the drill rod.
7. When the drill rod is in use, there must be enough cooling water (the rock drilling equipment has certain requirements for water pressure and water volume). On the one hand, it can help you increase the drilling speed, and on the other hand, it can prevent the temperature rise during the use of the drill rod, which will change the material properties of the rod body and cause the early failure of the drill rod. When using a drill rod, do not use it as a crowbar to reduce its use value.
8. Don't hammer the drill rod with heavy objects and make inappropriate marks on the drill rod. The scars and sharp notches on the surface of the drill rod will cause the drill rod to fail early.
9. The drill rod should be stored in a dry place, such as a warehouse, to ensure that it is protected from rain and water. Similarly, after the rock drilling work is completed, the surface of the drill rod should be kept as dry as possible, and the drill rod should be erected in a drier place to prevent the service life from being shortened due to severe corrosion of the drill rod.
Recent drill rod users, as a rock drill rod manufacturer, are pleased to be able to provide you with quality rock drilling tools and services. I hope you can properly maintain and use the tools in your opponents.
