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How to choose the pick of rotary drilling rig
Release time:
2023-06-21
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With the rapid development of the domestic rotary drilling industry, the demand for rotary drilling rigs is also increasing. Especially in recent years, the domestic demand for rotary drilling rig is rising year by year. Because of this, the domestic demand for rotary drilling rig picks is also increasing. Today to tell you, how to choose rotary drilling rig pick! The ancients said: "sharpen a knife and cut firewood by mistake" is still useful today in the progress of science and technology. Choose a good rotary drilling rig pick can effectively improve work efficiency, so as to make greater profits for manufacturers. And a quality poor rotary drilling rig pick, it will bring endless trouble to the manufacturers. How to choose a good rotary drilling rig pick, this is every manufacturer must learn the skills. Tip one: do not buy more graphite impurities pick Most of the domestic rotary drilling rig pick manufacturers do not meet the standards, the most important of which is reflected in the excessive graphite impurities, and excessive graphite impurities will cause the pick hardness does not meet the standard, resulting in fracture, crushing and other phenomena. This is not sensational, in the actual use of the process, such a situation is more common. In order to save the cost of coal mining, many manufacturers often do not pay attention to the choice of picks, so they will choose some rotary drilling rig picks with poor quality. These picks are often defective products produced by some unknown domestic manufacturers in the manufacturing process, containing a large amount of graphite impurities and uneven grain distribution, which leads to insufficient hardness of rotary drilling rig picks. In the actual use of the process, the rotary drilling rig pick will produce a high stress state, encountered hard coal mines, rocks and other objects will be broken. Skill 2: Large stress leads to pick fragmentation. At present, most of the domestic rotary drilling rig pick manufacturers use copper and zinc brazing materials. The welding temperature of this material can generally reach more than 900 degrees, and the expansion coefficient generated between the metals is large, so there will be great tensile stress. In the process of using rotary drilling rig pick, due to the high temperature of the pick, the tensile stress generated by these copper and zinc brazing materials will lead to a great load on the pick, some of which come from the coal mine with strong hardness outside the pick, and the other part is the tensile stress from itself, so it is easy to break the pick.
With the rapid development of the domestic rotary drilling industry, the demand for rotary drilling rigs is also increasing. Especially in recent years, the domestic demand for rotary drilling rig is rising year by year. Because of this, the domestic demand for rotary drilling rig picks is also increasing. Today to tell you, how to choose rotary drilling rig pick!
The ancients said: "sharpen a knife and cut firewood by mistake" is still useful today in the progress of science and technology. Choose a good rotary drilling rig pick can effectively improve work efficiency, so as to make greater profits for manufacturers. And a quality poor rotary drilling rig pick, it will bring endless trouble to the manufacturers. How to choose a good rotary drilling rig pick, this is every manufacturer must learn the skills.
Tip one: do not buy more graphite impurities pick
Most of the domestic rotary drilling rig pick manufacturers do not meet the standards, the most important of which is reflected in the excessive graphite impurities, and excessive graphite impurities will cause the pick hardness does not meet the standard, resulting in fracture, crushing and other phenomena. This is not sensational, in the actual use of the process, such a situation is more common.
In order to save the cost of coal mining, many manufacturers often do not pay attention to the choice of picks, so they will choose some rotary drilling rig picks with poor quality. These picks are often defective products produced by some unknown domestic manufacturers in the manufacturing process, containing a large amount of graphite impurities and uneven grain distribution, which leads to insufficient hardness of rotary drilling rig picks. In the actual use of the process, the rotary drilling rig pick will produce a high stress state, encountered hard coal mines, rocks and other objects will be broken.
Skill 2: Large stress leads to pick fragmentation. At present, most of the domestic rotary drilling rig pick manufacturers use copper and zinc brazing materials. The welding temperature of this material can generally reach more than 900 degrees, and the expansion coefficient generated between the metals is large, so there will be great tensile stress. In the process of using rotary drilling rig pick, due to the high temperature of the pick, the tensile stress generated by these copper and zinc brazing materials will lead to a great load on the pick, some of which come from the coal mine with strong hardness outside the pick, and the other part is the tensile stress from itself, so it is easy to break the pick.
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