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ABOUT USShandong Yanggu Tianyue Drill Tools Co, Ltd. is a professional manufacturer of rock drilling tools in China. Our company has advanced heat treatment, inspection and testing, measurement , and experimental equipment
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PRODUCT CENTERThe products of our company include: T38, T45, T51, D32, H25, H28, H32, H35, as well as MF-ROD, extension rod, shank adapter, drill bit and supporting products specially used by hydraulic rock drilling machine.
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NEWSOur company integrates scientific research, design, production, and operation in one, owning 5 related patents (1 invention patent), 4 trademarks, the import and export right of self-operation, and passing ISO9001 certificati
How to choose picks for rotary drilling rig
Release time:
2022-12-22
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 rigs has been increasing year by year. Because of this, the domestic demand for rotary drilling rig picks is also increasing. Come and tell everyone today, how to choose rotary drilling rig picks!
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 rigs has been increasing year by year. Because of this, the domestic demand for rotary drilling rig picks is also increasing. Come and tell everyone today, how to choose rotary drilling rig picks!
The ancients said: "Sharpening a knife does not cut firewood by mistake" is still valid today with technological progress. Choosing a good rotary drilling rig pick can effectively improve work efficiency, thereby earning greater profits for the manufacturer. And a rotary drilling rig pick of unsatisfactory quality will bring endless troubles to the manufacturer. How to choose a good rotary drilling rig pick is a skill that every manufacturer must learn. the
Tip 1: Do not buy picks with a lot of graphite impurities
Most domestic manufacturers of picks for rotary drilling rigs do not meet the standards. The most important thing is that there are too many graphite impurities, and too much graphite impurities will cause the hardness of the picks to fail to meet the standard, resulting in fractures and broken phenomena. . This is not sensational, in actual use, such situations are more common.
In order to save coal digging costs, many manufacturers often do not pay attention to the selection of picks, so they will buy some poor-quality rotary drilling rig picks. These picks are often unknown in China during the manufacturing process. The defective products produced by famous manufacturers contain a large amount of graphite impurities, and the grain distribution is uneven, which leads to insufficient hardness of the rotary drilling rig picks. In the actual use process, the picks of the rotary drilling rig will be in a high stress state when they are used, and they will break when they encounter hard coal mines, rocks and other objects.
Skill 2: Too much stress causes the picks to break. At present, most of the domestic manufacturers of picks for rotary drilling rigs use copper-zinc solder. The welding temperature of this material can generally reach more than 900 degrees. The expansion coefficient produced between is relatively large, so there will be a large tensile stress. In the process of using rotary drilling rig picks, because the picks will generate high temperature, the tensile stress generated by these copper-zinc solders will cause the picks to be subjected to a large load, part of which comes from coal mines with strong outer hardness of the picks. The other part is the tensile stress from itself, so it is easy to crack the pick.
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Add : No. 229, Xihu Road, Xihu Town, Yanggu County, Shandong Province
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