06
2022
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06
How to make the drill more durable? How to choose the drill?
As a user of drilling tools, he wants to spend less cost to obtain greater profits, which requires reducing the loss of drilling tools. Therefore, the producers and users of drilling tools should cooperate closely and discuss together to make suggestions for prolonging the service life of drilling tools.
In drilling and blasting engineering, the drill pipe is limited by the diameter of the drilling hole, and its cross-sectional area is very small. Under the condition of severe wear and corrosion medium, this slender rod needs to bear the cyclic stress of tension, compression, bending and torsion applied by the high frequency and high impact power rock drill. Depending on the size of the load, the degree of rock firmness and other different conditions, the drilling life is often more than ten hours to more than one hundred hours.drilling toolIt is an engineering tool with harsh stress conditions, short service life, high technical content and huge consumption.
Therefore, in order to prolong the service life of drill pipe and reduce the loss cost of drilling tools, not only the product itself but also the external conditions of the product should be considered, because the manufacturer produces qualified drilling tools, and the life cycle of a high-quality drill pipe goes through many processes: steelmaking-continuous casting round billet-drilling-core loading-billet opening-rolling-core pulling-finished product-forging-machining-heat treatment-surface. Although the manufacturer strictly controls every link and monitors it in real time to produce high-quality drill pipes; however, 80% of the life of a high-quality drill pipe depends on the environment and users.
Asdrilling toolUsers who want to spend less to get more profit, which requires reducing the loss of the drill. Therefore, the producers and users of drilling tools should cooperate closely and discuss together to make suggestions for prolonging the service life of drilling tools.
From the user's point of view, the selection of drilling rig products should have the following characteristics:
(1) High-quality drilling tool products: The drill tail products are usually required to have a long service life to reduce the time for disassembly and replacement of the drill tail. The requirements for drill rods and drill bits are also quite high, because drill rods will not only be lost, but also wasted drilling. Due to the high degree of automation of the hydraulic rock drill, the operator does not need to pay a lot of labor intensity in normal production, and disassembling the drill to replace the drill tail, salvaging the broken drill bit or grinding the drill bit is not only a waste of man-hours, but also increases the labor intensity and labor costs of the operator. Therefore, when users choose drill products, they not only pay attention to the price of the product, but also pay attention to the quality of the product.
(2) Better drilling speed: In the operation of the trolley, except for labor remuneration and the purchase fee of drilling tools, other man-hour costs are regarded as fixed costs, and the cost of drilling tools accounts for a higher cost in the drilling operation. Therefore, increasing the drilling speed means reducing the construction cost, so users attach great importance to increasing the drilling speed.
(3) Tighter hole inclination: In medium and deep hole drilling and blasting, hole inclination means that the charge is reduced and the hole distance is shortened, resulting in a decrease in output. Therefore, users have high requirements for the straightness of the hole, which is usually controlled within a small error range. The main reasons for the hole inclination are the hole entry error, hole calibration error anddrilling toolStraightness error when drilling. The first two kinds of errors can be basically eliminated in the full hydraulic drilling rig or computer-controlled hydraulic drilling rig, and the well deviation caused by the drilling tool structure becomes the main reason. With the deepening of drilling depth, the degree of deflection will increase, which will cause well abandonment. A better way to reduce or eliminate well deviation is to use a steerable drilling tool.
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