Surface set natural diamond bit and production process

A diamond drill bit and production process technology, which is applied to drill bits, drilling equipment, earth-moving drilling and other directions, can solve the problems of difficult diamond cutting edge, weak inlay, short service life of drill bits, etc., so as to avoid incomplete utilization and protect from heat. The effect of damage and prolonging the service life

Inactive Publication Date: 2007-12-12
长沙锐合钻石工具有限公司
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Problems solved by technology

This type of drill bit has three major defects: 1. When the drill bit is used to the later stage, the diamond in the working layer cannot be fully utilized, especially when the working layer wears close to the nozzle, the nozzle becomes shallow, and the drill bit cannot be used, resulting in a lot of waste of diamond; 2. Metal The amount of powder used is large, and the cost of the drill bit is high; 3. The composition of t

Method used

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  • Surface set natural diamond bit and production process

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Embodiment Construction

[0014] Referring to the accompanying drawings, a carcass 2 is provided on a steel body 1 , and natural diamonds 3 are inlaid on the surface of the carcass 2 .

[0015] The production process adopted in the present invention is as follows: the first step, the drill matrix is ​​cold-pressed, and the natural diamond is bonded on the preformed block; the second step, the preformed block is put into the graphite mold; the third step is in the graphite mold The steel body is placed on top; the fourth step is pressureless sintering; the fifth step is machining into finished products.

[0016] Compared with the original process route, the production process of the surface-mounted natural diamond drill adopting the above-mentioned technical scheme differs in the first step and the second step of the process. The technical advantages of the present invention lie in the following points: 1. When the natural diamond placed in the first step of the process is sintered, it is often misplace...

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Abstract

The invention discloses a surface set natural diamond bit, the carcass surface is inserted with natural diamond. Its production processes are: the first step, bit carcass cold-pressed forming, and binding natural diamond on the pre-modeling blocks; the second step, putting the pre-modeling blocks into the graphite mold; the third step, laying steel body on the graphite mold; the fourth step, non-pressure sintering; the fifth step, machining and finishing the products. The surface set natural diamond bit produced through the invention cam avoid the defect of diamond can not be used fully of the ordinary man-made diamond bit working layer, the cold-pressed forming also avoids the phenomenon of metal powder leak in the heat pressing forming sintering process, the consumption of metal (or alloy) is saved. The drilling efficiency of the surface set natural diamond bit is increased 30%, the drilling life is increased 100%. The invention is a manufacture process of surface set natural diamond bit has long use life of nit, low sintering temperature and short sintering time.

Description

technical field [0001] The invention relates to a drill bit, in particular to a drill bit embedded with natural diamond on its surface, and also relates to a production process of the surface-embedded natural diamond drill bit. Background technique [0002] Diamond drill bits are widely used in geological exploration and drilling construction in departments such as geology, metallurgy, construction, hydropower, petroleum and national defense. [0003] The drill bits commonly used in the geological drilling industry are impregnated artificial diamond bits, which are mixed with various metal powders and diamonds and poured into graphite molds, and then inserted into the steel body to weld the matrix alloy formed by diamond and metal powders through intermediate frequency sintering. on a steel body. This type of drill bit has three major defects: 1. When the drill bit is used to the later stage, the diamond in the working layer cannot be fully utilized, especially when the wor...

Claims

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Application Information

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IPC IPC(8): E21B10/46B22F3/16
Inventor 李建强
Owner 长沙锐合钻石工具有限公司
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