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Natural diamond impregnated bit for geological exploration and preparation method thereof

A geological exploration and diamond technology, which is applied in the direction of drill bits, drilling equipment, earthwork drilling and mining, etc., can solve the problems of thermal damage of diamonds, low utilization rate of diamonds, etc., to improve the strength, improve the fastness and utilization rate of the package, and prolong the service life The effect of longevity

Inactive Publication Date: 2010-05-26
长沙锐合钻石工具有限公司
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AI Technical Summary

Problems solved by technology

Due to the high temperature sintering (sintering temperature above 1000°C) will cause great thermal damage to the diamond, and the irregular and random arrangement of the diamonds in the matrix leads to a low diamond utilization rate, and the drilling life of the drill bit is only about 200 meters

Method used

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  • Natural diamond impregnated bit for geological exploration and preparation method thereof
  • Natural diamond impregnated bit for geological exploration and preparation method thereof

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] Coarse particle natural diamond impregnated drill bit embodiment of the present invention:

[0012] refer to figure 1 , the coarse-grained natural diamond-impregnated drill bit embodiment of the present invention comprises a steel body 3, a matrix 2 sintered on the top of the steel body, the matrix 2 is a matrix formed by sintering nano pre-alloyed powder, and the matrix 2 working layer Internally impregnated and sintered with regular and orderly arranged natural diamonds with a particle size of 1.0mm to 1.5mm;

[0013] The composition and ratio of the nano pre-alloyed powder are: Wc55%, Co10%, Ni10%, Cu25%, Zn5%.

[0014] The following describes an embodiment of a method for preparing a coarse-grained natural diamond-impregnated drill bit.

[0015] (1) Stir the nano-pre-alloyed powder evenly; (2) Put the nano-pre-alloyed mixed powder...

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Abstract

The invention relates to a natural diamond impregnated bit for geological exploration and a preparation method thereof. The coarse-grain natural diamond impregnated bit for the geological exploration comprises a steel body and a carcass sintered at the top end of the steel body, wherein the carcass is made of nano pre-alloyed powder by sintering, and natural diamonds with the grain size of 0.8 to 1.7 millimeters which are arranged regularly in order are impregnated and sintered in a working lining of the carcass. The invention also relates to a method for preparing the natural diamond impregnated bit. In the method, the natural diamonds are impregnated in the nano pre-alloyed powder carcass to improve the impregnating fastness and the utilization ratio of the natural diamonds. The speed of the natural diamond impregnated bit for drilling mud rocks, shale rocks and lime rocks can reach 5 meters per hour, and the service life of the natural diamond impregnated bit can reach 1,625 meters.

Description

technical field [0001] The invention relates to a drill bit and a preparation method thereof, in particular to a coarse-grained natural diamond impregnated drill bit for geological exploration and a preparation method thereof. Background technique [0002] At present, the known impregnated drill bits are made of 45# steel body and artificial diamond, metal powder matrix. The manufacturing method is as follows: artificial diamond and metal powder are mixed and molded, sintered on the steel body at high temperature, and then formed by machining. Due to the high temperature sintering (sintering temperature above 1000°C) will cause great thermal damage to the diamond, and the irregular and random arrangement of the diamonds in the matrix leads to a low diamond utilization rate, and the drilling life of the drill bit is only about 200 meters. Contents of the invention [0003] The object of the present invention is to provide a natural diamond-impregnated drill bit for geologi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/46B22F1/00B22F7/08C22C29/08C22C30/06C22C32/00
Inventor 谭忠诚李建强孙尚华
Owner 长沙锐合钻石工具有限公司
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