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Assembly technology of impregnated diamond bit

A technology of impregnated diamond and assembly process, applied in the field of assembly process of impregnated diamond drill bits, can solve the problems of low strength, falling off, cracks, etc.

Inactive Publication Date: 2014-12-10
长兴巨大勘探机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The matrix needs to be manually assembled with powder before sintering. The matrix strength of the prior art assembly process is not high, and the drill bit is prone to cracks or even fall off when it is working. The matrix assembly process affects the performance of the impregnated diamond bit after sintering.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A kind of assembling process of impregnated diamond drill bit of the present invention, comprises the following steps:

[0022] 1) Die matching: select the bottom mold and mold core of the graphite mold according to the size of the carcass, and gently tap the mold core into the small hole of the bottom mold until the large end surface of the mold core touches the plane of the bottom mold;

[0023] 2) Assemble the jig: put the jig into the assembled graphite mold, and clean up the impurities on the jig;

[0024] 3) Preparing impregnated block powder: prepare impregnated block powder equal to the number of nozzles, weigh each portion of powder according to the requirements of hardness and impregnated block volume, and add absolute alcohol to each portion of powder Stir until moist;

[0025] 4) Filling the impregnated block powder: fill the impregnated block powder in step 3 into the nozzle gap between the graphite mold and the fixture in sequence, and spread out;

[002...

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PUM

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Abstract

The invention discloses an assembly technology of an impregnated diamond bit. The assembly technology comprises the steps that (1) a mold is allocated, (2), a clamp is assembled, (3) impregnated block powder is prepared, (4) impregnated block powder filling is carried out, (5) a gate block is installed, (6) polycrystalline diamond pasting is carried out, (7) an empty material layer is filled, (8) a steel body is assembled, and (9) drying is carried out. By the adoption of the assembly technology of the impregnated diamond bit, the impregnated diamond bit has the better strength and abrasive resistance and is longer in service life.

Description

technical field [0001] The invention relates to an assembly process of an impregnated diamond drill bit. technical background [0002] The matrix of the impregnated diamond bit is evenly covered with diamond particles. When drilling, the matrix wears out, and the diamonds are constantly exposed to capture rocks. The matrix can be completely ground all the time, and there are newly exposed diamonds for work. The carcass needs to be manually assembled with powder before sintering. The strength of the carcass in the prior art assembly process is not high, and the drill bit is prone to cracks or even fall off when it is working. The assembly process of the carcass affects the performance of the impregnated diamond drill bit after sintering. Contents of the invention [0003] The technical problem solved by the present invention provides an assembly process of the impregnated diamond drill bit, so that the impregnated diamond drill bit has better strength, wear resistance and l...

Claims

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Application Information

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IPC IPC(8): B22F7/08
Inventor 倪曙光
Owner 长兴巨大勘探机械有限公司
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