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Ceramic matrix thermocompression impregnated honeycomb body diamond drill bit

A technology of diamond drill bit and honeycomb body, which is applied in the field of diamond drill bit and ceramic matrix hot-pressed impregnated honeycomb body diamond drill bit to achieve the effects of long service life, improved mechanical performance and high drilling efficiency

Inactive Publication Date: 2018-01-16
HUBEI CUG KINGROCK CEO TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to solve the problems existing in the existing diamond drill bits in slippery formations, and provide a ceramic-based hot-pressed impregnated honeycomb diamond drill bit, which can be used in geological exploration applications in slippery formations to improve drilling efficiency and enhance purpose of service life

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  • Ceramic matrix thermocompression impregnated honeycomb body diamond drill bit
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawings and embodiments.

[0018] Such as figure 1 and figure 2 As shown, the present invention discloses a ceramic-based hot-pressed impregnated honeycomb diamond drill bit, comprising a steel body 1 and a working layer 3, a transition layer 5 is provided between the steel body and the working layer, and the working layer The honeycomb body 2 is used as the skeleton, the layer contains ceramic base powder and diamond particles, and nozzle protection layers 4 are arranged on both sides of the honeycomb body.

[0019] The above-mentioned honeycomb body is alloy steel, which greatly improves the bending strength of the ceramic-based working layer. Compared with the working layer without using honeycomb body as the skeleton, its bending strength rises from 100MPa to 800MPa, which meets the strength requirements of the drill bit.

[0020] The above-mentioned transition layer is pure m...

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Abstract

A ceramic matrix thermocompression impregnated honeycomb body diamond drill bit comprises a steel body and a working layer; a transition layer is arranged between the steel body and the working layer;and a honeycomb body serves as a framework of the working layer, the working layer contains ceramic matrix powder and diamond particles, and gate protection layers are arranged on two sides of the alloy steel honeycomb body. The alloy steel honeycomb body is put into a graphite die to serve as the drill bit matrix framework, then the evenly-mixed powder of the ceramic matrix and the diamond particles is put into the honeycomb body to serve as the working layer of the diamond drill bit, after the filling height reaches 70-80% the height of the honeycomb body, pure metal pre-alloyed powder is loaded as the transition layer, pressurization and compaction are conducted, and the steel body is erected and fixed on the transition layer; and after table pressing is finished, the product is put ona medium-frequency thermocompression sintering furnace for thermocompression and sintering, then cooling and planing of a gate slot are conducted, and the drill bit is obtained after being up to thestandards by detection. The working layer has brittleness, so that self sharpening and exposure of diamond in the drilling process are facilitated, the drilling efficiency is high, and the service life is long; and rock can be effectively incised and the problem of drilling slippage in a slipping formation is solved.

Description

technical field [0001] The invention relates to a diamond drill bit, in particular to a ceramic-based hot-pressed impregnated honeycomb diamond drill bit for slippery formations, and belongs to the technical field of tools and equipment for geological exploration. Background technique [0002] In the geological drilling of slippery formations, the diamond particles on the surface of conventional diamond bits cannot be self-sharpened after they are blunted, and the carcass is difficult to wear after the diamond particles fall off. When taking rock, the drilling efficiency is extremely low, and even slippage occurs. As far as the current diamond drill bits for slippery formations are concerned, the utilization rate of diamond is low, and the life of the drill bit is short, which seriously affects the efficiency of geological exploration work. Contents of the invention [0003] The object of the present invention is to solve the problems existing in the existing diamond dril...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/46B22F7/08
Inventor 姚邹吕仲林陈海生
Owner HUBEI CUG KINGROCK CEO TOOLS
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