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Impregnated diamond bit matrix material and method for manufacturing highly adaptable diamond bit using it

A technology of impregnated diamond and manufacturing method, which is applied to drill bits, earth-moving drilling, drilling equipment, etc., can solve the problem that it is difficult to manufacture high-performance, high-quality and universally impregnated diamond drill bits.

Active Publication Date: 2021-06-08
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] From the above analysis, it can be seen that the commonly used hot pressing method has more advantages, but it is difficult to manufacture high-performance, high-quality and universally applicable diamond-impregnated drill bits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A new type of matrix material for impregnated diamond drill bits, including skeleton material YG8 and hard bonded metal materials: FJT-06, FJT-A4, FJT-A2 pre-alloyed powder; the weight percentages are 18% and 49% respectively , 17% and 16%; the carcass materials are all superfine 320-400 mesh pre-alloyed powder materials; the selected diamond parameters: particle size 30 / 40 mesh accounts for 35%, 40 / 50 mesh accounts for 45%, 50 / 60 mesh accounts for 20% %, the diamond percentage concentration is 90%, and all diamond grades are MBD40. Carry out ball milling and mixing on the matrix material to ensure that the diamond is evenly distributed in the metal powder, ready for use.

[0024] The method for manufacturing impregnated diamond drill bits by pressureless sintering and super hot pressing comprises the following steps:

[0025] 1) Assemble the mold of the pressureless sintered diamond impregnated drill, put the prepared drill matrix material into the mold, press the dri...

Embodiment 2

[0033] A new type of matrix material for impregnated diamond drill bits, including skeleton material YG8 and hard bonded metal powder FJT-06, FJT-A4, FJT-A2 pre-alloyed powder; the weight percentages are respectively 22%, 43%, 19% and 16%; the carcass materials are all superfine 320-400 mesh pre-alloyed powder materials; the selected diamond parameters: particle size 30 / 40 mesh accounts for 45%, 40 / 50 mesh accounts for 40%, 50 / 60 mesh accounts for 15% , The diamond percentage concentration is 95%, and all diamond grades are MBD40. Carry out ball milling and mixing on the matrix material to ensure that the diamond is evenly distributed in the metal powder, ready for use;

[0034] The method for manufacturing impregnated diamond drill bits by pressureless sintering and super hot pressing comprises the following steps:

[0035] 1) Assemble the mold of the pressureless sintered diamond impregnated drill, put the prepared drill matrix material into the mold, press the drill steel ...

Embodiment 3

[0042] A new type of matrix material for impregnated diamond drill bits, including skeleton material YG8 and hard bonded metal materials: FJT-06, FJT-A4, FJT-A2 pre-alloyed powder; the weight percentages are 20% and 44% respectively , 20% and 16%; the carcass materials are all superfine 320-400 mesh pre-alloyed powder materials; the selected diamond parameters: particle size 30 / 40 mesh accounts for 35%, 40 / 50 mesh accounts for 45%, 50 / 60 mesh accounts for 20% %, the diamond percentage concentration is 90%, and all diamond grades are MBD40. Carry out ball milling and mixing on the matrix material to ensure that the diamond is evenly distributed in the metal powder, ready for use.

[0043] The method for manufacturing impregnated diamond drill bits by pressureless sintering and super hot pressing comprises the following steps:

[0044] 1) Assemble the mold of the pressureless sintered diamond impregnated drill, put the prepared drill matrix material into the mold, press the dri...

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Abstract

The invention provides an impregnated diamond bit matrix material, the content of each component of which is calculated by weight percentage: YG8 accounts for 16-24%, FJT-06 accounts for 42-52%, and FJT-A4 accounts for 16-20% , FJT‑A2 accounts for 12 to 18% and unavoidable impurities. The method for manufacturing a highly adaptable impregnated diamond drill bit comprises the steps of pressureless sintering treatment on the matrix material; cooling of the impregnated diamond bit blank; super-strong hot-pressing treatment on the impregnated diamond drill blank; The step of cooling the impregnated diamond drill body to room temperature. The present invention effectively improves the comprehensive mechanics of the impregnated diamond bit matrix material by rationally designing the matrix material components of the impregnated diamond bit and adopting a special pressureless sintering plus super hot pressing compound manufacturing method matching the components. Performance, can achieve high efficiency, long life drilling goals.

Description

technical field [0001] The invention belongs to the field of geological exploration and drilling engineering, and specifically refers to a matrix material of an impregnated diamond drill bit and a method for manufacturing a highly adaptable diamond drill bit by using the same. Background technique [0002] With the rapid development of geological exploration, geothermal exploration and shale gas new energy exploration, as well as the rapid development of deep drilling and deep geoscience research, the rock formations encountered are varied and complex, and high-performance diamond bits are required to adapt to modern Changes in drilling; especially in deep rock formations, the hardness is high, the abrasiveness is strong, the drill bit wears out quickly, and the service life of the drill bit is short, resulting in high cost for drilling construction. [0003] Before the present invention, the method for manufacturing impregnated diamond bit has main several commonly used met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F5/00C22C26/00B22F3/10B22F3/14E21B10/00
CPCB22F3/10B22F3/14B22F5/00B22F2005/001C22C26/00E21B10/00
Inventor 杨展谭松成段隆臣方小红
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)