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High-strength pdc drill bit machining process

A processing technology and high-strength technology, used in drill bits, earth-moving drilling, drilling equipment, etc., can solve the problems of poor strength, low service life and high cost of steel body drill bits, and achieve the effect of improving strength and service life.

Pending Publication Date: 2022-04-12
JIANGSU BOAN TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of the steel body drill bit is poor, the cost is too high, and the service life is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1, a high-strength pdc drill processing technology, including: (1) establishing a three-dimensional model of the pdc drill body; (2) sintering the mold according to the three-dimensional model; (3) loading the metal material required for the drill into the graphite sintering mold , placed on a vibrator to vibrate; (4) Metal materials: 12-25 parts of crystalline tungsten powder, 50-60 parts of iron-nickel powder, 10-15 parts of nickel powder, 16-28 parts of ferric oxide , 8-18 parts of molybdenum oxide, 6-24 parts of copper oxide and 12-36 parts of silicon carbide; (5) Put it into the sintering furnace and heat it to 1180°C to 1200°C, and keep it warm for 1.0 to 1.5 hours; (6) After the heat preservation is over Take out the sintered drill bit and grind it into shape according to the precise size on the 3D model.

[0013] Embodiment 1, establish a three-dimensional model of the pdc drill bit, and sinter the mold according to the three-dimensional model of the ...

Embodiment 2

[0014] Embodiment 2, metal materials are: 12-20 parts of crystalline tungsten powder, 50-55 parts of iron-nickel powder, 10-12 parts of nickel powder, 20-28 parts of ferric oxide, 15-18 parts of molybdenum oxide, 15-24 parts of copper oxide and 15-36 parts of silicon carbide.

Embodiment 3

[0015] Example 3, the metal materials are: 20 parts of crystalline tungsten powder, 50 parts of iron-nickel powder, 10 parts of nickel powder, 25 parts of ferric oxide, 15 parts of molybdenum oxide, 20 parts of copper oxide and 30 parts of silicon carbide.

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PUM

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Abstract

The invention discloses a high-strength pdc drill bit machining technology. The technology comprises the steps that (1) a three-dimensional model of a pdc drill bit body is established; (2) sintering the mold according to the three-dimensional model; (3) a metal material needed by the drill bit is loaded into a graphite sintering mold and put on a vibrator to be compacted; (4) metal materials comprise 12 to 25 parts of crystalline tungsten powder, 50 to 60 parts of iron-nickel powder, 10 to 15 parts of nickel powder, 16 to 28 parts of ferroferric oxide, 8 to 18 parts of molybdenum oxide, 6 to 24 parts of copper oxide and 12 to 36 parts of silicon carbide; (5) putting into a sintering furnace, heating to 1180-1200 DEG C, and keeping the temperature for 1.0-1.5 hours; and (6) after heat preservation is finished, the sintered drill bit is taken out, and grinding forming is conducted according to the precise size on the three-dimensional model. Through the unique machining technology, the strength of the drill bit is greatly improved, and the service life of the drill bit is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of drill bits, in particular to a high-strength PDC drill bit processing technology. Background technique [0002] PDC bit is the abbreviation of polycrystalline diamond compact bit. It is a drilling tool commonly used in the geological drilling industry. In fact, its evolution evolved from diamonds. [0003] At present, in petroleum geological drilling engineering, PDC steel body drill bits have replaced matrix drill bits in large quantities due to their advantages of simple manufacturing process and low material cost, and have been widely used. However, the strength of the steel body drill bit is poor, the cost is too high, and the service life is low. Contents of the invention [0004] The main purpose of the present invention is to provide a high-strength pdc drill bit processing technology. Through the above unique processing technology, the strength and service life of the drill bit are greatly im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/46E21B41/00B22F1/00B22F5/00C22C38/00C22C38/08C22C38/12C22C38/16
Inventor 朱炜峰
Owner JIANGSU BOAN TOOLS