Surface-set reamer used in geological exploration and manufacturing method thereof

A technology of geological exploration and reamer, which is applied in earthwork drilling, drilling equipment, drill bits, etc., can solve the problems of short service life of reamer, low tap density of metal powder, poor wear resistance of matrix, etc., and achieve improvement Abrasion resistance, improved tap density, and extended service life

Inactive Publication Date: 2010-05-12
长沙锐合钻石工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the tap density of the metal powder loaded in this way is small, the carcass formed

Method used

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  • Surface-set reamer used in geological exploration and manufacturing method thereof
  • Surface-set reamer used in geological exploration and manufacturing method thereof

Examples

Experimental program
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Embodiment 1

[0017] refer to figure 1 The embodiment of the surface-mounted hole reamer includes a steel body 4, the upper part of the steel body 4 is sintered and fixed with a carcass 3, and the surface of the carcass 3 is inlaid with natural diamond particles 2 and cylindrical artificial diamond polycrystals 1 in a regular and orderly manner; the carcass It is sintered by uniformly mixing 250-mesh ordinary metal powder, nano-prealloyed powder, and 180-mesh micro-artificial diamond polycrystalline particles (weight ratio: ordinary metal powder: nano-prealloyed powder: micro-polycrystalline particles = 3:3:1) ;

[0018] Cylindrical synthetic diamond polycrystal 1 has a specification of Φ2×4;

[0019] The particle size of natural diamond particle 2 is 40 grains / carat;

[0020] The weight percent composition of the nano pre-alloy is: W2C65%, Ni25%, Cu6%, Zn4%.

[0021] Manufacture: Adhere cylindrical synthetic diamond polycrystal 1 and natural diamond particles 2 to the mold regularly and...

Embodiment 2

[0024] The size of the cylindrical artificial diamond polycrystal 1 of the hole reamer in this embodiment is Φ1.5×4.

[0025] The particle size of the natural diamond particles 2 is 80 particles / carat.

[0026] The weight percent composition of the nano pre-alloy is: W2C68%, Ni22%, Cu5%, Zn5%.

[0027] The particle size of described natural diamond particle is 80 grains / carat;

[0028] The rest is the same as the embodiment.

[0029] Manufacturing method is the same as embodiment 1.

[0030] The reamer of this embodiment drills into the broken formation, and its service life reaches 3220 meters.

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Abstract

The invention relates to a surface-set reamer used in geological exploration and a manufacturing method thereof; the surface-set reamer comprises a steel body; the upper part of the steel body is sintered and fixed with a matrix, the surface of which is regularly and orderly inlaid with natural diamond particles and cylindrical artificial polycrystalline diamond; the matrix is formed by uniformly blending and sintering common metal powder with 200 meshes to 300 meshes, nanometer prealloying powder and micro-artificial polycrystalline diamond particles with 150 meshes to 200 meshes (weight ratio: common metal powder: nanometer prealloying powder: micro-polycrystalline particle is equal to 3:3:1). The invention also provides a manufacturing method of the surface-set reamer. The surface-set reamer used in geological exploration has strong abrasion performance and drills in broken strata, and the service life of the surface-set reamer reaches more than 3200 meters.

Description

technical field [0001] The invention relates to a hole reamer and a manufacturing method thereof, in particular to a natural diamond surface-embedded hole reamer for geological exploration and a manufacturing method thereof. Background technique [0002] At present, the known surface-mounted reamer is made of a steel body made of 45# steel, a carcass sintered by metal powder and natural diamond. The manufacturing method is to stick the natural diamond and synthetic diamond polycrystals on the mold in an orderly manner, fit the mold with the natural diamond and synthetic diamond polycrystals on the steel body, and fill it with ordinary metal powder (metal powder composition: W2C , Ni, Cu, Fe, Sn; particle size 200 mesh-300 mesh; the same below), and then through sintering, the natural diamond and artificial diamond polycrystals are embedded on the surface of the reamer matrix, and finally machined. However, the tap density of the metal powder loaded in this way is small, the...

Claims

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Application Information

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IPC IPC(8): E21B10/26E21B10/46B22F1/00B22F3/10
Inventor 谭忠诚李建强
Owner 长沙锐合钻石工具有限公司
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