Unlock instant, AI-driven research and patent intelligence for your innovation.

Drill bit impregnated with diamond film and manufacturing method thereof

A technology of impregnated diamond and diamond film, applied in drill bits, earth-moving drilling, drilling equipment, etc., can solve the problem of uneven distribution and force, diamond particles falling off, affecting the wear resistance, drilling efficiency and use of diamond bits Life and other issues, to achieve the effect of easy promotion, reducing cutting adhesion, and improving drilling efficiency

Inactive Publication Date: 2012-06-20
JILIN UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different sizes of diamond particles, the uneven distribution and stress, especially along the depth, and the influence of the adhesion performance of the matrix, the diamond particles are easy to fall off and roll during the drilling process, which seriously affects the diamond drill bit. Wear resistance, drilling efficiency and service life

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drill bit impregnated with diamond film and manufacturing method thereof
  • Drill bit impregnated with diamond film and manufacturing method thereof
  • Drill bit impregnated with diamond film and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 The overall structure of the drill bit embedded with diamond film of the present invention is illustrated in conjunction with the accompanying drawings

[0037] exist Figure 1~4 Among them, 1 is the steel body, 2 is the working layer, 3 is the carcass material, 4 is the diamond film, and 5 is the diamond grain. Wherein, the diamond impregnated film 4 in the matrix material 3 constitutes the working layer 2 .

[0038] Same as the existing drill bit, the drill bit impregnated with diamond film is also composed of the steel body 1 and the working layer 2 coaxially fixed together sequentially, but the working layer 2 of the present invention is inlaid and arranged on the matrix by the diamond film 4 Composition in material 3, see figure 1 . Described diamond film 4 can be sheet-like, as image 3 ; can be columnar, such as figure 2 ; can be arranged alternately in sheets and columns, such as Figure 4 .

[0039] The length of the diamond film 4 is less ...

Embodiment 2

[0041] Embodiment 2 The structure of the drill bit with diamond crystal grains 5 embedded between the diamond films 4

[0042] Figure 5 Provide the lip surface and cross-sectional schematic diagram of the working layer of the drill bit with diamond crystal grains embedded between the diamond films of the present invention. 5 of them are diamond grains. The diamond grains 5 can be mixed and impregnated in the carcass material 3; the diamond grains 5 can also be uniformly adhered to the columnar or sheet-shaped diamond film 4 first, and then embedded in the carcass material 3, Figure 5 Shown is the structure of the latter case.

Embodiment 3

[0043] Embodiment 3 The structure of the drill bit in which the diamond film 4 acts as a gage

[0044] Figure 6 The lip surface and cross-sectional schematic diagram of the working layer of the drill bit in which the diamond film of the present invention acts as a gage are given. The surface of the diamond film 4 is exposed on the inner or / and outer side of the working layer 2, and plays a role of gage during use. The side surfaces of the columnar diamond film 4 can also be exposed on the inner and / or outer surfaces of the working layer 2, and also play the role of gage during use.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a drill bit impregnated with a diamond film and a manufacturing method thereof, belonging to the field of mechanical processing. The drill bit is formed by a steel body (1) and a working layer (2), wherein the working layer (2) comprises the chemical vapor phase deposition diamond film (4) and hard matrix material (3). The diamond film (4) is distributed in the working layer (2) according to the required form. Molding ways of the drill bit comprise one-step forming and mosaic block type two-step forming. The one-step forming relates to the sintering type hot-press diamond drill bit, and the mosaic block type two-step forming relates to the drill bit formed by firstly sintering impregnated diamond segments and then welding the sintering impregnated diamond segmentson the milled steel body. The drill bit can enhance abrasive resistance, reduces cutting adhesion, ensures the roughness and effective exposure of the bottom surface of the drill bit, and has effective gauge protection, thus improving the cutting efficiency and prolonging the service life of the tool. Compared with the common diamond drill bit, the drill bit impregnated with the diamond film has the characteristics of long service life, high drilling efficiency, long working distance, low energy consumption, strong anti-sticking rock dust capacity, etc.

Description

Technical field: [0001] The invention belongs to the field of mechanical processing, and relates to a geological drill bit used for exploration and exploitation of energy. The drill bit is made by impregnated chemical vapor deposition (CVD) diamond film. Background technique: [0002] Traditional impregnated diamond bits mostly use alloy powder as the matrix material, and diamond particles in the order of microns are evenly or randomly distributed in the matrix. Due to the different sizes of diamond particles, the uneven distribution and stress, especially along the depth, and the influence of the adhesion performance of the matrix, the diamond particles are easy to fall off and roll during the drilling process, which seriously affects the diamond drill bit. Wear resistance, drilling efficiency and service life. In addition, the shape of the bottom lip of impregnated diamond bits is designed according to the requirements of different bedrock geological bodies, because the b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/46C23C16/27C23C16/44B22F7/08
Inventor 李红东吕宪义王启亮刘军伟
Owner JILIN UNIV