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A kind of strongly impregnated diamond drill bit matrix and preparation method of drill bit

The invention relates to a technology for impregnating diamond and diamond, which is applied to the drill bit for processing marble and its preparation field, and can solve the problems of the stability of diamond bit, the reduction of processing efficiency and processing quality, the small wear strength of diamond abrasive grains, the weak ability of diamond inlay, and the like. Achieve the effect of improving processing efficiency and processing quality, prolonging working life and high hardness

Active Publication Date: 2017-11-17
莱州市原野科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, diamond-impregnated drill bits are mainly used for the processing of high-hardness ceramic materials. In order to adapt to the processing of high-strength and high-hardness ceramics, the diamond-impregnated drill matrix is ​​usually weak in enclosing ability to diamond, so as to ensure that the diamond abrasive grains Timely exposure; because the hardness and strength of marble are smaller than ceramic materials, the wear force on diamond abrasive grains is also small, and the existing diamond-impregnated diamond is used to process marble, and the wear rate of the drill bit matrix is ​​prone to be faster than that of diamond The phenomenon of abrasive wear speed, which leads to the reduction of the stability, processing efficiency and processing quality of diamond drill bits

Method used

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  • A kind of strongly impregnated diamond drill bit matrix and preparation method of drill bit
  • A kind of strongly impregnated diamond drill bit matrix and preparation method of drill bit
  • A kind of strongly impregnated diamond drill bit matrix and preparation method of drill bit

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Raw material: 50 parts of pure Fe powder, 35 parts of pure Cu powder, 5 parts of pure Sn powder, 10 parts of pure Zn powder, 2 parts of pure Co powder, 2 parts of pure Ni powder, 0.5 part of pure La powder, 0.5 part of pure Ce powder.

[0023] Preparation method: (1) Mix the above raw materials to form a carcass, mix the diamond with a concentration of 50% with the carcass, put it into a graphite mold, control the temperature at 840 ° C, and the pressure at 14.7 MPa, and hot-press sintering; when the mixture When it is close to the plastic state, it is pressurized and sintered to form a diamond sintered body; (2) heat the diamond sintered body for 2 minutes, and then cool it to room temperature; (3) after the diamond sintered body is cooled, it is brazed and fixed on the metal substrate. into a diamond drill.

[0024] Here, "50% diamond concentration" means that the diamond concentration is 50%. The diamond concentration adopts a 400% concentration system, that is, whe...

Embodiment 2

[0026] Raw materials: 45 parts of pure Fe powder, 30 parts of pure Cu powder, 9 parts of pure Sn powder, 9 parts of pure Zn powder, 1 part of pure Co powder, 2 parts of pure Ni powder, 0.4 part of pure La powder, 0.6 part of pure Ce powder.

[0027] The preparation method refers to Example 1, the difference is that the controlled temperature is 810° C., the pressure is 14.5 MPa, and the holding time is 2.4 minutes.

Embodiment 3

[0029] Raw materials: 55 parts of pure Fe powder, 40 parts of pure Cu powder, 6 parts of pure Sn powder, 6 parts of pure Zn powder, 2 parts of pure Co powder, 3 parts of pure Ni powder, 0.6 part of pure La powder, and 0.4 part of pure Ce powder.

[0030] The preparation method refers to Example 1, the difference is that the controlled temperature is 820° C., the pressure is 14.8 MPa, and the holding time is 1.8 min.

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Abstract

The invention discloses a strong diamond-impregnated drill bit matrix and a manufacturing method of a drill bit. The strong diamond-impregnated drill bit matrix comprises, by weight, 45-55 parts of pure Fe powder, 30-40 parts of pure Cu powder, 12-18 parts of mixed powder of pure Sn and pure Zn, 3-5 parts of mixed powder of pure Co and pure Ni and 1 part of mixed powder of pure La and pure Ce, wherein the two kinds of metal in each kind of mixed powder are in any proportion. The matrix has higher hardness and higher plasticity and is high in wear resistance, high in capability of bezel setting of diamond abrasive particles, low in matrix wear speed and far lower than the wear speed of the diamond abrasive particles. The manufacturing method of the strong diamond-impregnated drill bit of the matrix includes the steps of matrix configuring, mixing with diamond, hot-pressing sintering, heat insulation, cooling and brazing. The manufactured diamond-impregnated drill bit has higher wear resistance and is used for machining marble, the machining efficiency and the machining quality can be improved, and the service life of the diamond drill bit can also be prolonged.

Description

technical field [0001] The invention relates to a drill bit for processing marble and a preparation method thereof, in particular to a matrix of a strong impregnated diamond drill bit and a preparation method of the drill bit. Background technique [0002] Marble mainly refers to metamorphic or sedimentary carbonate rocks, which are medium-hard stones. Its main chemical component is calcium carbonate, accounting for about 50% of its total content. Marble has beautiful colors and patterns, and has high compressive strength and good physical and chemical properties. It is widely distributed and easy to process. With the development of the economy, the application range of marble has been continuously expanded, and it plays an important role in people's lives; especially in the past 10 years, marble decorative plates have entered the building decoration industry in large quantities, not only for luxurious public buildings, It has also entered the decoration of the home, such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/02C22C30/06C22C30/04C22C30/00C22C26/00C22C1/05C22C38/16C22C38/10C22C38/08C22C33/02E21B10/46
CPCC22C1/05C22C26/00C22C30/00C22C30/02C22C30/04C22C30/06C22C33/0278C22C38/002C22C38/005C22C38/008C22C38/105C22C38/16E21B10/46
Inventor 高超吴国荣王生
Owner 莱州市原野科技有限公司