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

High wear-resistant cemented carbide for drilling tool and preparation method of high wear-resistant cemented carbide

A hard alloy, high wear-resistant technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems that are difficult to meet the requirements of hardness and wear resistance, and achieve not easy chipping, high edge strength, strength and The effect of hardness improvement

Inactive Publication Date: 2019-02-15
HUNAN UNIV OF TECH
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, traditional cemented carbide drilling tools are difficult to meet higher hardness requirements and wear resistance requirements

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The cemented carbide for high wear-resistant drilling tools of this embodiment is prepared by the following raw materials in terms of mass percentage: 20Wt.% of cobalt powder and nickel powder, 55Wt.% of titanium carbide and silicon carbide, and 12Wt of tantalum carbide. %, manganese oxide is 5Wt.%, slag remover and spheroidizing agent are 3Wt.%, molding agent is 5Wt.%; among them, the mass ratio of cobalt powder: nickel powder is 1:2, titanium carbide: silicon carbide The mass ratio is 1:0.3.

[0030] Among them, the particle size of cobalt powder is 0.5-1 μm, the particle size of nickel powder is 2-5 μm, the particle size of titanium carbide is 100-120 nm, the particle size of silicon carbide is 50-800 nm, and the particle size of tantalum carbide is 4-5 nm. 6 μm, the particle size of manganese oxide is 5-15 μm. The molding agent is rubber.

[0031] The preparation method of the high wear-resistant type drill tool cemented carbide of the present embodiment comprises...

Embodiment 2

[0043] The cemented carbide for high wear-resistant drilling tools of this embodiment is prepared by the following raw materials in terms of mass percentage: 30Wt.% of cobalt powder and nickel powder, 45Wt.% of titanium carbide and silicon carbide, and 15Wt of tantalum carbide. .%, manganese oxide is 3Wt.%, slag remover and spheroidizing agent are 1Wt.%, forming agent is 4Wt.%. Among them, the mass ratio of cobalt powder: nickel powder is 1:3, titanium carbide: silicon carbide The mass ratio is 1:0.2. Wherein the particle diameter of above-mentioned raw material is identical with embodiment 1.

[0044] The preparation method of the high wear-resistant type drill tool cemented carbide of the present embodiment comprises the following preparation steps:

[0045] S1. Using 1-5% alum aqueous solution, slowly add titanium carbide, silicon carbide, and tantalum carbide particles into the solution, and stir while adding. The stirring speed is 80-100r / min. At the same time, apply ult...

Embodiment 3

[0051] The hard alloy for high wear-resistant drilling tools of the embodiment is prepared by the following raw materials in terms of mass percentage: 28Wt.% of cobalt powder and nickel powder, 49Wt.% of titanium carbide and silicon carbide, and 3Wt.% of tantalum carbide. %, manganese oxide is 5Wt.%, slag remover and spheroidizing agent are 3Wt.%, forming agent is 2Wt.%. Among them, the mass ratio of cobalt powder: nickel powder is 1:2.5, titanium carbide: silicon carbide The mass ratio is 1:0.25.

[0052] Its preparation method is identical with embodiment 1.

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
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a high wear-resistant cemented carbide for a drilling tool. Cobalt powder, nickel powder, titanium carbide, silicon carbide, tantalum carbide and manganese oxide are subjected to scientific proportion, and then subjected to mixing, molding material blank injection, vacuum high-temperature pressing molding and sintering to improve the strength and hardness of the cemented carbide. According to the high wear-resistant cemented carbide for the drilling tool, structural stability and the hardness can both be greatly improved, and the wear resistance and the anti-bending strength can also be improved; and the prepared drilling tool has good wear resistance, high cutting edge strength, and a cutter edge of a cutter blade is not prone to being broken.

Description

technical field [0001] The present invention relates to an alloy technology, especially cemented carbide, and more specifically, to a cemented carbide for high wear-resistant drilling tools and a preparation method thereof. Background technique [0002] Drilling tools are the most widely used tools in industrial production. They are mainly used for drilling holes in workpieces, such as drill bits for electric drills, or for drilling holes in coal mining and oil mining, such as deep well drilling tools, oil drilling tools and more. Among them, cemented carbide drilling tools are widely used because of their excellent performance. It can not only adapt to the drilling of various complex materials, but also match high cutting speeds, and cemented carbide drilling tools also have better abrasion resistance. [0003] Traditional cemented carbide uses Co, Ni, and Fe elemental elements as the binder phase, and WC as the hard phase. As the service temperature increases, especiall...

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
IPC IPC(8): C22C29/02C22C29/00C22C1/05
CPCC22C1/051C22C29/005C22C29/02B22F2998/10B22F1/10B22F3/1007B22F3/02B22F3/225
Inventor 曾广胜
Owner HUNAN UNIV OF TECH