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

a hard alloy

A technology of cemented carbide and cobalt-based alloys, which is applied in the field of metallurgy, can solve problems such as increased processing costs, excessive wear, and broken drill bits, and achieve excellent high temperature and corrosion resistance.

Active Publication Date: 2021-03-23
上海海隆石油钻具有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cemented carbide materials have high hardness and wear resistance, but during the processing, the drill bit is prone to breakage or excessive wear and needs to be replaced continuously, which increases the processing cost; in addition, the wear of the drill bit is also the main factor affecting the processing efficiency

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
  • a hard alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 3 parts carbon, 0.65 parts silicon, 0.25 parts vanadium, 0.6 parts boron, 0.15 parts antimony, 0.07 parts ytterbium, 1.9 parts aluminum, 0.1 parts niobium, 1.12 parts tin, 0.1 parts tantalum, 0.1 parts magnesium, 0.06 parts phosphorus, 85 parts iron share;

[0051] Put the above raw materials into the grinder according to the above ratio for mixing and grinding,

[0052] The speed of the grinding machine is 150r / min, and the grinding time is 1h.

[0053] Pressed under 500MPa after grinding,

[0054] Sintered at 650°C for 20min in an argon atmosphere,

[0055] After natural cooling, the cemented carbide material is obtained.

Embodiment 2

[0057] 3 parts carbon, 0.65 parts silicon, 0.25 parts vanadium, 0.6 parts boron, 0.15 parts antimony, 0.07 parts ytterbium, 1.9 parts aluminum, 0.1 parts niobium, 1.12 parts tin, 0.1 parts tantalum, 0.1 parts magnesium, 0.06 parts phosphorus, Co60 cobalt 1.5 parts of base alloy powder, 86 parts of iron;

[0058] Put the above raw materials into the grinder according to the above ratio for mixing and grinding,

[0059] The speed of the grinding machine is 150r / min, and the grinding time is 1h.

[0060] Pressed under 500MPa after grinding,

[0061] Sintered at 650°C for 20min in an argon atmosphere,

[0062] After natural cooling, the cemented carbide material is obtained.

Embodiment 3

[0064] 5 parts carbon, 0.7 parts silicon, 0.3 parts vanadium, 0.8 parts boron, 0.2 parts antimony, 0.11 parts ytterbium, 2.8 parts aluminum, 0.14 parts niobium, 1.22 parts tin, 0.13 parts tantalum, 0.15 parts magnesium, 0.09 parts phosphorus, 85 parts iron share;

[0065] Put the above raw materials into the grinder according to the above ratio for mixing and grinding,

[0066] The speed of the grinder is 200r / min, and the grinding time is 3h.

[0067] Pressed under 550MPa after grinding,

[0068] In an argon atmosphere, sinter at 850 ° C for 30 min,

[0069] After natural cooling, the cemented carbide material is obtained.

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
Login to View More

Abstract

The invention relates to a hard alloy. The hard alloy is prepared from, by weight, 0.4-5 parts of carbon, 0.6-0.7 part of silicon, 0.2-0.3 part of vanadium, 0.5-0.8 part of boron, 0.1-0.2 part of antimony, 0.04-0.11 part of ytterbium, 1.6-2.8 parts of aluminum, 0.03-0.14 part of niobium, 1.03-1.22 parts of tin, 0.05-0.13 part of tantalum, 0.06-0.15 part of magnesium, 0.04-0.09 part of phosphorus and the balance iron and unavoidable impurities. The hard alloy has the advantages of being good in rigidity, heat resistance and oxidation resistance, capable of improving the high-temperature resistance and toughness of an alloy tool, good in high-temperature resistance and corrosion resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a cemented carbide. Background technique [0002] As a new type of engineering material, steel-bonded cemented carbide (referred to as steel-bonded alloy) has both the hardness and wear resistance of carbide and the good mechanical properties of steel. It is a tool material between cemented carbide and tool steel. The performance characteristics of the steel-bonded alloy are that on the basis of maintaining high hardness and wear resistance, the strength and toughness are greatly improved, and the comprehensive performance is good, which is suitable for use under the condition of relatively large impact load. [0003] Since steel-bonded alloy contains a large amount of dispersed high-hardness hard phase, its wear resistance can be close to that of high-cobalt cemented carbide, but compared with cemented carbide, it has better toughness, lower cost, and wider applic...

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): C22C38/02C22C38/06C22C38/12C22C38/60
CPCC22C38/002C22C38/005C22C38/008C22C38/02C22C38/06C22C38/12C22C38/60
Inventor 杨晓峰张利民高斌强赵梅张晶
Owner 上海海隆石油钻具有限公司