Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Microcrystalline GW10u hard alloy and preparation method thereof

A cemented carbide and microcrystalline technology, applied in the field of cemented carbide, can solve problems such as poor wear resistance, increased strength, and decreased hardness, and achieve excellent performance, wide cutting range, and good product stability.

Inactive Publication Date: 2020-04-24
成都金钨硬质合金有限公司
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance characteristics of traditional cemented carbide are: the strength increases and the hardness decreases, the toughness is good but the wear resistance is poor, which can only meet part of the performance of the tool.

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
  • Microcrystalline GW10u hard alloy and preparation method thereof
  • Microcrystalline GW10u hard alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of the microcrystalline GW10u cemented carbide provided by the present embodiment comprises the following steps:

[0020] (1) Take 93.0 parts of tungsten carbide powder, 5.0 parts of cobalt powder and 2.0 parts of catalyst in mass parts, the particle diameter of the tungsten carbide powder is 0.63um, and the catalyst YH includes a mass percentage of 55:45 Agent Y (TaC, VC and Cr2C3; mass composition ratio: 2 / 3 / 2) and activator H (Re powder);

[0021] The above raw materials are fully mixed under the RD oxygen barrier medium, the RD oxygen barrier medium is anhydrous 120# gasoline solvent and SD molding agent, and the anhydrous 120# gasoline solvent accounts for 35% of the raw material quality, and the SD molding agent accounts for 35% of the raw material quality 25%;

[0022] (2) Put the mixed raw materials on a wet ball mill for ball milling for 60.0h to form a slurry;

[0023] (3) Let the slurry stand and settle for 2.5 hours, then put it into...

Embodiment 2

[0026] The preparation method of the microcrystalline GW10u cemented carbide provided by the present embodiment comprises the following steps:

[0027] (1) Take 91.0 parts of tungsten carbide powder, 6.0 parts of cobalt powder and 3.0 parts of catalyst YH in mass parts, the particle diameter of the tungsten carbide powder is 0.63um, and the catalyst YH includes 60:40 Inhibitor Y (TaC, VC and Cr2C3, mass composition ratio: 0 / 3 / 3) and activator H (Re powder);

[0028] The above raw materials are fully mixed under the RD oxygen barrier medium, the RD oxygen barrier medium is anhydrous 120# gasoline solvent and SD molding agent, and the anhydrous 120# gasoline solvent accounts for 40% of the raw material quality, and the SD molding agent accounts for 40% of the raw material quality 30%;

[0029] (2) Put the mixed raw materials on a wet ball mill for ball milling for 72 hours to form a slurry;

[0030] (3) Let the slurry stand and settle for 3 hours, then put it into a Z-type sti...

Embodiment 3

[0033] The preparation method of the microcrystalline GW10u cemented carbide provided by the present embodiment comprises the following steps:

[0034] (1) Get the tungsten carbide powder of 89.0 parts of mass parts, the cobalt powder of 7.0 parts and the catalyst YH of 4.0 parts, the particle diameter of described tungsten carbide powder and cobalt powder is 0.55um, and described catalyst YH comprises mass percent and is 50 :50 inhibitor Y (TaC, VC and Cr2C3, mass composition ratio: 3 / 3 / 1) and activator H (Re powder);

[0035] The above raw materials are fully mixed under the RD oxygen barrier medium, the RD oxygen barrier medium is anhydrous 120# gasoline solvent and SD molding agent, and the anhydrous 120# gasoline solvent accounts for 30% of the raw material quality, and the SD molding agent accounts for 30% of the raw material quality 20%;

[0036] (2) Put the mixed raw materials on a wet ball mill for ball milling for 72.0h to form a slurry;

[0037] (3) Let the slurry...

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
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses microcrystalline GW10u hard alloy. The microcrystalline GW10u hard alloy is prepared from the following raw materials in parts by mass: 89-93 parts of tungsten carbide powder,5-7 parts of cobalt powder and 2-4 parts of catalyst YH. According to the microcrystalline GW10u hard alloy, the superfine tungsten carbide powder and the cobalt powder are used as main raw materials,a trace grain inhibitor Y, a metal activator H and a combination of the trace grain inhibitor Y and the metal activator H are added, and the mixture is mixed under a unique wet grinding RD oxygen barrier medium, so that the defects of unstable performance caused by uneven structure, grain growth and unstable chemical composition of the mixture in the preparation process of the superfine hard alloy material are effectively overcome, and the GW10u hard alloy which has stable structure microcosmically and high strength and hardness macroscopically is prepared. The grade can be simultaneously suitable for machining K, N, S and H hard cutting metals, has a wide cutting range and completely covers the range specified by the existing national standard GB / T18376.1. In addition, the process is mature and simple, the product stability is good and the performance is excellent.

Description

technical field [0001] The invention relates to the technical field of hard alloys, in particular to a microcrystalline GW10u hard alloy and a preparation method thereof. Background technique [0002] Cemented carbide is an excellent tool material, because its performance tends to be more and more high-strength, high-hardness and high-temperature resistance, making it unique in the industrial tool industry, replacing traditional high-speed steel tool materials in large quantities and quickly . [0003] Cemented carbide is mostly a hard cutting tool material for cutting, and its use effect mainly depends on the performance of cemented carbide. The performance characteristics of traditional cemented carbide are: the strength increases and the hardness decreases, the toughness is good but the wear resistance is poor, which can only meet part of the performance of the tool. Contents of the invention [0004] The object of the present invention is to provide a microcrystallin...

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 Applications(China)
IPC IPC(8): C22C29/08C22C1/05
CPCC22C1/051C22C29/067C22C29/08
Inventor 张绍铁汪志超林爱丽林丽娟吴子军
Owner 成都金钨硬质合金有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com