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

Plate-shaped tungsten carbide-cobalt alloy and preparation method thereof

A tungsten carbide and cobalt alloy technology, applied in the field of materials, can solve problems such as difficult control of carbon content, uneven particle size distribution of plate-shaped tungsten carbide-cobalt alloy, and restrictions on the industrial application of plate-shaped tungsten carbide-cobalt alloy

Active Publication Date: 2019-01-25
CHONGYI ZHANGYUAN TUNGSTEN
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the related art, the method for preparing plate-shaped tungsten carbide-cobalt alloy has the problems that the carbon content is difficult to control and the particle size distribution of the prepared plate-shaped tungsten carbide-cobalt alloy is not uniform, which seriously affects the production of plate-shaped tungsten carbide-cobalt alloy. Mechanical properties limit the industrial application of plate-like tungsten carbide-cobalt alloys

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
  • Plate-shaped tungsten carbide-cobalt alloy and preparation method thereof
  • Plate-shaped tungsten carbide-cobalt alloy and preparation method thereof
  • Plate-shaped tungsten carbide-cobalt alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Method for preparing plate-shaped tungsten carbide-cobalt alloy

[0052] Add 100g of tungsten powder with a particle size of 5 μm into a ball milling tank for flattening treatment. Wet ball milling is used, with alcohol as the ball milling medium, the ball to particle ratio is 10:1, the ball milling speed is 250r / min, and the ball milling time is 36h. After ball milling, a vacuum drying oven was used for drying at a drying temperature of 60°C and a drying time of 8 hours.

[0053] Add the flattened tungsten powder, superfine WC-Co powder, cobalt powder, carbon black and paraffin into the ball mill according to the stoichiometric ratio that the mass percentage of cobalt in the formed plate-shaped tungsten carbide-cobalt alloy is 10%. Mix in tank. Among them, the mass percentage of ultra-fine WC-Co powder is 5%, and the particle size is 0.4 μm; the particle size of cobalt powder is 0.85 μm, the particle size of carbon black is 0.3um, and the amount of carbon black added ...

Embodiment 2

[0057] Method for preparing plate-shaped tungsten carbide-cobalt alloy

[0058] Add 100g of tungsten powder with a particle size of 5 μm into a ball milling tank for flattening treatment. Wet ball milling is used, with alcohol as the ball milling medium, the ball to particle ratio is 10:1, the ball milling speed is 250r / min, and the ball milling time is 36h. After ball milling, a vacuum drying oven was used for drying at a drying temperature of 60°C and a drying time of 8 hours.

[0059] Add the flattened tungsten powder, superfine WC-Co powder, cobalt powder, carbon black and paraffin into the ball mill according to the stoichiometric ratio that the mass percentage of cobalt in the formed plate-shaped tungsten carbide-cobalt alloy is 10%. Mix in tank. Among them, the mass percentage of ultrafine WC-Co powder is 10%, and the particle size is 0.4 μm; the particle size of cobalt powder is 0.85 μm, and the particle size of carbon black is 0.3 μm, and the amount of carbon black a...

Embodiment 3

[0063] Method for preparing plate-shaped tungsten carbide-cobalt alloy

[0064] Add 100g of tungsten powder with a particle size of 5 μm into a ball milling tank for flattening treatment. Wet ball milling is used, with alcohol as the ball milling medium, the ball to particle ratio is 10:1, the ball milling speed is 250r / min, and the ball milling time is 36h. After ball milling, a vacuum drying oven was used for drying at a drying temperature of 60°C and a drying time of 8 hours.

[0065] Add the flattened tungsten powder, ultrafine WC-Co powder, cobalt powder, carbon black and paraffin into the ball mill tank according to the stoichiometric ratio of 10% cobalt content in the formed plate-shaped tungsten carbide-cobalt alloy. mix. Among them, the mass percentage of ultra-fine WC-Co powder is 20%, and the particle size is 0.4 μm; the particle size of cobalt powder is 0.85 μm, and the particle size of carbon black is 0.3 μm, and the amount of carbon black added is the plate shap...

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 plate-shaped tungsten carbide-cobalt alloy and a preparation method thereof. The method comprises the following steps: enabling a raw material mixture to be subjected to sintering treatment so as to obtain the plate-shaped tungsten carbide-cobalt alloy, wherein the raw material mixture contains superfine WC-Co powder, and in the raw material mixture, the grain sizes of at least 90% or more of the superfine WC-Co powder are not greater than 800 nm. The method is simple and convenient to operate, easy to realize, relatively low in cost and easy to industrialize, and the prepared plate-shaped tungsten carbide-cobalt alloy has relatively uniform particle sizes and excellent mechanical properties.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a plate-shaped tungsten carbide-cobalt alloy and a preparation method thereof. Background technique [0002] High-strength, high-toughness "double-high" cemented carbide is one of the development directions of high-performance tungsten-based materials. However, the strength of cemented carbide is mainly provided by the hard phase such as tungsten carbide, while the toughness is mainly provided by the bonding phase such as cobalt, which leads to the mutual restriction of the strength and toughness of traditional cemented carbide. The crystal structure of tungsten carbide is a hexagonal structure, with three characteristic crystal planes (0 0 0 1) axial plane, (01 1 0) I facet and (1 0 1 0) II facet, and its crystal growth is typical Anisotropic growth. Since the hardness of the (0 0 0 1) axial surface of tungsten carbide is higher than that of the facet, by increasing the rati...

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): C22C29/08C22C1/05C22C1/10
CPCC22C1/058C22C29/005C22C29/067C22C29/08
Inventor 羊求民赵立夫傅雨王红云杨诚辉林丽萍
Owner CHONGYI ZHANGYUAN TUNGSTEN
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