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

Compound nano cobalt-free hard alloy-polycrystalline cubic boron nitride film and manufacturing method thereof

A cubic boron nitride and cemented carbide technology, applied in chemical instruments and methods, metal layered products, layered products, etc., can solve problems such as the reduction of the hardness of the cubic boron nitride layer, achieve high hardness, reduce residual High bonding strength

Active Publication Date: 2010-07-07
FUNIK ULTRAHARD MATERIAL
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness of cobalt is much lower than that of cubic boron nitride particles, resulting in a decrease in the hardness of the cubic boron nitride layer

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
  • Compound nano cobalt-free hard alloy-polycrystalline cubic boron nitride film and manufacturing method thereof
  • Compound nano cobalt-free hard alloy-polycrystalline cubic boron nitride film and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The technological process of the manufacturing method of the nano cobalt-free cemented carbide-cubic boron nitride polycrystalline composite sheet of the present invention is as follows:

[0030] (1) Select ordinary cubic boron nitride for gradation combination, and carry out vacuum heating ion purification;

[0031] (2) Get nano-cubic boron nitride to account for 90% of the total mass, and nano-ceramic binder titanium carbide to account for 10% of the total mass, put them into a multidimensional high-energy ball mill and mix the ingredients for 30 minutes under an argon environment to mix and disperse Uniform, and then vacuum heating ion purification again;

[0032] (3) After the mixed molding material is press-molded and assembled with the nano-cobalt-free cemented carbide, it is assembled according to the assembly method in the accompanying drawing. First put the salt tube 7 and coat the MgO tube 4, place the square graphite sheet 3 and the steel sheet alternately o...

Embodiment 2

[0036] The technological process of the manufacturing method of the nano cobalt-free cemented carbide-cubic boron nitride polycrystalline composite sheet of the present invention is as follows:

[0037] (1) Select cubic boron nitride of 5-100 nanometers for gradation combination, and perform vacuum heating ion purification;

[0038] (2) Get nano-cubic boron nitride to account for 80% of the total mass, nano-ceramic bond titanium nitride to account for 15% of the total mass, and bond alloy aluminum to account for 5% of the total mass and put it into a multidimensional high-energy ball mill in an argon environment Mix the ingredients for 35 minutes to make the mixture evenly dispersed, and then carry out vacuum heating and ion purification again;

[0039] (3) After the mixed molding material is press-molded and assembled with the nano-cobalt-free cemented carbide, it is assembled according to the assembly method in the accompanying drawing. First put the salt tube 7 and coat th...

Embodiment 3

[0043] The technological process of the manufacturing method of the nano cobalt-free cemented carbide-cubic boron nitride polycrystalline composite sheet of the present invention is as follows:

[0044] (1) Select cubic boron nitride with a particle size of 5 to 100 nanometers for gradation combination, and perform vacuum heating ion purification;

[0045] (2) Take nano cubic boron nitride to account for 70% of the total mass, nano-ceramic binder titanium carbide to account for 20% of the total mass, and the mixed powder of bonding alloy aluminum, nickel, antimony, tin, and magnesium to account for 1% of the total mass , the mixed powder of rare earth elements cerium, neodymium and gadolinium accounted for 4% of the total mass of the cubic boron nitride layer, put it into a multi-dimensional high-energy ball mill and mixed the materials for 40 minutes in an argon environment to make the mixing and dispersion uniform, and then vacuum again heating ion purification;

[0046](3)...

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
Hardnessaaaaaaaaaa
Hardnessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a compound nano cobalt-free hard alloy-polycrystalline cubic boron nitride film, which belongs to the technical field of super-hard materials. The compound nano cobalt-free hard alloy-polycrystalline cubic boron nitride film comprises a hard alloy layer and a cubic boron nitride layer compounded on the hard alloy layer, wherein the cubic boron nitride layer is prepared through mixing and sintering of nano cubic boron nitride and a bonding agent, and the hard alloy is nano cobalt-free hard alloy. Due to the preparation of the compound nano cobalt-free hard alloy-polycrystalline cubic boron nitride film with the nano hard alloy and the nano cubic boron nitride and the corresponding toughening and strengthening process, the invention can make the compound cubic boron nitride film cutter have high hardness, wear resistance, high toughness and high strength.

Description

technical field [0001] The invention belongs to the technical field of superhard materials, and in particular relates to a nano cobalt-free cemented carbide (nano WC)-cubic boron nitride (nano cBN) polycrystalline composite sheet and a manufacturing method thereof. Background technique [0002] The cubic boron nitride polycrystalline composite sheet not only has the excellent quality of cubic boron nitride, but also has the impact toughness of cemented carbide, so it has such advantages as: high hardness, wear resistance and impact toughness, high The advantages of thermal stability, chemical stability, good thermal conductivity and low friction coefficient are currently widely used in various high-hardness materials (such as tool steel, high-speed steel, bearing steel, powder metallurgy, powder metallurgy metal, stainless steel, High-strength steel, high manganese steel, cast iron, titanium alloy, etc.) and certain high-speed cutting fields. With the advancement of materia...

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): B32B15/04B32B9/04B22F7/02C04B35/5831C04B35/622
Inventor 李剑李和鑫
Owner FUNIK ULTRAHARD MATERIAL
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