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

Composite bonded superhard grinding wheel with high shape retention property and preparation method of composite bonded superhard grinding wheel

A compound binder and high shape retention technology, which is applied in the direction of manufacturing tools, metal processing equipment, grinding/polishing equipment, etc., can solve the problems of poor self-sharpening of grinding wheels, poor sharp corner retention, frequent dressing, etc., to reduce agglomeration, Effects of improving impact strength and abrasion resistance, improving fluidity and formability

Active Publication Date: 2020-11-13
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
View PDF12 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal-bonded grinding wheels have the advantages of high strength, good geometric shape retention of the working surface, long life, and impact resistance, but the grinding wheel has poor self-sharpening and low efficiency
Traditional resin-bonded grinding wheels have high grinding efficiency and good self-sharpening, but resin-bonded grinding wheels have disadvantages such as low heat resistance, poor sharp corner retention, and frequent dressing, which can no longer meet the needs of the industry for efficient processing

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
  • Composite bonded superhard grinding wheel with high shape retention property and preparation method of composite bonded superhard grinding wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A superhard grinding wheel with high shape retention compound binder, which is made of the following raw materials in weight percentage: polyimide resin 23%, copper powder (particle size 10μm) 31%, silicon dioxide (particle size W28) 15%, tin powder (particle size 10μm) 8%, carbon fiber 3% with an aspect ratio of 15:1, abrasive diamond 20% (particle size D64); among them, polyimide resin and carbon fiber were pre-treated as follows: In the formula, pour polyimide resin and carbon fiber with an aspect ratio of 15:1 into the steel mixing tank, add cemented carbide balls (ball diameter 5mm) twice the volume of raw material powder at a volume ratio of 1:2, and put Put the mixing tank into the planetary mixer and mix for 6 hours; put the evenly mixed material resin and carbon fiber into the abrasive tool, and press it into a cylindrical material with a diameter of 100mm and a height of 50mm on a hot press at 150°C, and then put the cylindrical material The material is turned...

Embodiment 2

[0035] A superhard grinding wheel with high shape retention composite bond, which is made of the following raw materials in weight percentage: 30% polyimide resin, 23% copper-tin pre-alloyed powder (wherein the mass ratio of copper to tin is 2:1 , particle size 15μm), silicon dioxide (particle size W28) 15%, carbon fiber with aspect ratio 15:1 7%, abrasive diamond 25% (particle size D64); among them, polyimide resin and carbon fiber are pretreated as follows Obtain: Pour polyimide resin and carbon fiber with aspect ratio 15:1 into the steel mixing tank according to the proportion in the formula, and add cemented carbide balls (ball diameter 5mm ), put the mixing tank into the planetary mixer and mix for 6 hours; put the evenly mixed material resin and carbon fiber into the abrasive tool, and press it into a cylindrical material with a diameter of 100mm and a height of 50mm on a hot press at 150°C. Then the cylindrical material is turned into powder on a common car with a singl...

Embodiment 3

[0043]A superhard grinding wheel with high shape retention composite bond, the superhard grinding wheel is made of the following raw materials in weight percentage: polyimide resin 28%, copper-tin pre-alloyed powder 20% (wherein the mass ratio of copper to tin is 4:1 , particle size 8μm), silica (particle size W28) 20%, carbon fiber 5% with an aspect ratio of 15:1, abrasive CBN 27% (particle size D64); among them, polyimide resin and carbon fiber are pre-treated as follows Obtain: Pour polyimide resin and carbon fiber with aspect ratio 15:1 into the steel mixing tank according to the proportion in the formula, and add cemented carbide balls (ball diameter 5mm ), put the mixing tank into the planetary mixer and mix for 6 hours; put the evenly mixed material resin and carbon fiber into the abrasive tool, and press it into a cylindrical material with a diameter of 100mm and a height of 50mm on a hot press at 150°C. Then the cylindrical material is turned into powder on a common c...

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
Granularityaaaaaaaaaa
Granularityaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a composite bonded superhard grinding wheel with a high shape retention property. The superhard grinding wheel is prepared from raw materials in percentage by weight as follows: 15%-45% of polyimide resin, 15%-50% of copper powder, 8%-20% of silicon dioxide, 5%-15% of tin powder, 2%-10% of carbon fibers and the balance an abrasive material. The superhard grinding wheel notonly has sharpness of a resin bonded grinding wheel, but also has the shape retention property and heat resistance of a metal grinding wheel, that is, the superhard grinding wheel has better sharpness and sharp corner retention property, the load of a grinding machine is 1%-2%, and the demand of high-efficiency machining of the industry can be met.

Description

technical field [0001] The invention belongs to the technical field of superhard grinding wheel abrasive grinding, and in particular relates to a superhard grinding wheel with high shape-retaining composite binder and a preparation method thereof. Background technique [0002] The binder used to consolidate diamond or CBN abrasive grains in the grinding wheel has three materials: resin, metal and ceramics. Metal-bonded grinding wheels have the advantages of high strength, good geometric shape retention of the working surface, long life, and impact resistance, but the grinding wheel has poor self-sharpening and low efficiency. Traditional resin-bonded grinding wheels have high grinding efficiency and good self-sharpening, but resin-bonded grinding wheels have disadvantages such as low heat resistance, poor sharp corner retention, and frequent dressing, which can no longer meet the needs of the industry for efficient processing. [0003] In order to overcome the shortcomings ...

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): B24D3/02B24D3/34B24D18/00
CPCB24D3/02B24D3/34B24D3/342B24D18/0009
Inventor 左冬华张高亮赵延军王礼华钱灌文
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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