Zinc oxide coated CBN (cubic boron nitride) grinding material resin grinding wheel and preparation method of zinc oxide coated CBN grinding material resin grinding wheel

A technology of resin grinding wheel and zinc oxide, applied in the field of grinding wheel, can solve the problems of high brittleness of pure phenolic resin, affecting the performance of friction material, insufficient heat resistance, etc. Effect

Inactive Publication Date: 2016-02-03
薛典荣
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure phenolic resin has defects such as high brittleness, poor toughness, high hardness, insufficient heat resistance, low strength, and high noise during

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] A zinc oxide coated CBN abrasive resin grinding wheel, which is composed of the following raw materials by weight:

[0023] Zinc nitrate 15, urea 140, sodium lauryl sulfate 0.15, phenol 90, 35% formaldehyde solution 96, boric acid 5, hexamethylenetetramine 2, aniline 13, barium stearate 10, cubic boron nitride 570, Polyvinyl alcohol 3.

[0024] A method for preparing the CBN abrasive resin grinding wheel includes the following steps:

[0025] (1) Mix the above zinc nitrate, urea and sodium lauryl sulfate, add to 5 times the water, stir evenly, add 20% of the weight of the above cubic boron nitride, magnetically stir for 26 minutes, heat to 80°C, keep stirring 120 minutes, filter, wash the filter residue with water, dry, calcinate at 400°C for 1.6 hours, and cool to obtain zinc oxide coated boron nitride powder;

[0026] (2) Mix 68% by weight of the above phenol and 70% by weight of the 35% formaldehyde solution, stir well, add sodium hydroxide, adjust the pH to 8, raise the te...

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
Thermal decomposition temperatureaaaaaaaaaa
Login to view more

Abstract

The invention discloses a zinc oxide coated CBN (cubic boron nitride) grinding material resin grinding wheel, which is prepared from the following ingredients in parts by weight: 15 to 20 parts of zinc nitrate, 140 to 200 parts of urea, 0.15 to 0.2 parts of sodium dodecyl sulfate, 90 to 100 parts of phenol, 96 to 110 parts of 35-40-percent formaldehyde solution, 5 to 7 parts of boric acid, 2 to 6 parts of hexamethylenetetramine, 13 to 20 parts of aniline, 10 to 20 parts of barium stearate, 570 to 600 parts of elboron and 3 to 4 parts of polyvinyl alcohol. The zinc oxide protective barrier coating has the advantages that the heat resistance of the boron nitride can be obviously improved; the main reason is that the zinc oxide coating blocks the contact of boron nitride and oxygen gas, and controls the high-temperature oxidization of the boron nitride; meanwhile, the zinc oxide cannot generate the corrosion effect on the boron nitride.

Description

technical field [0001] The invention relates to the technical field of grinding wheels, in particular to a zinc oxide-coated CBN abrasive resin grinding wheel and a preparation method thereof. Background technique [0002] With the continuous improvement of the speed of automobiles and airplanes, the requirements for friction materials such as transmission and braking are more stringent, and the matrix, as an important part of friction materials, has always been the focus of development and research. Phenolic resin, epoxy resin, styrene-butadiene rubber and polytetrafluoroethylene can be used as the matrix of friction materials, but epoxy resin, styrene-butadiene rubber and polytetrafluoroethylene have poor wear resistance, heat resistance and Adhesive properties limit its application in friction materials. The advantages of phenolic resin in heat resistance, bonding performance, mechanical properties, molding performance and cost make it the most commonly used binder matri...

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): C08G8/28B24D3/28B24D3/34
Inventor 薛典荣
Owner 薛典荣
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap