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

A kind of metal bond grinding tool and preparation method thereof

A metal bond and abrasive tool technology, which is applied in metal processing equipment, grinding/polishing equipment, abrasives, etc., can solve the problems of diamond holding force drop, diamond abrasive grain falling off, and insufficient high temperature performance of metal bond, so as to prevent Effects of premature detachment, increased bond strength, and altered low creep strength characteristics

Active Publication Date: 2021-01-26
GUANGDONG UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a metal bond abrasive tool and a preparation method thereof, which solves the problem of insufficient high-temperature performance of the metal bond agent when the grinding temperature of the existing metal bond abrasive tool is too high, and the decrease in the holding force of the diamond. The problem of premature shedding of grains

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
  • A kind of metal bond grinding tool and preparation method thereof
  • A kind of metal bond grinding tool and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The present embodiment is the preparation of metal bond abrasive, comprising the following steps:

[0045] FeAl powder and NiAl powder are mixed in a vacuum glove box at a weight ratio of 1:2, and the parts by weight are 87.9 parts in total, of which 29.3 parts by weight of FeAl and 58.6 parts by weight of NiAl; FeAl powder The particle size of NiAl powder is 18 μm, and the particle size of NiAl powder is 18 μm; only B element is added as a strengthening sintering aid, and its weight part is 0.1 parts, and the particle size is 10 μm; take 12 parts by mass fraction of diamond abrasive grains, and the particle size is 48 head. Put the above-mentioned metal bond and abrasive into a ball mill and mix thoroughly. The speed of the ball mill is 250r / min, the ball milling time is 3h, and the ball-to-material ratio is 10:1. Put the mixed ball-milling mixture into a cemented carbide cold-press mold for cold-press forming, the pressure is 200MPa, and the green compact density of ...

Embodiment 2

[0048] The present embodiment is the preparation of metal bond abrasive, comprising the following steps:

[0049] FeAl powder and NiAl powder are mixed in a vacuum glove box at a weight ratio of 1:2, and the parts by weight are 78.9 parts in total, of which 26.3 parts by weight of FeAl and 52.6 parts by weight of NiAl; FeAl powder The particle size of NiAl powder is 38 μm, the particle size of NiAl powder is 45 μm; the parts by weight of sintering aid are 10.1 parts in total, the parts by weight of B powder are 0.1 parts, and the particle size is 10 μm; the parts by weight of Cr powder are 2 parts , its particle size is 25 μm; the parts by weight of Si powder is 2 parts, its particle size is 25 μm; the parts by weight of Zr powder is 2 parts, its particle size is 18 μm; the parts by weight of Ti powder is 2 parts, its The particle size is 23μm; Al 2 o 3 The parts by weight of the powder are 2 parts, and its particle size is 300nm; 11 parts by mass of diamond abrasive grains ...

Embodiment 3

[0051] The present embodiment is the preparation method of metal bond grinding tool, comprises the following steps:

[0052] FeAl powder and NiAl powder are mixed in a vacuum glove box at a weight ratio of 1:2, and the parts by weight are 69.9 parts in total, of which 23.3 parts by weight of FeAl and 46.6 parts by weight of NiAl; FeAl powder The particle size of NiAl powder is 58 μm, the particle size of NiAl powder is 53 μm; the weight parts of sintering aids are 20.1 parts in total. Among them, the weight parts of B powder is 0.1 parts, and its particle size is 13 μm; the weight parts of Cr powder is 2 Parts, its particle size is 23 μm; The parts by weight of Si powder is 2 parts, its particle size is 38 μm; The parts by weight of Zr powder is 2 parts, its particle size is 23 μm; The parts by weight of Ti powder is 2 parts, Its particle size is 38μm; Al 2 o 3 The parts by weight of Cu powder is 2 parts by weight, and its particle size is 200nm; the parts by weight of Cu po...

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 diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of grinding tools, in particular to a metal bond grinding tool and a preparation method thereof. The invention discloses a metal bond abrasive tool, comprising: a metal bond and abrasives; the metal bond is FeAl powder and NiAl powder; the mass ratio of FeAl powder to NiAl powder is 1:1-1:3 . In the metal bonded abrasive tool, the mixture of FeAl powder and NiAl powder is used as the metal bond of the dry processing metal bonded abrasive tool, which can make full use of the mid-temperature strength, high-temperature creep strength and light weight, and obtain resistance during grinding. The performance of micro-scale high-temperature creep can better combine with the abrasive matrix, improve the holding force of the abrasive, and prevent the abrasive from falling off prematurely, so as to change the low creep strength characteristics of the traditional metal bond and solve the existing metal bond. When the grinding temperature of the abrasive tool is too high, the high-temperature performance of the metal bond is insufficient, the holding force of the diamond decreases, and the diamond abrasive grains fall off prematurely.

Description

technical field [0001] The invention relates to the technical field of grinding tools, in particular to a metal bond grinding tool and a preparation method thereof. Background technique [0002] In infrastructure projects such as roads, railways, water conservancy and electric power, bridges, tunnels and urban rail transit, on-site slotting, drilling and forming of objects such as concrete, complex rock formations, building walls, stone materials, microcrystalline ceramics, and glass Such processing requires a large number of high-performance metal-bonded diamond tools. The metal binders used in the manufacturing process are mainly copper, cobalt, iron, nickel and tungsten. Although the metal bond diamond abrasive has high bonding strength, good formability and long service life, it is suitable for processing hard and brittle materials. However, when the grinding temperature is too high, the high-temperature performance of the metal bond is insufficient, the holding force ...

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 Patents(China)
IPC IPC(8): B24D3/10B24D3/34B24D18/00
CPCB24D3/10B24D3/342B24D3/346B24D18/0009
Inventor 张凤林彭家万
Owner GUANGDONG UNIV OF TECH
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