High performance nano-composite aluminum oxide based self-lubricating cutter material and preparation method thereof

A technology of compounding alumina and tool materials, applied in the field of cutting tool materials, can solve the problems of difficulty in taking into account mechanical properties and friction properties, achieve good application prospects, optimize mechanical properties, high mechanical properties and friction and wear properties.

Inactive Publication Date: 2013-04-03
QILU UNIV OF TECH
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defect that the existing self-lubricating ceramic tool materials are difficult to balance the mechanical properties and friction properties, the present invention provides a high-performance nano-composite alumina-based self-lubricating tool material and its preparation method

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
  • High performance nano-composite aluminum oxide based self-lubricating cutter material and preparation method thereof
  • High performance nano-composite aluminum oxide based self-lubricating cutter material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] Technical scheme of the present invention is as follows:

[0007] A high-performance nano-composite alumina-based self-lubricating tool material, the volume percentage of raw materials is as follows:

[0008] Titanium carbide 25-55%; Nano calcium fluoride 5-15%; Magnesium oxide 0.5-1.5%; Aluminum oxide balance;

[0009] The micron-sized alumina powder is ball-milled to an average particle size of 1-2 μm;

[0010] The titanium carbide is a micron-sized powder, which is ball-milled to an average particle size of 1-2 μm;

[0011] The particle size range of the nanometer calcium fluoride is 15-50nm.

[0012] Preferably according to the present invention, the high-performance nano-composite alumina-based self-lubricating tool material has a volume percentage composition of raw materials as follows:

[0013] Aluminum oxide 40-55%; titanium carbide 30-50%; nano-calcium fluoride 5-15%; magnesium oxide 0.5-1%.

[0014] Preferably according to the present invention, the high-...

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
flexural strengthaaaaaaaaaa
hardnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a high performance nano-composite aluminum oxide based self-lubricating cutter material and a preparation method thereof. The high performance nano-composite aluminum oxide based self-lubricating cutter material comprises the raw materials in percent by volume as follows: 25-55% of titanium carbide, 5-15% of nano calcium fluoride, 0.5-1.5% of magnesium oxide, and the balance of aluminum oxide. The preparation method comprises the steps: first, preparing nano calcium fluoride into a dispersing liquid; then, adding MgO, Al2O3 and TiC, mixing, dispersing, ball-grinding, drying and sieving to obtain powder; and sintering by a vacuum hot-press approach. According to the invention, nanosolid lubricant CaF3 is successfully guided into a ceramic matrix crystalline grain, so that the bending strength and hardness of the self-lubricating ceramic cutter material are improved, and the breaking tenacity is improved. The self-lubricating cutter material is low in cost of material, simple in process, small in device investment, and industrialization is easy to realize.

Description

technical field [0001] The invention relates to the technical field of cutting tool materials, in particular to a high-performance nano-composite alumina-based self-lubricating tool material and a preparation method thereof. Background technique [0002] Self-lubricating tool means that the tool material itself has the functions of anti-friction, anti-wear, and lubrication, and can realize self-lubricating cutting processing without external lubricating fluid or lubricant, reduce equipment investment, avoid environmental pollution caused by cutting fluid, and realize cleanliness Therefore, the self-lubricating tool is an efficient, clean and green tool with broad application prospects in modern cutting. At present, the common self-lubricating systems in ceramic materials include Al 2 o 3 -Graphite, Al 2 o 3 -CaF 2 and TiB 2 -BN, etc., wherein the solid lubricants added in the self-lubricating ceramic tool material system are all in the micron scale. Although the tribo...

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 Applications(China)
IPC IPC(8): C04B35/117C04B35/622
Inventor 许崇海衣明东肖光春陈照强方斌魏高峰冯益华
Owner QILU UNIV OF TECH
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