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

High-density cermet material resistant to molten aluminum corrosion and manufacturing method thereof

A cermet, high-density technology, applied in the field of cermet materials and their preparation, can solve the problems of high brittleness, easy cracking limitation, etc., and achieve the effects of improving compactness, reducing production costs, and improving service life

Active Publication Date: 2014-07-23
JIANGSU ZHAOLONG ELECTRIC
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ceramic materials such as Sialon have strong corrosion resistance to molten aluminum, their brittleness, especially in alternating cold and hot conditions, is extremely easy to crack, which limits their use.

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-density cermet material resistant to molten aluminum corrosion and manufacturing method thereof
  • High-density cermet material resistant to molten aluminum corrosion and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment one: see figure 1 and figure 2 , a high-density cermet material resistant to molten aluminum corrosion, including Ti powder, Ni powder, AlN powder, TiN powder, Y2O3 powder and Al2O3 powder, and the weight percentage is 16% Ti powder, 4% Ni powder, 17% AlN powder, 8% TiN powder, 5% Y2O3 powder and 50% Al2O3 powder, the Ti powder, Ni powder, AlN powder, TiN powder, Y2O3 powder and Al2O3 powder are sintered through mixed ball milling, pressing, electric field activated hot pressing auxiliary combustion furnace Its preparation method comprises the following steps: (1) batching mixed ball milling: with Ti powder, Ni powder, AlN powder, TiN powder, Y2O3 powder and Al2O3 powder as raw materials, the purity of AlN and Al2O3 powder > 99.8%, particle size 1 micron, TiN Powder, Y2O3 powder, Ti and Ni powder with a purity of >99.8% and a particle size of 0.5 microns are loaded into a ball mill according to the weight percentage, the ball milling medium is ethanol, and ...

Embodiment 2

[0032] Embodiment 2: A high-density cermet material resistant to molten aluminum corrosion, including Ti powder, Ni powder, AlN powder, TiN powder, Y2O3 powder and Al2O3 powder, and the weight percentage is 12% Ti powder, 3% Ni powder, 13% AlN powder, 7% TiN powder, 5% Y2O3 powder and 60% Al2O3 powder, the purity of the Ti powder, Ni powder, AlN, TiN, Y2O3 powder and Al2O3 powder is >99.8%, and the AlN, TiN, Y2O3 and Al2O3 The particle size of powder is 5 microns, the particle size of described Ti powder and Ni powder is 2 microns, and described Ti powder, Ni powder, AlN powder, TiN powder, Y2O3 powder and Al2O3 powder are through mixed ball milling, pressing, electric field It is sintered by activating a hot-press auxiliary combustion furnace; its preparation method is the same as in Example 1.

[0033] The density of the sample of the aluminum liquid corrosion resistant high-density cermet material of the present invention is 99.7% when tested by the drainage method.

[003...

Embodiment 3

[0037] Embodiment 3: A high-density cermet material resistant to molten aluminum corrosion, including Ti powder, Ni powder, AlN powder, TiN powder and Al2O3 powder, the weight percentage is 16% Ti powder, 4% Ni powder, 20% AlN powder, 10% TiN powder and 50% Al2O3 powder, the purity of the Ti powder, Ni powder, AlN, TiN and Al2O3 powder is >99.8%, the particle size of the AlN, TiN and Al2O3 powder is 5 microns, and the Ti The particle size of Ti powder and Ni powder is 2 microns, and described Ti powder, Ni powder, AlN powder, TiN powder and Al2O3 powder are formed through mixed ball milling, pressing, electric field activation hot-press auxiliary combustion furnace sintering; Its preparation method is the same as embodiment one.

[0038] The density of the aluminum liquid corrosion resistant high-density cermet material sample of the present invention is 99.5% when tested by the drainage method.

[0039] The average corrosion rate of two different materials after corrosion in...

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
compressive strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-density cermet material resistant to molten aluminum corrosion. The high-density cermet material comprises, by weight, 12-28% of Ti powder, 3-7% of Ni powder, 13-35% of AlN powder and 30-60% of Al2O3 powder, and the weight ratio of the Ti powder to Ni powder is 4:1. The manufacturing method includes the following steps of (1) batching, mixing and ball milling, (2) smashing and drying, (3) pressing and forming and (4) sintering, furnace cooling after sintering, discharging and demolding. The material is compact in structure, high in corrosion resistance and particularly high in molten aluminum corrosion resistance, and has important engineering application value due to the corrosion resistance in molten aluminum; the manufacturing method is simplified and low in production cost.

Description

Technical field: [0001] The invention relates to the field of molten aluminum corrosion-resistant materials, in particular to a cermet material and a preparation method thereof. Background technique: [0002] With the increase in the demand for aluminum products, the loss of materials such as liquid metal aluminum, aluminum alloy liquid containers, liquid aluminum delivery pipes, and temperature measurement protection sleeves will increase accordingly, and better aluminum liquid corrosion resistance will be obtained. Materials have very important engineering application value. Due to their strong corrosiveness, liquid aluminum and aluminum alloys put forward higher requirements on the corrosion resistance of materials such as aluminum alloy liquid, aluminum alloy liquid conveying pipelines, and aluminum liquid thermocouple protection sleeves. [0003] Alumina is an earlier researched ceramic material. The composite ceramic material based on alumina has excellent properties ...

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): C22C29/12C22C32/00C22C30/00C22C1/05
Inventor 何兆龙
Owner JIANGSU ZHAOLONG ELECTRIC
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