Preparation method of high-strength wear-resistant pouring material combined with ceramics

A ceramic bonding and castable technology, applied in the field of refractory materials, can solve problems such as limiting the service time of materials and material cracking, and achieve the effects of high strength, reduced consumption and wide application prospects.

Inactive Publication Date: 2012-01-25
WUHAN UNIV OF SCI & TECH
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the frequency of temperature changes increases, the microcracks formed in the material will expand and eventually cause

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

Embodiment 1

[0012] A preparation method of ceramic bonded high-strength wear-resistant castable. First, 30-40wt% fused mullite particles, 20-25wt% andalusite, 15-20wt% tabular corundum particles, 13-15wt% alumina powder, 3-5wt% pure aluminate Cement and 3~5wt% of silica powder are mixed as raw materials, and then 0.2~0.5wt% of fine feldspar mineral powder, 1~1.5wt% of heat-resistant stainless steel fiber, and 0.02~0.04wt% of poly Propylene fiber, 0.1~0.2wt% water reducing agent and 3~5wt% water, stir evenly, cast into molding, cure at room temperature for 24 hours, let stand in the air for 24 hours, and then keep it at 110℃~150℃ for 12~ Within 24 hours, the ceramic bonded wear-resistant castable can be obtained.

[0013] In this embodiment: the fine feldspar mineral powder is a mixture of potash feldspar and albite, and the water reducing agent is polycarboxylate.

Embodiment 2

[0015] A preparation method of ceramic bonded high-strength wear-resistant castable.

[0016] This embodiment is the same as embodiment 1 except that the water reducing agent is a mixture of polycarboxylate and melamine.

Embodiment 3

[0018] A preparation method of ceramic bonded high-strength wear-resistant castable. First, 40-50wt% fused mullite particles, 15-20wt% andalusite, 10-15wt% tabular corundum particles, 13-15wt% alumina powder, 5-7wt% pure aluminate Cement and 2~3wt% of silica powder are mixed as raw materials, and 0.5~1.0wt% of fine feldspar mineral powder, 1.5~2.0wt% of heat-resistant stainless steel fiber, and 0.04~0.06wt% of poly Propylene fiber, 0.2~0.3wt% water reducing agent and 5~7wt% water, stir evenly, cast into shape, cure at room temperature for 24 hours, let stand in the air for 24 hours, and then keep the temperature at 150℃~200℃ for 12~ Within 24 hours, the ceramic bonded wear-resistant castable can be obtained.

[0019] In this embodiment: the fine powder of feldspar group mineral is albite; the water reducing agent is a melamine water reducing agent.

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

No PUM Login to view more

Abstract

The invention relates to a preparation method of a high-strength wear-resistant pouring material combined with ceramics. The technical scheme is as follows: firstly taking 30-70w% of fused mullite particles, 5-25w% of andalusite, 5-20w% of tabular alumina particles, 2-15w% of alumina micro-powder, 3-12w% of pure aluminate cement and 1-5w% of silicon dioxide micro-powder as raw materials, further adding 0.2-3w% of feldspar group mineral fine powder, 1-3w% of heat-resistant stainless steel fiber, 0.02-0.1w% of polypropylene fiber, 0.1-0.5w% of water reducing agent and 3-12w% of water into the raw materials, uniformly stirring, pouring, molding, curing for 24 hours at room temperature, standing for 24 hours in air, and keeping the temperature for 8-24 hours at the temperature of 110 DEG C-300 DEG C so as to get the wear-resistant pouring material combined with the ceramics. A composite material prepared according to the invention has high strength and good wear resistance, and can betteradapt to using environments with the greater temperature change range and be used as easy-to-wear parts of equipment in cement, electric power, petrochemistry, metallurgy, coal, machinery and other industries.

Description

Technical field [0001] The invention belongs to the technical field of refractory materials. In particular, it relates to a preparation method of ceramic bonded high-strength wear-resistant castable. Background technique [0002] Casting shaped refractories occupies an important proportion in the research and application of refractory materials. Mullite corundum castable is mainly made by mixing mullite particles, corundum particles, micropowder, and other additives, binders, etc. It has good wear resistance and certain thermal shock stability. It has high strength and good wear resistance under the use conditions of about 1400 ℃. It is widely used in cement, electric power, petrochemical, metallurgy, coal, machinery Parts of equipment that are easily worn out in industries. With the development of energy saving, emission reduction and low-carbon economy, we need to increase the service life of refractory materials to reduce the consumption of raw materials to meet the require...

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): C04B35/66
Inventor 魏耀武王艳龙
Owner WUHAN UNIV OF SCI & 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