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Preparation method of high-temperature abrasion proof ceramic wafer

A high-temperature wear-resistant ceramic plate technology, which is applied in the field of composite material preparation, can solve the problems of poor use effect and achieve good economic benefits, long service life and simple process

Inactive Publication Date: 2009-10-28
重庆罗曼科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, this kind of wear-resistant ceramic coating is mainly suitable for use in the working conditions of strong erosion rather than strong impact, and in the working conditions of large fluctuations in material particle size, large material drop, and large impact force. Its use is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Select 20Kg of fused brown corundum with a particle size of 1-3mm and 20Kg of fused sub-white corundum as main materials; Active a-Al with a particle size of 325 mesh dense brown corundum 5Kg and a particle size of ≤2um 2 o 3 Powder 6Kg, particle size ≤ 200nm nano-scale micro silica fume 4Kg as auxiliary materials; choose lithium limestone 2Kg with a particle size of 180 mesh as sintering agent; add temporary binder pure calcium aluminate cement 3Kg according to 3% of the total weight of the aforementioned main and auxiliary materials Add 0.2Kg of the additive sodium hexametaphosphate according to 0.2% of the total weight of the aforementioned main and auxiliary materials; firstly put the aforementioned various dry materials into the powerful mixer, and start stirring for 10 minutes; then add 4Kg of clean water into the powerful mixer , continue to stir for 5 minutes; cast the above-mentioned wet material through the mold; put the above-mentioned cast-formed embryonic ...

Embodiment 2

[0033] The main material is 15Kg of fused brown corundum with a particle size of 1-3mm and 10Kg of fused sub-white corundum. 5Kg, 15Kg of fused sub-white corundum with a particle size of 325 mesh; select 5Kg of soft clay with a particle size of 325 mesh as the sintering agent; add 0.2Kg of sodium hexametaphosphate and zirconia as admixtures according to 0.2% of the total weight of the aforementioned main and auxiliary materials powder 0.2Kg; first put the above-mentioned various dry materials into the powerful mixer, and start stirring for 12 minutes; secondly, 2Kg of the temporary binder of sulfurous acid pulp waste liquor whose main components are calcium lignosulfonate and mass concentration 30% are added In the strong mixer, continue to stir for 8 minutes; pressure-form the above-mentioned mixed bulk materials; put the above-mentioned pressed embryonic board into the oven, dry at 275 ° C, and keep it warm for 6 hours; put the dried semi-finished product into Sintering in a...

Embodiment 3

[0035] The main material is 5Kg of fused brown corundum with a particle size of 1-3mm; the auxiliary materials are 20Kg of fused white corundum with a particle size of 0.088-1mm and 18Kg of silicon carbide, 25Kg of silicon carbide with a particle size of 180 mesh, 15Kg of silicon nitride with a particle size of 325 mesh and Boron carbide 10Kg; Choose particle size and be that 7Kg of soft clay of 325 purposes are sintering agent; Take the aforementioned main and auxiliary material gross weight as a benchmark, mix in additive sodium hexametaphosphate 0.2% respectively by 0.2% and 0.1% of the aforementioned main and auxiliary material gross weight Kg and 0.1Kg of zirconia powder; first, put the above-mentioned various dry materials into a strong mixer, and start stirring for 15 minutes; secondly, temporarily combine the main components of calcium lignosulfonate and sulfurous acid pulp waste liquid with a mass concentration of 50% Add 2Kg of agent into a strong mixer and continue t...

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Abstract

The invention provides a preparation method of high-temperature abrasion proof ceramic wafer, using the fused brown alumina, fused sub-white corundum, silicon carbide, fused mullite with a grain size of 1-3mm as the main material; using the dense brown alumina, fused sub-white corundum, silicon carbide, silicon nitride, boron carbide with grain sizes of 180 mesh, 0.088-1mm, 325 mesh and active a-Al2O3 powder with a grain size <=2Mum and nano micro silica powder with a grain size <=200nm as the adjuvant, using soft clay, spodumene, bentonite, metallic silicon with grain sizes of 180 mesh or 325 mesh as the agglutinant; using the pure calcium aluminate cement or sulphite pulp waste-liquor as the temporary binding agent; using the sodium hexametaphosphate, zirconia as the additive; stirring the above materials in a high-power stirrer for 10-15 minute; adding the clean water or the sulphite pulp waste-liquor into the mixture and continuously stirring the mixture for 5-10 minute; casting molding or pressure molding the mixture; drying the molded mixture at 250-300 DEG C and incubating the dried mixture for 4-8 hour; sintering the mixture at above 1350-1650 DEG C in a high-temperature furnace and incubating the sintered mixture for 4-10 hour.

Description

technical field [0001] The invention relates to a method for preparing a composite material, in particular to a method for preparing a high-temperature wear-resistant ceramic plate used in non-standard pipelines, transportation links and some heavy equipment in heavy industries such as cement building materials or power generation. Background technique [0002] In many industries such as cement building materials, thermal power generation, metallurgy and mining, petrochemical industry, etc., there are a large number of pipelines in the working condition of continuous operation around the clock. , scour and wear and corrosion. It directly leads to the rapid wear and tear of the steel body in such parts, increased downtime, increased maintenance costs, and reduced equipment operation rate; at the same time, it also leads to decreased efficiency of the entire process line, increased power consumption, increased production costs, and environmental pollution. [0003] With the d...

Claims

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Application Information

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IPC IPC(8): C04B35/622C04B35/10C04B35/565C04B35/185C04B35/584C04B35/563
Inventor 牟元全庹林涛
Owner 重庆罗曼科技有限公司
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