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Technological process for preparation of converter sliding plate inlaid zirconium product

A technological process and slide plate technology, which is applied in the process field of preparation of zirconium products embedded in converter slide plates, can solve problems such as weak erosion resistance, short service life, and insufficient wear resistance, and achieve improved erosion resistance, service life, and The effect of enhancing stability

Active Publication Date: 2013-07-10
TAICANG HONGDA JUNMENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The zirconium products currently used all use fused stabilized zirconia as the main raw material, adding a small amount of fused monoclinic zirconia or desiliconized zirconia, and then press molding. This method has poor product stability and short service life.
The structure of the existing zirconium products is single. Although titanium dioxide, calcium oxide, etc. are added to increase a certain stability, the mechanical strength is poor, the wear resistance is not enough, and the erosion resistance is weak. In addition, because there is no The step of removing impurities makes the product with high impurity content and affects the quality of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A process flow for preparing a zirconium oxide converter slide plate inlaid with a zirconium plate, the steps of the process flow are:

[0024] 1) Mixed grinding of raw materials: 85% zirconium dioxide, 12% basic magnesium carbonate and 3% iridium oxide were mixed and ground for 14 hours to obtain fine powder; the ball-to-material ratio of fine powder was 2:1, and the fineness 95% pass 400 mesh;

[0025] 2) Raw material blanking: add 2.5% chemical paste to the above fine powder, the chemical paste is prepared from carboxymethyl cellulose and water, wherein the mass ratio of carboxymethyl cellulose to water is 1: 10, and stir with a mixer, and press it into a raw material green body in a mold;

[0026] 3) Firing: Put the raw body into the kiln furnace, fire at 1350°C, keep the temperature for 9 hours, and the total firing time is 45 hours to obtain the sintered body;

[0027] 4) Particle preparation: sequentially process the sintered green body with a jaw crusher, a do...

Embodiment 2

[0042] A process flow for preparing zirconium rings embedded in zirconia converter slides, the process steps are:

[0043] 1) Mixed grinding of raw materials: 88% zirconium dioxide, 10% basic magnesium carbonate and 2% iridium oxide were mixed and ground for 16 hours to obtain a fine powder. Fineness 95% through 400 mesh;

[0044] 2) Raw material billet: add 3% chemical paste to the above fine powder, the chemical paste is prepared from carboxymethyl cellulose and water, wherein the mass ratio of carboxymethyl cellulose to water is 1 :10, and stir with a mixer, and press it into a raw material green body in a mold;

[0045] 3) Firing: Put the raw body into the kiln, fire at 1400°C, keep it warm for 10 hours, and the total firing time is 50 hours to obtain the sintered body;

[0046] 4) Particle preparation: sequentially process the sintered body with a jaw crusher, a double roller machine, and a screening machine to obtain particles of different particle sizes, and collect p...

Embodiment 3

[0061] A process flow for preparing a zirconium oxide converter slide plate inlaid with a zirconium plate, the steps of the process flow are:

[0062] 1) Mixed grinding of raw materials: 86% zirconium dioxide, 11% basic magnesium carbonate and 3% iridium oxide were mixed and ground for 14 hours to obtain fine powder. 95% pass 400 mesh;

[0063] 2) Raw material blanking: add 2.8% chemical paste to the above fine powder, the chemical paste is prepared from carboxymethyl cellulose and water, wherein the mass ratio of carboxymethyl cellulose to water is 1 :10, and stir with a mixer, and press it into a raw material green body in a mold;

[0064] 3) Firing: Put the raw body into the kiln, fire at 1360°C, keep it warm for 9.5 hours, and the total firing time is 48 hours to obtain the sintered body;

[0065] 4) Particle preparation: sequentially process the sintered green body with a jaw crusher, a double roller machine, and a screening machine to obtain particles of different part...

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Abstract

The invention discloses a technological process for preparation of converter sliding plate inlaid zirconium product. The technological process comprises the following steps of: mixing and milling raw materials; blanking by using the raw materials; sintering; deironing; preparing powder; mixing; pelleting; mechanical pressing and drying; cellaring; high-temperature sintering; taking out from cellar; inspection; packaging, and obtaining the finished product. Basic magnesium carbonate and iridium oxide added in the technological process provided by the invention can enhance the stability of zirconia, and consequentially, the normal temperature compression strength, the thermal shock stability and the scouring resistance of the product are improved remarkably. The accessory added during the mixing process guarantees the formation density and the blank strength, the product shrinkage is controlled to be 3-10%, the product shrinking percentage can be regulated by regulation on the dosage of the powder and the magnesium-zirconium powder, moreover, unnecessary impurities are eliminated in the technology, cracking of zirconium product is reduced effectively, and the quality of product is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of production and processing of zirconium products, and in particular relates to a process flow for preparing zirconium products inlaid with sliding plates in a converter. Background technique [0002] Currently used zirconium products use fused stabilized zirconia as the main raw material, adding a small amount of fused monoclinic zirconia or desiliconized zirconia, and then press molding. This method has poor stability and short service life. The structure of the existing zirconium products is single. Although titanium dioxide, calcium oxide, etc. are added to increase a certain stability, the mechanical strength is poor, the wear resistance is not enough, and the erosion resistance is weak. In addition, because there is no The step of removing impurities makes the product with high impurity content, which affects the quality of the product. Contents of the invention [0003] Purpose of the invention: T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/48C04B35/622
Inventor 严建忠
Owner TAICANG HONGDA JUNMENG NEW MATERIAL
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