High-strength erosion-resistant ladle self-flow castable and preparation method thereof

An anti-erosion, high-strength technology, applied in the field of refractory materials, can solve problems such as resistance to erosion and erosion, poor fluidity, and segregation, and achieve the effects of avoiding segregation, reducing costs, and high strength

Active Publication Date: 2021-03-16
北京利尔高温材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a high-strength anti-erosion ladle self-flowing castable and its preparation method. The self-flowing castable has high strength, good erosion resistance and slag erosion resistance, and can solve the problem of corundum-based self-flowing castables. There are problems such as poor fluidity, segregation, resistance to erosion and erosion during the use of materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The high-strength erosion-resistant ladle self-flowing castable described in this embodiment is calculated according to the mass fraction, and its preparation raw materials include the following components:

[0031]20 parts of chrome corundum aggregate with a particle size of 3-5mm, 25 parts of washed corundum aggregate with a particle size of 1-3mm, 20 parts of washed corundum aggregate with a particle size of 0-1mm, and 7.5 parts of white corundum fine powder, 7.5 parts of white corundum fine powder with a particle size of 0.044-0.074mm, 5 parts of 98 fused magnesia fine powder with a particle size of 0.074-0.083mm, low-sodium α with a particle size of 1.5-2µm 7 parts of alumina micropowder, 3 parts of low-sodium α-alumina micropowder with a particle size of 3-5µm, 3.5 parts of pure calcium aluminate cement, 1 part of zirconium composite silicon micropowder, 0.6 part of retarded superplasticizer superfine alumina ( The manufacturer is Laikete (Chongqing) Chemical Prod...

Embodiment 2

[0038] The high-strength erosion-resistant ladle self-flowing castable described in this embodiment is calculated according to the mass fraction, and its preparation raw materials include the following components:

[0039] 23 parts of chrome corundum aggregate with a particle size of 3-5mm, 20 parts of washed corundum aggregate with a particle size of 1-3mm, 22 parts of washed corundum aggregate with a particle size of 0-1mm, and 9 parts of white corundum fine powder, 5 parts of white corundum fine powder with a particle size of 0.044-0.074mm, 6 parts of 98 fused magnesia fine powder with a particle size of 0.074-0.083mm, low-sodium α 6 parts of alumina micropowder, 4 parts of low-sodium α-alumina micropowder with a particle size of 3-5µm, 4 parts of pure calcium aluminate cement, 0.8 part of zirconium composite silicon micropowder, 0.5 part of retarded superplasticizer superfine alumina ( The manufacturer is Laikete (Chongqing) Chemical Products Co., Ltd., model: KF51S), high...

Embodiment 3

[0046] The high-strength erosion-resistant ladle self-flowing castable described in this embodiment is calculated according to the mass fraction, and its preparation raw materials include the following components:

[0047] 17 parts of chrome corundum aggregate with a particle size of 3-5mm, 30 parts of washed corundum aggregate with a particle size of 1-3mm, 18 parts of washed corundum aggregate with a particle size of 0-1mm, and 11 parts of white corundum fine powder, 4 parts of white corundum fine powder with a particle size of 0.044-0.074mm, 7 parts of 98 fused magnesia fine powder with a particle size of 0.074-0.083mm, low-sodium α 8 parts of alumina micropowder, 2 parts of low-sodium α-alumina micropowder with a particle size of 3-5µm, 3.7 parts of pure calcium aluminate cement, 0.6 part of zirconium composite silicon micropowder, 0.7 part of retarded superplasticizer superfine alumina ( The manufacturer is Laikete (Chongqing) Chemical Products Co., Ltd., model: KF51S), h...

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Abstract

The invention provides a high-strength erosion-resistant ladle self-flow castable and a preparation method thereof. And steel ladle self-flowing castable is calculated according to parts by mass. Thepreparation raw materials comprise the following components in parts by weight: 5-40 parts of chromium corundum aggregate, 20-70 parts of washed corundum aggregate, 5-40 parts of white corundum fine powder, 1-15 parts of fused magnesite fine powder, 1-25 parts of low-sodium alpha alumina micro powder, 110 parts of pure calcium aluminate cement, 0.1-5 part of zirconium composite silicon micro powder, 0.1-5 part of a delayed coagulation type water reducing agent and 0.01-0.5 part of organic fibers. The self-flow castable has high strength, good erosion resistance and slag erosion resistance, andcan solve the problems of poor fluidity, segregation, no erosion resistance, no erosion resistance and the like of corundum self-flow castables in the use process.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a high-strength anti-scouring erosion ladle self-flowing castable and a preparation method thereof. Background technique [0002] Ladle self-flowing castables are mainly used to solve defects such as difficult bonding between ladle nozzle seat bricks, breathable brick seat bricks and ladle bottom refractories, easy penetration of steel, and steel clamping. It is based on low-cement and ultra-low-cement castables , developed through micro-powder technology and reasonable particle size distribution, is a castable refractory material that can flow and degas without vibration. At present, corundum-based self-flowing castables are widely used in domestic brick ladles, which are used for filling joints around the ladle nozzle seat bricks, breathable brick seat bricks, and filling the irregular gaps between the cladding wall and the cladding bottom brick. Due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/106C04B35/105C04B35/622B22D41/02
CPCB22D41/02C04B35/105C04B35/106C04B35/62204C04B2235/3206C04B2235/3208C04B2235/3222C04B2235/3418C04B2235/5212C04B2235/5427C04B2235/5436C04B2235/77C04B2235/96C04B2235/9669
Inventor 王团收刘琳琳刘丽颜浩任林贾祥超刘靖轩崔志强李健张盛
Owner 北京利尔高温材料股份有限公司
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