Paint for continuous casting pouring box work liner and preparing technique thereof

A continuous casting tundish and working lining technology, which is applied in the direction of manufacturing tools, casting equipment, metal processing equipment, etc., can solve the problems of tundish coating performance to be improved, coating profit margin narrowing, tundish coating collapse, etc., to achieve The preparation method is simple and easy, the application performance is improved, and the service life is long

Active Publication Date: 2009-08-19
WUGANG REFRACTORY CO LTD
View PDF0 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the rising price of raw materials and changes in the steel development situation, the profit margin of coatings is gradually shrinking, which seriously affects the benefits of enterprises. It is urgent to develop new low-cost tundish coatings.
[0004] 2. The performance of tundish coating needs to be improved
[0005] 3. The coating of the tundish has a phenomenon of collapse, and the performance of automatic turning is poor
The practice of various production plants shows that most of the existing tundish coatings have collapsed packages, and the low-melting substances in the coatings increase after adding admixtures, resulting in corrosion resistance
At the same time, due to the bonding of the permanent layer, the performance of its automatic turning over is poor
[0006] In order to solve the above problems, the current tundish coatings generally use a composition of 20-50% forsterite raw meal and clinker. Although this reduces the cost to a certain extent, the above-mentioned collapse phenomenon and poor automatic turning performance Defects are still not fundamentally resolved

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

[0020] Raw materials: 50 kg of forsterite raw meal, 50 kg of magnesia, 1.5 kg of sodium tripolyphosphate, 0.5 kg of silicate, 0.5 kg of clay, 0.05 kg of organic fiber, 1.2 kg of paper fiber, and 1 kg of lime. The weight percentage of MgO in the above-mentioned forsterite raw meal is 45%, the particle size of forsterite raw meal is ≤5mm, and the particle size is composed of four gradations of 5-3mm, 3-1mm, 1-0.088mm, <0.088mm, accounting for forsterite The weight percentages of raw rock are 30%, 35%, 35%, and 0%, respectively. The weight percentage of MgO in the magnesia is 85%, the particle size of the magnesia is ≤1mm, the particle size is 1-0.088mm, and <0.088mm respectively, accounting for 35% and 65% by weight of the magnesia. The particle size of lime and clay are both 180 mesh.

[0021] Preparation process: first weigh the above raw materials according to the formula, then add the forsterite raw material as aggregate into the forced mixer, then add magnesia fine powder ...

Embodiment 2

[0023] Raw materials: 70 kg of forsterite raw material, 30 kg of magnesia, 1.5 kg of sodium tripolyphosphate, 0.1 kg of organic fiber, 1.5 kg of paper fiber, and 1 kg of lime. The weight percentage of MgO in the above-mentioned forsterite raw meal is 44%, the particle size of forsterite raw meal is ≤5mm, and the particle size is composed of four gradations of 5-3mm, 3-1mm, 1-0.088mm, <0.088mm, accounting for forsterite Stone weight percent is respectively 25%, 30%, 30%, 15%. The weight percentage of MgO in the above magnesia is 88%, the particle size of the magnesia is ≤1mm, the particle size is respectively 1-0.088mm, <0.088mm two gradations, accounting for 30% and 70% of the weight percentage of the magnesia respectively. The lime particle size is 180 mesh.

[0024] Preparation process: first weigh the above raw materials according to the formula, then add the forsterite raw material as aggregate into the forced mixer, then add magnesia fine powder and composite additives, ...

Embodiment 3

[0026] Raw materials: 90 kg of forsterite raw material, 10 kg of magnesia, 1.5 kg of sodium hexametaphosphate, 0.5 kg of silicate, 0.05 kg of organic fiber, 1.5 kg of paper fiber, and 1 kg of lime. The weight percentage of MgO in the above-mentioned forsterite raw meal is 42%, the particle size of forsterite raw meal is ≤5mm, and the particle size is composed of four gradations of 5-3mm, 3-1mm, 1-0.088mm, <0.088mm, accounting for forsterite The weight percentages of raw rock are 20%, 25%, 25%, and 30%, respectively. The weight percentage of MgO in the magnesia is 91%, the particle size of the magnesia is ≤1mm, the particle size is 1-0.088mm and <0.088mm respectively, and the weight percentages of the magnesia are 0% and 100% respectively. The lime particle size is 180 mesh.

[0027] Preparation process: first weigh the above raw materials according to the formula, then add the forsterite raw material as aggregate into the forced mixer, then add magnesia fine powder and compos...

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a painting for continuously cast pouring basket working lining and a producing technique thereof. The components of the painting is as follows according to parts by weight: 50-90 parts of forsterite raw material, 10-50 parts of magnesia, and 3-5 parts of composite additive, wherein the composite additive is at least one of organic fiber, paper fiber, lime, trimeric sodium phosphate, sodium hexametahposphate, clay or silicate. The producing technique of the painting is evenly mixing and stirring the forsterite raw material, the magnesia and the composite additive according to the parts by weight to lead the mixture to show no evident white trace, thereby obtaining the painting used for the continuously cast pouring basket working lining. The painting has excellent smearing, sintering, anti-scouring, anti-dreg erosion and anti-peeling properties, is free from collapsing and pollution, is environment-friendly, and has long service life, low production cost and simple and convenient preparation method.

Description

technical field [0001] The invention relates to an unshaped refractory material and its production process, in particular to a coating for continuous casting tundish lining in the steelmaking process and its production process. Background technique [0002] As the market has higher and higher requirements for steel quality, the steelmaking process has been continuously refined, and the refractory materials used for the working lining of the continuous casting tundish are constantly being updated, from no working lining to heat insulation boards, from heat insulation boards to existing intermediate Pack paint and keep improving. However, many new problems have also been raised, which are mainly reflected in the following aspects: [0003] 1. The price of raw materials for tundish coatings has risen, and the cost of products has increased. Initially, the tundish coating used mid-grade magnesia as the aggregate, adding clay, dextrin and other admixtures, which could meet the ...

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): C04B35/66B22D41/02
Inventor 郑吉红姚亚双田先明洪学勤高永生郭敬娜李建辉陈克强
Owner WUGANG REFRACTORY CO LTD
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