Titanium-silicon-carbon metal composite converter slag-stopping sliding plate brick and preparation method thereof

A metal composite and converter slag blocking technology, applied in the field of refractory materials, can solve the problems of rough surface wear, poor thermal shock stability, oxidation and spalling of the sliding plate working area, etc., and achieve low wettability, good self-lubricating property, high chemical The effect of stability

Pending Publication Date: 2021-06-01
MAANSHAN LIER KAIYUAN NEW MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Furthermore, the present invention also provides a method for preparing titanium-silicon-carbon metal composite converter slag-stopping bricks. Through the above-mentioned optimized raw material formula composition, the existing converter slag-stopping bricks have a relatively low service life and thermal shock often occurs during use. Problems such as poor stability, oxidized peeling in the slide plate working area, roughness and wear on the plate surface, and the production process of the converter slag retaining slide plate is simple and low energy consumption, which is in line with the national development plan of advocating green, new, low energy consumption and new refractory materials

Method used

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  • Titanium-silicon-carbon metal composite converter slag-stopping sliding plate brick and preparation method thereof
  • Titanium-silicon-carbon metal composite converter slag-stopping sliding plate brick and preparation method thereof
  • Titanium-silicon-carbon metal composite converter slag-stopping sliding plate brick and preparation method thereof

Examples

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Effect test

Embodiment 1

[0064] A titanium-silicon-carbon metal composite converter slag-retaining sliding brick in this embodiment includes granular materials, composite powders and additives, wherein the granular materials are refractory materials with various particle sizes, including fused zirconia corundum, fused Zirconium mullite, sintered tabular alumina and fused magnesia aluminum spinel particles; the particle size of fused zirconia corundum is 3-1mm, w(Al 2 o 3 +ZrO 2 )≥98%, w(ZrO 2 )≥40%; the particle size of sintered tabular alumina is 2~1mm, w(Al 2 o 3 )≥99%, the bulk density of the granular platy corundum is 3.5g cm -3 ; The particle size of fused zircon mullite includes two types: 1-0.5mm and 0.5-0mm, w(Al 2 o 3 )40~50%, w(ZrO 2 )≥33%, the bulk density of fused zirconia mullite is 3.2g cm -3 ; The particle size of fused magnesia aluminum spinel particles is 1-0mm;

[0065]The composite powder includes fused magnesia aluminum spinel powder, metal silicon powder, metal aluminum p...

Embodiment 2

[0078] The raw materials and preparation method of this example are basically the same as those of Example 1, the difference being that the mass parts of the raw materials are different, see Table 1 for details.

[0079] The appearance of the converter slag blocking sliding brick of this embodiment after using 17 furnaces is as follows: image 3 As shown, the erosion and reaming of sliding bricks is small, and the sliding surface is glossy and smooth without obvious oxidation.

Embodiment 3

[0081] The raw materials and preparation method of this example are basically the same as those of Example 1, the difference being that the mass parts of the raw materials are different, see Table 1 for details. The service life of the converter slag retaining slide brick in this embodiment can reach 21 furnaces.

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Abstract

The invention discloses a titanium-silicon-carbon metal composite converter slag-stopping sliding plate brick and a preparation method thereof. The titanium-silicon-carbon metal composite converter slag-stopping sliding plate brick comprises fused zirconia corundum, fused zirconia mullite, sintered tabular corundum and fused magnesia-alumina spinel particles, fused magnesia-alumina spinel powder, metal silicon powder, metal aluminum powder, alpha calcined alumina powder, boron carbide, titanium silicon carbon and carbon black, organic silicon resin and thermosetting phenolic resin. The preparation method comprises the following steps: uniformly mixing the raw materials, molding, drying, sintering, hooping, grinding, coating and carrying out finish machining to obtain a finished product. The titanium-silicon-carbon metal composite converter slag-stopping sliding plate brick disclosed by the invention has strong corrosion resistance and oxidation resistance, and is not easy to react with molten steel and steel slag to generate a low melt; and meanwhile, relatively high wear resistance and relatively low wettability can ensure relatively long service life and relatively high use stability of the product, and particularly the titanium-silicon-carbon metal composite converter slag-stopping sliding plate brick has obvious advantages in complex steelmaking processes such as smelting of high-grade steel.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a titanium silicon carbon metal composite converter slag retaining slide brick and a preparation method thereof. Background technique [0002] With the development of my country's manufacturing industry, the demand for steel products such as high-end high-grade bearings, springs, high-speed rail wheels, axles, gears, and automobile plates is increasing. At the same time, it also brings stricter requirements for smelting technology and steelmaking process control. The key to the quality impact and the slag blocking process of the converter, the effect of its slag blocking becomes particularly important. Excessive slag content in the converter not only affects the deoxidation and alloying process of molten steel, but also brings a large number of non-metallic inclusions, which adversely affects the quality of subsequent molten steel. At present, domestic la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/101C04B35/185C04B35/622C21C5/46
CPCC04B35/66C04B35/101C04B35/185C04B35/622C21C5/4653C04B35/04C04B2235/3222C04B2235/428C04B2235/402C04B2235/3821C04B2235/38C04B2235/424C04B2235/3843C04B2235/404
Inventor 徐昆波原慧张远红余西平赵锋
Owner MAANSHAN LIER KAIYUAN NEW MATERIAL
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