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Al-Mg-Si type tank edge casting material and preparation method and application thereof

An aluminum-magnesium-silicon and castable technology, which is applied in the field of steel-making ladle refractories, can solve problems such as cracks and poor thermal stability, and achieve the effects of stable thermodynamic performance and high strength

Inactive Publication Date: 2016-02-03
GANGCHENG GRP LIANGSHAN RUIHAI IND
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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 an aluminum-magnesium-silicon type tank edge castable and its preparation method for the ladle tank edge. Problems such as cracking and poor thermal stability during high temperature use

Method used

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  • Al-Mg-Si type tank edge casting material and preparation method and application thereof
  • Al-Mg-Si type tank edge casting material and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0036] Put 45 parts by weight of 0.088mm-3mm waste skateboard particles and 25 parts by weight of 3-8mm waste skateboard particles that have passed the inspection into the drum mixer for mixing. After mixing for 2 minutes, add 8 parts by weight of alumina Powder, 9 parts by weight of sintered magnesium powder, 5 parts by weight of Changlu brand A600 cement, 3 parts by weight of silica dust powder, and 5 parts by weight of α-alumina micropowder are sent into a drum mixer for mixing and stirring. After stirring for 4 minutes, put the mixed material into a dry ton bag through a three-way valve discharge device, pack it at 500Kg / bag, fasten the opening mark and put it in storage for later use, and take samples to test the aluminum-magnesium-silicon type tank along the pouring The physical and chemical indicators of the materials (see Table 3 for the test results), and after passing the test, they are transported to the repairing work area of ​​Xichang Steel Vanadium Steelmaking Pla...

Embodiment 2

[0040] Send 50 parts by weight of 0.088mm-3mm waste skateboard particles and 20 parts by weight of 3-8mm waste skateboard particles that have passed the inspection into a drum mixer for mixing. After mixing for 2 minutes, add 5 parts by weight of alumina Powder, 12 parts by weight of sintered magnesium powder, 3 parts by weight of Changlu brand A600 cement, 5 parts by weight of silica dust powder, and 5 parts by weight of α-alumina micropowder are sent into a drum mixer for mixing and stirring. After stirring for 4 minutes, put the mixed material into a dry ton bag through the discharge device connected with the three-way valve, pack it at 500Kg / bag, tie the opening mark and put it into the warehouse for standby, and take samples to test the aluminum-magnesium-silicon type tank Along the physical and chemical indicators of castables (see Table 4 for test results), after passing the test, they are transported to the repairing work area of ​​Xichang Steel Vanadium Steelmaking Pla...

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Abstract

The invention belongs to the technical field of a steelmaking ladle refractory material, and in particular to an Al-Mg-Si type tank edge casting material and a preparation method and application thereof. The Al-Mg-Si type tank edge casting material is provided for a ladle tank edge and is prepared from the following raw materials in percent by weight; 20-25% of waste sliding plate particles with the grain size being 3-8mm, 45-50% of waste sliding plate particles with the grain size being 0.088-3mm, 5-8% of calcined bauxite in powder, 9-12% of sintering magnesium powder, 3-7% of cement, 3-5% of micro silicon powder, 5-7% of alpha-Al2O3 micropowder, 0.2-0.3% of sodium hexametaphosphate and 0.015-0.02% of anti-explosion fiber. The steel ladle tank edge filled with the Al-Mg-Si type tank edge casting material is tighter, high in intensity and stable in thermal performance, and the problems of poor application property, cracking, low intensity, poor thermal stability, difficulty in the processing of tank edge-adhered slags of the ladle tank edge can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of steel-making ladle refractory materials, and in particular relates to a steel-making ladle aluminum-magnesium-silicon type tank edge castable, a preparation method and application thereof. Background technique [0002] During the turnover and use of the ladle, the edge of the ladle tank generally does not contact molten steel and steel slag, but sometimes when the amount of steel tapping fluctuates, the molten steel contacts the edge of the tank when the amount of steel tapping is large. Therefore, the refractory material in this part is required to have good medium and high temperature strength. In order to balance the life of the ladle lining, reduce the consumption of ladle lining materials and improve the safety and reliability of the ladle, aluminum-magnesium-silicon castables are specially selected to solve the above problems. In the experiment It is found that αAl 2 o 3 When the addition amount o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/101C04B35/622
Inventor 黄国炳毛朋陈超陈桂卫胡志豪
Owner GANGCHENG GRP LIANGSHAN RUIHAI IND
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