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Metal-based aluminum-magnesium spinel sliding plate and preparation method thereof

An aluminum-magnesium spinel and metal-based technology, applied in the field of refractory materials for steelmaking, can solve the problems of environmental protection and energy saving requirements, adverse effects of the surrounding environment, etc., and achieve strong anti-stripping ability, small thermal expansion coefficient, and anti-slag Strong effect of erosion ability

Pending Publication Date: 2019-01-08
LUOYANG KECHUANG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the skateboards on the market are all combined with phenolic resin, and some varieties need to be fired under carbon buried conditions, which will have adverse effects on the surrounding environment during production and use, which is contrary to the current environmental protection and energy saving requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1, according to the weight percentage of all dry materials, take 5% of 325-mesh fine powder of sintered tabular corundum, 3% of 200-mesh fine powder of fused magnesia, 10% of 325-mesh fine powder of fused aluminum-magnesium spinel, and calcined а-Al 2 o 3 Micropowder 6%, and 180 mesh metal aluminum powder 6%, fully mixed evenly to obtain premixed powder;

[0034] Step 2, according to the weight percentage of all dry materials, take 20% of 3-1mm particles of sintered tabular corundum, 30% of 1-0.5mm particles, 10% of 0.5-0mm particles, and 1-0mm particles of fused aluminum-magnesium spinel 10%, mix thoroughly for 3 minutes, then add all the aluminum sol binder with a dry weight of 4% to the mixed granules and mix for 10 minutes, then add the premixed powder prepared in step 1 to the mixture and mix for 20 minutes;

[0035] Step 3, trapping the mixture obtained in Step 2 for 4 hours at normal temperature to obtain moldable mud;

[0036] Step 4, use a 1000-ton elec...

Embodiment 2

[0043] Step 1, according to the weight percentage of all dry materials, take 5% of fused white corundum 200-mesh fine powder, 2% of high-purity magnesia 200-mesh fine powder, 10% of fused aluminum-magnesium spinel 325-mesh fine powder, and calcined а- al 2 o 3 5% of fine powder, and 8% of 180-mesh metal aluminum-magnesium alloy powder, fully mixed evenly to obtain premixed powder;

[0044] Step 2, according to the weight percentage of all dry materials, take 20% of fused white corundum 3-1mm particles, 30% of 1-0.5mm particles, 10% of 0.5-0mm particles, and 1-0mm particles of fused aluminum magnesium spinel 10%, fully mixed for 2 to 5 minutes, after that, add all 4% aluminum-magnesium sol binders of dry weight to the mixed granules and mix for 5 to 10 minutes, then add the premixed powder prepared in step 1 to the mixture Mix and grind for 20-30 minutes;

[0045] Step 3, the mixture obtained in step 2 is trapped under normal temperature conditions for 6 hours;

[0046] Ste...

Embodiment 3

[0053] Step 1, according to the weight percentage of all dry materials, take 5% of 325 mesh fine powder of sintered tabular corundum, 12% of 325 mesh fine powder of fused aluminum magnesium spinel, calcined а-Al 2 o 3 Micropowder 3%, and 180 mesh metal aluminum powder 5%, metal aluminum-magnesium alloy powder 5%, fully mix evenly, obtain premixed powder;

[0054] Step 2, according to the weight percentage of all dry materials, take 20% of fused white corundum 3-1mm particles, 30% of 1-0.5mm particles, 10% of 0.5-0mm particles, and 1-0mm particles of fused aluminum magnesium spinel 10%, mix thoroughly for 3 minutes, then add all aluminum-magnesium sol binders with a dry weight of 4% to the mixed granules and mix for 10 minutes, then add the premixed powder prepared in step 1 to the mixture and mix for 20 minutes;

[0055] In step 3, the mixture obtained in step 2 is stored at room temperature for 8 hours to obtain moldable mud;

[0056] Step 4, use a 1000-ton electric screw p...

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Abstract

The invention discloses a metal-based aluminum-magnesium spinel sliding plate and a preparation method thereof. The metal-based aluminum-magnesium spinel sliding plate consists of a dry material and an additional binding agent; and the dry material comprises: high-purity corundum particles and fine powder, aluminum-magnesium spinel particles and fine powder, magnesia fine powder, alpha-Al2O3 finepowder and a metal powder additive. The specific preparation method comprises the following steps: firstly, taking the high-purity corundum fine powder, the magnesia fine powder, aluminum-magnesium spinel fine powder, the alpha-Al2O3 fine powder and the metal powder in the dry material to sufficiently mix so as to obtain pre-mixed powder; then taking the high-purity corundum particles and the aluminum-magnesium spinel particles to sufficiently mix, adding the binding agent into the mixed particles to remix, and then adding the pre-mixed powder into the mixture to carry out mixed milling; and carrying out ageing, forming, thermal treatment and impregnation on the obtained mixture, and then carrying out processes of drying, strapping, grinding and surface coating on the obtained semi-finished product so as to obtain the finished product. The invention provides the iron and steel smelting sliding plate which is safe and reliable and has high-temperature resistance, erosion resistance anda long service life; and the metal-based aluminum-magnesium spinel sliding plate is simple in preparation process, does not require a high temperature, and is low in production energy consumption andgood in operation environment.

Description

technical field [0001] The invention belongs to the technical field of refractory materials for steelmaking, and in particular relates to a metal-based aluminum-magnesium spinel sliding plate and a preparation method thereof. Background technique [0002] With the development of science and technology, iron and steel smelting has undergone major changes compared with the traditional smelting methods, and the refractory materials used are also constantly being updated. Especially the implementation of the latest energy-saving and environmental protection policies, the requirements for the iron and steel smelting environment are getting higher and higher. , all of which require refractory materials with better performance and more environmental friendliness. The sliding plate is a functional refractory component. As a switch for controlling the flow of molten steel in the process of continuous steel pouring in the steelmaking plant, its performance is very critical. If the sli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/101
CPCC04B35/101C04B2235/77C04B2235/9676C04B2235/9607C04B2235/96C04B2235/9615C04B2235/402C04B2235/40C04B2235/606C04B2235/602C04B2235/5436C04B2235/5427C04B2235/3218C04B2235/3222C04B2235/3206
Inventor 谢毕强马军强蔚文绪
Owner LUOYANG KECHUANG NEW MATERIAL CO LTD
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