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Preparation method of tundish eco-friendly dry vibration material

A dry vibrating material and tundish technology, applied in the field of iron and steel metallurgy, can solve the problems of environmental pollution, irritation, carbon increase, etc., and achieve the effects of good corrosion resistance, extended service life and long service life.

Inactive Publication Date: 2014-05-07
无锡市华瑞渔机厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the carbon and hydrogen after carbonization of the binder phenolic resin of this kind of dry material will obviously add carbon and hydrogen to the molten steel, and the pungent smell will be volatilized from the material during baking, which will also pollute the environment. Therefore, it is developed and produced The high-performance environment-friendly tundish dry vibrating material is of great significance to improve the overall level of steel production technology in the domestic refractory industry and even in the metallurgical industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for preparing a tundish environment-friendly dry vibration material, the environment-friendly dry vibration material consists of the following components in parts by weight: 15 parts of 5-7mm fused magnesia particles, 22 parts of 2-5mm fused magnesia particles , 7 parts of 0.5-1mm fused magnesia particles, 6 parts of -200 mesh lightly burned magnesium powder, -200 mesh α-Al 2 o 3 1 part of powder, 3 parts of -200 mesh silicon oxide powder, 2 parts of -200 mesh calcium oxide powder, 1.5 parts of sodium tripolyphosphate, 0.5 part of sodium hexametaphosphate, 0.3 part of dextrin, 1.5 parts of polyvinyl alcohol, 4 parts of bentonite ; The preparation method is:

[0015] 1) Put 5-7mm fused magnesia particles, 2-5mm fused magnesia particles, and 0.5-1mm fused magnesia particles into a mixer and mix for 4 minutes; then add polyvinyl alcohol and bentonite, and mix for 11 minutes;

[0016] 2) Add lightly burned magnesium powder, α-Al 2 o 3 Powder, silicon oxide powd...

Embodiment 2

[0019] A method for preparing a tundish environment-friendly dry vibration material, the environment-friendly dry vibration material consists of the following components in parts by weight: 17 parts of 5-7mm fused magnesia particles, 20 parts of 2-5mm fused magnesia particles , 9 parts of 0.5-1mm fused magnesia particles, 4 parts of -200 mesh lightly burned magnesium powder, -200 mesh α-Al 2 o 3 3 parts of powder, 1 part of -200 mesh silicon oxide powder, 4 parts of -200 mesh calcium oxide powder, 0.5 parts of sodium tripolyphosphate, 1.5 parts of sodium hexametaphosphate, 0.1 part of dextrin, 2.5 parts of polyvinyl alcohol, 2 parts of bentonite ; The preparation method is:

[0020] 1) Put 5-7mm fused magnesia particles, 2-5mm fused magnesia particles, and 0.5-1mm fused magnesia particles into a mixer and mix for 6 minutes; then add polyvinyl alcohol and bentonite, and mix for another 9 minutes;

[0021] 2) Add lightly burned magnesium powder, α-Al 2 o 3 Powder, silicon ox...

Embodiment 3

[0024] A method for preparing a tundish environment-friendly dry vibration material, the environment-friendly dry vibration material consists of the following components in parts by weight: 16 parts of 5-7mm fused magnesia particles, 21 parts of 2-5mm fused magnesia particles , 8 parts of 0.5-1mm fused magnesia particles, 5 parts of -200 mesh lightly burned magnesium powder, -200 mesh α-Al 2 o 3 2 parts of powder, 2 parts of -200 mesh silicon oxide powder, 3 parts of -200 mesh calcium oxide powder, 1 part of sodium tripolyphosphate, 1 part of sodium hexametaphosphate, 0.2 parts of dextrin, 2 parts of polyvinyl alcohol, 3 parts of bentonite ; The preparation method is:

[0025] 1) Put 5-7mm fused magnesia particles, 2-5mm fused magnesia particles, and 0.5-1mm fused magnesia particles into a mixer and mix for 5 minutes; then add polyvinyl alcohol and bentonite, and mix for another 10 minutes;

[0026] 2) Add lightly burned magnesium powder, α-Al 2 o 3 powder, silicon oxide p...

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Abstract

The invention discloses a preparation method of a tundish eco-friendly dry vibration material. The preparation method comprises the following steps of 1, putting 15-17 parts of fused magnesia particles having the sizes of 5-7mm, 20-22 parts of fused magnesia particles having the sizes of 2-5mm and 7-9 parts of fused magnesia particles having the sizes of 0.5-1mm into a mixer, carrying out mixing for 4-6min, adding 1.5-2.5 parts of polyvinyl alcohol and 2-4 parts of bentonite into the mixture, and carrying out mixing for 9-11min, 2, adding 4-6 parts of caustic-burned magnesia powder of -200 meshes, 1-3 parts of alpha-Al2O3 powder of -200 meshes, 1-3 parts of silicon oxide powder of -200 meshes and 2-4 parts of calcium oxide powder of -200 meshes into the mixture, carrying out mixing for 9-11 min, adding 0.5-1.5 parts of sodium tripolyphosphate, 0.5-1.5 parts of sodium hexametaphosphate and 0.1-0.3 parts of dextrin into the mixture and carrying out mixing for 14-16min, and 3, carrying out blank film vibration molding on the mixture obtained by the step 2, carrying out baking at a temperature of 260-280 DEG C and carrying out demolding.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to a preparation method of an environment-friendly dry vibrating material for a tundish. Background technique [0002] Continuous casting tundish, as an important key equipment of high-efficiency continuous casting technology commonly used in the steel industry at home and abroad, plays an important role in stabilizing continuous casting production and improving the quality of continuous casting slabs. Therefore, the development and development of new refractory materials and products related to continuous casting tundish has always been a focus of the metallurgical refractory industry. [0003] The working lining of the tundish plays the role of high temperature resistance, slag erosion resistance, heat insulation and heat preservation in the continuous casting production process. With the increasing demand for clean steel and alloy steel, the tundish also becomes...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 刘德仁
Owner 无锡市华瑞渔机厂
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