Environment-friendly pouring box drying type vibrating material wedding agent

A vibrating material and environment-friendly technology, applied in the field of refractory materials, can solve the problem that the working life of the working lining is difficult to meet the requirements, and achieve the effect of good corrosion resistance and improved service life

Inactive Publication Date: 2008-10-29
HENAN GENGSHENG REFRACTORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the working life of the working lining made of thi

Method used

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  • Environment-friendly pouring box drying type vibrating material wedding agent
  • Environment-friendly pouring box drying type vibrating material wedding agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 An environment-friendly tundish dry-type vibrating material binder, which contains 10-80% sodium tripolyphosphate, 15-85% magnesium sulfate, and 0.01-5% solid water glass in weight percent.

[0018] Take a certain amount of prepared tundish dry material, add the above-mentioned binder (the amount added is 3-8% of the total weight of the dry material), stir evenly with a forced mixer, and then put it into use, the same below.

Embodiment 2

[0019] Example 2 An environment-friendly tundish dry-type vibrating material binder, which contains 50% sodium pyrophosphate, 45% magnesium sulfate, and 5% sodium silicate in weight percent.

Embodiment 3

[0020] Example 3 An environment-friendly tundish dry-type vibrating material binder, which contains 80% sodium hexametaphosphate, 18% magnesium chloride, and 2% water glass in weight percent.

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Abstract

The invention relates to environment friendly binder for dry vibratory material for a tundish. The binder contains sodium-containing phosphate or borate glass 10-80 wt%, magnesium salt 15-85 wt%, and silicate or borate of alkali metal 0.01-5 wt%. The binder has the advantages that inorganic salts is used as the composite binder of carbon-free dry vibratory material and no carbon is introduced into molten steel to prevent carbon and hydrogen in molten steel from increasing, so requirement for smelting low-carbon steel can be satisfied; during a baking process, no pungent odor from formaldehyde, cresol, etc. is generated, and the binder is environment friendly; the bind has good erosion resistance, and is easily decomposed, and both the bonding strength and the moderate-temperature strength can satisfy requirements for demolding and application; and the service life of the tundish is prolonged, and the average service life of the dry material prepared from fused magnesite and sintered magnesite is 29 hours or longer.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to an environment-friendly tundish dry vibration material binder. Background technique [0002] The quality of refractory materials for tundish plays an important role in eliminating inclusions in molten steel, maintaining the stability of steel flow and improving the quality of continuous casting steel. Requirements for the refractory materials used in the working lining of the tundish are: corrosion resistance, erosion resistance, good heat preservation, no pollution to molten steel, easy construction and unpacking, etc. With the increasing demand for clean steel and alloy steel, the tundish has also become the final key link in the secondary refining of molten steel in the steelmaking process. The working lining of the tundish has changed from silicon insulation boards to magnesia and magnesia-calcium amorphous refractory materials, and the construction method has changed fro...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 徐德亭张光普胡波周安宏石凯陈瑞金蒲李刚
Owner HENAN GENGSHENG REFRACTORIES
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