CN108467279A - Lightweight insulated pouring material and preparation method thereof for tundish cover - Google Patents

Lightweight insulated pouring material and preparation method thereof for tundish cover Download PDF

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Publication number
CN108467279A
CN108467279A CN201810552406.9A CN201810552406A CN108467279A CN 108467279 A CN108467279 A CN 108467279A CN 201810552406 A CN201810552406 A CN 201810552406A CN 108467279 A CN108467279 A CN 108467279A
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parts
insulated pouring
pouring material
lightweight
calcium aluminate
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刘黎
徐国涛
张洪雷
杨运超
陶晓林
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Wuhan Iron and Steel Co Ltd
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Wuhan Iron and Steel Co Ltd
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Abstract

The lightweight insulated pouring material and preparation method thereof that the invention discloses a kind of for tundish cover, it includes 25~65 parts of alumina aggregate, 5~25 parts of calcined bauxite in powder, 10~30 parts of titanium calcium aluminate hollow ball, 3~10 parts of silicon powder, 5~10 parts of aquamaine mountain flour, 5~10 parts of aluminous cement, 0.05~0.1 part of sodium tripolyphosphate, 0.05~0.1 part of poly carboxylic acid series water reducer, 5~10 parts of pore creating material and 3~10 parts of high dispersive water-soluble fibre that its raw material is counted by ratio of weight and the number of copies.Lightweight insulated pouring material of the present invention can not only extend backpack cover service life, molten steel temperature drop can also be reduced, packet baking efficiency in raising, achieve the effect that heat preservation energy-saving, and use waste residue processing product-titanium calcium aluminate hollow ball that smelting ferro-titanium generates and used as raw material so that Industrial Solid Waste is comprehensively utilized and recycling treatment.Cost of material is low, cost-effective.Exemplary role can be in industry played, preferable economic benefit and social benefit are brought.

Description

Lightweight insulated pouring material and preparation method thereof for tundish cover
Technical field
The present invention relates to refractory materials, and in particular to a kind of lightweight insulated pouring material and its system for tundish cover Preparation Method.
Background technology
Tundish is the intermediate receptacle between ladle and crystallizer, the progress of continuous casting technology so that tundish in addition to Outside storage, distribution molten steel, a variety of refining functions such as separation field trash, alloying are more realized.Tundish cover is tundish Important component.As steel enterprise is to energy-saving pay attention to day by day, the effect of tundish cover is more prominent.It is in tundish When off-line baking or online casting can insulation, protection Jiao Gang mechanisms improve the operating environment of worker, while playing safety Protective action.
Tundish cover works at high temperature for a long time, and frequent handling, mainly by frequent temperature change, high temperature Molten steel heat radiation, the influence of thermal stress deformation etc..According to tundish cover with the residual sample of rear castable refractory analysis and backpack cover Onsite application condition, comprehensive descision causes the Wear cause of backpack cover castable refractory to be:High temperature fluctuation makes in castable It is influenced caused by the deformation of thermal stress and backpack cover steel construction that portion generates.Therefore backpack cover service life is improved:One needs to improve The heat-resistant knocking stability of castable reduces influence of the temperature fluctuation to itself.Two need to improve the heat-proof quality of castable, subtract Influence of the small temperature fluctuation to backpack cover steel construction, to reduce deformation.
Middle packet backpack cover is not in direct contact with high-temperature molten steel, and the castable refractory used at present, density is larger, causes backpack cover mistake Weight is one of the factor for causing steel construction to deform, and common castable heat preservation and insulation is poor, increases the energy of baking The temperature drop of consumption and molten steel, while steel construction can not be protected from the influence of temperature fluctuation.
Therefore, it is necessary to develop it is a kind of not only having can guarantee backpack cover service life but also can heat preservation energy-saving castable refractory.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of lightweight guarantors for tundish cover Warm castable and preparation method thereof, the lightweight insulated pouring material, density are small, and light-weight, thermal coefficient is small, thermal and insulating performance It is good, and have the characteristics that good heat-resistant knocking stability energy, reach and improves backpack cover service life, energy-saving and environment-friendly purpose.
To achieve the above object, a kind of lightweight insulated pouring material for tundish cover designed by the present invention, it is described The raw material of lightweight insulated pouring material count by ratio of weight and the number of copies include 25~65 parts of alumina aggregate, 5~25 parts of calcined bauxite in powder, 10~30 parts of titanium calcium aluminate hollow ball, 3~10 parts of silicon powder, 5~10 parts of aquamaine mountain flour, 5~10 parts of calcium aluminate water Mud, 0.05~0.1 part of sodium tripolyphosphate, 0.05~0.1 part of poly carboxylic acid series water reducer, 5~10 parts of pore creating material and 3~ 10 parts of high dispersive water-soluble fibre.
Further, it includes 30~55 parts of alumina that the raw material of the lightweight insulated pouring material is counted by ratio of weight and the number of copies Aggregate, 5~15 parts of calcined bauxite in powder, 15~30 parts of titanium calcium aluminate hollow ball, 4~6 parts of silicon powder, 7~10 parts of kyanite Powder, 7~10 parts of aluminous cement, 0.05~0.1 part of sodium tripolyphosphate, 0.05~0.1 part of poly carboxylic acid series water reducer, 5 ~7 parts of pore creating material and 3~5 parts of high dispersive water-soluble fibre.
Still further, in the alumina aggregate and calcined bauxite in powder, Al2O3Mass percentage content >=70%, Fe2O3Quality Degree < 2.0%.
Still further, the alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm With 0 < grain sizes≤gradings of 1mm tri-, weight percent is respectively:40~65%, 20~30% and 15~30%;The alum The granularity of native powder is less than 0.074mm.
Still further, in the titanium calcium aluminate hollow ball, Al2O3Mass percentage content >=65%, Fe2O3Quality hundred Divide than content < 1.0%;The titanium calcium aluminate hollow ball of stating is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤ Bis- gradings of 1mm;Its weight percent is respectively:40~60% and 40~60%.
Still further, the granularity of the silicon powder is less than 0.074mm;The granularity of the aquamaine mountain flour is less than 0.074mm.
Still further, it is floating bead, plastics and starch that the composite pore-forming agent, which is selected from,.
Still further, the pore creating material is to be mixed by starch and floating bead/plastics, wherein starch and floating bead/plastics Weight ratio be 1: 1~2.
Still further, it includes 40 parts of alumina bone that the raw material of the lightweight insulated pouring material is counted by ratio of weight and the number of copies Material, 10 parts of calcined bauxite in powder, 20 parts of titanium calcium aluminate hollow ball, 5 parts of silicon powder, 8 parts of aquamaine mountain flour, 7 parts of calcium aluminate water Mud, 0.1 part of sodium tripolyphosphate, 0.05 part of poly carboxylic acid series water reducer, 6 parts of pore creating material and 5 parts of high dispersive are water-soluble fine Dimension;Wherein,
The alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain sizes≤ Tri- gradings of 1mm, weight percent are respectively:50%, 25% and 25%;
The titanium calcium aluminate hollow ball of stating is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤1mm bis- Grading;Its weight percent is respectively:50% and 50%;
The pore creating material is mixed by floating bead and starch, wherein floating bead and the weight ratio of starch are 1:1.
In actual use, by the composition of raw materials of lightization insulated pouring material through compounding, mixing, additional raw material gross mass 5~8% water is poured into a mould after stirring evenly and vibrates, finished product is formed after conserving, demoulding.
Beneficial effects of the present invention:
1) lightweight insulated pouring material composition of raw materials of the present invention makes the bulk density of castable reduce, and reduces backpack cover certainly Body weight;Thermal coefficient reduces, and improves the heat preservation and insulation of castable;Heat-resistant knocking stability energy is improved, it is made to be applicable in In the working environment of temperature rapid heat cycle fluctuation.The product performance index reaches bulk density < 2.5g/cm3, thermal coefficient < 1.5W/mK (350 DEG C average), 1100 DEG C of water cooling >=30 time of thermal shock resistance energy, with light weight, heat preservation energy-saving, anti-thermal shock is steady It is qualitative can it is good the advantages that, molten steel temperature drop can be reduced, in raising packet baking efficiency, improve backpack cover service life, it is used at the same time Low in raw material price, it is cost-effective.It uses ferro-titanium and smelts the industrial residue titanium calcium aluminate generated as raw material so that work Industry solid waste obtains recycling treatment.
2) lightweight insulated pouring material of the present invention can not only extend backpack cover service life, moreover it is possible to reduce molten steel temperature drop, carry Senior middle school's packet baking efficiency, achievees the effect that heat preservation energy-saving, and uses and smelt the waste residue processing product-that ferro-titanium generates Titanium calcium aluminate hollow ball is used as raw material so that Industrial Solid Waste is comprehensively utilized and recycling treatment.Cost of material is low, property Valence is than high.Exemplary role can be in industry played, preferable economic benefit and social benefit are brought.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail, so as to those skilled in the art understand that.
The raw material used in following embodiments is purchased from market, wherein
In alumina aggregate and calcined bauxite in powder, Al2O3Mass percentage content >=70%, Fe2O3Mass percentage content < 2.0%.
The granularity of calcined bauxite in powder is less than 0.074mm.In titanium calcium aluminate hollow ball, Al2O3Mass percentage content >=65%, Fe2O3Mass percentage content < 1.0%;The granularity of the silicon powder is less than 0.074mm;The granularity of the aquamaine mountain flour is less than 0.074mm。
Embodiment 1
By the raw material of the lightweight insulated pouring material 1 of tundish cover by ratio of weight and the number of copies based on include 40 parts of alumina bone Material, 10 parts of calcined bauxite in powder, 20 parts of titanium calcium aluminate hollow ball, 5 parts of silicon powder, 8 parts of aquamaine mountain flour, 7 parts of calcium aluminate water Mud, 0.1 part of sodium tripolyphosphate, 0.05 part of poly carboxylic acid series water reducer, 6 parts of floating bead and 4 parts of high dispersive water-soluble fibre; Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:50%, 25% and 25%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:50% and 50%.
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly 3~5 minutes and is vibrated, the shape after conserving, demoulding At finished product.
Embodiment 2
By the raw material of the lightweight insulated pouring material 2 of tundish cover by ratio of weight and the number of copies based on include 35 parts of alumina bone Material, 10 parts of calcined bauxite in powder, 25 parts of titanium calcium aluminate hollow ball, 5 parts of silicon powder, 8 parts of aquamaine mountain flour, 7 parts of calcium aluminate water Mud, 0.1 part of sodium tripolyphosphate, 0.05 part of poly carboxylic acid series water reducer, 6 parts of plastics and 4 parts of high dispersive water-soluble fibre; Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:57%, 23% and 20%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:48% and 52%.
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly 3~5 minutes and is vibrated, the shape after conserving, demoulding At finished product.
Embodiment 3
By the raw material of the lightweight insulated pouring material 3 of tundish cover by ratio of weight and the number of copies based on include 42 parts of alumina bone Material, 10 parts of calcined bauxite in powder, 18 parts of titanium calcium aluminate hollow ball, 5 parts of silicon powder, 8 parts of aquamaine mountain flour, 7 parts of calcium aluminate water Mud, 0.1 part of sodium tripolyphosphate, 0.05 part of poly carboxylic acid series water reducer, 6 parts of starch and 4 parts of high dispersive water-soluble fibre; Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:48%, 24% and 28%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:55% and 45%.
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly and vibrates, finished product is formed after conserving, demoulding.
Embodiment 4
By the raw material of the lightweight insulated pouring material 4 of tundish cover by ratio of weight and the number of copies based on include 40 parts of alumina bone Material, 10 parts of calcined bauxite in powder, 20 parts of titanium calcium aluminate hollow ball, 5 parts of silicon powder, 8 parts of aquamaine mountain flour, 7 parts of calcium aluminate water Mud, 0.1 part of sodium tripolyphosphate, 0.05 part of poly carboxylic acid series water reducer, 6 parts of pore creating material and 5 parts of high dispersive are water-soluble fine Dimension;Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:50%, 25% and 25%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:50% and 50%.
Pore creating material is mixed by floating bead and starch, wherein floating bead and the weight ratio of starch are 1: 1.
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly and vibrates, finished product is formed after conserving, demoulding.
Embodiment 5
By the raw material of the lightweight insulated pouring material 5 of tundish cover by ratio of weight and the number of copies based on include 32 parts of alumina bone Material, 10 parts of calcined bauxite in powder, 28 parts of titanium calcium aluminate hollow ball, 5 parts of silicon powder, 8 parts of aquamaine mountain flour, 7 parts of calcium aluminate water Mud, 0.1 part of sodium tripolyphosphate, 0.05 part of poly carboxylic acid series water reducer, 6 parts of pore creating material and 4 parts of high dispersive are water-soluble fine Dimension;Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:62.5%, 22% and 15.5%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:46% and 54%;
Pore creating material is mixed by plastics and starch, and wherein the weight ratio of plastics and starch is 1: 1.
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly and vibrates, finished product is formed after conserving, demoulding.
Embodiment 6
By the raw material of the lightweight insulated pouring material 6 of tundish cover by ratio of weight and the number of copies based on include 65 parts of alumina bone Material, 5 parts of calcined bauxite in powder, 10 parts of titanium calcium aluminate hollow ball, 10 parts of silicon powder, 5 parts of aquamaine mountain flour, 10 parts of calcium aluminate Cement, 0.05 part of sodium tripolyphosphate, 0.05 part of poly carboxylic acid series water reducer, 5 parts of pore creating material and 3 parts of high dispersive are water-soluble Fiber;Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:65%, 20% and 15%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:40% and 60%;
Pore creating material is mixed by plastics and starch, and wherein the weight ratio of floating bead and starch is 1: 1.
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly and vibrates, finished product is formed after conserving, demoulding.
Embodiment 7
By the raw material of the lightweight insulated pouring material 7 of tundish cover by ratio of weight and the number of copies based on include 25 parts of alumina bone Material, 25 parts of calcined bauxite in powder, 30 parts of titanium calcium aluminate hollow ball, 3 parts of silicon powder, 5 parts of aquamaine mountain flour, 5 parts of calcium aluminate water Mud, 0.05 part of sodium tripolyphosphate, 0.05 part of poly carboxylic acid series water reducer, 10 parts of starch and 3 parts of high dispersive are water-soluble fine Dimension;Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:40%, 30% and 30%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:60% and 40%;
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly and vibrates, finished product is formed after conserving, demoulding.
Embodiment 8
By the raw material of the lightweight insulated pouring material 8 of tundish cover by ratio of weight and the number of copies based on include 55 parts of alumina bone Material, 15 parts of calcined bauxite in powder, 30 parts of titanium calcium aluminate hollow ball, 5 parts of silicon powder, 7 parts of aquamaine mountain flour, 10 parts of calcium aluminate Cement, 0.1 part of sodium tripolyphosphate, 0.1 part of poly carboxylic acid series water reducer, 7 parts of plastics and 5 parts of high dispersive are water-soluble fine Dimension;Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:50%, 20% and 30%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:50% and 50%;
Pore creating material is mixed by plastics and starch, and wherein the weight ratio of floating bead and starch is 1: 1.
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly and vibrates, finished product is formed after conserving, demoulding.
Embodiment 9
By the raw material of the lightweight insulated pouring material 9 of tundish cover by ratio of weight and the number of copies based on include 30 parts of alumina bone Material, 5 parts of calcined bauxite in powder, 30 parts of titanium calcium aluminate hollow ball, 6 parts of silicon powder, 10 parts of aquamaine mountain flour, 7 parts of calcium aluminate water Mud, 0.08 part of sodium tripolyphosphate, 0.08 part of poly carboxylic acid series water reducer, 5 parts of pore creating material and 3 parts of high dispersive are water-soluble fine Dimension;Wherein,
Alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:50%, 30% and 20%;
Titanium calcium aluminate hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its Weight percent is respectively:50% and 50%;
Pore creating material is mixed by plastics and starch, and wherein the weight ratio of plastics and starch is 1: 1.
In actual use, by the composition of raw materials of lightization insulated pouring material through dispensing, be put into mixing 5 in blender~ 10 minutes, the water of additional raw material gross mass 5~8% was poured into a mould after stirring evenly and vibrates, finished product is formed after conserving, demoulding.
Other unspecified parts are the prior art.Although above-described embodiment is made that the present invention and retouches in detail State, but it is only a part of the embodiment of the present invention, rather than whole embodiments, people can also according to the present embodiment without Other embodiment is obtained under the premise of creativeness, these embodiments belong to the scope of the present invention.

Claims (9)

1. a kind of lightweight insulated pouring material for tundish cover, it is characterised in that:The lightweight insulated pouring material It includes 25~65 parts of alumina aggregate, 5~25 parts of calcined bauxite in powder, 10~30 parts of titanium calcium aluminate sky that raw material is counted by ratio of weight and the number of copies Bulbus cordis, 3~10 parts of silicon powder, 5~10 parts of aquamaine mountain flour, 5~10 parts of aluminous cement, 0.05~0.1 part of trimerization Sodium phosphate, 0.05~0.1 part of poly carboxylic acid series water reducer, 5~10 parts of pore creating material and 3~10 parts of high dispersive are water-soluble fine Dimension.
2. being used for the lightweight insulated pouring material of tundish cover according to claim 1, it is characterised in that:The lightweight The raw material of insulated pouring material count by ratio of weight and the number of copies include 30~55 parts of alumina aggregate, 5~15 parts of calcined bauxite in powder, 15~30 parts Titanium calcium aluminate hollow ball, 4~6 parts of silicon powder, 7~10 parts of aquamaine mountain flour, 7~10 parts of aluminous cement, 0.05~ 0.1 part of sodium tripolyphosphate, 0.05~0.1 part of poly carboxylic acid series water reducer, 5~7 parts of pore creating material and 3~5 parts of high dispersive Water-soluble fibre.
3. according to claim 1 or the lightweight insulated pouring material for tundish cover, it is characterised in that:The alumina In aggregate and calcined bauxite in powder, Al2O3Mass percentage content >=70%, Fe2O3Mass percentage content < 2.0%.
4. being used for the lightweight insulated pouring material of tundish cover according to claim 1, it is characterised in that:The alumina bone Material is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤gradings of 1mm tri-, weight hundred Point ratio is respectively:40~65%, 20~30% and 15~30%;The granularity of the calcined bauxite in powder is less than 0.074mm.
5. the lightweight insulated pouring material according to claim 1 or claim 2 for tundish cover, it is characterised in that:The titanium In calcium aluminate hollow ball, Al2O3Mass percentage content >=65%, Fe2O3Mass percentage content < 1.0%;It is described to state titanium aluminium Sour calcium hollow ball is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-;Its weight percent score It is not:40~60% and 40~60%.
6. being used for the lightweight insulated pouring material of tundish cover according to claim 1, it is characterised in that:The silicon powder Granularity be less than 0.074mm;The granularity of the aquamaine mountain flour is less than 0.074mm.
7. being used for the lightweight insulated pouring material of tundish cover according to claim 1, it is characterised in that:It is described compound to make It is floating bead, plastics and starch that hole agent, which is selected from,.
8. being used for the lightweight insulated pouring material of tundish cover according to claim 7, it is characterised in that:The pore creating material To be mixed by starch and floating bead/plastics, wherein the weight ratio of starch and floating bead/plastics is 1: 1~2.
9. being used for the lightweight insulated pouring material of tundish cover according to claim 1, it is characterised in that:The lightweight It includes 40 parts of alumina aggregate, 10 parts of calcined bauxite in powder, 20 parts of titanium calcium aluminate that the raw material of insulated pouring material is counted by ratio of weight and the number of copies Hollow ball, 5 parts of silicon powder, 8 parts of aquamaine mountain flour, 7 parts of aluminous cement, 0.1 part of sodium tripolyphosphate, 0.05 part poly- Carboxylic acid water reducing agent, 6 parts of pore creating material and 5 parts of high dispersive water-soluble fibre;Wherein,
The alumina aggregate is divided by granule size:3mm < grain sizes≤5mm, 1mm < grain size≤3mm and 0 < grain size≤1mm tri- A grading, weight percent are respectively:50%, 25% and 25%;
The titanium calcium aluminate hollow ball of stating is divided by granule size:1mm < grain sizes≤3mm and 0 < grain sizes≤gradings of 1mm bis-; Its weight percent is respectively:50% and 50%;
The pore creating material is mixed by floating bead and starch, wherein floating bead and the weight ratio of starch are 1: 1.
CN201810552406.9A 2018-05-31 2018-05-31 Lightweight insulated pouring material and preparation method thereof for tundish cover Pending CN108467279A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113087537A (en) * 2021-03-16 2021-07-09 武汉钢铁有限公司 Steel ladle permanent layer castable containing porous balls

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103613394A (en) * 2013-11-26 2014-03-05 武汉钢铁(集团)公司 Casting material with thermal insulation function
WO2016138886A1 (en) * 2015-03-02 2016-09-09 Ask Chemicals Gmbh Method for curing a polyurethane binders in moulding material mixtures by introducing tertiary amines, and solvents and kit for implementation of the method
CN107266052A (en) * 2017-07-10 2017-10-20 武汉科技大学 Alumina titanium calcium aluminate carborundum multiple phase refractory material and preparation method thereof
CN107573098A (en) * 2017-09-01 2018-01-12 武汉钢铁有限公司 A kind of lightweight castable for sintering ignition furnace
CN107963898A (en) * 2017-12-05 2018-04-27 武汉科技大学 Mullite bonded titanium calcium aluminate hollow ball fireclay insulating refractory and preparation method thereof
CN107973619A (en) * 2017-11-16 2018-05-01 淄博市鲁中耐火材料有限公司 Mullite-anorthite-corundum complex phase micropore heat-barrier material and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103613394A (en) * 2013-11-26 2014-03-05 武汉钢铁(集团)公司 Casting material with thermal insulation function
WO2016138886A1 (en) * 2015-03-02 2016-09-09 Ask Chemicals Gmbh Method for curing a polyurethane binders in moulding material mixtures by introducing tertiary amines, and solvents and kit for implementation of the method
CN107266052A (en) * 2017-07-10 2017-10-20 武汉科技大学 Alumina titanium calcium aluminate carborundum multiple phase refractory material and preparation method thereof
CN107573098A (en) * 2017-09-01 2018-01-12 武汉钢铁有限公司 A kind of lightweight castable for sintering ignition furnace
CN107973619A (en) * 2017-11-16 2018-05-01 淄博市鲁中耐火材料有限公司 Mullite-anorthite-corundum complex phase micropore heat-barrier material and preparation method thereof
CN107963898A (en) * 2017-12-05 2018-04-27 武汉科技大学 Mullite bonded titanium calcium aluminate hollow ball fireclay insulating refractory and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
蓝振华等: "钛铝酸钙在铁水预处理脱硫喷枪浇注料中的应用", 《2017年全国耐火原料学术交流会论文集》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113087537A (en) * 2021-03-16 2021-07-09 武汉钢铁有限公司 Steel ladle permanent layer castable containing porous balls
CN113087537B (en) * 2021-03-16 2022-02-18 武汉钢铁有限公司 Steel ladle permanent layer castable containing porous balls

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Application publication date: 20180831