CN109503134A - A kind of pouring materialfor steel ladle and preparation method thereof - Google Patents
A kind of pouring materialfor steel ladle and preparation method thereof Download PDFInfo
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- CN109503134A CN109503134A CN201811645440.7A CN201811645440A CN109503134A CN 109503134 A CN109503134 A CN 109503134A CN 201811645440 A CN201811645440 A CN 201811645440A CN 109503134 A CN109503134 A CN 109503134A
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/52—Constituents or additives characterised by their shapes
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- C04B2235/5212—Organic
Abstract
The present invention relates to fire resisting material fields, and in particular to a kind of pouring materialfor steel ladle and preparation method thereof.A kind of pouring materialfor steel ladle, it is made of plurality of raw materials, in parts by weight, plurality of raw materials includes: 20-60 parts of 90 homogenization material, 25-55 parts of white fused alumina, 3-5 parts of magnesite clinker, magnesium aluminate spinel 4-6 parts of sintering, 6-10 parts of Activated Mg-Al Spinel Catalyst micro mist and 2-4 parts of silicon powder.With outstanding high-temperature behavior, scour resistance and erosion-resisting characteristics while the pouring materialfor steel ladle is low in cost, and service life with higher.The preparation method of the pouring materialfor steel ladle can prepare pouring materialfor steel ladle low in cost and outstanding high-temperature behavior by the preparation method.
Description
Technical field
The present invention relates to fire resisting material fields, and in particular to a kind of pouring materialfor steel ladle and preparation method thereof.
Background technique
Castable is also known as castable refractory, and mobility with higher has wide range of applications in metallurgical production process,
It can not only be used for liner body use, and can be made into prefabricated section and carry out using can be used for the ladle of LF furnace, due in LF furnace smelting process
Temperature is higher, therefore the performance of the high-temperature behavior of castable, scour resistance, erosion-resisting characteristics and service life etc. is non-
Often important, the careless slightly ladle that will result in wears packet, generates serious consequence.
To keep the performance of castable up to standard, a large amount of white fused alumina, plate diamond spar are used in the prepared composition of traditional castable
And the high-quality corundum material such as dense alumina, although its high-temperature behavior, scour resistance, erosion-resisting characteristics and service life are equal
It is more outstanding, but with the growth of metallurgical production scale, the usage amount of castable gradually increases, the cost of high-quality corundum compared with
Height does not meet the policy of cost efficiency, and therefore, urgent need researches and develops a kind of castable, while using inexpensive raw material, high temperature
Performance, scour resistance, erosion-resisting characteristics and service life still can satisfy production requirement.
Given this special to propose the application.
Summary of the invention
The purpose of the present invention is to provide a kind of pouring materialfor steel ladles, with outstanding high temperatures while low in cost
Energy, scour resistance and erosion-resisting characteristics, and there is longer service life.
Another object of the present invention is to provide a kind of preparation methods of above-mentioned pouring materialfor steel ladle, pass through the preparation method energy
Enough prepare pouring materialfor steel ladle low in cost and outstanding high-temperature behavior.
The present invention solves its technical problem and adopts the following technical solutions to realize:
The present invention proposes a kind of pouring materialfor steel ladle, is made of plurality of raw materials, and in parts by weight, plurality of raw materials includes: 90
20-60 parts of homogenization material, 25-55 parts of white fused alumina, 3-5 parts of magnesite clinker, sintering magnesium aluminate spinel 4-6 parts, Activated Mg-Al Spinel Catalyst
6-10 parts of micro mist and 2-4 parts of silicon powder.
The present invention proposes a kind of preparation method of pouring materialfor steel ladle, comprising the following steps:
Magnesite clinker, sintering magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist and silicon powder premix uniform must be premixed
Powder；
90 homogenization materials, white fused alumina and premix powders are packed into blender and adds water and stirs uniformly and is demoulded after conserving；
It is toasted after demoulding.
The beneficial effect of the pouring materialfor steel ladle of the embodiment of the present invention and preparation method thereof is:
The pouring materialfor steel ladle of the embodiment of the present invention is brilliant, living by 90 homogenization materials, white fused alumina, magnesite clinker, sintering magnalium point
Property magnesium aluminate spinel micro mist and silicon powder between mutual synergistic function so that select 90 homogenization materials carry out effectively drop this
Under the premise of, it also can guarantee that pouring materialfor steel ladle has outstanding high-temperature behavior, scour resistance and erosion-resisting characteristics, and have
Longer service life further enhances the performance of pouring materialfor steel ladle by limiting the ratio of above-mentioned raw materials.
The preparation method of the embodiment of the present invention, when by limiting the roasting mode in preparation process, baking temperature and baking
Between, further enhance the high-temperature behavior of pouring materialfor steel ladle.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Pouring materialfor steel ladle of the embodiment of the present invention and preparation method thereof is specifically described below.
A kind of pouring materialfor steel ladle provided in an embodiment of the present invention, is made of plurality of raw materials, in parts by weight, plurality of raw materials
It include: 20-60 parts of 90 homogenization material, 25-55 parts of white fused alumina, 3-5 parts of magnesite clinker, magnesium aluminate spinel 4-6 parts of sintering, active magnalium
6-10 parts of Spinel micropowder and 2-4 parts of silicon powder.
In parts by weight, plurality of raw materials include: 22-58 parts of 90 homogenization material, 27-53 parts of white fused alumina, 3-5 parts of magnesite clinker,
Magnesium aluminate spinel 4.5-6 parts of sintering, 7-9 parts of Activated Mg-Al Spinel Catalyst micro mist and 2-4 parts of silicon powder.Or plurality of raw materials packet
It includes: 90 26-55 parts of homogenization materials, 29-50 parts of white fused alumina, 3.5-5 parts of magnesite clinker, magnesium aluminate spinel 4.5-5.5 parts of sintering, activity
7.5-9 parts of magnesium aluminate spinel micro mist and 2.5-4 parts of silicon powder.
It can guarantee that each raw material gives full play to its effect by the interaction of above-mentioned raw materials compatibility, meanwhile, each group
/ synergistic effect or synergistic effect can be generated, strengthen the correlation between the effect of each component, and weaken
The side effect of specific components then makes the pouring materialfor steel ladle being prepared by above-mentioned raw materials have high-temperature behavior, scour resistance
Energy and erosion-resisting characteristics.For example, sintering magnesium aluminate spinel can generate synergistic effect with white fused alumina, further promotes ladle and pour
The erosion-resisting characteristics of material feeding.Meanwhile it can guarantee that the pouring materialfor steel ladle being prepared has better high temperature using aforementioned proportion
Performance, and each raw material is enabled preferably to play its effect, if more rescaling, may cause synergistic effect reduces or disappears
It loses, then influences the overall performance of pouring materialfor steel ladle.
Specifically, by mass percentage, the ingredient of 90 homogenization materials of the present embodiment includes: aluminium oxide >=90%, oxidation
The resultant 0-0.4% of iron 0-1.8%, potassium oxide and sodium oxide molybdena.The aluminium oxide of mass fraction >=90% can effectively enhance ladle
The high-temperature behavior and corrosion resistance of castable.On the other hand, 90 homogenization materials compare the high-quality corundum raw material such as white fused alumina with lower
Cost, therefore can play the role of drop this.
Specifically, by mass percentage, the ingredient of the white fused alumina of the present embodiment includes: aluminium oxide >=99%, iron oxide
0-0.1%, sodium oxide molybdena 0-0.4% and silica 0-0.2%.White fused alumina is capable of providing outstanding high-temperature behavior and corrosion resistance
Energy.
Specifically, by mass percentage, the ingredient of the magnesite clinker of the present embodiment includes: magnesia >=95%, oxidation
Calcium 0-1.8% and silica 0-2.0%.Magnesite clinker can provide good high temperature resistance and excellent for pouring materialfor steel ladle
Elegant erosion-resisting characteristics, enables pouring materialfor steel ladle to be effective against washing away for high-temperature molten steel.
Specifically, by mass percentage, in the ingredient of the sintering magnesium aluminate spinel of the present embodiment: aluminium oxide >=73%,
Magnesia >=25% can be significantly with good corrosion resistance, abrasion resistance and good thermal shock resistance
Improve the corrosion resistance of pouring materialfor steel ladle.
Specifically, by mass percentage, in the ingredient of the Activated Mg-Al Spinel Catalyst micro mist of the present embodiment: aluminium oxide >=
90%, magnesia >=8% is equally capable of providing good corrosion resistance, abrasion resistance and thermal shock resistance, with
Above-mentioned sintering magnesium aluminate spinel and magnesite clinker three are synergistic, further promote the high-temperature behavior of pouring materialfor steel ladle.
Further, in parts by weight, raw material further includes 0.2-1 parts of additive.The additive is for improving steel ladle pouring
Expect the mobility in preparation process.
Further, additive is that one or both of sodium tripolyphosphate, calgon and REFPAC100 combine.
Wherein, tripolyphosphate sodium water solution is in alkalescent, has the effect of forming suspension in the water of the range of pH value 7-14, because
This its can make with good peptizaiton to promote the mobility in pouring materialfor steel ladle preparation process on the other hand
The amount of water in preparation process is reduced for water-reducing agent；Calgon has good hygroscopicity, can gradually absorb moisture and
Viscose shape is presented, therefore it can be used as water-reducing agent and plays the role of reducing amount of water, another aspect also has good
Dispersibility can generate soluble complexes with metal ions such as calcium, magnesium, also be able to ascend pouring materialfor steel ladle preparation process
In mobility；REFPAC100 is novel additive, can also play the mobility improved in preparation process, reduction adds
The effect of water.
Further, in parts by weight, raw material further includes 0.1-0.2 parts of explosion-proof fiber.Explosion-proof fiber is to be with polypropylene
The fire proofing material that raw material are prepared toasts it with above-mentioned raw materials, after mixing as baking temperature constantly rises
High and when reaching certain temperature, which just starts softening, shrinks, fusing, eventually forms stomata and is carbonized, they at
Distribution forms small network stomata in pouring materialfor steel ladle body after type, and then opens aqueous vapor channel, mitigates internal stress, prevents quick-fried
It splits, to improve the service life of pouring materialfor steel ladle entirety.
The present invention also provides a kind of preparation methods of pouring materialfor steel ladle: the following steps are included:
S1, premix；
Magnesite clinker, sintering magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist and silicon powder premix uniform must be premixed
Powder.
Specifically, by above-mentioned raw materials according to 3-5 parts of magnesite clinker, sintering magnesium aluminate spinel 4-6 parts, Activated Mg-Al Spinel Catalyst
6-10 parts of micro mist and 2-4 parts of silicon powder of ratio are uniformly mixed to obtain premix powders.The step is to premix each powder raw material
Uniformly, preventing mixing unevenness causes the performance of pouring materialfor steel ladle obtained unstable.
Preferably, raw material is micro- according to 3-5 parts of magnesite clinker, magnesium aluminate spinel 4.5-6 parts of sintering, Activated Mg-Al Spinel Catalyst
7-9 parts of powder and 2-4 parts of silicon powder of ratio are uniformly mixed to obtain premix powders.
It is highly preferred that by raw material according to 3.5-5 parts of magnesite clinker, magnesium aluminate spinel 4.5-5.5 parts of sintering, active magnalium point
7.5-9 parts of spar micro mist and 2.5-4 parts of silicon powder of ratio are uniformly mixed to obtain premix powders.
Further, do time in advance is 20-30 minutes.The uniformity of premix powders can be guaranteed by adequately doing time in advance,
Then guarantee the stability of the performance of pouring materialfor steel ladle, on the other hand, overlong time will lead to increased costs, 20-30 minutes
Duration can reduce cost under the premise of guaranteeing uniform.
S2, casting-maintenance-demoulding；
90 homogenization materials, white fused alumina and premix powders are packed into after being added water and stirred uniformly in blender, after being poured and conserving
Demoulding.
Specifically, 90 homogenization materials, white fused alumina and premix powders are packed into blender and are added water and stirred uniformly, add water quality
For the 4-6% of the gross mass of above-mentioned pouring materialfor steel ladle, in-mold molding, then natural curing 1-3 days are then poured into, are then carried out
Demoulding.
S3, baking；
It is toasted after demoulding.By can be prepared by above-mentioned pouring materialfor steel ladle after baking procedure.
Further, baking procedure includes low-temperature bake, medium temperature baking and high-temperature baking, and low-temperature bake temperature is 10-
200 DEG C, the time is 40-48 hours；Medium temperature baking temperature is 201-700 DEG C, and the time is 36-48 hours；High-temperature baking temperature is
701-1000 DEG C, the time is 36-48 hours.
Specifically, first the pouring materialfor steel ladle blank after demoulding is placed under roaster, 40- is carried out with 10-200 DEG C of temperature
48 hours low-temperature bakes then raise the temperature to 201-700 DEG C, medium temperature baking in 36-48 hours are carried out, finally by temperature
It is increased to 701-1000 DEG C, carries out 36-48 hours high-temperature bakings.Pouring materialfor steel ladle blank after demoulding passes through above-mentioned complete
It after baking procedure, can effectively increase performance, make it have more excellent high-temperature behavior, scour resistance and corrosion resistance
Can, and can be improved its service life.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of pouring materialfor steel ladle provided in an embodiment of the present invention, is made of plurality of raw materials, in parts by weight, plurality of raw materials
It include: 20 parts of 90 homogenization material, 55 parts of white fused alumina, 3 parts of magnesite clinker, sintering 6 parts of magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist
6 parts and 4 parts of silicon powder, further include 0.2 part of additive and 0.2 part of explosion-proof fiber, additive is sodium tripolyphosphate.
The embodiment of the present invention also provides a kind of preparation method of pouring materialfor steel ladle: the following steps are included:
S1, premix；
Magnesite clinker, sintering magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist and silicon powder are stirred by mixing plant
Mix uniformly mixed premix powders.
S2, casting-maintenance-demoulding；
90 homogenization materials, white fused alumina and premix powders are packed into blender and are added water and stirred uniformly, it is above-mentioned for adding water quality
Then the 4% of the gross mass of pouring materialfor steel ladle is poured into in-mold molding, then natural curing 3 days, is then demoulded.
S3, baking；
First the pouring materialfor steel ladle blank after demoulding is placed under roaster, 40 hours low temperature is carried out with 200 DEG C of temperature
Baking then raises the temperature to 700 DEG C, carries out medium temperature baking in 36 hours, finally raises the temperature to 1000 DEG C, carry out 36
Pouring materialfor steel ladle is made in the high-temperature baking of hour.
Embodiment 2
A kind of pouring materialfor steel ladle provided in an embodiment of the present invention, is made of plurality of raw materials, in parts by weight, plurality of raw materials
It include: 60 parts of 90 homogenization material, 25 parts of white fused alumina, 5 parts of magnesite clinker, sintering 4 parts of magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist
10 parts and 2 parts of silicon powder, further include 1 part of additive and 0.1 part of explosion-proof fiber, additive REFPAC100.
The embodiment of the present invention also provides a kind of preparation method of pouring materialfor steel ladle: the following steps are included:
S1, premix；
Magnesite clinker, sintering magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist and silicon powder are stirred by mixing plant
Mix uniformly mixed premix powders.
S2, casting-maintenance-demoulding；
90 homogenization materials, white fused alumina and premix powders are packed into blender and are added water and stirred uniformly, it is above-mentioned for adding water quality
Then the 6% of the gross mass of pouring materialfor steel ladle is poured into in-mold molding, then natural curing 1 day, is then demoulded.
S3, baking；
First the pouring materialfor steel ladle blank after demoulding is placed under roaster, is dried with the low temperature that 10 DEG C of temperature carries out 48 hours
It is roasting, 201 DEG C are then raised the temperature to, medium temperature baking in 48 hours is carried out, finally raises the temperature to 701 DEG C, it is small to carry out 48
When high-temperature baking be made pouring materialfor steel ladle.
Embodiment 3
A kind of pouring materialfor steel ladle provided in an embodiment of the present invention, is made of plurality of raw materials, in parts by weight, plurality of raw materials
It include: 22 parts of 90 homogenization material, 53 parts of white fused alumina, 3 parts of magnesite clinker, sintering 6 parts of magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist
7 parts and 4 parts of silicon powder, further include 0.2 part of additive and 0.2 part of explosion-proof fiber, additive be 0.1 part of calgon and
0.1 part of sodium tripolyphosphate.
The embodiment of the present invention also provides a kind of preparation method of pouring materialfor steel ladle: the following steps are included:
S1, premix；
Magnesite clinker, sintering magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist and silicon powder are stirred by mixing plant
Mix uniformly mixed premix powders.
S2, casting-maintenance-demoulding；
90 homogenization materials, white fused alumina and premix powders are packed into blender and are added water and stirred uniformly, it is above-mentioned for adding water quality
Then the 4% of the gross mass of pouring materialfor steel ladle is poured into in-mold molding, then natural curing 3 days, is then demoulded.
S3, baking；
First the pouring materialfor steel ladle blank after demoulding is placed under roaster, 42 hours low temperature is carried out with 180 DEG C of temperature
Baking then raises the temperature to 640 DEG C, carries out medium temperature baking in 39 hours, finally raises the temperature to 930 DEG C, carry out 38
Pouring materialfor steel ladle is made in the high-temperature baking of hour.
Embodiment 4
A kind of pouring materialfor steel ladle provided in an embodiment of the present invention, is made of plurality of raw materials, in parts by weight, plurality of raw materials
It include: that 55 parts of 90 homogenization material, 29 parts of white fused alumina, 5 parts of magnesite clinker, sintering 4.5 parts of magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst are micro-
9 parts of powder and 205 parts of silicon powder, further include 1 part of additive and 0.1 part of explosion-proof fiber, additive is calgon.
The embodiment of the present invention also provides a kind of preparation method of pouring materialfor steel ladle: the following steps are included:
S1, premix；
Magnesite clinker, sintering magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist and silicon powder are stirred by mixing plant
Mix uniformly mixed premix powders.
S2, casting-maintenance-demoulding；
90 homogenization materials, white fused alumina and premix powders are packed into blender and are added water and stirred uniformly, it is above-mentioned for adding water quality
Then the 6% of the gross mass of pouring materialfor steel ladle is poured into in-mold molding, then natural curing 3 days, is then demoulded.
S3, baking；
First the pouring materialfor steel ladle blank after demoulding is placed under roaster, is dried with the low temperature that 70 DEG C of temperature carries out 46 hours
It is roasting, 520 DEG C are then raised the temperature to, medium temperature baking in 45 hours is carried out, finally raises the temperature to 860 DEG C, it is small to carry out 47
When high-temperature baking be made pouring materialfor steel ladle.
Embodiment 5
A kind of pouring materialfor steel ladle provided in an embodiment of the present invention, is made of plurality of raw materials, in parts by weight, plurality of raw materials
It include: 41 parts of 90 homogenization material, 39 parts of white fused alumina, 4 parts of magnesite clinker, sintering 5 parts of magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist
8.5 parts and 3.5 parts of silicon powder, further include 0.6 part of additive and 0.16 part of explosion-proof fiber, additive is sodium tripolyphosphate.
The embodiment of the present invention also provides a kind of preparation method of pouring materialfor steel ladle: the following steps are included:
S1, premix；
Magnesite clinker, sintering magnesium aluminate spinel, Activated Mg-Al Spinel Catalyst micro mist and silicon powder are stirred by mixing plant
Mix uniformly mixed premix powders.
S2, dress film-maintenance-demoulding；
90 homogenization materials, white fused alumina and premix powders are packed into blender and are added water and stirred uniformly, it is above-mentioned for adding water quality
Then the 5% of the gross mass of pouring materialfor steel ladle is poured into in-mold molding, then natural curing 2 days, is then demoulded.
S3, baking；
First the pouring materialfor steel ladle blank after demoulding is placed under roaster, 44 hours low temperature is carried out with 110 DEG C of temperature
Baking then raises the temperature to 470 DEG C, carries out medium temperature baking in 42 hours, finally raises the temperature to 880 DEG C, carry out 43
Pouring materialfor steel ladle is made in the high-temperature baking of hour.
Comparative example 1
The difference from embodiment 1 is that 90 homogenization materials to be replaced with to the white fused alumina of equal parts.
Comparative example 2
Difference with embodiment 5 is, plurality of raw materials include: 70 parts of 90 homogenization material, 16 parts of white fused alumina, 6 parts of magnesite clinker,
7 parts of magnesium aluminate spinel of sintering, 5 parts of Activated Mg-Al Spinel Catalyst micro mist and 5 parts of silicon powder further include 1 part of additive and explosion-proof
0.5 part of fiber, additive is sodium tripolyphosphate.
Comparative example 3
Difference with embodiment 3 is, sintering magnesium aluminate spinel is replaced with to the magnesite clinker of equal parts.
Comparative example 4
Difference with embodiment 4 is, Activated Mg-Al Spinel Catalyst micro mist is replaced with to the magnesite clinker of equal parts.
Comparative example 5
Difference with embodiment 5 is, in baking procedure, the premix powders after demoulding are directly placed in 900 DEG C of baking
Baking 129 hours in furnace.
Comparative example 6
Difference with embodiment 5 is, in baking procedure, the temperature of low-temperature bake is 300 DEG C, and the temperature of medium temperature baking is
750 DEG C, the temperature of high-temperature baking is 1100 DEG C.
Comparative example 7
Difference with embodiment 5 is, in baking procedure, the time of low-temperature bake is 30 hours, the time of medium temperature baking
It is 55 hours, the time of high-temperature baking is 25 hours.
Experimental example 1
Respectively according to the experimental method of " YB/T 5083-2014 " to the pouring materialfor steel ladle of embodiment 1-5 and comparative example 1-7
From refractoriness, strength at normal temperature (110 DEG C, 24 hours), cold crushing strength (110 DEG C, 24 hours) and heating permanent line
Change four aspects to be detected, and test service life under normal circumstances respectively, testing result is shown in Table 1.
1 testing result of table
According to table 1, the pouring materialfor steel ladle that 1-5 of the embodiment of the present invention is provided is in the premise using 90 homogenizing powder drops originally
Under, it can reach and use the comparable performance of white fused alumina.Pass through the baking method and temperature for limiting the compatibility of raw material and when preparation
Degree, can effectively enhance the refractoriness of pouring materialfor steel ladle, strength at normal temperature, cold crushing strength, the variation of heating permanent line with
And effective access times.
To sum up, the pouring materialfor steel ladle that the embodiment of the present invention proposes passes through 90 homogenization materials, white fused alumina, magnesite clinker, sintering magnesium
Aluminium point is brilliant, the mutual synergistic function between Activated Mg-Al Spinel Catalyst micro mist and silicon powder so that select 90 homogenization materials into
Under the premise of row effectively drops this, it also can guarantee that pouring materialfor steel ladle has outstanding high-temperature behavior, scour resistance and anti-erosion
Performance, and there is longer service life, by limiting the ratio of above-mentioned raw materials, further enhance the property of pouring materialfor steel ladle
Energy；The preparation method of the pouring materialfor steel ladle, by limiting roasting mode, baking temperature and baking time in preparation process, into
One step enhances the high-temperature behavior of pouring materialfor steel ladle.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of pouring materialfor steel ladle, which is characterized in that it is made of plurality of raw materials, and in parts by weight, a variety of raw materials include:
90 20-60 parts of homogenization materials, 25-55 parts of white fused alumina, 3-5 parts of magnesite clinker, magnesium aluminate spinel 4-6 parts of sintering, active magnalium point are brilliant
6-10 parts of stone micro mist and 2-4 parts of silicon powder.
2. pouring materialfor steel ladle according to claim 1, which is characterized in that in parts by weight, a variety of raw materials include: institute
State 22-58 parts of 90 homogenization material, white fused alumina 27-53 parts described, magnesite clinker 3-5 parts described, the sintering magnesium aluminate spinel 4.5-6
Part, 7-9 parts of the Activated Mg-Al Spinel Catalyst micro mist and silicon powder 2-4 parts described.
3. pouring materialfor steel ladle according to claim 1, which is characterized in that in parts by weight, a variety of raw materials include: institute
State 26-55 parts of 90 homogenization material, white fused alumina 29-50 parts described, magnesite clinker 3.5-5 parts described, the sintering magnesium aluminate spinel
4.5-5.5 parts, 7.5-9 parts of the Activated Mg-Al Spinel Catalyst micro mist and silicon powder 2.5-4 parts described.
4. pouring materialfor steel ladle according to claim 1 to 3, which is characterized in that in parts by weight, the raw material
It further include 0.2-1 parts of additive.
5. pouring materialfor steel ladle according to claim 4, which is characterized in that the additive is sodium tripolyphosphate, six inclined phosphorus
One or both of sour sodium and REFPAC100 are combined.
6. pouring materialfor steel ladle according to claim 1 to 3, which is characterized in that in parts by weight, the raw material
It further include 0.1-0.2 parts of explosion-proof fiber.
7. the preparation method of pouring materialfor steel ladle described in a kind of any one of claim 1-3, which is characterized in that including following
Step:
The magnesite clinker, the sintering magnesium aluminate spinel, the Activated Mg-Al Spinel Catalyst micro mist and the silicon powder is pre-
It is mixed even premix powders；
90 homogenization material, the white fused alumina and the premix powders are packed into after being added water and stirred uniformly in blender, casting
And it is demoulded after conserving；
It is toasted after demoulding.
8. the preparation method of pouring materialfor steel ladle according to claim 7, which is characterized in that in the pre-mixing process, premix
Time is 20-30 minutes.
9. the preparation method of pouring materialfor steel ladle according to claim 7, which is characterized in that adding water quality is that the ladle pours
The 4-6% of the gross mass of material feeding, curing time are 1-3 days.
10. the preparation method of pouring materialfor steel ladle according to claim 7, which is characterized in that the baking procedure includes low
Temperature baking, medium temperature baking and high-temperature baking, the low-temperature bake temperature are 10-200 DEG C, and the time is 40-48 hours；In described
Warm baking temperature is 201-700 DEG C, and the time is 36-48 hours；The high-temperature baking temperature is 701-1000 DEG C, time 36-
48 hours.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908904A (en) * | 2020-07-30 | 2020-11-10 | 海城市金福锋科技有限公司 | Stone castable for kiln and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6313056B1 (en) * | 1998-08-20 | 2001-11-06 | Harbison-Walker Refractories Company | Non-slumping sprayable refractory castables containing thermal black |
| CN101658910A (en) * | 2009-09-20 | 2010-03-03 | 浙江红鹰集团股份有限公司 | Composite slag weir and preparation method thereof |
| CN102744394A (en) * | 2012-07-26 | 2012-10-24 | 莱芜钢铁集团有限公司 | Flow control device for tundish of slab continuous caster and deslagging method thereof |
| CN105036773A (en) * | 2015-08-03 | 2015-11-11 | 丹东播磨耐火材料有限公司 | Steel ladle bottom concreting material |
| CN107814582A (en) * | 2017-11-22 | 2018-03-20 | 河南新拓耐火材料有限公司 | A kind of pouring materialfor steel ladle and its obtained ladle |
-
2018
- 2018-12-30 CN CN201811645440.7A patent/CN109503134B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6313056B1 (en) * | 1998-08-20 | 2001-11-06 | Harbison-Walker Refractories Company | Non-slumping sprayable refractory castables containing thermal black |
| CN101658910A (en) * | 2009-09-20 | 2010-03-03 | 浙江红鹰集团股份有限公司 | Composite slag weir and preparation method thereof |
| CN102744394A (en) * | 2012-07-26 | 2012-10-24 | 莱芜钢铁集团有限公司 | Flow control device for tundish of slab continuous caster and deslagging method thereof |
| CN105036773A (en) * | 2015-08-03 | 2015-11-11 | 丹东播磨耐火材料有限公司 | Steel ladle bottom concreting material |
| CN107814582A (en) * | 2017-11-22 | 2018-03-20 | 河南新拓耐火材料有限公司 | A kind of pouring materialfor steel ladle and its obtained ladle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908904A (en) * | 2020-07-30 | 2020-11-10 | 海城市金福锋科技有限公司 | Stone castable for kiln and preparation method thereof |
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