CN106220198B - A kind of refractory composite and preparation method thereof - Google Patents
A kind of refractory composite and preparation method thereof Download PDFInfo
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- CN106220198B CN106220198B CN201610595252.2A CN201610595252A CN106220198B CN 106220198 B CN106220198 B CN 106220198B CN 201610595252 A CN201610595252 A CN 201610595252A CN 106220198 B CN106220198 B CN 106220198B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 46
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 26
- 239000006004 Quartz sand Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000440 bentonite Substances 0.000 claims abstract description 23
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 23
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 23
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 23
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 22
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 22
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 22
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 22
- 239000004359 castor oil Substances 0.000 claims abstract description 21
- 235000019438 castor oil Nutrition 0.000 claims abstract description 21
- 239000004927 clay Substances 0.000 claims abstract description 21
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 20
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 20
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 19
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 11
- 239000005457 ice water Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 9
- 229910003978 SiClx Inorganic materials 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 claims 1
- 238000001354 calcination Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 238000010791 quenching Methods 0.000 claims 1
- 230000000171 quenching effect Effects 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000011819 refractory material Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 235000004443 Ricinus communis Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 2
- 239000008159 sesame oil Substances 0.000 description 2
- 235000011803 sesame oil Nutrition 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011822 basic refractory Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011821 neutral refractory Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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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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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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Abstract
The invention discloses a kind of refractory composites and preparation method thereof, are prepared by the raw material of following parts by weight：Fire clay, 50~60 parts；Quartz sand, 25~35 parts；Blanc fixe, 10~20 parts；Titanium dioxide, 12~16 parts；Talcum powder, 10~14 parts；Bentonite, 8~12 parts；Silicon nitride, 4~6 parts；Magnesium carbonate, 10~14 parts；Dry powder, 1.5~2.5 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 4~6 parts；Blown castor oil, 4~6 parts；Water, 10~14 parts.Refractory material refractoriness provided by the invention is high, and thermal coefficient is small, has excellent fire resistance；The preparation method of the material is simple, and manufacturing cost is low.
Description
Technical field
The invention belongs to field of compound material, and in particular to a kind of refractory composite and preparation method thereof.
Background technique
Refractory material is usually divided into common refractory, high grade refractory and superrefractory by refractoriness height；
It is divided into acid refractory, neutral refractory and basic refractory by chemical characteristic.In addition, there are also for special occasions
Refractory material.Refractory material refers to the inorganic non-metallic for being applied to the production equipments liners such as metallurgy, petrochemical industry, cement, ceramics at present
Material, with the continuous increase of extensive use and demand of the refractory material in all trades and professions.
Summary of the invention
The first object of the present invention is to provide a kind of refractory composite, in high-temperature service；
The second object of the present invention is to provide the preparation method of above-mentioned refractory composite.
Above-mentioned purpose of the invention is achieved by following technical solution：
A kind of refractory composite is prepared by the raw material of following parts by weight：Fire clay, 50~60 parts；Quartz sand,
25~35 parts；Blanc fixe, 10~20 parts；Titanium dioxide, 12~16 parts；Talcum powder, 10~14 parts；Bentonite, 8~12 parts；Nitrogen
SiClx, 4~6 parts；Magnesium carbonate, 10~14 parts；Dry powder, 1.5~2.5 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 4~6
Part；Blown castor oil, 4~6 parts；Water, 10~14 parts.
Further, the refractory composite is prepared by the raw material of following parts by weight：Fire clay, 55 parts；
Quartz sand, 30 parts；Blanc fixe, 15 parts；Titanium dioxide, 14 parts；Talcum powder, 12 parts；Bentonite, 10 parts；Silicon nitride, 5 parts；Carbonic acid
Magnesium, 12 parts；Dry powder, 2 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 5 parts；Blown castor oil, 5 parts；Water, 12 parts.
The preparation method of above-mentioned refractory composite, includes the following steps：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 450~550 DEG C of high temperature
It is calcined 2~3 hours in furnace, then takes out and grind after cooling；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed, grind by step S2, and water is added,
It stirs evenly, places 2~4 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil
And hydroxyethyl cellulose, with 1200~1600rpm revolving speed stirring 10~20 minutes, 40~50 DEG C of drying after taking-up crushed compacting
At base；
Step S4 puts the step S3 blank prepared in sintering furnace into, under nitrogen protection effect, 1600~1800 DEG C of roastings
It burns 15~25 hours, after taking out cooling, is roasted 20~30 hours then at 1200~1400 DEG C, after taking-up is cooled to 110~130 DEG C
It is placed in ice water and is quenched 2~3 hours to get the refractory composite.
Further, fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 500 DEG C of height
It is calcined 2.5 hours in warm furnace, then takes out and grind after cooling.
Further, it is ground described in step S1 and refers to that it is 200~300 targeted fine powders that mixture, which is ground into partial size,.
Further, titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed by step S2, are ground
To 200~300 mesh.
Further, step S2 is placed 3 days after mixing evenly.
Further, step S3 is added after blown castor oil and hydroxyethyl cellulose with 1400rpm revolving speed stirring 15 minutes,
45 DEG C of drying after taking-up.
Further, step S4 is under nitrogen protection effect, and 1700 DEG C roast 20 hours, after taking out cooling, then at 1300
DEG C roasting 25 hours, taking-up, which is cooled to 120 DEG C and is placed in ice water, to be quenched 2.5 hours.
Advantages of the present invention：
Refractory material refractoriness provided by the invention is high, and thermal coefficient is small, has excellent fire resistance；The system of the material
Preparation Method is simple, and manufacturing cost is low.
Specific embodiment
Essentiality content of the invention is further illustrated below with reference to embodiment, but present invention protection model is not limited with this
It encloses.Although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that, it can be right
Technical solution of the present invention is modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention.
Embodiment 1：The preparation of refractory composite
Parts by weight of raw materials ratio：
Fire clay, 55 parts；Quartz sand, 30 parts；Blanc fixe, 15 parts；Titanium dioxide, 14 parts；Talcum powder, 12 parts；Bentonite,
10 parts；Silicon nitride, 5 parts；Magnesium carbonate, 12 parts；Dry powder, 2 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 5 parts；Aoxidize castor
Sesame oil, 5 parts；Water, 12 parts.
Preparation method：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 500 DEG C of high temperature furnace and are forged
It burns 2.5 hours, then takes out and ground after cooling to 200~300 mesh；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed by step S2, grind to 200~
300 mesh are added water, stir evenly, and place 3 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil
And hydroxyethyl cellulose, with 1400rpm revolving speed stirring 15 minutes, 45 DEG C of drying after taking-up, crushing is pressed into base；
Step S4 puts the step S3 blank prepared in sintering furnace into, and under nitrogen protection effect, 1700 DEG C of roastings 20 are small
When, take out it is cooling after, roasted 25 hours then at 1300 DEG C, taking-up, which is cooled to 120 DEG C and is placed in ice water, is quenched 2.5 hours, i.e.,
?.
Embodiment 2：The preparation of refractory composite
Parts by weight of raw materials ratio：
Fire clay, 50 parts；Quartz sand, 25 parts；Blanc fixe, 10 parts；Titanium dioxide, 12 parts；Talcum powder, 10 parts；Bentonite,
8 parts；Silicon nitride, 4 parts；Magnesium carbonate, 10 parts；Dry powder, 1.5 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 4 parts；Aoxidize castor
Sesame oil, 4 parts；Water, 10 parts.
Preparation method：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 500 DEG C of high temperature furnace and are forged
It burns 2.5 hours, then takes out and ground after cooling to 200~300 mesh；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed by step S2, grind to 200~
300 mesh are added water, stir evenly, and place 3 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil
And hydroxyethyl cellulose, with 1400rpm revolving speed stirring 15 minutes, 45 DEG C of drying after taking-up, crushing is pressed into base；
Step S4 puts the step S3 blank prepared in sintering furnace into, and under nitrogen protection effect, 1700 DEG C of roastings 20 are small
When, take out it is cooling after, roasted 25 hours then at 1300 DEG C, taking-up, which is cooled to 120 DEG C and is placed in ice water, is quenched 2.5 hours, i.e.,
?.
Embodiment 3：The preparation of refractory composite
Parts by weight of raw materials ratio：
Fire clay, 60 parts；Quartz sand, 35 parts；Blanc fixe, 20 parts；Titanium dioxide, 16 parts；Talcum powder, 14 parts；Bentonite,
12 parts；Silicon nitride, 6 parts；Magnesium carbonate, 14 parts；Dry powder, 2.5 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 6 parts；Oxidation
Castor oil, 6 parts；Water, 14 parts.
Preparation method：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 500 DEG C of high temperature furnace and are forged
It burns 2.5 hours, then takes out and ground after cooling to 200~300 mesh；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed by step S2, grind to 200~
300 mesh are added water, stir evenly, and place 3 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil
And hydroxyethyl cellulose, with 1400rpm revolving speed stirring 15 minutes, 45 DEG C of drying after taking-up, crushing is pressed into base；
Step S4 puts the step S3 blank prepared in sintering furnace into, and under nitrogen protection effect, 1700 DEG C of roastings 20 are small
When, take out it is cooling after, roasted 25 hours then at 1300 DEG C, taking-up, which is cooled to 120 DEG C and is placed in ice water, is quenched 2.5 hours, i.e.,
?.
Embodiment 4：The preparation of refractory composite
Parts by weight of raw materials ratio：
Fire clay, 55 parts；Quartz sand, 30 parts；Blanc fixe, 15 parts；Titanium dioxide, 14 parts；Talcum powder, 12 parts；Bentonite,
10 parts；Silicon nitride, 5 parts；Magnesium carbonate, 12 parts；Dry powder, 1.5 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 5 parts；Oxidation
Castor oil, 5 parts；Water, 12 parts.
Preparation method：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 500 DEG C of high temperature furnace and are forged
It burns 2.5 hours, then takes out and ground after cooling to 200~300 mesh；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed by step S2, grind to 200~
300 mesh are added water, stir evenly, and place 3 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil
And hydroxyethyl cellulose, with 1400rpm revolving speed stirring 15 minutes, 45 DEG C of drying after taking-up, crushing is pressed into base；
Step S4 puts the step S3 blank prepared in sintering furnace into, and under nitrogen protection effect, 1700 DEG C of roastings 20 are small
When, take out it is cooling after, roasted 25 hours then at 1300 DEG C, taking-up, which is cooled to 120 DEG C and is placed in ice water, is quenched 2.5 hours, i.e.,
?.
Embodiment 5：The preparation of refractory composite
Parts by weight of raw materials ratio：
Fire clay, 55 parts；Quartz sand, 30 parts；Blanc fixe, 15 parts；Titanium dioxide, 14 parts；Talcum powder, 12 parts；Bentonite,
10 parts；Silicon nitride, 5 parts；Magnesium carbonate, 12 parts；Dry powder, 2.5 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 5 parts；Oxidation
Castor oil, 5 parts；Water, 12 parts.
Preparation method：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 500 DEG C of high temperature furnace and are forged
It burns 2.5 hours, then takes out and ground after cooling to 200~300 mesh；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed by step S2, grind to 200~
300 mesh are added water, stir evenly, and place 3 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil
And hydroxyethyl cellulose, with 1400rpm revolving speed stirring 15 minutes, 45 DEG C of drying after taking-up, crushing is pressed into base；
Step S4 puts the step S3 blank prepared in sintering furnace into, and under nitrogen protection effect, 1700 DEG C of roastings 20 are small
When, take out it is cooling after, roasted 25 hours then at 1300 DEG C, taking-up, which is cooled to 120 DEG C and is placed in ice water, is quenched 2.5 hours, i.e.,
?.
Embodiment 6：Comparative example
Parts by weight of raw materials ratio：Fire clay, 55 parts；Quartz sand, 30 parts；Blanc fixe, 15 parts；Titanium dioxide, 14 parts；Talcum
Powder, 12 parts；Bentonite, 10 parts；Silicon nitride, 5 parts；Magnesium carbonate, 12 parts；Dry powder, 1 times of silicon nitride parts by weight；Ethoxy is fine
Dimension element, 5 parts；Blown castor oil, 5 parts；Water, 12 parts.
Preparation method：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 500 DEG C of high temperature furnace and are forged
It burns 2.5 hours, then takes out and ground after cooling to 200~300 mesh；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed by step S2, grind to 200~
300 mesh are added water, stir evenly, and place 3 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil
And hydroxyethyl cellulose, with 1400rpm revolving speed stirring 15 minutes, 45 DEG C of drying after taking-up, crushing is pressed into base；
Step S4 puts the step S3 blank prepared in sintering furnace into, and under nitrogen protection effect, 1700 DEG C of roastings 20 are small
When, take out it is cooling after, roasted 25 hours then at 1300 DEG C, taking-up, which is cooled to 120 DEG C and is placed in ice water, is quenched 2.5 hours, i.e.,
?.
Embodiment 7：Comparative example
Parts by weight of raw materials ratio：Fire clay, 55 parts；Quartz sand, 30 parts；Blanc fixe, 15 parts；Titanium dioxide, 14 parts；Talcum
Powder, 12 parts；Bentonite, 10 parts；Silicon nitride, 5 parts；Magnesium carbonate, 12 parts；Dry powder, 3 times of silicon nitride parts by weight；Ethoxy is fine
Dimension element, 5 parts；Blown castor oil, 5 parts；Water, 12 parts.
Preparation method：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 500 DEG C of high temperature furnace and are forged
It burns 2.5 hours, then takes out and ground after cooling to 200~300 mesh；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed by step S2, grind to 200~
300 mesh are added water, stir evenly, and place 3 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil
And hydroxyethyl cellulose, with 1400rpm revolving speed stirring 15 minutes, 45 DEG C of drying after taking-up, crushing is pressed into base；
Step S4 puts the step S3 blank prepared in sintering furnace into, and under nitrogen protection effect, 1700 DEG C of roastings 20 are small
When, take out it is cooling after, roasted 25 hours then at 1300 DEG C, taking-up, which is cooled to 120 DEG C and is placed in ice water, is quenched 2.5 hours, i.e.,
?.
Embodiment 8：Effect example
The refractoriness and thermal coefficient for the material that respectively prepared by testing example 1~7, as a result see the table below：
| Refractoriness DEG C | Thermal coefficient W/ (mk) | |
| Embodiment 1 | 1980 | 0.31 |
| Embodiment 2 | 1950 | 0.35 |
| Embodiment 3 | 1960 | 0.34 |
| Embodiment 4 | 1940 | 0.37 |
| Embodiment 5 | 1960 | 0.35 |
| Embodiment 6 | 1470 | 0.89 |
| Embodiment 7 | 1490 | 0.94 |
The result shows that refractory material refractoriness provided by the invention is high, thermal coefficient is small, has excellent fire resistance；
The preparation method of the material is simple, and manufacturing cost is low.
The effect of above-described embodiment indicates that essentiality content of the invention, but protection of the invention is not limited with this
Range.Those skilled in the art should understand that can with modification or equivalent replacement of the technical solution of the present invention are made,
Without departing from the essence and protection scope of technical solution of the present invention.
Claims (8)
1. a kind of preparation method of refractory composite, which is characterized in that be prepared by the raw material of following parts by weight：Fire resisting
Mud, 50~60 parts；Quartz sand, 25~35 parts；Blanc fixe, 10~20 parts；Titanium dioxide, 12~16 parts；Talcum powder, 10~14
Part；Bentonite, 8~12 parts；Silicon nitride, 4~6 parts；Magnesium carbonate, 10~14 parts；Dry powder, the 1.5~2.5 of silicon nitride parts by weight
Times；Hydroxyethyl cellulose, 4~6 parts；Blown castor oil, 4~6 parts；Water, 10~14 parts；Preparation method includes the following steps：
Fire clay, quartz sand, magnesium carbonate and blanc fixe are uniformly mixed by step S1, are placed in 450~550 DEG C of high temperature furnace
Calcining 2~3 hours, then takes out and grinds after cooling；
Titanium dioxide, talcum powder, bentonite, silicon nitride and dry powder are uniformly mixed, grind by step S2, and water, stirring is added
Uniformly, it places 2~4 days；
Step S3, mixture prepared by step S1 and step S2 are added in high speed mixer, add blown castor oil and hydroxyl
Ethyl cellulose, with 1200~1600rpm revolving speed stirring 10~20 minutes, 40~50 DEG C of drying after taking-up, crushing is pressed into base；
Step S4 puts the step S3 blank prepared in sintering furnace into, under nitrogen protection effect, 1600~1800 DEG C of roastings 15
It~25 hours, after taking out cooling, is roasted 20~30 hours then at 1200~1400 DEG C, taking-up is cooled to 110~130 DEG C and is placed on
2~3 hours are quenched in ice water to get the refractory composite.
2. preparation method according to claim 1, which is characterized in that be prepared by the raw material of following parts by weight：It is resistance to
Chamotte, 55 parts；Quartz sand, 30 parts；Blanc fixe, 15 parts；Titanium dioxide, 14 parts；Talcum powder, 12 parts；Bentonite, 10 parts；Nitridation
Silicon, 5 parts；Magnesium carbonate, 12 parts；Dry powder, 2 times of silicon nitride parts by weight；Hydroxyethyl cellulose, 5 parts；Blown castor oil, 5 parts；
Water, 12 parts.
3. preparation method according to claim 1, it is characterised in that：Step S1 is by fire clay, quartz sand, magnesium carbonate and again
Spar powder is uniformly mixed, and is placed in 500 DEG C of high temperature furnace and is calcined 2.5 hours, then takes out and grind after cooling.
4. preparation method according to claim 1, it is characterised in that：It is ground described in step S1 and refers to and grind mixture
Wearing into partial size is 200~300 targeted fine powders.
5. preparation method according to claim 1, it is characterised in that：Step S2 is by titanium dioxide, talcum powder, bentonite, nitrogen
SiClx and dry powder are uniformly mixed, and are ground to 200~300 mesh.
6. preparation method according to claim 1, it is characterised in that：Step S2 is placed 3 days after mixing evenly.
7. preparation method according to claim 1, it is characterised in that：Blown castor oil and hydroxy ethyl fiber is added in step S3
With 1400rpm revolving speed stirring 15 minutes after element, 45 DEG C of drying after taking-up.
8. preparation method according to claim 1, it is characterised in that：Step S4 is under nitrogen protection effect, 1700 DEG C of roastings
Burn 20 hours, take out it is cooling after, roasted 25 hours then at 1300 DEG C, taking-up is cooled to 120 DEG C, and to be placed on quenching 2.5 in ice water small
When.
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| CN101928154A (en) * | 2010-09-02 | 2010-12-29 | 吴江市液铸液压件铸造有限公司 | Coating for repairing molded windshield ring for casting furnace |
| CN102617164A (en) * | 2012-03-28 | 2012-08-01 | 南车戚墅堰机车车辆工艺研究所有限公司 | Acid lining material of medium-frequency induction furnace and furnace building method thereof |
| CN102964134A (en) * | 2012-11-19 | 2013-03-13 | 武汉市三林耐火材料有限责任公司 | Induction smelting furnace lining refractory material and manufacture method thereof |
| CN104355629A (en) * | 2014-10-13 | 2015-02-18 | 合肥庭索环保材料有限公司 | Refractory material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928154A (en) * | 2010-09-02 | 2010-12-29 | 吴江市液铸液压件铸造有限公司 | Coating for repairing molded windshield ring for casting furnace |
| CN102617164A (en) * | 2012-03-28 | 2012-08-01 | 南车戚墅堰机车车辆工艺研究所有限公司 | Acid lining material of medium-frequency induction furnace and furnace building method thereof |
| CN102964134A (en) * | 2012-11-19 | 2013-03-13 | 武汉市三林耐火材料有限责任公司 | Induction smelting furnace lining refractory material and manufacture method thereof |
| CN104355629A (en) * | 2014-10-13 | 2015-02-18 | 合肥庭索环保材料有限公司 | Refractory material and preparation method thereof |
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