CN103951372B - A kind of high-strength refractory lagging material - Google Patents
A kind of high-strength refractory lagging material Download PDFInfo
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- CN103951372B CN103951372B CN201410155179.8A CN201410155179A CN103951372B CN 103951372 B CN103951372 B CN 103951372B CN 201410155179 A CN201410155179 A CN 201410155179A CN 103951372 B CN103951372 B CN 103951372B
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 239000010455 vermiculite Substances 0.000 claims abstract description 47
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 47
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 47
- 239000007767 bonding agent Substances 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 17
- 229920001353 Dextrin Polymers 0.000 claims abstract description 16
- 239000004375 Dextrin Substances 0.000 claims abstract description 16
- 239000004927 clay Substances 0.000 claims abstract description 16
- 235000019425 dextrin Nutrition 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- 206010013786 Dry skin Diseases 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000009736 wetting Methods 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000006253 efflorescence Methods 0.000 description 3
- 206010037844 rash Diseases 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000001007 puffing effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Ceramic Products (AREA)
Abstract
The present invention discloses a kind of high-strength refractory lagging material, taking expanded vermiculite, clay, refractory cements, dextrin as just expecting, and additional water-resisting agent and bonding agent, wherein water-resisting agent uses nano modified organosilicon rubber solutions, and bonding agent is inorganic bonding agent; Mechanical pressing mode is adopted to prepare the molded article of desired size, after drying, insulation, and high temperature roasting is baked and is obtained. The present invention has structure and volume stability is good, intensity height, cost are low, technique is simple, constructability and baker, and the advantages such as Environmental Safety.
Description
Technical field
The present invention relates to a kind of lagging material, particularly relate to a kind of taking expanded vermiculite, clay, refractory cements, dextrin as the high-strength refractory lagging material just expected.
Background technology
In industry field, every higher than the kiln body under normal temperature environment and body of heater, especially high temperature kiln, high-temperature smelting pot, in order to prevent the loss of heat, adopt lagging material at body of heater or kiln body. current 800 DEG C using the aluminum silicate ceramic fiberboard of the many employings of upper bit or tapetum fibrosum as the lagging material between kiln refractory lining and iron-clad, but threadiness lagging material is generally loose and porous structure, water-absorbent is unfavorable for by force casting and constructing, analysis can be occurred brilliant at 800��1000 DEG C of life-time service in addition, make fiber brittle efflorescence, cause thermal insulation layer slump thinning, structural distortion in kiln lining can be caused, loosen, fall brick etc., leakage aluminium phenomenon is easily caused as electrolyzer thermal insulation layer, as rotary kiln, ladle, thermal insulation layer between the refractory lining of tundish and torpedo car etc. and iron-clad easily causes middle and later periods surface temperature to raise, iron-clad is out of shape, affect furnace lining heat retaining property and resistance to overturning.
Energy prices are day by day high, traditional energy supply shortage, energy-saving and cost-reducing, and green production is imperative. The most urgent current task is that exploitation thermal conductivity is low, intensity height, high volume stability are excellent, the heat-insulation and heat-preservation material of 1000 DEG C of life-time service not efflorescence distortion.
Summary of the invention
It is an object of the invention to the deficiency in order to solve the problems of the technologies described above existence, it is provided that a kind of structure and volume stability is good, intensity height, cost are low, technique is simple, constructability and baker, and the high-strength refractory lagging material of Environmental Safety and and preparation method.
The technical solution adopted in the present invention is, taking expanded vermiculite, clay, refractory cements, dextrin as just expecting, and additional water-resisting agent and bonding agent; Mechanical pressing mode is adopted to prepare the molded article of desired size, after drying, insulation, and high temperature roasting is roasting, obtains this kind of high-strength refractory lagging material.
The weight percent of expanded vermiculite in just expecting, clay, refractory cements, dextrin is: expanded vermiculite accounts for the per-cent 80��95% of gross weight of just expecting, clay accounts for the per-cent 2��15% of gross weight of just expecting, refractory cements accounts for the per-cent 2��5% of gross weight of just expecting, and dextrin accounts for the per-cent 0��2% of gross weight of just expecting; It is 3��6% that water-resisting agent accounts for the per-cent of gross weight of just expecting; It is 25��30% that bonding agent accounts for the per-cent of gross weight of just expecting;
Wherein the granularity of expanded vermiculite is between 0.1��2mm, and granularity accounts for the 75��95% of expanded vermiculite gross weight being less than or equal to 1mm and be greater than between 0.1mm, and granularity is less than or equal to 2mm and is greater than between 1mm and accounts for the 5��25% of expanded vermiculite gross weight;
The wherein granularity < 0.044mm of well as clay fines, the chemical composition Al after deduction igloss2O335��48%, Al2O3+SiO2>=97%, basic oxide R2O��0.6%.
The wherein Al of refractory cements2O3> 50%, granularity < 0.088mm.
Wherein dextrin is industry yellow starch gum powder, granularity < 0.1mm.
Wherein water-resisting agent uses nano modified organosilicon rubber solutions.
Wherein bonding agent is inorganic bonding agent, is the one in aluminium dihydrogen phosphate, phosphoric acid, or the combination solution of two kinds.
The preparation method of the present invention is:
The preparation of step one, expanded vermiculite: after flaky vermiculite is slowly heated to 800 DEG C from normal temperature, drops into rapidly that to be heated in the process furnace of 1000 DEG C high-temperature roasting expanded, through the obtained expanded vermiculite material of broken selection by winnowing classification after expanded;
The preparation of step 2, matrix: clay, refractory cements, dextrin at mixing equipment, are carried out mixing by above-mentioned per-cent and obtain powder mix in 30-60 minute;
Step 3, expanded vermiculite material prepared by step one add bonding agent and stir, and stir after evenly and add water-resisting agent, stir wetting; Add the powder mix prepared by step 2 again to mix;
Step 4, the molded article preparing various desired size by conventional mechanical pressing mode, through 100��110 DEG C of dryings after 24��36 hours, at 230��300 DEG C, roasting 10��12 hours of high temperature roasting, obtain this kind of high-strength refractory lagging material.
Wherein the vermiculite in step one expanded after obtain through broken selection by winnowing classification, granularity 1��2mm, loose bulk density < 0.2g/cm3; Granularity 0.1��1mm, loose bulk density < 0.3g/cm3;
In step one, the thermal technology of vermiculite puffing have selected first preheating, then the mode of rapid heating, if this is because with the type of heating being warmed up at a slow speed 1000 DEG C, vermiculite be between layer division come, expand less, thus extend Bulking Time; If when vermiculite is heated rapidly to 1000 DEG C, under high temperature directly acts on, first vermiculite upper layer is expanded into thermal insulating layer on surface, causing the thermal resistance of whole particle to increase, heat transfer becomes slow, and the dewatering speed of granule interior diminishes, and cause reducing expanded efficiency, make expanded time lengthening; Therefore the thermal technology of the vermiculite puffing that the present invention is used, makes vermiculite popping fold can improve 30%, and the expanded time shortens 50%.
The expanded vermiculite that this kind of thermal technology obtains has unique layer sheet structure and a large amount of tiny pores, inlaying network structure by form layers sheet IPN time molded, thus has very little thermal conductivity, has bigger iris action to conducting heat; End article is made to have compressive strength height, the advantages such as thermal and insulating performance is excellent, and along with the change of temperature increment thermal conductivity is very little, can consistently provide the intensity of heat insulation and preservation effect and the uralite being similar to ceramic beaverboard at the high temperature of use temperature more than 1000 DEG C, having again certain toughness can relief of thermal stress; Expanded vermiculite employs different proportionings in the present invention in addition, particle is mated and density domination by the distribution of the continuous sized particles of heap sum of discontinuous sized particles with accumulation, make article construction highly stable, the product of at high temperature life-time service the present invention will occur analysis brilliant and efflorescence distortion as ceramic beaverboard, thus ensure that the heat retaining property of furnace lining and one-piece construction are stablized, can effectively extend converter life, improve operating environment around, ensure that normal production, decrease maintenance rate, thus reduce production cost.
Present invention uses nano modified organosilicon rubber solutions as water-resisting agent, nano modified organosilicon rubber solutions has unique water-repellancy, snappiness, and globality film is continuous in, fine and close seam; Stable performance, low temperature high temperature resistant, resistance to, super weather-proof, anti-ageingization; It also has active nanoparticle can penetrate into rapidly basic unit inside, it is cross-linked into dimensional network structure body, goods are made to have excellent thixotropy and the stability of dispersion, therefore nano modified organosilicon rubber solutions is as material of construction, is usually used in some buildingss such as building roof floor, toilet, parking lot; And the present invention innovates a nano modified organosilicon rubber solutions and is used in during this kind of flame-proof thermal insulation material fill a prescription, these advantages such as the hydrophobic nature taking full advantage of nano modified organosilicon rubber solutions, the goods of the present invention are not easily spontaneously wet out by water, facilitate construction and the baker of mould material; Therefore nano modified organosilicon rubber solutions serves most important effect in the present invention;
Present invention employs phosphoric acid salt high temperature adhesives, it is possible to fully effectively utilize the small-particle raw ore that output is big, cost is low, it is to increase the utilization ratio of granular raw ore and use temperature.
The present invention also takes full advantage of the reaction solidification of refractory cements and bonding agent, only need to adopt conventional hydropress drawing method and plastic, and integrated artistic is simple, is easy to produce in enormous quantities, can significantly reduce production cost.
In addition, the present invention is not detrimental to health and the material of contaminate environment containing any asbestos and ceramic fiber etc., healthy and safe, cleaner production.
The performance index of the present invention are: volume density 1.1��1.5g/cm3, compressive strength 15��35MPa, thermal conductivity 0.17��0.25W/mk, 1000 DEG C �� 24h hour line shrinking percentage��2%, 24 hours soaked rear compressive strength >=12MPa.
Therefore, the insulation lining that the present invention can be widely used between the refractory lining of electrolyzer, rotary kiln, ladle, tundish and torpedo car etc. and iron-clad, can greatly reduce iron-clad temperature, reduces iron-clad distortion, extends the iron-clad life-span, improves operating environment around.
Embodiment
Following examples specifically understand the present invention.
Embodiment 1:
The preparation of step one, expanded vermiculite: after flaky vermiculite is slowly heated to 800 DEG C from normal temperature, drops into rapidly that to be heated in the process furnace of 1000 DEG C high-temperature roasting expanded, through the obtained expanded vermiculite material of broken selection by winnowing classification after expanded;
The preparation of step 2, matrix: clay 2%, refractory cements 2%, dextrin 1%, be placed on mixing equipment carry out mixing within 60 minutes, obtain powder mix;
Step 3, expanded vermiculite material prepared by step one choose 95%, then add the bonding agent stirring that the per-cent accounting for gross weight of just expecting is 30%, and adding the per-cent accounting for gross weight of just expecting after stirring evenly is 6% water-resisting agent, stirs wetting; Add the powder mix mixing and stirring prepared by step 2 again;
Step 4, the molded article preparing various desired size by conventional mechanical pressing mode, through 110 DEG C of dryings after 36 hours, at 300 DEG C, roasting 12 hours of high temperature roasting, obtain this kind of high-strength refractory lagging material.
The volume density of the high-strength refractory lagging material that the present embodiment obtains is 1.14g/cm3, cold crushing strength is 17MPa, and thermal conductivity (hot-face temperature 1000 DEG C) is 0.165W/mk, 1000 DEG C �� 24h hour line shrinking percentage, 1.52%, 24 hours soaked rear compressive strength 12.5MPa.
Embodiment 2:
The preparation of step one, expanded vermiculite: after flaky vermiculite is slowly heated to 800 DEG C from normal temperature, drops into rapidly that to be heated in the process furnace of 1000 DEG C high-temperature roasting expanded, through the obtained expanded vermiculite material of broken selection by winnowing classification after expanded;
The preparation of step 2, matrix: clay 5%, refractory cements 3%, dextrin 2%, be placed on mixing equipment carry out mixing within 50 minutes, obtain powder mix;
Step 3, expanded vermiculite material prepared by step one choose 90%, then add the bonding agent stirring that the per-cent accounting for gross weight of just expecting is 28%, and adding the per-cent accounting for gross weight of just expecting after stirring evenly is 5% water-resisting agent, stirs wetting; Add the powder mix mixing and stirring prepared by step 2 again;
Step 4, the molded article preparing various desired size by conventional mechanical pressing mode, through 100 DEG C of dryings after 36 hours, at 280 DEG C, roasting 10 hours of high temperature roasting, obtain this kind of high-strength refractory lagging material.
The volume density of the high-strength refractory lagging material that the present embodiment obtains is 1.26g/cm3, cold crushing strength is 20MPa, and thermal conductivity (hot-face temperature 1000 DEG C) is 0.169W/mk, 1000 DEG C �� 24h hour line shrinking percentage, 1.45%, 24 hours soaked rear compressive strength 14.6MPa.
Embodiment 3:
The preparation of step one, expanded vermiculite: after flaky vermiculite is slowly heated to 800 DEG C from normal temperature, drops into rapidly that to be heated in the process furnace of 1000 DEG C high-temperature roasting expanded, through the obtained expanded vermiculite material of broken selection by winnowing classification after expanded;
The preparation of step 2, matrix: clay 8%, refractory cements 5%, dextrin 2%, be placed on mixing equipment carry out mixing within 40 minutes, obtain powder mix;
Step 3, expanded vermiculite material prepared by step one choose 85%, then add the bonding agent stirring that the per-cent accounting for gross weight of just expecting is 28%, and adding the per-cent accounting for gross weight of just expecting after stirring evenly is 5% water-resisting agent, stirs wetting; Add the powder mix mixing and stirring prepared by step 2 again;
Step 4, the molded article preparing various desired size by conventional mechanical pressing mode, through 105 DEG C of dryings after 30 hours, at 250 DEG C, roasting 10 hours of high temperature roasting, obtain this kind of high-strength refractory lagging material.
The volume density of the high-strength refractory lagging material that the present embodiment obtains is 1.38g/cm3, cold crushing strength is 25MPa, and thermal conductivity (hot-face temperature 1000 DEG C) is 0.219W/mk, 1000 DEG C �� 24h hour line shrinking percentage, 1.15%, 24 hours soaked rear compressive strength 18MPa.
Embodiment 4:
The preparation of step one, expanded vermiculite: after flaky vermiculite is slowly heated to 800 DEG C from normal temperature, drops into rapidly that to be heated in the process furnace of 1000 DEG C high-temperature roasting expanded, through the obtained expanded vermiculite material of broken selection by winnowing classification after expanded;
The preparation of step 2, matrix: clay 15%, refractory cements 5%, dextrin 0%, be placed on mixing equipment carry out mixing within 30 minutes, obtain powder mix;
Step 3, expanded vermiculite material prepared by step one choose 80%, then add the bonding agent stirring that the per-cent accounting for gross weight of just expecting is 25%, and adding the per-cent accounting for gross weight of just expecting after stirring evenly is 3% water-resisting agent, stirs wetting; Add the powder mix mixing and stirring prepared by step 2 again;
Step 4, the molded article preparing various desired size by conventional mechanical pressing mode, through 110 DEG C of dryings after 24 hours, at 230 DEG C, roasting 12 hours of high temperature roasting, obtain this kind of high-strength refractory lagging material.
The volume density of the high-strength refractory lagging material that the present embodiment obtains is 1.49g/cm3, cold crushing strength is 35MPa, and thermal conductivity (hot-face temperature 1000 DEG C) is 0.248W/mk, 1000 DEG C �� 24h hour line shrinking percentage, 0.96%, 24 hours soaked rear compressive strength 20MPa.
Claims (6)
1. a high-strength refractory lagging material, it is characterised in that: taking expanded vermiculite, clay, refractory cements, dextrin as just expecting, additional water-resisting agent and bonding agent; The weight percent of expanded vermiculite in just expecting, clay, refractory cements, dextrin is: expanded vermiculite accounts for the per-cent 80��95% of gross weight of just expecting, clay accounts for the per-cent 2��15% of gross weight of just expecting, refractory cements accounts for the per-cent 2��5% of gross weight of just expecting, and dextrin accounts for the per-cent 0��2% of gross weight of just expecting; It is 3��6% that water-resisting agent accounts for the per-cent of gross weight of just expecting; It is 25��30% that bonding agent accounts for the per-cent of gross weight of just expecting; The granularity of expanded vermiculite is between 0.1��2mm, and granularity accounts for the 75��95% of expanded vermiculite gross weight being less than or equal to 1mm and be greater than between 0.1mm, and granularity is less than or equal to 2mm and is greater than between 1mm and accounts for the 5��25% of expanded vermiculite gross weight; The preparation method of this kind of high-strength refractory lagging material, the preparation of step one, expanded vermiculite: after flaky vermiculite is slowly heated to 800 DEG C from normal temperature, drop into rapidly that to be heated in the process furnace of 1000 DEG C high-temperature roasting expanded, through the obtained expanded vermiculite material of broken selection by winnowing classification after expanded; The preparation of step 2, matrix: clay, refractory cements, dextrin at mixing equipment, are carried out mixing by above-mentioned per-cent and obtain powder mix in 30-60 minute; Step 3, expanded vermiculite material prepared by step one add bonding agent and stir, and stir after evenly and add water-resisting agent, stir wetting; Add the powder mix prepared by step 2 again to mix; Step 4, the molded article preparing various desired size by conventional mechanical pressing mode, through 100��110 DEG C of dryings after 24��36 hours, at 230��300 DEG C, roasting 10��12 hours of high temperature roasting, obtain this kind of high-strength refractory lagging material.
2. a kind of high-strength refractory lagging material according to claim 1, it is characterised in that: the granularity < 0.044mm of well as clay fines, the chemical composition Al after deduction igloss2O335��48%, Al2O3+SiO2>=97%, basic oxide R2O��0.6%.
3. a kind of high-strength refractory lagging material according to claim 1, it is characterised in that: the Al of refractory cements2O3> 50%, granularity < 0.088mm.
4. a kind of high-strength refractory lagging material according to claim 1, it is characterised in that: dextrin is industry yellow starch gum powder, granularity < 0.1mm.
5. a kind of high-strength refractory lagging material according to claim 1, it is characterised in that: water-resisting agent uses nano modified organosilicon rubber solutions.
6. a kind of high-strength refractory lagging material according to claim 1, it is characterised in that: bonding agent is inorganic bonding agent, is the one in aluminium dihydrogen phosphate, phosphoric acid, or the combination solution of two kinds.
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| KR101619331B1 (en) * | 2015-09-23 | 2016-05-10 | 주식회사 버미코리아 | Slim Vermiculite Board for Construction Finishing |
| CN114621016B (en) * | 2022-03-18 | 2023-03-14 | 安徽碳鑫科技有限公司 | Preparation process of refractory heat-insulating material |
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| US4664712A (en) * | 1986-04-01 | 1987-05-12 | Ignacio Cisneros | Thermal insulating material and method of production thereof |
| CN1037697A (en) * | 1988-05-18 | 1989-12-06 | 株洲市煤矸石制品厂 | The high temperature expansion pearlite insulated material |
| CN1051033A (en) * | 1989-10-20 | 1991-05-01 | 湖北省襄樊市胶粘技术研究所 | Non-burning antifire light profile and manufacture method thereof |
| CN1259926A (en) * | 1997-06-12 | 2000-07-12 | 温泽技术有限公司 | Method for preparing exfoliated vermiculite for mfg. finished products |
| CN1370136A (en) * | 1999-06-07 | 2002-09-18 | 联合矿物产品公司 | Lightweight dry refractory |
| CN103641499A (en) * | 2013-11-29 | 2014-03-19 | 凤冈县凤鸣农用机械制造有限公司 | Refractory stove core and preparation method thereof |
-
2014
- 2014-04-18 CN CN201410155179.8A patent/CN103951372B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664712A (en) * | 1986-04-01 | 1987-05-12 | Ignacio Cisneros | Thermal insulating material and method of production thereof |
| CN1037697A (en) * | 1988-05-18 | 1989-12-06 | 株洲市煤矸石制品厂 | The high temperature expansion pearlite insulated material |
| CN1051033A (en) * | 1989-10-20 | 1991-05-01 | 湖北省襄樊市胶粘技术研究所 | Non-burning antifire light profile and manufacture method thereof |
| CN1259926A (en) * | 1997-06-12 | 2000-07-12 | 温泽技术有限公司 | Method for preparing exfoliated vermiculite for mfg. finished products |
| CN1370136A (en) * | 1999-06-07 | 2002-09-18 | 联合矿物产品公司 | Lightweight dry refractory |
| CN103641499A (en) * | 2013-11-29 | 2014-03-19 | 凤冈县凤鸣农用机械制造有限公司 | Refractory stove core and preparation method thereof |
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Effective date of registration: 20171127 Address after: 014010 the Inner Mongolia Autonomous Region Baotou rare earth hi tech Zone hopes the park wants 100 meters west of the north gate of aluminum industry Patentee after: INNER MONGOLIA BAOGANG LIER HIGH-TEMPERATURE MATERIALS CO., LTD. Address before: 471039 Henan Province, Luoyang city Jianxi District Dragon Linlu No. 50 neighborhood 16 Building 1 No. 301 Patentee before: Zhang Keqiang |