CN111410544A - Method for manufacturing non-flexible refractory fiber product - Google Patents
Method for manufacturing non-flexible refractory fiber product Download PDFInfo
- Publication number
- CN111410544A CN111410544A CN202010358841.5A CN202010358841A CN111410544A CN 111410544 A CN111410544 A CN 111410544A CN 202010358841 A CN202010358841 A CN 202010358841A CN 111410544 A CN111410544 A CN 111410544A
- Authority
- CN
- China
- Prior art keywords
- fiber
- drying
- fibers
- blank
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
Abstract
The invention discloses a method for manufacturing a non-flexible refractory fiber product, which comprises the following steps: the method comprises the following steps: preparing an adhesive: adding a polymerization gelling curing agent into a refractory inorganic adhesive to blend the adhesive for fibers; step two: preparing glue solution: adding tap water into the fiber adhesive to blend glue solution with solid content of 1-35%; step three: preparing slurry: adding fibers into the glue solution, and blending into fiber slurry with the fiber content of 2-6%; step four: and (3) suction filtration dehydration forming: and feeding the slurry into a die with a filter screen for vacuum filtration to obtain a wet fiber blank. The invention provides a method for preparing a non-flexible fiber product, which aims to solve the problems that the prior non-flexible refractory fiber product has different textures of hard outside and soft inside, has different hardness and has uneven texture or can smoke, carbonize and blacken in a high-temperature environment during use, and has reduced mechanical strength.
Description
Technical Field
The invention relates to the field of refractory and heat-insulating materials, in particular to a method for manufacturing a non-flexible refractory fiber product.
Background
The refractory fiber products are divided into two types of flexible products and non-flexible products, wherein the typical flexible refractory fiber products are aluminum silicate fiber felts or blankets, and the typical non-flexible refractory fiber products are aluminum silicate refractory fiber boards and refractory fiber bricks. Taking an aluminum silicate refractory fiber board as an example, the aluminum silicate refractory fiber board is prepared by using refractory fiber as a main material and inorganic adhesive silica sol as an auxiliary material through vacuum filtration or mechanical extrusion molding and drying. The existing production process comprises the following steps: 1. preparing slurry: uniformly mixing aluminum silicate fibers with the length of 1-3mm, a filling material and an adhesive glue solution to prepare a proper slurry; 2. pumping the slurry into a mould with a filter screen, and pumping out excessive water by using a vacuum air extractor; 3. and (3) pressing and forming: putting the wet blank with partial moisture extracted in vacuum on a pressure forming machine, continuously pressing partial moisture out with high pressure, and simultaneously pressing the thickness of the blank to be thin again; 4. drying: the pressed wet blank enters a drying device to discharge water in the drying device for drying; 5. shaping and processing: correcting or further machining the dried plate blank to manufacture various products; 6. packaging: packaged (or unpackaged) in a suitable manner into a product suitable for use as a lining for high, medium and low temperature furnaces and the like.
The production process of the refractory fiber board has the following disadvantages:
1. black and smoking in the using process: as the organic glue such as cationic starch and the like must be added into the used adhesive so as to overcome the phenomenon that the effective components of the inorganic adhesive migrate from the inside to the surface in the drying process of the wet blank to cause the texture of hard surface and soft core, the organic glue is not fire-resistant and can be burnt and carbonized to turn black at high temperature or in flame,
2. the mechanical strength is reduced: because the organic glue is used, the organic glue loses the adhesive force after being carbonized at high temperature, and the mechanical strength of the original anti-scouring is reduced.
3. The product is easy to absorb moisture: due to the starch used, the product is easy to absorb moisture and heavy
4. The slurry used in the production process is easily polluted by microorganisms, and the phenomena of mildewing and the like occur, so that the clean water is replaced at a certain time to discharge sewage, and the environment is not friendly.
5. The slurry tank is cleaned at intervals due to microbial contamination caused by the use of starch.
6. Because organic adhesives such as starch and the like cannot resist high temperature and can be combusted, the prior art only adopts slow drying for more than ten hours at 90-150 ℃, has low efficiency, cannot use a microwave oven or a flame and other quick drying methods, and cannot realize production line operation production.
7. Black and smoking in the using process: as the organic glue such as cationic starch and the like must be added into the used adhesive so as to overcome the phenomenon that the effective components of the inorganic adhesive migrate from the inside to the surface in the drying process of the wet blank to cause the texture of hard surface and soft core, the organic glue is not fire-resistant and can be burnt and carbonized to turn black at high temperature or in flame,
8. the mechanical strength is reduced: because the organic glue is used, the organic glue loses the adhesive force after being carbonized at high temperature, and the mechanical strength of the original anti-scouring is reduced.
9. The product is easy to absorb moisture: due to the starch used, the product is easy to absorb moisture and heavy
10. The slurry used in the production process is easily polluted by microorganisms, and the phenomena of mildewing and the like occur, so that the clean water is replaced at a certain time to discharge sewage, and the environment is not friendly.
11. The slurry tank is cleaned at intervals due to microbial contamination caused by the use of starch.
Because organic adhesives such as starch and the like cannot resist high temperature and can be combusted, the prior art only adopts slow drying for more than ten hours at 90-150 ℃, has low efficiency, cannot use a microwave oven or a flame and other quick drying methods, and cannot realize production line operation production
Patent No. CN102344276A states that it can produce aluminum silicate fiber board with uniform texture and without blackening, but needs refrigeration equipment to process it, and because of the need of expensive equipment investment, it has not been widely used.
It has been a problem in the industry to make a non-flexible refractory fibrous product that is uniform in texture, does not burn at high temperatures or in flames, does not generate smoke, is not carbonized to black, and is completely environmentally friendly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for manufacturing a non-flexible refractory fiber product.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a method for manufacturing a non-flexible refractory fiber product, which comprises the following steps:
the method comprises the following steps: preparing an adhesive: adding a polymerization gelling curing agent into a refractory inorganic adhesive to blend the adhesive for fibers;
step two: preparing glue solution: adding tap water into the fiber adhesive to blend glue solution with solid content of 1-35%;
step three: preparing slurry: adding fibers into the glue solution, and blending into fiber slurry with the fiber content of 2-6%;
step four: and (3) suction filtration dehydration forming: feeding the slurry into a mold with a filter screen for vacuum filtration to obtain a wet fiber blank;
step five: mechanical extrusion dehydration: further removing moisture in the wet blank obtained by vacuum filtration by a filter pressing method to obtain a fiber wet blank;
step six: loading wet blanks into a car: placing the wet fiber blank obtained by vacuum filtration and extrusion on a shelf of a drying vehicle;
step seven: hydrothermal polymerization: the drying vehicle enters a hot drying tunnel furnace, the doors and windows of the tunnel furnace are sealed by heat-insulating grass curtains or cloth curtains and the like and then heated, and the wet blank is thermally steamed at high temperature and high humidity to polymerize gel;
step eight: and (3) drying: opening doors and windows of the tunnel furnace, drying the wet blank, and discharging the dry fiber blank after the fiber blank reaching the delivery standard reaches the delivery standard;
step nine: trimming, packaging and warehousing: and (5) finishing, packaging and warehousing the dried blank.
As a preferred technical solution of the present invention, the inorganic binder used for bonding and forming in the first step includes one or more of silica sol, aluminum sol, zirconium sol, yttrium sol, titanium sol, silicate, and phosphate inorganic glue.
In a preferred embodiment of the present invention, the step of using a polymeric gel accelerator for the inorganic binder includes one or more of organic acid, inorganic acid, silicate, phosphate, carbonate, sulfate, metal oxide and metal hydroxide.
As a preferable technical solution of the present invention, the hydrothermal polymerization step in the seventh step includes a step of performing hydrothermal treatment on the molded wet fiber blank using a special steam chamber, a closed drying tunnel, a microwave oven, a microwave tunnel, or wrapping and heating with a plastic film to polymerize and gel.
As a preferable technical scheme of the invention, the step eight drying method comprises microwave drying and flame drying.
As a preferable embodiment of the present invention, the refractory inorganic binder includes alumina silicate fibers, alumina fibers, basalt fibers, glass fibers, zirconium fibers, and sepiolite fibers.
As a preferred technical scheme of the invention, the ratio of the refractory inorganic adhesive to the polymerization gelling curing agent in the first step is 100: 1-80.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method for preparing a non-flexible fiber product with uniform surface and inside texture, no smoke generated in high temperature or flame, no blackening of mechanical strength and no reduction of mechanical strength, which aims to overcome the problems that the prior non-flexible refractory fiber product has different hardness on the outside and soft on the inside and has uneven texture or smoke generation and carbonization and blackening of mechanical strength in a high temperature environment, saves water and avoids pollution of waste water to the environment.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1
The invention provides a method for manufacturing a non-flexible refractory fiber product, which comprises the following steps:
the method comprises the following steps: preparing an adhesive: adding a polymerization gelling curing agent into a refractory inorganic adhesive to blend the adhesive for fibers;
step two: preparing glue solution: adding tap water into the fiber adhesive to blend glue solution with solid content of 1-35%;
step three: preparing slurry: adding fibers into the glue solution, and blending into fiber slurry with the fiber content of 2-6%;
step four: and (3) suction filtration dehydration forming: feeding the slurry into a mold with a filter screen for vacuum filtration to obtain a wet fiber blank;
step five: mechanical extrusion dehydration: further removing moisture in the wet blank obtained by vacuum filtration by a filter pressing method to obtain a fiber wet blank;
step six: loading wet blanks into a car: placing the wet fiber blank obtained by vacuum filtration and extrusion on a shelf of a drying vehicle;
step seven: hydrothermal polymerization: the drying vehicle enters a hot drying tunnel furnace, the doors and windows of the tunnel furnace are sealed by heat-insulating grass curtains or cloth curtains and the like and then heated, and the wet blank is thermally steamed at high temperature and high humidity to polymerize gel;
step eight: and (3) drying: opening doors and windows of the tunnel furnace, drying the wet blank, and discharging the dry fiber blank after the fiber blank reaching the delivery standard reaches the delivery standard;
step nine: trimming, packaging and warehousing: and (5) finishing, packaging and warehousing the dried blank.
Wherein the inorganic adhesive used for bonding and forming in the first step comprises one or more of silica sol, alumina sol, zirconium sol, yttrium sol, titanium sol, silicate and phosphate inorganic adhesive, the polymerization gel promoter used for one inorganic adhesive in the first step comprises one or more of organic acid, inorganic acid, silicate, phosphate, carbonate, sulfate, metal oxide and metal hydroxide, the hydrothermal polymerization process in the seventh step comprises the process of carrying out hydrothermal treatment on a formed wet fiber blank by using a special steam chamber, a closed drying tunnel, a microwave oven, a microwave tunnel or wrapping and heating by using a plastic film to generate polymerization gel, the drying method in the eighth step comprises microwave drying and flame drying, wherein the refractory inorganic adhesive comprises aluminum silicate fibers, alumina fibers, basalt fibers, glass fibers, alumina fibers, Zirconium fiber and sepiolite fiber, wherein the ratio of the refractory inorganic adhesive to the polymeric gelling curing agent in the first step is 100: 1-80.
Specifically, the inorganic adhesive used by the fiber product is added with a polymerization gel accelerant, a hydrothermal polymerization process specially used for carrying out hydrothermal polymerization gel reaction is added in the production flow, and a wet fiber blank subjected to hydrothermal polymerization can be rapidly dried by microwave or flame and other high-temperature heating, and the first step is as follows: preparing an adhesive: adding a polymerization gelling curing agent into a refractory inorganic adhesive to blend the adhesive for fibers; step two: preparing glue solution: adding tap water into the fiber adhesive to blend glue solution with solid content of 1-35%; step three: preparing slurry: adding fibers into the glue solution, and blending into fiber slurry with the fiber content of 2-6%; step four: and (3) suction filtration dehydration forming: feeding the slurry into a mold with a filter screen for vacuum filtration to obtain a wet fiber blank; step five: mechanical extrusion dehydration: further removing moisture in the wet blank obtained by vacuum filtration by a filter pressing method to obtain a fiber wet blank; step six: loading wet blanks into a car: placing the wet fiber blank obtained by vacuum filtration and extrusion on a shelf of a drying vehicle; step seven: hydrothermal polymerization: the drying vehicle enters a hot drying tunnel furnace, the doors and windows of the tunnel furnace are sealed by heat-insulating grass curtains or cloth curtains and the like and then heated, and the wet blank is thermally steamed at high temperature and high humidity to polymerize gel; step eight: and (3) drying: opening doors and windows of the tunnel furnace, drying the wet blank, and discharging the dry fiber blank after the fiber blank reaching the delivery standard reaches the delivery standard; step nine: trimming, packaging and warehousing: trimming, packaging and warehousing the dried blank;
the inorganic binder for bonding formation includes, but is not limited to, one or more of silica sol, aluminum sol, zirconium sol, yttrium sol, titanium sol, silicate, phosphate and other inorganic glues.
The polymerization gel accelerator used in the inorganic binder used herein includes, but is not limited to, organic acids, inorganic acids, silicates, phosphates, carbonates, sulfates, metal oxides, metal hydroxides, and the like which allow the inorganic sol to undergo polymerization gel.
The hydrothermal polymerization process in the production flow includes, but is not limited to, a process of performing hydrothermal treatment on the molded fiber wet blank by using a special steam chamber or a steam room or a closed drying tunnel, or a microwave oven microwave tunnel, or wrapping and heating by using a plastic film, and the like to generate polymerized gel.
Wherein the high temperature rapid drying method includes but is not limited to microwave drying, flame drying, etc.
Wherein the refractory fibers include, but are not limited to, aluminum silicate fibers, alumina fibers, basalt fibers, glass fibers, zirconium fibers, sepiolite fibers, various metal fibers, and the like.
Calculated by solid content, the ratio of the inorganic binder to the polymeric gel accelerator is 100: 1-80.
The invention provides a method for preparing a non-flexible fiber product with uniform surface and inside texture, no smoke generated in high temperature or flame, no blackening of mechanical strength and no reduction of mechanical strength, which aims to overcome the problems that the prior non-flexible refractory fiber product has different hardness on the outside and soft on the inside and has uneven texture or smoke generation and carbonization and blackening of mechanical strength in a high temperature environment, saves water and avoids pollution of waste water to the environment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A method for manufacturing a non-flexible refractory fiber product is characterized by comprising the following steps:
the method comprises the following steps: preparing an adhesive: adding a polymerization gelling curing agent into a refractory inorganic adhesive to blend the adhesive for fibers;
step two: preparing glue solution: adding tap water into the fiber adhesive to blend glue solution with solid content of 1-35%;
step three: preparing slurry: adding fibers into the glue solution, and blending into fiber slurry with the fiber content of 2-6%;
step four: and (3) suction filtration dehydration forming: feeding the slurry into a mold with a filter screen for vacuum filtration to obtain a wet fiber blank;
step five: mechanical extrusion dehydration: further removing moisture in the wet blank obtained by vacuum filtration by a filter pressing method to obtain a fiber wet blank;
step six: loading wet blanks into a car: placing the wet fiber blank obtained by vacuum filtration and extrusion on a shelf of a drying vehicle;
step seven: hydrothermal polymerization: the drying vehicle enters a hot drying tunnel furnace, the doors and windows of the tunnel furnace are sealed by heat-insulating grass curtains or cloth curtains and the like and then heated, and the wet blank is thermally steamed at high temperature and high humidity to polymerize gel;
step eight: and (3) drying: opening doors and windows of the tunnel furnace, drying the wet blank, and discharging the dry fiber blank after the fiber blank reaching the delivery standard reaches the delivery standard;
step nine: trimming, packaging and warehousing: and (5) finishing, packaging and warehousing the dried blank.
2. The method according to claim 1, wherein the inorganic binder used in the first step for bonding and forming comprises one or more of silica sol, alumina sol, zirconium sol, yttrium sol, titanium sol, silicate, and phosphate inorganic glue.
3. The method of claim 1, wherein the step of applying a polymeric gel promoter to the inorganic binder includes one or more of organic acids, inorganic acids, silicates, phosphates, carbonates, sulfates, metal oxides, and metal hydroxides.
4. The method of claim 1, wherein the step seven of hydrothermal polymerization comprises a step of subjecting the wet fiber preform to hydrothermal treatment using a special steam chamber, closed drying tunnel, microwave oven, microwave tunnel, or wrapping and heating with a plastic film to generate polymerized gel.
5. The method of claim 1, wherein the step eight drying method comprises microwave drying and flame drying.
6. The method of claim 5, wherein the refractory inorganic binder comprises alumina silicate fibers, alumina fibers, basalt fibers, glass fibers, zirconium fibers, and sepiolite fibers.
7. The method of claim 1, wherein the ratio of the refractory inorganic binder to the polymeric gelling curing agent in the first step is 100: 1-80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358841.5A CN111410544A (en) | 2020-04-29 | 2020-04-29 | Method for manufacturing non-flexible refractory fiber product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358841.5A CN111410544A (en) | 2020-04-29 | 2020-04-29 | Method for manufacturing non-flexible refractory fiber product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111410544A true CN111410544A (en) | 2020-07-14 |
Family
ID=71490339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010358841.5A Pending CN111410544A (en) | 2020-04-29 | 2020-04-29 | Method for manufacturing non-flexible refractory fiber product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111410544A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553783A (en) * | 2020-11-27 | 2021-03-26 | 山东鲁阳节能材料股份有限公司 | Toughening type inorganic fiber felt and preparation method thereof |
| CN112624776A (en) * | 2020-12-24 | 2021-04-09 | 山东鲁阳浩特高技术纤维有限公司 | Zirconia-alumina fiber composite wet module and preparation method thereof |
| CN115157516A (en) * | 2022-09-06 | 2022-10-11 | 湖南搏盛天弘新材料技术有限公司 | Preparation method of novel carbon fiber insulation board |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954555A (en) * | 1972-09-29 | 1976-05-04 | National Gypsum Company | Fiber reinforced plastic articles and method of preparation |
| CN1385388A (en) * | 2002-06-06 | 2002-12-18 | 山东鲁阳股份有限公司 | Ceramic fibre thermal-insulating boara and making method thereof |
| US20120193828A1 (en) * | 2011-02-02 | 2012-08-02 | Jishuang Chen | Wet process of fabricating fiber wall panels |
| CN103524140A (en) * | 2013-09-23 | 2014-01-22 | 天津大学 | Oxide ceramic fiber board |
| CN104086201A (en) * | 2014-07-22 | 2014-10-08 | 南京理工宇龙新材料科技有限公司 | High-purity alumina fiber and preparation method thereof |
| CN106927835A (en) * | 2015-12-30 | 2017-07-07 | 山东大学 | The zirconium oxide fiber board of high intensity superhigh temperature resistant or the preparation method of profiled piece |
| CN108046739A (en) * | 2017-12-06 | 2018-05-18 | 航天材料及工艺研究所 | A kind of fiber preform enhancing aerogel heat-proof composite material and preparation method thereof |
| CN109320274A (en) * | 2018-09-13 | 2019-02-12 | 南京理工宇龙新材料科技股份有限公司 | A kind of improved zirconium oxide fiber board and preparation method thereof |
| CN109650842A (en) * | 2018-12-25 | 2019-04-19 | 山东鲁阳节能材料股份有限公司 | A kind of preparation method of inorganic combination ceramic fibre material |
| CN110170611A (en) * | 2019-04-03 | 2019-08-27 | 张储 | A kind of casting fibrous type casing forming technique |
-
2020
- 2020-04-29 CN CN202010358841.5A patent/CN111410544A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954555A (en) * | 1972-09-29 | 1976-05-04 | National Gypsum Company | Fiber reinforced plastic articles and method of preparation |
| CN1385388A (en) * | 2002-06-06 | 2002-12-18 | 山东鲁阳股份有限公司 | Ceramic fibre thermal-insulating boara and making method thereof |
| US20120193828A1 (en) * | 2011-02-02 | 2012-08-02 | Jishuang Chen | Wet process of fabricating fiber wall panels |
| CN103524140A (en) * | 2013-09-23 | 2014-01-22 | 天津大学 | Oxide ceramic fiber board |
| CN104086201A (en) * | 2014-07-22 | 2014-10-08 | 南京理工宇龙新材料科技有限公司 | High-purity alumina fiber and preparation method thereof |
| CN106927835A (en) * | 2015-12-30 | 2017-07-07 | 山东大学 | The zirconium oxide fiber board of high intensity superhigh temperature resistant or the preparation method of profiled piece |
| CN108046739A (en) * | 2017-12-06 | 2018-05-18 | 航天材料及工艺研究所 | A kind of fiber preform enhancing aerogel heat-proof composite material and preparation method thereof |
| CN109320274A (en) * | 2018-09-13 | 2019-02-12 | 南京理工宇龙新材料科技股份有限公司 | A kind of improved zirconium oxide fiber board and preparation method thereof |
| CN109650842A (en) * | 2018-12-25 | 2019-04-19 | 山东鲁阳节能材料股份有限公司 | A kind of preparation method of inorganic combination ceramic fibre material |
| CN110170611A (en) * | 2019-04-03 | 2019-08-27 | 张储 | A kind of casting fibrous type casing forming technique |
Non-Patent Citations (3)
| Title |
|---|
| E.LIDEN ET.AL: "Silica sols as refractory fibre binders", 《JOURNAL OF THE EUROPEAN CERAMIC SOCIETY》 * |
| 刘景林: "镁质结合剂结合的耐火纤维材料的开发与研究", 《耐火与石灰》 * |
| 阚红元: "工业炉用高强度陶瓷纤维板", 《工业炉》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553783A (en) * | 2020-11-27 | 2021-03-26 | 山东鲁阳节能材料股份有限公司 | Toughening type inorganic fiber felt and preparation method thereof |
| CN112553783B (en) * | 2020-11-27 | 2022-03-18 | 山东鲁阳节能材料股份有限公司 | Toughening type inorganic fiber felt and preparation method thereof |
| CN112624776A (en) * | 2020-12-24 | 2021-04-09 | 山东鲁阳浩特高技术纤维有限公司 | Zirconia-alumina fiber composite wet module and preparation method thereof |
| CN115157516A (en) * | 2022-09-06 | 2022-10-11 | 湖南搏盛天弘新材料技术有限公司 | Preparation method of novel carbon fiber insulation board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111410544A (en) | Method for manufacturing non-flexible refractory fiber product | |
| CN101638324B (en) | Light porous heat-insulating refractory material and preparation method and applications thereof | |
| CN111589835B (en) | Process for recycling and reproducing waste heat-preservation rock wool or aluminum silicate heat-preservation cotton | |
| CN100439274C (en) | Ceramic fiber back lining board | |
| CN107747862A (en) | A kind of ceramic drying kiln | |
| CN109366656A (en) | A kind of control method of unilateral side compressed wood density peak type form | |
| CN104944998B (en) | Method for enhancing strength of carbon/carbon composite material | |
| CN106003321B (en) | Suitable for log or the heat modification method of thick square bar | |
| KR20130067624A (en) | Porous lightweight ceramics and manufacturing method of the same | |
| CN113800887B (en) | Preparation method of energy-saving and environment-friendly ceramic marmite | |
| CN113845365B (en) | High-oxidation-resistance silicon carbide zirconium brick for solid waste combustion furnace and preparation method thereof | |
| GB2093012A (en) | Refractory or heat-resistant composite articles | |
| KR102131064B1 (en) | Manufacturing Method of Interior Materials and Interior Materials Thereby | |
| CN112794725A (en) | Preparation method of alumina fiber lining material for industrial microwave kiln | |
| NO820444L (en) | BENEFIT OF HIGH MECHANICAL STABILITY AT HIGH TEMPERATURES AND ITS MANUFACTURING AND USE | |
| CN112710153A (en) | Preparation method of large-size machinable refractory heat-insulating plate | |
| CN105133129A (en) | No-pollution glass fiber technology | |
| CN112250336B (en) | Waste rock wool regeneration slag powder and preparation method thereof | |
| CN100339337C (en) | Preparation method of high-strength high-alumina refractory ball for smelt | |
| CN105753461B (en) | Spontaneous glaze ceramics once-firing method | |
| CN104529487A (en) | Ultrahigh-temperature magnesium oxide fibre product and preparation method thereof | |
| CN105737527B (en) | A kind of pyrophillite drying means | |
| JP4701718B2 (en) | Coke oven carbonization chamber repair material | |
| CN116536953A (en) | Ceramic fiber pretreatment and pad preparation method | |
| CN109630810B (en) | Wood fiber vacuum insulation panel and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200714 |