CN106747498A - A kind of preparation method of the refractory composite comprising stainless steel - Google Patents
A kind of preparation method of the refractory composite comprising stainless steel Download PDFInfo
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- CN106747498A CN106747498A CN201611084216.6A CN201611084216A CN106747498A CN 106747498 A CN106747498 A CN 106747498A CN 201611084216 A CN201611084216 A CN 201611084216A CN 106747498 A CN106747498 A CN 106747498A
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- stainless steel
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
- F27D1/06—Composite bricks or blocks, e.g. panels, modules
- F27D1/063—Individual composite bricks or blocks
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of preparation method of the refractory composite comprising stainless steel, the body supports body for stainless steel square hole pattern and stainless steel fibre felt being stacked and forming fire resisting wall brick is used in technical scheme, then prepare the good slurry of fire resistance to be poured into a mould, be then pressed into type, drying.Improved for traditional refractory material in the present invention, stainless steel material is incorporated into the sintering procedure of refractory material, the refractory composite prepared is set to possess the high intensity and shock resistance of stainless steel, coordinate the fire resisting slurry of special proportioning to be poured into a mould, suppressed, dried, prepare that a kind of intensity is high, thermal shock resistance is good, after heating dimensionally stable heat-resist refractory composite.
Description
Technical field
The invention belongs to field of compound material, and in particular to a kind of preparation method of the composite for including stainless steel.
Background technology
Many places are required for using the refractory material of high intensity, high tenacity in Chemical Experiment in Modern Times room, such as in roaster
Inside need to be equipped with solid form fire resisting isolated material, lay under high-temperature reaction equipment fire resisting separation layer, in pyroreaction
Thermal protection layer is built around kettle for Protection personnel etc..The heat-barrier material that uses in the lab in the prior art with
The material sold on the market is more similar to, the material such as clay brick fired using cellulosic felt insulation or with refractory material more,
Still exist although material of the prior art can also play certain insulation effect, when being applied in laboratory a lot
Problem, subject matter is as follows：1st, the intensity of felt insulation or refractory clay brick is not high, and compression strength and rupture strength are poor,
Long-term use is not tolerated especially, is changed more frequent.Need to lay refractory brick on ground in some laboratories, then also need to
Instrument and equipment is placed on tile floor, being often accomplished by refractory brick there can be intensity higher；2nd, thermal shock resistance is low, i.e. resisting temperature
The ability drastically changed without being destroyed.These times in currently available technology are chatted and are often pressed into by inorganic mineral material
, thermal shock resistance is poor；3rd, reheat linear change is big, and after above-mentioned refractory material is heated to high temperature, its size is susceptible to can not
Inversion, especially felt insulation and clay brick, after the environment that high temperature-cooling rapidly changes is undergone for a long time, felt insulation and clay brick
Situations such as easily there is crushing, fragmentation, opening.The larger especially influence of reheat linear change is when application to refractory is in such as roaster etc.
Inside needs the place of heat-barrier material, be easily caused roaster internal capacity change so as to cause cannot to close such as fire door,
Heat-barrier material product produces the problems such as influenceing effect of heat insulation compared with big gap.
The content of the invention
Improved for traditional refractory material in the present invention, stainless steel material is incorporated into the firing of refractory material
During, the refractory composite prepared is possessed the high intensity and shock resistance of stainless steel, coordinate the fire resisting of special proportioning
Slurry is poured into a mould, suppressed, dried, and prepares that a kind of intensity is high, thermal shock resistance is good, dimensionally stable is heat-resist after heating
Refractory composite.
The technical problems to be solved by the invention are achieved by following steps：
A kind of preparation method of the refractory composite comprising stainless steel is provided in the present invention, is comprised the following steps：
Step one：By mass parts be the Ludox of 60-90, the potassium hydroxide of 10-25, the alumina silicate fibre of 25-45,10-20
Zirconium oxide micro mist mixes, and disperses 2-4 hours under the conditions of 1000-2500r/min after stirring, and the quality of wherein Ludox is dense
It is 50-55% to spend；
Step 2：Be the kaolin of 90-100 by mass parts, the aerosil of the titanium dioxide of 15-20,20-45 it is micro-
Powder, the guar gum of 10-20, the sodium sulfate of polyethenoxy ether of fatty alcohol mixing and stirring of 8-10；
Step 3：In 40-50 DEG C of water-bath, the mixture in step 2 is added in solution prepared by step one, in 250-
Mechanical agitation under the conditions of 500r/min, adds deionized water, until mixed slurry is 60-70S in shear rate-1When viscosity be
180-480mPa·s；
Step 4：Stainless steel square hole pattern and stainless steel fibre felt are stacked together, to stainless steel fibre felt surface casting step
Obtained mineral slurry in three, make slurry in stainless steel fibre felt surface uniform fold, and mineral slurry every square centimeter is poured
It is 0.6-1.2mL to measure；
Step 5：Base substrate is made to one layer of stainless steel square hole pattern is re-layed on the stainless steel fibre felt in step 4, in vacuum
It is 10-3-10-2Pa, temperature be 45-80 DEG C under the conditions of, to billet surface apply 0.8-4MPa pressure suppress 12-24 hours,
Dried 24-48 hours under the conditions of 180-220 DEG C, that is, obtain required fire resisting wall brick.
Used in technical scheme and stack to form fire resisting wall brick by stainless steel square hole pattern and stainless steel fibre felt
Body supports body, then prepares the good slurry of fire resistance and is poured into a mould, and is then pressed into type, drying.In the present invention, first will
Ludox, potassium hydroxide, alumina silicate, zirconium oxide micro mist fiber are made alkaline mixed solution, then by kaolin, titanium dioxide, two
Silica aerogel micro mist, guar gum, sodium sulfate of polyethenoxy ether of fatty alcohol mixing and stirring are made mineral intermixture, then
The above-mentioned mineral intermixture for preparing is added in alkaline mixed solution, the step in, mixing is slowly added while stirring
Thing, record shear rate is 60-70S-1When viscosity, finally can on a small quantity add deionized water to carry out last regulation, until mixed
It is 60-70S that slurry is closed in shear rate-1When viscosity be 180-480mPas, the viscosity scope is most appropriate in this programme
Slip casting viscosity, viscosity is too small, influences follow-up wall brick to be molded, and viscosity is excessive, and slurry is difficult to penetrate into stainless steel fibre felt
In.
The mass parts of raw material, Ludox, potassium hydroxide, alumina silicate in step one in further preferred slurry preparation process
Fiber, the mass parts of zirconium oxide are respectively 80-85,12-18,35-40,10-12.
Further preferred raw material, zirconium oxide powder size range is 30-60 μm, silica gas in step 2 in step one
Gel powder size range is 30-60 μm, and aerosil specific surface area is 300-450m2/ g, density is 58-62kg/
m3。
Further, in step 3 mixed slurry in 60-70S-1When viscosity for 325-460mPas it is optimal.
Further, stainless steel fibre felt surface area is 12-20cm in step 42.The surface area choosing of stainless steel fibre felt
Select relevant with molding effect, too small and mistake is mostly unfavorable for shaping.
Further, the number of plies of stainless steel fibre felt laying is 2-20 layers in step 4.The main work of stainless steel fibre felt
Be retain cast inorganic slurry, formed refractory material inner skeleton, stainless steel fibre felt laying the number of plies with actually make
It is required that it is relevant, selected by the thickness of required refractory material, cannot be normally only molded comprising one layer of stainless steel fibre felt,
Stainless steel fibre felt more than 20 layers is then easily caused during compacting and does not press tightly close, easy layering, and center portion cannot dry
It is dry.
Further, the number of plies of stainless steel square hole pattern is layer 2-4 in step 4.Stainless steel square hole pattern Main Function is support
The profile of fire resisting wall brick, is easy to be molded and suppresses, and its number of plies is also relevant with actually used requirement, typically can be according to required fire resisting
The hardness and impact resistance of material are selected, and the number of plies of stainless steel square hole pattern is more, its hardness and impact resistance are better, but
No more than 4 layers, the number of plies can excessively cause stainless steel material leakage protrusion in pressing process.
Further, the pressure suppressed in step 5 is 2.5-4MPa, and drying temperature is 210 DEG C in step 5.Because of the present invention
In refractory material in introduce stainless steel material, so the fire resisting in its pressing pressure and drying temperature and common prior art
Material is different, and the pressure that refractory brick is especially suppressed in the general inorganic material preparation process of pressure ratio is bigger.
The present invention has the advantages that：
1st, the invention provides a kind of preparation method of the new refractory material for including stainless steel material；
2nd, improved for traditional felt insulation and refractory clay brick in the present invention, stainless steel material is incorporated into fire resisting
In the sintering procedure of material, being laid out the refractory material prepared has fixed structure, and possess stainless steel high intensity and
Shock resistance.
3rd, by allocating the component of alkaline mixed solution liquid and inorganic mineral mixture and sticking in the fire resisting slurry in the present invention
Degree, make the refractory material resistance to elevated temperatures prepared it is good, meet high temperature after good stability of the dimension.
Specific embodiment
Present disclosure is conducted further description below by embodiment.
1st, the preparation of slurry is filled
Ludox, potassium hydroxide, alumina silicate, zirconium oxide micro mist fiber are mixed according to proportion by weight shown in following table, so
Disperse 2 hours under the conditions of 1800r/min afterwards.
By kaolin, titanium dioxide, aerosil micro mist, guar gum, sodium sulfate of polyethenoxy ether of fatty alcohol under
Proportion by weight is mixed shown in table, is stirred.
The material used in above-mentioned slurry preparation process is all commercially available prod, and the wherein mass concentration of Ludox is 53%, hydrogen
Potassium oxide, alumina silicate selection chemically pure reagent, zirconium oxide micro mist, kaolin, titanium dioxide select grain graininess in embodiment
Powder in 30-40 μ ms.The selection of aerosil powder size is 48 μm, aerosil specific surface area
It is 410m2/ g, density is 60kg/m3。
Hybrid modulation is carried out after alkaline mixed solution and mineral intermixture are prepared, alkaline mixed solution is found in practice
No. 3-7 processing characteristics when being used cooperatively with mineral intermixture is optimal, in the present embodiment using No. 6 alkaline mixed solutions proportionings and 5
The proportioning of number mineral intermixture.
In 45 DEG C of water-baths, No. 5 mineral intermixtures are added in No. 6 alkaline mixed solutions, the machine under the conditions of 450r/min
Tool is stirred, and mixture is slowly added while stirring, and record shear rate is 60-70S-1When viscosity, can finally add on a small quantity
Ionized water carries out last regulation, until mixed slurry is 70S in shear rate-1When viscosity be 395mPas, be obtained material
Slurry.
2nd, the preparation of refractory composite
1 layer of stainless steel square hole pattern and 4 layers of stainless steel fibre felt are stacked together, to the stainless steel fibre above-mentioned step of felt surface casting
Obtained mineral slurry in rapid, makes slurry in stainless steel fibre felt surface uniform fold, the cast of mineral slurry every square centimeter
It is 0.8mL to measure.
Base substrate is made to re-laying one layer of stainless steel square hole pattern on the stainless steel fibre felt in above-mentioned steps again, in vacuum
It is 10-3Pa, temperature are under the conditions of 65 DEG C, the pressure for applying 4MPa to billet surface is suppressed 24 hours, is dried under the conditions of 210 DEG C
46 hours, that is, obtain required fire resisting wall brick.The stainless steel fibre felt surface area selected in the present embodiment is 15cm2。
The refractory composite comprising stainless steel prepared in the present embodiment is suitably applied the roasting of chemical laboratory
Burn in stove, the refractory composite can tolerate up to 1600 DEG C of high temperature, possess high intensity and good shock resistance, especially meet
Good dimension stability after high temperature.
Scheme according to above-described embodiment can various changes can be made to adapt to the demand in laboratory to different fire resisting wall bricks,
The viscosity of mixed slurry can such as be increased to 420 more than mPas, increase the number of plies that stacks of stainless steel fibre felt, increase every square
Centimetre the slurry amount of pouring, the heat-resisting composite intensity being so made is bigger, and impact resistance is especially good, can be in experiment show window
In pile up and be fabricated to protective, for shielding destruction and injury that inflammable and explosive chemical reaction occurs caused by accident.
Finally it should be noted that above example is only used to illustrate the technical scheme of the embodiment of the present invention rather than it is entered
Row limitation, although being described in detail to the embodiment of the present invention with reference to preferred embodiment, one of ordinary skill in the art
It should be understood that the technical scheme of the embodiment of the present invention can still be modified or equivalent, and these are changed or wait
Amended technical scheme can not be also set to depart from the scope of embodiment of the present invention technical scheme with replacement.
Claims (10)
1. a kind of preparation method of the refractory composite comprising stainless steel, it is characterised in that comprise the following steps：
Step one：By mass parts be the Ludox of 60-90, the potassium hydroxide of 10-25, the alumina silicate fibre of 25-45,10-20
Zirconium oxide micro mist mixes, and disperses 2-4 hours under the conditions of 1000-2500r/min after stirring, and the quality of wherein Ludox is dense
It is 50-55% to spend；
Step 2：Be the kaolin of 90-100 by mass parts, the aerosil of the titanium dioxide of 15-20,20-45 it is micro-
Powder, the guar gum of 10-20, the sodium sulfate of polyethenoxy ether of fatty alcohol mixing and stirring of 8-10；
Step 3：In 40-50 DEG C of water-bath, the mixture in step 2 is added in solution prepared by step one, in 250-
Mechanical agitation under the conditions of 500r/min, adds deionized water, until mixed slurry is 60-70S in shear rate-1When viscosity be
180-480mPa·s；
Step 4：Stainless steel square hole pattern and stainless steel fibre felt are stacked together, to stainless steel fibre felt surface casting step
Obtained mineral slurry in three, make slurry in stainless steel fibre felt surface uniform fold, and mineral slurry every square centimeter is poured
It is 0.6-1.2mL to measure；
Step 5：Base substrate is made to one layer of stainless steel square hole pattern is re-layed on the stainless steel fibre felt in step 4, in vacuum
It is 10-3-10-2Pa, temperature be 45-80 DEG C under the conditions of, to billet surface apply 0.8-4MPa pressure suppress 12-24 hours,
Dried 24-48 hours under the conditions of 180-220 DEG C, that is, obtain required fire resisting wall brick.
2. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：Silicon in step one
Colloidal sol, potassium hydroxide, alumina silicate fibre, the mass parts of zirconium oxide are respectively 80-85,12-18,35-40,10-12.
3. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：Oxygen in step one
It is 30-60 μm to change zirconium powder size range.
4. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：Two in step 2
Silica aerogel powder size range is 30-60 μm, and aerosil specific surface area is 300-450m2/ g, density is
58-62kg/m3。
5. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：Mixed in step 3
Slurry is closed in 60-70S-1When viscosity be 325-460mPas.
6. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：In step 4 not
Rust steel fibre felt surface area is 12-20cm2。
7. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：In step 4 not
The number of plies of rust steel fibre felt laying is 2-20 layers.
8. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：In step 4 not
The number of plies of rust steel square hole net is layer 2-4.
9. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：Pressed in step 5
The pressure of system is 2.5-4MPa.
10. the preparation method of the refractory composite of stainless steel is included as claimed in claim 1, it is characterised in that：Dried in step 5
Dry temperature is 210 DEG C.
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| CN201611084216.6A CN106747498A (en) | 2016-11-30 | 2016-11-30 | A kind of preparation method of the refractory composite comprising stainless steel |
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| CN201611084216.6A CN106747498A (en) | 2016-11-30 | 2016-11-30 | A kind of preparation method of the refractory composite comprising stainless steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511009A (en) * | 2019-08-23 | 2019-11-29 | 河南恒耐尔耐火材料有限公司 | A kind of high-strength heat-insulating fiber composite jetting material and preparation method thereof |
| CN117736004A (en) * | 2024-02-20 | 2024-03-22 | 宜兴市恒祥耐火材料有限公司 | Thermal shock resistant refractory casting material and preparation method thereof |
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| CN101531493A (en) * | 2009-04-09 | 2009-09-16 | 哈尔滨工业大学 | Preparation method of strengthened aluminosilicate polymer composite material of stainless steel fiber web |
| CN101628819A (en) * | 2008-07-18 | 2010-01-20 | 山东鲁阳股份有限公司 | Smoke-free and tasteless ceramic fiber board |
| CN103255888A (en) * | 2013-04-18 | 2013-08-21 | 深圳市爱思宝科技发展有限公司 | Full-body dry hanging plate and manufacturing method thereof |
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2016
- 2016-11-30 CN CN201611084216.6A patent/CN106747498A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628819A (en) * | 2008-07-18 | 2010-01-20 | 山东鲁阳股份有限公司 | Smoke-free and tasteless ceramic fiber board |
| CN101531493A (en) * | 2009-04-09 | 2009-09-16 | 哈尔滨工业大学 | Preparation method of strengthened aluminosilicate polymer composite material of stainless steel fiber web |
| CN103255888A (en) * | 2013-04-18 | 2013-08-21 | 深圳市爱思宝科技发展有限公司 | Full-body dry hanging plate and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511009A (en) * | 2019-08-23 | 2019-11-29 | 河南恒耐尔耐火材料有限公司 | A kind of high-strength heat-insulating fiber composite jetting material and preparation method thereof |
| CN117736004A (en) * | 2024-02-20 | 2024-03-22 | 宜兴市恒祥耐火材料有限公司 | Thermal shock resistant refractory casting material and preparation method thereof |
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Application publication date: 20170531 |