CN105236945B - A kind of high-strength temperature-resistant shake push pedal and preparation method thereof - Google Patents
A kind of high-strength temperature-resistant shake push pedal and preparation method thereof Download PDFInfo
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- CN105236945B CN105236945B CN201510690445.1A CN201510690445A CN105236945B CN 105236945 B CN105236945 B CN 105236945B CN 201510690445 A CN201510690445 A CN 201510690445A CN 105236945 B CN105236945 B CN 105236945B
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Abstract
The invention discloses a kind of high-strength temperature-resistant to shake push pedal, and its raw material includes following components by weight：3 20 30 parts of 0.5mm mullite particles, 15 20 parts of 1 0.5mm corundum in granules, 10 15 parts of 0.5 0.1mm quartz particles, 320 15 20 parts of mesh andalusite fine powders, 220 mesh mullite fine powder, 25 30 parts, 2 μm 8 12 parts of alumina powders, 5 10 parts of 320 mesh corundum fine powder, 5 15 parts of silicon powder, 5 10 parts of zircon, 0.5 2 parts of cerium oxide, 2 10 parts of aluminum fluoride, 5 10 parts of aluminium, 10 15 parts of silicon, 10 15 parts of white clay, 13 parts of additional bonding agent.The invention also discloses a kind of preparation method of high-strength temperature-resistant shake push pedal.Product resistance to heat shocks is good in the present invention, high mechanical strength, and preparation method is simple, is easy to practical operation.
Description
Technical field
The present invention relates to push pedal technical field, more particularly to a kind of high-strength temperature-resistant shake push pedal and preparation method thereof.
Background technology
As national environmental protection, energy saving policy are progressively deeply implemented, the pushed bat kiln of novel energy-saving environment-friendly arises at the historic moment, therewith
The kiln furniture material to match have developed rapidly.Product sinter during, it is necessary to the product that needs are sintered directly or indirectly
Be placed in kiln push pedal, the product being placed in push pedal is moved according to the technological requirement of product by propulsion system,
The sintering process of product, therefore one of the important component of push pedal as kiln, the fine or not direct shadow of its performance are completed in burner hearth
The service life of kiln is rung, if push pedal occurs being broken in use, deformed or phenomena such as chip off-falling, will occur to encircle kiln
The stuck passage of accident, i.e. push pedal, ledal-pushing machine push away it is motionless, thus caused consequence gently then stop kiln repairing, it is heavy then to tear open kiln handle, give
Heavy losses are caused using unit.Because the operating temperature of kiln is between 1100 DEG C -1450 DEG C, therefore to complete primary production
Sintering, kiln just needs to be subjected to a room temperature-high temperature-room temperature process with push pedal, so circulate, more frequently thermal shock,
Require kiln push pedal that there is excellent thermal shock resistance, along with push pedal bearing capacity is big, it is desirable to which push pedal has excellent machinery
Intensity, often the resistance to heat shocks of push pedal and intensity there is contradiction, preferably push away it is difficult to obtain two kinds of properties simultaneously in practice
Plate.
The content of the invention
A kind of high-strength temperature-resistant shake push pedal and preparation method thereof, product resistance to heat shocks is good, high mechanical strength, and preparation method letter
It is single, it is easy to practical operation.
A kind of high-strength temperature-resistant shake push pedal proposed by the present invention, its raw material include following components by weight：3-0.5mm does not come
Stone particle 20-30 parts, 1-0.5mm corundum in granules 15-20 parts, 0.5-0.1mm quartz particles 10-15 parts, 320 mesh andalusite fine powders
15-20 parts, 220 mesh mullite fine powder 25-30 parts, 2 μm of alumina powder 8-12 parts, 320 mesh corundum fine powder 5-10 parts, silicon powder
5-15 parts, zircon 5-10 parts, cerium oxide 0.5-2 parts, aluminum fluoride 2-10 parts, aluminium 5-10 parts, silicon 10-15 parts, white clay 10-15
Part, additional bonding agent 1-3 parts.
Preferably, its raw material includes following components by weight：3-0.5mm mullite particle 25-27 parts, 1-0.5mm are firm
Beautiful particle 17-19 parts, 0.5-0.1mm quartz particles 12-13.5 parts, 320 mesh andalusite fine powder 17.5-18 parts, 220 mesh mullites
Fine powder 26-28 parts, 2 μm of alumina powder 10-12 parts, 320 mesh corundum fine powder 7-8.5 parts, silicon powder 8-11 parts, zircon 7.6-
8.5 parts, it is cerium oxide 1.2-1.6 parts, aluminum fluoride 5.6-6.3 parts, aluminium 6-8.5 parts, silicon 11-13 parts, white clay 12-13.5 parts, additional
Bonding agent 1.9-2.4 parts.
Preferably, its raw material includes following components by weight：26.5 parts of 3-0.5mm mullite particles, 1-0.5mm corundum
18 parts of particle, 13 parts of 0.5-0.1mm quartz particles, 320 18 parts of mesh andalusite fine powders, 220 mesh mullite fine powder, 27 parts, 2 μm oxygen
Change 11 parts of aluminium micro mist, 8 parts of 320 mesh corundum fine powder, 10 parts of silicon powder, 8 parts of zircon, 1.5 parts of cerium oxide, 6 parts of aluminum fluoride, aluminium
7.5 parts, 12.5 parts of silicon, 12.5 parts of white clay, 2.2 parts of additional bonding agent.
Preferably, the silicon powder is super-fine silicon micro-powder, and the granularity of the super-fine silicon micro-powder is 0.5 micron.
Preferably, the cerium oxide is nano-cerium oxide, and the average grain diameter of the nano-cerium oxide is 5-20nm.
Preferably, the additional bonding agent be sodium carboxymethylcellulose, hydroxyethyl cellulose, polyvinyl alcohol, maltodextrin,
One or more kinds of mixtures in yellow starch gum.
Preferably, the mullite particle be electrofused mullite particle, fused mullite particle be 1-4 by weight:2-6
Mixture.
Preferably, the corundum in granules is one or more kinds of mixing in plate diamond spar, column corundum, granular corundum
Thing.
Preferably, in the andalusite fine powder, the mass fraction of aluminum oxide is 50-65%, the mass fraction of silica
For 33-45%.
Invention additionally discloses a kind of high-strength temperature-resistant shake push pedal preparation method, comprise the following steps：
Raw material is put into by weight in batch mixer and be well mixed, 30-40h is stood under air-tight state, it is single heavy by biscuit
Amount inserts die for molding after weighing, briquetting pressure 300-340MPa, spontaneously dry 4-6 days, is sent into electrical drying device and exists
260-300 DEG C of dry 40-60h, 10-14h is fired in 1450 DEG C of temperature, obtain high-strength temperature-resistant shake push pedal.
In the present invention, using 3-0.5mm mullite particles, 1-0.5mm corundum in granules, 0.5-0.1mm quartz particles as aggregate,
Using 320 mesh andalusite fine powders, 220 mesh mullite fine powders, 2 μm of alumina powders, 320 mesh corundum fine powders, silicon powder as powder, with
White clay, additional bonding agent are bonding agent, pass through high-temperature firing as additive using zircon, cerium oxide, aluminum fluoride, aluminium, silicon, are utilized
Microcrack evolution equation mechanism and fabricated in situ mullite have adjusted the contradiction between push pedal thermal shock resistance and intensity well, synthesis
High-strength temperature-resistant shakes push pedal.As a result show：By rationally controlling each content of material of 1-0.5mm corundum in granules and other to match, can have
Effect offsets product high-temperature expansion, and the zircon of addition is in system after high temperature sintering, it may occur that decomposes and produces ZrO2Aggregation
And mullite, ZrO therein2It is evenly distributed in the base, m-ZrO can occurs in follow-up sintering process2Mutually become t-ZrO2
The transition process of phase, so as to introduce negative expansion mechanism, make volume contraction, macroscopically counteract the heating expansion process of push pedal,
There is synergy after coordinating with 1-0.5mm corundum in granules and 320 mesh corundum fine powders, improve the thermal shock resistance of push pedal, in addition,
Caused ZrO2Can Dispersed precipitate in mullite network structure, form a kind of reinforced structure, improve the thermal shock resistance of push pedal
And intensity；320 mesh andalusite fine powder pyrolytics produce mullite, so as to form mullite network structure in the structure and be one
The irreversible crystal transformation of kind, has high chemical stability and extremely strong resistance to chemical corrosion, because its volume is swollen after its conversion
It is swollen small, after coordinating with 1-0.5mm corundum in granules, 320 mesh corundum fine powders and zircon, it can further reduce push pedal volume contraction and show
As significantly extending push pedal service life；The aluminum fluoride of addition can resist in product situ mullite synthesizing whisker, toughness reinforcing, product
Thermal shock resistance is fabulous, with silicon powder act synergistically, silicon powder can acceleration of sintering, product shock resistance further enhances, with zircon, oxygen
Change cerium effect, product apparent porosity is big, rupture strength conservation rate pole after product cold crushing strength, strength at normal temperature and thermal shock
Good, product strength and thermal shock resistance further enhance；Add metal Al and simple substance Si, Al, Si in-situ oxidation generation oxide are filled out
Fill part holes, activity is big, easily with the substance reaction in matrix, is oxidized to mullite, and the mullite generated is column, shape
Into mutually interspersed, bridge joint and interconnection, the effect such as crack pinning, deflection is played, improves the intensity, toughness and anti-thermal shock of push pedal
Property；2 μm of alumina powders can reduce the generation temperature of mullite after adding, with the SiO to dissociate in system2Reaction generation is secondary not
Carry out stone, improve product service life；White clay, which adds latter aspect, can be used as adhesive, on the other hand can be with 2 μ in raw material
M alumina powders reaction generation mullite, so as to have the function that improvement mechanism.
Embodiment
Embodiment 1
A kind of high-strength temperature-resistant shakes push pedal, and its raw material includes following components by weight：21 parts of 3-0.5mm mullite particles,
20 parts of 1-0.5mm corundum in granules, 11 parts of 0.5-0.1mm quartz particles, 320 20 parts of mesh andalusite fine powders, 220 mesh mullite fine powders
25 parts, 2 μm of 12 parts of alumina powders, 5.2 parts of 320 mesh corundum fine powder, 15 parts of silicon powder, 5 parts of zircon, 2 parts of cerium oxide, fluorination
2 parts of aluminium, 9.5 parts of aluminium, 10 parts of silicon, 10 parts of white clay, 3 parts of additional bonding agent.
Embodiment 2
A kind of high-strength temperature-resistant shakes push pedal, and its raw material includes following components by weight：30 parts of 3-0.5mm mullite particles,
16 parts of 1-0.5mm corundum in granules, 15 parts of 0.5-0.1mm quartz particles, 320 15 parts of mesh andalusite fine powders, 220 mesh mullite fine powders
28 parts, 2 μm of 8 parts of alumina powders, 10 parts of 320 mesh corundum fine powder, 5 parts of silicon powder, 10 parts of zircon, 0.5 part of cerium oxide, fluorination
9.2 parts of aluminium, 5 parts of aluminium, 14 parts of silicon, 15 parts of white clay, 1 part of additional bonding agent.
Embodiment 3
A kind of high-strength temperature-resistant shakes push pedal, and its raw material includes following components by weight：3-0.5mm mullite particles 25.5
Part, 19 parts of 1-0.5mm plate diamond spars particle, 12 parts of 0.5-0.1mm quartz particles, 320 18 parts of mesh andalusite fine powders, 220 mesh are not
Come 26.5 parts, 2 μm 12 parts of alumina powders of stone fine powder, 7 parts of 320 mesh corundum fine powder, 11 parts of silicon powder, 7.6 parts of zircon, oxidation
1.56 parts of cerium, 5.6 parts of aluminum fluoride, 8.5 parts of aluminium, 11 parts of silicon, 12 parts of white clay, 2.4 parts of sodium carboxymethylcellulose；
The silicon powder is super-fine silicon micro-powder, and the granularity of the super-fine silicon micro-powder is 0.5 micron；
The cerium oxide is nano-cerium oxide, and the average grain diameter of the nano-cerium oxide is 5nm；
The mullite particle is electrofused mullite particle, fused mullite particle is 1 by weight:6 mixture；
In the andalusite fine powder, the mass fraction of aluminum oxide is 50%, and the mass fraction of silica is 45%；
The preparation method of above-mentioned high-strength temperature-resistant shake push pedal comprises the following steps：
Raw material is put into by weight in batch mixer and be well mixed, stood 30h under air-tight state, claim by the single weight of biscuit
Die for molding is inserted after weight, briquetting pressure 340MPa, is spontaneously dried 4 days, is sent into electrical drying device in 295 DEG C of dryings
40h, 11h is fired in 1450 DEG C of temperature, obtain high-strength temperature-resistant shake push pedal.
Embodiment 4
A kind of high-strength temperature-resistant shakes push pedal, and its raw material includes following components by weight：27 parts of 3-0.5mm mullite particles,
17 parts of 1-0.5mm corundum in granules, 13.5 parts of 0.5-0.1mm quartz particles, 320 17.5 parts of mesh andalusite fine powders, 220 mesh mullites
27.2 parts, 2 μm 10 parts of alumina powders of fine powder, 8.5 parts of 320 mesh corundum fine powder, 8.4 parts of silicon powder, 8.5 parts of zircon, oxidation
1.2 parts of cerium, 6.3 parts of aluminum fluoride, 6.1 parts of aluminium, 13 parts of silicon, 13.5 parts of white clay, 2 parts of additional bonding agent；
The silicon powder is super-fine silicon micro-powder, and the granularity of the super-fine silicon micro-powder is 0.5 micron；
The cerium oxide is nano-cerium oxide, and the average grain diameter of the nano-cerium oxide is 20nm；
The additional bonding agent be sodium carboxymethylcellulose, hydroxyethyl cellulose, polyvinyl alcohol by any weight than it is mixed
Compound；
The mullite particle is electrofused mullite particle, fused mullite particle is 2 by weight:1 mixture；
The corundum in granules be plate diamond spar, column corundum by any weight than mixture；
In the andalusite fine powder, the mass fraction of aluminum oxide is 65%, and the mass fraction of silica is 33%.
The preparation method of above-mentioned high-strength temperature-resistant shake push pedal comprises the following steps：
Raw material is put into by weight in batch mixer and be well mixed, stood 39h under air-tight state, claim by the single weight of biscuit
Die for molding is inserted after weight, briquetting pressure 300MPa, is spontaneously dried 6 days, is sent into electrical drying device in 260 DEG C of dryings
59h, 14h is fired in 1450 DEG C of temperature, obtain high-strength temperature-resistant shake push pedal.
Embodiment 5
A kind of high-strength temperature-resistant shakes push pedal, and its raw material includes following components by weight：3-0.5mm mullite particles 26.5
Part, 18 parts of 1-0.5mm corundum in granules, 13 parts of 0.5-0.1mm quartz particles, 320 18 parts of mesh andalusite fine powders, 220 mesh mullites
27 parts, 2 μm 11 parts of alumina powders of fine powder, 8 parts of 320 mesh corundum fine powder, 10 parts of silicon powder, 8 parts of zircon, 1.5 parts of cerium oxide,
6 parts of aluminum fluoride, 7.5 parts of aluminium, 12.5 parts of silicon, 12.5 parts of white clay, 2.2 parts of additional bonding agent.
The silicon powder is super-fine silicon micro-powder, and the granularity of the super-fine silicon micro-powder is 0.5 micron；
The cerium oxide is nano-cerium oxide, and the average grain diameter of the nano-cerium oxide is 15nm；
The additional bonding agent is sodium carboxymethylcellulose, hydroxyethyl cellulose, polyvinyl alcohol, maltodextrin, yellow starch gum
It is 1 by weight:4:3:4:2 mixture；
The mullite particle is electrofused mullite particle, fused mullite particle is 1 by weight:2 mixture；
The corundum in granules be plate diamond spar, column corundum, granular corundum by any weight than mixture；
In the andalusite fine powder, the mass fraction of aluminum oxide is 55%, and the mass fraction of silica is 41%.
The preparation method of above-mentioned high-strength temperature-resistant shake push pedal comprises the following steps：
Raw material is put into by weight in batch mixer and be well mixed, stood 36h under air-tight state, claim by the single weight of biscuit
Die for molding is inserted after weight, briquetting pressure 325MPa, is spontaneously dried 5 days, is sent into electrical drying device in 285 DEG C of dryings
55h, 12h is fired in 1450 DEG C of temperature, obtain high-strength temperature-resistant shake push pedal.
Performance detection is carried out to high-strength temperature-resistant manufactured in the present embodiment shake push pedal, its result is as shown in the table：
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of high-strength temperature-resistant shakes push pedal, it is characterised in that its raw material includes following components by weight：3-0.5mm mullite
Particle 20-30 parts, 1-0.5mm corundum in granules 15-20 parts, 0.5-0.1mm quartz particles 10-15 parts, 320 mesh andalusite fine powders
15-20 parts, 220 mesh mullite fine powder 25-30 parts, 2 μm of alumina powder 8-12 parts, 320 mesh corundum fine powder 5-10 parts, silicon powder
5-15 parts, zircon 5-10 parts, cerium oxide 0.5-2 parts, aluminum fluoride 2-10 parts, aluminium 5-10 parts, silicon 10-15 parts, white clay 10-15
Part, additional bonding agent 1-3 parts；
Wherein, the additional bonding agent is sodium carboxymethylcellulose, hydroxyethyl cellulose, polyvinyl alcohol, maltodextrin, yellow starch gum
In one or more kinds of mixtures.
2. high-strength temperature-resistant shake push pedal according to claim 1, it is characterised in that its raw material includes following components by weight：
3-0.5mm mullite particle 25-27 parts, 1-0.5mm corundum in granules 17-19 parts, 0.5-0.1mm quartz particles 12-13.5 parts,
320 mesh andalusite fine powder 17.5-18 parts, 220 mesh mullite fine powder 26-28 parts, 2 μm of alumina powder 10-12 parts, 320 mesh are firm
Beautiful fine powder 7-8.5 parts, silicon powder 8-11 parts, zircon 7.6-8.5 parts, cerium oxide 1.2-1.6 parts, aluminum fluoride 5.6-6.3 parts, aluminium
6-8.5 parts, silicon 11-13 parts, white clay 12-13.5 parts, additional bonding agent 1.9-2.4 parts.
3. high-strength temperature-resistant according to claim 1 or claim 2 shakes push pedal, it is characterised in that its raw material includes with the following group by weight
Point：26.5 parts of 3-0.5mm mullite particles, 18 parts of 1-0.5mm corundum in granules, 13 parts of 0.5-0.1mm quartz particles, 320 mesh are red
18 parts of pillar fine powder, 220 mesh mullite fine powder, 27 parts, 2 μm 11 parts of alumina powders, 8 parts of 320 mesh corundum fine powder, silicon powder 10
Part, 8 parts of zircon, 1.5 parts of cerium oxide, 6 parts of aluminum fluoride, 7.5 parts of aluminium, 12.5 parts of silicon, 12.5 parts of white clay, additional bonding agent 2.2
Part.
4. high-strength temperature-resistant according to claim 1 or claim 2 shakes push pedal, it is characterised in that the silicon powder is super-fine silicon micro-powder, institute
The granularity for stating super-fine silicon micro-powder is 0.5 micron.
5. high-strength temperature-resistant according to claim 1 or claim 2 shakes push pedal, it is characterised in that the cerium oxide is nano-cerium oxide, institute
The average grain diameter for stating nano-cerium oxide is 5-20nm.
6. high-strength temperature-resistant according to claim 1 or claim 2 shakes push pedal, it is characterised in that the mullite particle is that electric smelting does not come
Stone particle, fused mullite particle are by weight 1-4:2-6 mixture.
7. high-strength temperature-resistant according to claim 1 or claim 2 shakes push pedal, it is characterised in that the corundum in granules is plate diamond spar, post
One or more kinds of mixtures in shape corundum, granular corundum.
8. high-strength temperature-resistant according to claim 1 or claim 2 shakes push pedal, it is characterised in that in the andalusite fine powder, aluminum oxide
Mass fraction is 50-65%, and the mass fraction of silica is 33-45%.
A kind of 9. preparation method of the shake of the high-strength temperature-resistant according to any one of claim 1-8 push pedal, it is characterised in that including
Following steps：Raw material is put into by weight in batch mixer and be well mixed, 30-40h is stood under air-tight state, it is single heavy by biscuit
Amount inserts die for molding after weighing, briquetting pressure 300-340MPa, spontaneously dry 4-6 days, is sent into electrical drying device and exists
260-300 DEG C of dry 40-60h, 10-14h is fired in 1450 DEG C of temperature, obtain high-strength temperature-resistant shake push pedal.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106278309B (en) * | 2016-08-06 | 2019-03-26 | 山东铭特陶瓷材料有限公司 | A kind of preparation method of wear-resistant ceramic kick back |
| CN108018585A (en) * | 2018-01-09 | 2018-05-11 | 范龙飞 | A kind of metal texture plate electroforming mould and method |
| CN112409000A (en) * | 2020-11-24 | 2021-02-26 | 湖南仁海科技材料发展有限公司 | Mullite push plate for ceramic metallization furnace and preparation method thereof |
| CN113480296B (en) * | 2021-08-27 | 2023-03-03 | 郑州中本耐火科技股份有限公司 | Modified refractory brick with high thermal shock stability |
| CN114368965A (en) * | 2022-01-21 | 2022-04-19 | 义马瑞辉新材料有限公司 | Preparation method of two-dimensional homogenized mullite corundum high-temperature material |
| CN115536406A (en) * | 2022-09-02 | 2022-12-30 | 洛阳欧斯特新材料有限公司 | Sagger for calcining negative electrode material |
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| CN1669980A (en) * | 2005-03-14 | 2005-09-21 | 浙江大学 | Preparation method of corundum-mullite composite ceramic push plate |
| CN101830717A (en) * | 2010-05-11 | 2010-09-15 | 浙江大学 | Zirconium sol reinforced corundum-mullite product and production method thereof |
| CN102674861A (en) * | 2012-05-24 | 2012-09-19 | 洛阳理工学院 | Refractory castable containing viscoplasticity phase and preparation method thereof |
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|---|---|---|---|---|
| CN1669980A (en) * | 2005-03-14 | 2005-09-21 | 浙江大学 | Preparation method of corundum-mullite composite ceramic push plate |
| CN101830717A (en) * | 2010-05-11 | 2010-09-15 | 浙江大学 | Zirconium sol reinforced corundum-mullite product and production method thereof |
| CN102674861A (en) * | 2012-05-24 | 2012-09-19 | 洛阳理工学院 | Refractory castable containing viscoplasticity phase and preparation method thereof |
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