CN103640284B - A kind of infra-red radiation strengthens composite ceramic fiber board and preparation method - Google Patents
A kind of infra-red radiation strengthens composite ceramic fiber board and preparation method Download PDFInfo
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Abstract
The invention discloses a kind of infra-red radiation and strengthen composite ceramic fiber board, described composite ceramic fiber board is composited by the fine flaggy of the aluminium base pottery of silicic acid and high IR emissivity layer, described high IR emissivity layer thickness is 0.1-2mm, and described high IR emissivity layer surface has the projection of the distribution in cyclic array; The present invention prepares the method that infra-red radiation strengthens composite ceramic fiber board, first powder and colloidal materials is prepared respectively, then mixed powder and colloidal materials obtain surface and to wet blank with the high IR emissivity layer of array of protrusions structure, finally apply sizing material on the fine plate surface of pottery and tip upside down on wet blank, pressurize and obtain product.The intensity of infrared enhancing composite ceramic fiber board of the present invention is high, and high IR emissivity layer is combined firmly with ceramic beaverboard basic unit, can temperature work more than 1100 DEG C for a long time, and 800 DEG C of hemisphere integrated radiant emittances reach 0.91, and synthesis energy saving efficiency is up to more than 10%.
Description
Technical field
The invention belongs to high temperature kiln energy-saving composite material field, be specifically related to a kind of infra-red radiation and strengthen composite ceramic fiber board material and preparation method thereof.
Background technology
Ceramic beaverboard is the heat-barrier material of common high temperature kiln.Conventional ceramic fiberboard intensity is poor, slag is easily fallen in surface in use procedure, limits its application as furnace operation face heat-barrier material; In addition, the infrared emittance of the fine plate of common pottery is lower, affects by this, and the effect of heat insulation of the fine plate of common pottery also decreases.To this, Chinese patent CN1552779A and CN101823871A is at inboard wall of burner hearth brushing one deck high emissivity coating material, and can play and strengthen effect of heat insulation effect, but thin plane coating material easily comes off, the service life of this face coat is limited; Chinese patent CN202734535U installs tapered masonry at inboard wall of burner hearth, improves heat utilization ratio by increasing Heat Transfer in Furnace area, but tapered masonry volume is large, quality weight, is not suitable for using on ceramic beaverboard inboard wall of burner hearth.Therefore be necessary to develop a kind of far infrared transmissivity high, simultaneously the composite ceramic fiber board of light durable again.
Summary of the invention
In view of this, a kind of infra-red radiation is the object of the present invention is to provide to strengthen composite ceramic fiber board and preparation method.
For achieving the above object, infra-red radiation of the present invention strengthens composite ceramic fiber board, is composited by the fine flaggy of the aluminium base pottery of silicic acid and high IR emissivity layer.
Further, described high IR emissivity layer thickness is 0.1-2mm.
Further, described high IR emissivity layer (2) surface has the projection of the distribution in cyclic array.
Further, the convex shape of described cyclic array distribution is hemispherical, cylinder taper type or honeycomb taper type.
Further, described high IR emissivity layer (2) is mixed by powder and colloid, and the mass ratio of described powder and colloid is 1:1-5.
Further, described powder is composed of the following components by mass:
Further, described colloid is composed of the following components by mass:
Water 55-88 part;
Waterglass 10-30 part;
Carboxymethyl cellulose 1-5 part;
Superfine silicon dioxide.1-10 part.
The invention also discloses a kind of method preparing infra-red radiation enhancing composite ceramic fiber board, comprise the following steps:
1), powder body material is prepared: a. gets silica 30-75 part, iron oxide 5-15 part, manganese oxide 5-15 part, zirconia 5-15 part, chromium oxide 5-15 part, carborundum 5-15 part; B. grinding raw material selected by a step is mixed; C. heat treatment b step gained powder; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1um;
2), colloidal materials is prepared: a. takes water 55-88 part, waterglass 10-30 part, carboxymethyl cellulose 1-5 part, superfine silicon dioxide 1-10 part; B. be uniformly mixed raw material selected by a step and obtain thick colloid;
3), prepare high IR emissivity layer and to wet blank: routine 1:1-1:2 gets the obtained powder of step 1) and step 2 in mass ratio) obtained colloid, mix and obtain wet blank;
4), composite molding: first the wet blank of step 3 is put into the mould with cyclic array distribution bulge-structure; Then in alumina silicate base ceramic fibre plate external coating one deck step 2) colloidal materials; Then alumina silicate base ceramic fibre plate is tipped upside down on the mould that wet blank is housed; Finally heating pressurization composite molding;
5), the demoulding: take out hot-forming after composite ceramic fiber board, cooling pruning get product.
The invention also discloses another kind and prepare the method that infra-red radiation strengthens composite ceramic fiber board, comprise the following steps:
1), powder body material is prepared: a. gets silica 30-75 part, iron oxide 5-15 part, manganese oxide 5-15 part, zirconia 5-15 part, chromium oxide 5-15 part, carborundum 5-15 part; B. grinding raw material selected by a step is mixed; C. heat treatment b step gained powder; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1um;
2), colloidal materials is prepared: a. takes water 55-88 part, waterglass 10-30 part, carboxymethyl cellulose 1-5 part, superfine silicon dioxide 1-10 part; B. be uniformly mixed raw material selected by a step and obtain thick colloid;
3), preparation has the fine plate of the aluminium base pottery of silicic acid of cyclic array projection: a. takes 35-45 part alumina-silicate ceramic fibre, 35-45 part organic bond, 35-45 part additive, 5-7 part inorganic bonding agent; B. raw material selected by a step are stirred and obtain fine plate slurry of making pottery; C. added by slurry in the mould with cyclic array distribution bulge-structure, after vacuumizing dehydration to slurry, the demoulding fine plate of must making pottery wets base;
4), surface spraying high emissivity coating material: a. by the quality of 1:3-1:5 than selecting step 1), 2) powder prepared and colloidal materials, mix and obtain high IR emissivity coating material; B. the high IR emissivity coating material obtained by step a sprays to step 3) gained fine plate of making pottery wets the surface of blank strip bulge-structure, and the average thickness of sprayed coating is 0.3-0.5mm;
5), drying and processing: by step 4) the fine plate of pottery of the band coating base that wets dries and hardens and obtain product.
Further, during described step 1) heat treatment, treatment temperature is 1050-1150 DEG C, and the processing time is 10-15 hour.
Beneficial effect of the present invention is: the intensity of infrared enhancing composite ceramic fiber board of the present invention is high, high IR emissivity layer is combined firmly with ceramic beaverboard basic unit, alligatoring is few, use does not fall slag, can temperature work more than 1100 DEG C for a long time, flame resistant is washed away and is better than conventional ceramic fiberboard with ageing resistace.Ceramic beaverboard skin of the present invention is compounded with high IR emissivity layer material, the inner infrared emission of burner hearth can be made significantly to strengthen, high IR emissivity layer surface can increase inboard wall of burner hearth swept area in periodicity concaveconvex structure in addition, thus strengthen the inner infrared emission of burner hearth, improve heat utilization rate.After testing, adopt the infrared enhancing composite ceramic fiber board prepared of said method 800 DEG C time hemisphere integrated radiant emittance all higher than 0.91, by synthesis energy saving efficiency when composite ceramic fiber board replacement experiment kiln roof of the furnace of the present invention and two side conventional ceramic fiberboard up to more than 10%, and in common tempering glass furnace during actual use, energy-saving efficiency can reach 8%.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described, more accurately succinct in order to express, remain portion size parameter in accompanying drawing, its unit is millimeter:
Fig. 1 is the structural representation with cylinder taper type array of protrusions structure mold, and wherein 1a is front view, and 1b is the A-A sectional view of 1a;
Fig. 2 is the structural representation with hexagon cellular taper type array of protrusions structure mold, and wherein 2a is front view, and 2b is the B-B sectional view of 2a;
Fig. 3 is the perspective view of the mould with spherical arc shape array of protrusions structure, and wherein 3a is front view, and 3b is the sectional view along XZ face of 3a;
Fig. 4 infra-red radiation obtained by embodiment 1 strengthens the cross-sectional view of composite ceramic fiber board;
Fig. 5 infra-red radiation obtained by embodiment 4 strengthens the cross-sectional view of composite ceramic fiber board.
Detailed description of the invention
Below in conjunction with accompanying drawing, be described in detail the preferred embodiments of the present invention, described in following examples, number is mass parts.
Embodiment 1:
The present embodiment prepares the method that infra-red radiation strengthens composite ceramic fiber board, comprises the following steps:
1, high IR emissivity layer powder body material is prepared: a. takes silica 4.5kg, iron oxide 1.5kg, manganese oxide 1kg, zirconia 1kg, chromium oxide 1kg, carborundum 1kg; B. raw material selected by a step are added ball mill grinding and mix; C. by b step gained powder 1100 DEG C of heat treatments 12 hours; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1 micron.Selected by this step, raw material are technical pure, and its particle diameter is about 200 orders.
2, high IR emissivity layer colloidal materials is prepared: a. takes water 10kg, waterglass 2.5kg, carboxymethyl cellulose 0.125kg, superfine silicon dioxide 0.5kg; B. raw material selected by a step are added mixer and stir to obtain thick colloid.
3, prepare high IR emissivity layer to wet blank: routine 1:1 gets the obtained powder of step 1 and the obtained colloid of step 2 in mass ratio, obtains wet blank after mixing.
4, composite molding: the blank that first wet by step 3 gained high IR emissivity layer is poured in mould, paves material, and suitably control its thickness; Then alumina silicate base ceramic fibre plate, and at external coating one deck step 2 gained colloidal materials; Then alumina silicate base ceramic fibre plate is tipped upside down on and high IR emissivity layer is housed wets on the mould of blank; Finally heat whole system and to the pressurization of alumina silicate base ceramic fibre plate, finally keep namely completing composite molding in 10 minutes under 180 DEG C and 0.12MPa.In the present embodiment, mould therefor as shown in Figure 1, its planar dimension is 400 × 600mm, surface is provided with the cylinder taper type bulge-structure of the distribution in cyclic array, and wherein: cylinder frustum height is 8mm, upper surface diameter is 4mm, bottom diameter is 8mm, each cylinder frustum is close-packed array structure, and lateral cell center distance (i.e. transversely arranged cycle) is 12mm, and longitudinal arrangement unit center is spaced apart 10mm; Ceramic beaverboard used is common commercially available ceramic beaverboard, and its thickness is 20mm, and planar dimension is 400 × 600mm.
5, the demoulding: take out hot-forming after composite ceramic fiber board, keep flat and hang to room temperature, then carry out cutting, deburring, grinding and namely obtain radiation intensification composite ceramic fiber board that is surperficial and mold cycle cylinder taper type array of protrusions complementary structure.Radiation intensification composite ceramic fiber board structure obtained by the present embodiment as shown in Figure 4, comprise the fine flaggy 1 of the aluminium base pottery of silicic acid through compound and high IR emissivity layer 2, described high IR emissivity layer 2 surface has the bulge-structure of the distribution in cyclic array, and its average thickness is 1.8mm.
Embodiment 2:
The present embodiment prepares the method that infra-red radiation strengthens composite ceramic fiber board, comprises the following steps:
1, high IR emissivity layer powder body material is prepared: a. takes silica 3.0kg, iron oxide 0.5kg, manganese oxide 1.5kg, zirconia 0.5kg, chromium oxide 0.5kg, carborundum 1.5kg; B. raw material selected by a step are added ball mill grinding and mix; C. by b step gained powder 1150 DEG C of heat treatments 10 hours; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1 micron.Selected by this step, raw material are technical pure, and its particle diameter is about 200 orders.
2, high IR emissivity layer colloidal materials is prepared: a. takes water 7kg, waterglass 3.75kg, carboxymethyl cellulose 0.4kg, superfine silicon dioxide 0.125kg; B. raw material selected by a step are added mixer and stir to obtain thick colloid.
3, prepare high IR emissivity layer to wet blank: routine 1:1.5 gets the obtained powder of step 1 and the obtained colloid of step 2 in mass ratio, obtains wet blank after mixing.
4, composite molding: the blank that first wet by step 3 gained high IR emissivity layer is poured in mould, paves material, and suitably control its thickness; Then alumina silicate base ceramic fibre plate, and at external coating one deck step 2 gained colloidal materials; Then alumina silicate base ceramic fibre plate is tipped upside down on and high IR emissivity layer is housed wets on the mould of blank; Finally heat whole system and to the pressurization of alumina silicate base ceramic fibre plate, finally keep namely completing composite molding in 10 minutes under 180 DEG C and 0.12MPa.In the present embodiment, mould therefor as shown in Figure 2, its planar dimension is 400 × 600mm, surface is provided with the hexagon cellular taper type bulge-structure of the distribution in cyclic array, and wherein: cylinder frustum height is 8mm, the upper end length of side is 2mm, the lower end length of side is 4mm, each hexagon cellular frustum is close-packed array structure, and lateral cell center distance (i.e. transversely arranged cycle) is 12mm, and longitudinal arrangement unit center is spaced apart 10mm; Ceramic beaverboard used is common commercially available ceramic beaverboard, and its thickness is 20mm, and planar dimension is 400 × 600mm.
5, the demoulding: take out hot-forming after composite ceramic fiber board, keep flat and hang to room temperature, then carry out cutting, deburring, grinding and namely obtain radiation intensification composite ceramic fiber board that the is surperficial and complementation of mold cycle hexagon cellular taper type array of protrusions.
Embodiment 3:
The present embodiment prepares the method that infra-red radiation strengthens composite ceramic fiber board, comprises the following steps:
1, high IR emissivity layer powder body material is prepared: a. takes silica 7.5kg, iron oxide 1kg, manganese oxide 0.5kg, zirconia 1.5kg, chromium oxide 1.5kg, carborundum 0.5kg; B. raw material selected by a step are added ball mill grinding and mix; C. by b step gained powder 1050 DEG C of heat treatments 15 hours; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1 micron.Selected by this step, raw material are technical pure, and its particle diameter is about 200 orders.
2, high IR emissivity layer colloidal materials is prepared: a. takes water 11kg, waterglass 1.25kg, carboxymethyl cellulose 0.625kg, superfine silicon dioxide 1.0kg; B. raw material selected by a step are added mixer and stir to obtain thick colloid.
3, prepare high IR emissivity layer to wet blank: routine 1:2 gets the obtained powder of step 1 and the obtained colloid of step 2 in mass ratio, obtains wet blank after mixing.
4, composite molding: the blank that first wet by step 3 gained high IR emissivity layer is poured in mould, paves material, and suitably control its thickness; Then alumina silicate base ceramic fibre plate, and at external coating one deck step 2 gained colloidal materials; Then alumina silicate base ceramic fibre plate is tipped upside down on and high IR emissivity layer is housed wets on the mould of blank; Finally heat whole system and to the pressurization of alumina silicate base ceramic fibre plate, finally keep namely completing composite molding in 10 minutes under 180 DEG C and 0.12MPa.The present embodiment mould therefor as shown in Figure 3, its planar dimension is 400 × 600mm, surface is provided with the spherical protuberances structure of the distribution in cyclic array, wherein: spherical protuberances height is 15mm, bump pitch is 30mm, in figure along xz and yz section be all sine curve distribution, functional expression meets z=15sin (x π/15) and z=15sin (y π/15); Ceramic beaverboard used is common commercially available ceramic beaverboard, and its thickness is 20mm, and planar dimension is 400 × 600mm.
5, the demoulding: take out hot-forming after composite ceramic fiber board, keep flat and hang to room temperature, then carry out cutting, deburring, grinding and namely obtain radiation intensification composite ceramic fiber board that the is surperficial and complementation of mold cycle hexagon cellular taper type array of protrusions.
Embodiment 4:
The present embodiment prepares the method that infra-red radiation strengthens composite ceramic fiber board, comprises the following steps:
1, high IR emissivity layer powder body material is prepared: a. takes silica 6.5kg, iron oxide 1.2kg, manganese oxide 1.3kg, zirconia 0.8kg, chromium oxide 1.1kg, carborundum 0.6kg; B. raw material selected by a step are added ball mill grinding and mix; C. by b step gained powder 1100 DEG C of heat treatments 12 hours; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1 micron.Selected by this step, raw material are technical pure, and its particle diameter is about 200 orders.
2, high IR emissivity layer colloidal materials is prepared: a. takes water 9kg, waterglass 2.0kg, carboxymethyl cellulose 0.3kg, superfine silicon dioxide 0.5kg; B. raw material selected by a step are added mixer and stir to obtain thick colloid.
3, the fine plate of the aluminium base pottery of silicic acid of the concavo-convex array structure of preparation band periodicity: it is 1 ~ 5mm alumina-silicate ceramic fibre that a. takes 4.0kg length, 4.0kg organic bond (selecting resin, starch or cellulose in the present embodiment), 4kg additive (selecting silicon dioxide ultrafine powder body in the present embodiment), 0.6kg inorganic bonding agent (selecting Ludox or Alumina gel in the present embodiment); B. raw material selected by a step are added mixing tank to stir and obtain fine plate slurry of making pottery; C. slurry is put into the mould with periodically concavo-convex array structure, after vacuumizing dehydration to slurry, the demoulding fine plate of pottery namely obtained with periodically concavo-convex array structure wets base.In the present embodiment, mould therefor as shown in Figure 1, its planar dimension is 400 × 600mm, surface is provided with the cylinder taper type bulge-structure of the distribution in cyclic array, and wherein: cylinder frustum height is 8mm, upper surface diameter is 4mm, bottom diameter is 8mm, each cylinder frustum is close-packed array structure, and lateral cell center distance (i.e. transversely arranged cycle) is 12mm, and longitudinal arrangement unit center is spaced apart 10mm; Ceramic beaverboard used is common commercially available ceramic beaverboard, and its thickness is 20mm, and planar dimension is 400 × 600mm.
4, the powder prepared than selecting step 1,2 of surface spraying high emissivity coating material: a. quality of pressing 1:3 and colloidal materials, mix and obtain high emissivity coating material; B. the high emissivity coating material spraying obtained by step a to wet the surface of blank strip periodic array arrangement to step 3 gained fine plate of making pottery, and in the present embodiment, the average thickness of sprayed coating is 0.3mm.
5, drying and processing: drying room put into by the base that wet by fine for the pottery of step 4 band coating plate dries, and bake out temperature is about 100 DEG C, to making pottery, fine plate and face coat harden and obtain product.Radiation intensification composite ceramic fiber board structure obtained by the present embodiment as shown in Figure 5, comprise the fine flaggy 1 of the aluminium base pottery of silicic acid through compound and high IR emissivity layer 2, the aluminium base pottery of described silicic acid fine flaggy 1 surface has the bulge-structure of the distribution in cyclic array, high IR emissivity layer 2 is attached on bulge-structure, and surface is also in cyclic array convex shape.
Embodiment 5:
The present embodiment prepares the method that infra-red radiation strengthens composite ceramic fiber board, comprises the following steps:
1, high IR emissivity layer powder body material is prepared: a. takes silica 6.5kg, iron oxide 1.2kg, manganese oxide 1.3kg, zirconia 0.8kg, chromium oxide 1.1kg, carborundum 0.6kg; B. raw material selected by a step are added ball mill grinding and mix; C. by b step gained powder 1100 DEG C of heat treatments 12 hours; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1 micron.Selected by this step, raw material are technical pure, and its particle diameter is about 200 orders.
2, high IR emissivity layer colloidal materials is prepared: a. takes water 9kg, waterglass 2.0kg, carboxymethyl cellulose 0.3kg, superfine silicon dioxide 0.5kg; B. raw material selected by a step are added mixer and stir to obtain thick colloid.
3, the fine plate of the aluminium base pottery of silicic acid of the concavo-convex array structure of preparation band periodicity: it is 1 ~ 5mm alumina-silicate ceramic fibre that a. takes 6kg length, 5kg organic bond (selecting resin, starch or cellulose in the present embodiment), 6kg additive (selecting silicon dioxide ultrafine powder body in the present embodiment), 1.5kg inorganic bonding agent (selecting Ludox or Alumina gel in the present embodiment); B. raw material selected by a step are added mixing tank to stir and obtain fine plate slurry of making pottery; C. slurry is put into the mould with periodically concavo-convex array structure, after vacuumizing dehydration to slurry, the demoulding fine plate of pottery namely obtained with periodically concavo-convex array structure wets base.The present embodiment mould therefor as shown in Figure 3, its planar dimension is 400 × 600mm, surface is provided with the spherical protuberances structure of the distribution in cyclic array, wherein: spherical protuberances height is 15mm, bump pitch is 30mm, in figure along xz and yz section be all sine curve distribution, functional expression meets z=15sin (x π/15) and z=15sin (y π/15); Ceramic beaverboard used is common commercially available ceramic beaverboard, and its thickness is 20mm, and planar dimension is 400 × 600mm.
4, the powder prepared than selecting step 1,2 of surface spraying high emissivity coating material: a. quality of pressing 1:5 and colloidal materials, mix and obtain high emissivity coating material; B. the high emissivity coating material spraying obtained by step a to wet the surface of blank strip periodic array arrangement to step 3 gained fine plate of making pottery, and in the present embodiment, the average thickness of sprayed coating is 0.5mm.
5, drying and processing: drying room put into by the base that wet by fine for the pottery of step 4 band coating plate dries, and bake out temperature is about 100 DEG C, to making pottery, fine plate and face coat harden and obtain product.
The composite ceramic fiber board that above-described embodiment makes slowly heats up with stove after installing, and at 600 DEG C ~ 1100 DEG C temperature, baker just can at high temperature work after 24 hours for a long time.
The intensity of infrared enhancing composite ceramic fiber board of the present invention is high, high emissivity layer is combined firmly with ceramic beaverboard basic unit, alligatoring is few, use and do not fall slag, can temperature work more than 1100 DEG C for a long time, and flame resistant is washed away and is better than conventional ceramic fiberboard with ageing resistace.Ceramic beaverboard skin of the present invention is compounded with high IR emissivity layer material, the inner infrared emission of burner hearth can be made significantly to strengthen, high IR emissivity layer surface can increase inboard wall of burner hearth swept area in periodicity concaveconvex structure in addition, thus strengthen the inner infrared emission of burner hearth, improve heat utilization rate.After testing, adopt the infrared enhancing composite ceramic fiber board prepared of said method 800 DEG C time hemisphere integrated radiant emittance all higher than 0.91, by synthesis energy saving efficiency when composite ceramic fiber board replacement experiment kiln roof of the furnace of the present invention and two side conventional ceramic fiberboard up to more than 10%, and in common tempering glass furnace during actual use, energy-saving efficiency can reach 8%.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (9)
1. prepare the method that infra-red radiation strengthens composite ceramic fiber board for one kind, it is characterized in that, described composite ceramic fiber board is composited by the fine flaggy of the aluminium base pottery of silicic acid (1) and high IR emissivity layer (2), and described composite ceramic fiber board preparation method comprises the following steps:
1), powder body material is prepared: a. gets silica 30-75 part, iron oxide 5-15 part, manganese oxide 5-15 part, zirconia 5-15 part, chromium oxide 5-15 part, carborundum 5-15 part; B. grinding raw material selected by a step is mixed; C. heat treatment b step gained powder; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1 μm;
2), colloidal materials is prepared: a. takes water 55-88 part, waterglass 10-30 part, carboxymethyl cellulose 1-5 part, superfine silicon dioxide 1-10 part; B. be uniformly mixed raw material selected by a step and obtain thick colloid;
3), prepare high IR emissivity layer and to wet blank: routine 1:1-1:2 gets the obtained powder of step 1) and step 2 in mass ratio) obtained colloid, mix and obtain wet blank;
4), composite molding: first the wet blank of step 3) is put into the mould with cyclic array distribution bulge-structure; Then in alumina silicate base ceramic fibre plate external coating one deck step 2) colloidal materials; Then alumina silicate base ceramic fibre plate is tipped upside down on the mould that wet blank is housed; Finally heating pressurization composite molding;
5), the demoulding: take out hot-forming after composite ceramic fiber board, cooling pruning get product.
2. prepare the method that infra-red radiation strengthens composite ceramic fiber board for one kind, it is characterized in that, described composite ceramic fiber board is composited by the fine flaggy of the aluminium base pottery of silicic acid (1) and high IR emissivity layer (2), and described composite ceramic fiber board preparation method comprises the following steps:
1), powder body material is prepared: a. gets silica 30-75 part, iron oxide 5-15 part, manganese oxide 5-15 part, zirconia 5-15 part, chromium oxide 5-15 part, carborundum 5-15 part; B. grinding raw material selected by a step is mixed; C. heat treatment b step gained powder; D. ball milling step c powder obtains the superfine powder that particle diameter is less than 1 μm;
2), colloidal materials is prepared: a. takes water 55-88 part, waterglass 10-30 part, carboxymethyl cellulose 1-5 part, superfine silicon dioxide 1-10 part; B. be uniformly mixed raw material selected by a step and obtain thick colloid;
3), preparation has the fine plate of the aluminium base pottery of silicic acid of cyclic array projection: a. takes 35-45 part alumina-silicate ceramic fibre, 35-45 part organic bond, 35-45 part additive, 5-7 part inorganic bonding agent; B. raw material selected by a step are stirred and obtain ceramic beaverboard slurry; C. added by slurry in the mould with cyclic array distribution bulge-structure, after vacuumizing dehydration to slurry, the demoulding obtains ceramic beaverboard and to wet base;
4), surface spraying high emissivity coating material: a. by the quality of 1:3-1:5 than selecting step 1), 2) powder prepared and colloidal materials, mix and obtain high IR emissivity coating material; B. the high IR emissivity coating material obtained by step a sprays to step 3) gained ceramic beaverboard wets the surface of blank strip bulge-structure, and the average thickness of sprayed coating is 0.3-0.5mm;
5), drying and processing: by step 4) ceramic beaverboard of the band coating base that wets dries and hardens and obtain product.
3. according to claim 1 or 2, prepare the method that infra-red radiation strengthens composite ceramic fiber board, it is characterized in that: described high IR emissivity layer (2) thickness is 0.1-2mm.
4. according to claim 1 or 2, prepare the method that infra-red radiation strengthens composite ceramic fiber board, it is characterized in that: described high IR emissivity layer (2) surface has the projection of the distribution in cyclic array.
5. prepare the method that infra-red radiation strengthens composite ceramic fiber board according to claim 4, it is characterized in that: the convex shape of described cyclic array distribution is hemispherical, cylinder taper type or honeycomb taper type.
6. prepare the method that infra-red radiation strengthens composite ceramic fiber board according to claim 5, it is characterized in that: described high IR emissivity layer (2) is mixed by powder and colloid, the mass ratio of described powder and colloid is 1:1-5.
7. prepare the method that infra-red radiation strengthens composite ceramic fiber board according to claim 6, it is characterized in that: described powder is composed of the following components by mass:
Silica 30-75 part;
Iron oxide 5-15 part;
Manganese oxide 5-15 part;
Zirconia 5-15 part;
Chromium oxide 5-15 part;
Carborundum 5-15 part.
8. prepare the method that infra-red radiation strengthens composite ceramic fiber board according to claim 6, it is characterized in that: described colloid is composed of the following components by mass:
Water 55-88 part;
Waterglass 10-30 part;
Carboxymethyl cellulose 1-5 part;
Superfine silicon dioxide.1-10 part.
9. according to claim 1 or 2, prepare the method that infra-red radiation strengthens composite ceramic fiber board, it is characterized in that: during described step 1) heat treatment, treatment temperature is 1050-1150 DEG C, the processing time is 10-15 hour.
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| CN104098340B (en) * | 2014-07-08 | 2017-01-18 | 中国科学院合肥物质科学研究院 | High emissivity ceramic fiber plate and preparation method thereof |
| CN104315737B (en) * | 2014-10-13 | 2016-01-20 | 山东理工大学 | A kind of preparation method of red mud ceramic heat collecting plate |
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| CN106839779A (en) * | 2017-04-07 | 2017-06-13 | 山东慧敏科技开发有限公司 | A kind of dedicated templates and pouring technology for increasing heater for rolling steel radiant heat transfer area |
| CN107459359B (en) * | 2017-08-09 | 2019-12-10 | 航天特种材料及工艺技术研究所 | Silica-based light ceramic thermal protection material and preparation method and application thereof |
| CN107434421B (en) * | 2017-08-10 | 2019-12-10 | 航天特种材料及工艺技术研究所 | antenna window component with wave-transmitting, heat-insulating and bearing performances and preparation method thereof |
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| CN2088678U (en) * | 1991-04-13 | 1991-11-13 | 中国石油化工总公司辽阳石油化纤公司 | All fibre industrial furnace liner |
| CA2290161A1 (en) * | 1998-11-16 | 2000-05-16 | Rfw, Inc. | Multiple density monolithic refractory material and burner |
| CN101591193A (en) * | 2008-12-27 | 2009-12-02 | 摩根凯龙（荆门）热陶瓷有限公司 | A kind of ceramic beaverboard |
| CN101823871A (en) * | 2010-04-27 | 2010-09-08 | 上海臻广新材料科技有限公司 | Method for preparing low-cost infrared radiation coating |
| CN202734535U (en) * | 2012-04-13 | 2013-02-13 | 李理 | Oriented reinforcement radiation heat transfer element of industrial furnace |
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