CN108083781A - Porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum and preparation method thereof - Google Patents
Porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum and preparation method thereof Download PDFInfo
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- CN108083781A CN108083781A CN201711471415.7A CN201711471415A CN108083781A CN 108083781 A CN108083781 A CN 108083781A CN 201711471415 A CN201711471415 A CN 201711471415A CN 108083781 A CN108083781 A CN 108083781A
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
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- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
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Abstract
The invention discloses porous wear-resisting push plates of heat dissipation of a kind of pushed bat kiln casting zirconia corundum and preparation method thereof, the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum includes the push plate body made of casting zirconia corundum, push plate body include the wear-resistant surface for holding burning face, being arranged on push plate body bottom portion for being arranged on push plate bodies top and it is multiple through hold burning face and wear-resistant surface through circular hole, hold and a plurality of raised line quirk be provided on burning face；It is set through circular hole perpendicular to burning face and wear-resistant surface is held.Pushed bat kiln is formed with the porous wear-resisting push plate of heat dissipation of casting zirconia corundum by electric smelting founding, the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum has high temperature tolerance energy, high abrasion characteristic and low friction resistance, it is arranged on the raised line quirk for holding burning face, quirk gap is left between burning face so that loading product and holding, furnace heat can be more effectively transferred into product bottom, so that temperature is uniform, through the perforation circular hole of push plate body, the heating surface area and heat dissipation area of push plate body are effectively increased.
Description
Technical field
The present invention relates to porous wear-resisting push plates of heat dissipation of a kind of pushed bat kiln casting zirconia corundum and preparation method thereof.
Background technology
At present, pushed bat kiln is a kind of common tunnel type continuous production heating furnace of industrial circle, be mainly used for ceramic,
The sintering of the products such as ferromagnet products, lithium cell cathode material, chemical materials, electronic component, refractory material.Domestic pushed bat kiln
Used push plate is mainly carborundum push plate, and carborundum push plate tool stable chemical performance, thermal conductivity factor are high, coefficient of thermal expansion
It is small, wear-resisting property is good, highly thermally conductive property, high collapse electric field strength and the features such as high maximum current density, but its carbofrax material
Surface layer is oxidized easily, and starts oxidation process at 700 DEG C or more, has the precipitations such as cristobalite to 1300 DEG C or so materials itself,
Secondary pollution easily is caused to the product fired, while reduces service life.Meanwhile being produced in some product sintering procedures
Raw low-melting-point material fugitive constituent, can also be attached to carborundum plate surfaces, under 1000 DEG C or so of temperature conditionss, with carborundum
The silicon dioxide meter layer film that push plate itself is formed forms glass phase together, causes the heat resistance and physical property of carborundum
It reduces, and the thermal shock resistance poor-performing of carborundum, it easily cracks under the work condition environment of rapid heat cycle.Chen Li kinds of team in
It proposes within 2014《A kind of 1750 DEG C of high-temperature corundum mullite push plates and preparation process》(CN 102674863 is B.2014), carries
A kind of based on the multiple push plate extremely preparation process to material composition of fused white corundum-mullite, pushing away prepared by the invention is gone out
Plate introduces mullite ingredient, effectively increases the push plate material heat shaken stability of itself, but is reduction of high temperature load softening
Performance, narrow scope of application, the product for being suitable only for underloading pushed bat kiln load；Hunan Mets the New Material Limited Company exists
Disclosed in 2015《A kind of push plate for improving pushed bat kiln atmosphere evenness》(CN 204902573 is U.2015), is again based on
Fused white corundum-mullite is multiple to material structure, is inherently the increasing by mullite ingredient to the research that push plate carries out
Add, improve the heat shaken stability of product, prepared again by the technique of compacting and high temperature firing, the two shaping side
The same formula is molded using friction press, then through high temperature firing, push plate fundamental characteristics is similar, add in mullite ingredient with
Afterwards, there are it is not wear-resisting the defects of.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming the prior art, and it is firm to provide a kind of pushed bat kiln founding zirconium
Beautiful porous wear-resisting push plate of heat dissipation and preparation method thereof, the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum pass through electric smelting founding
It forming, the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum has high temperature tolerance energy, high abrasion characteristic and low friction resistance,
It is arranged on the raised line quirk for holding burning face so that load product and hold and leave quirk gap between burning face, furnace heat can more have
It is transferred to product bottom to effect so that temperature is uniform, through the perforation circular hole of push plate body, effectively increases push plate body
Heating surface area and heat dissipation area.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of pushed bat kiln casting zirconia corundum is porous to be dissipated
The wear-resisting push plate of heat, it includes the push plate body made of casting zirconia corundum, and the push plate body includes：
Be arranged on push plate bodies top holds burning face, and described hold is provided with a plurality of raised line quirk on burning face；
It is arranged on the wear-resistant surface of push plate body bottom portion；
It is multiple through hold burning face and wear-resistant surface through circular hole, it is described through circular hole perpendicular to holding burning face and wear-resistant surface is set
It puts.
Further, the push plate body is rectangular parallelepiped structure.
Further, the length and width of the push plate body is 450mm, a height of 70mm of the push plate body.
Further, the section of the raised line quirk is trapezium structure.
Further, upper 15~20mm of bottom width of the raised line quirk, lower 20~30mm of bottom width of the raised line quirk, it is described
High 20~the 30mm of raised line quirk.
Further, a diameter of 15~30mm through circular hole.
Further, the adjacent pitch of holes between circular hole is 40~50mm.
Further, the density of the casting zirconia corundum is 3.7~4.1cm3/g。
The present invention also provides a kind of preparation method of the wear-resisting push plate of the porous heat dissipation of pushed bat kiln casting zirconia corundum, in method
It comprises the steps of：
(1) prepare sand mo(u)ld, select natural sand and quartz sand that sand mo(u)ld is made as the raw material for preparing sand mo(u)ld, and in sand mo(u)ld
Each casting face sputtered quartz sand fine powder, the sand mo(u)ld are provided with tapping hole；
(2) raw material is configured, commercial alumina and zircon sand are mixed, after 1800-1900 DEG C of high-temperature digestions, shape
Into solution, solution is poured by tapping hole in sand mo(u)ld, forms the thick embryo of push plate body；
(3) anneal, it will be in direct handling after the thick embryo demoulding of push plate body in step (2) to the kiln car of tunnel oven so that
The temperature of the thick embryo of push plate body is progressively successively decreased；So that the thick embryo Layer by layer solidification of push plate body；
(4) Precision Machining after the thick embryo cooling of push plate body, is cut with digital control water cutter, drilled, chamfering, that is, finished product is made.
Further, the mass ratio of commercial alumina and zircon sand is 1 in step (1):1.
Above-mentioned technical proposal is employed, the invention has the advantages that：
(1) pushed bat kiln of the invention is provided with raised line quirk, the raised line with the porous wear-resisting push plate of heat dissipation of casting zirconia corundum
Quirk to load product and leaves quirk gap between holding burning face, and furnace heat can be more effectively transferred into product bottom,
So that temperature is uniform；
(2) pushed bat kiln of the invention is provided with perforation circular hole with the porous wear-resisting push plate of heat dissipation of casting zirconia corundum, described to run through
Circular hole on the premise of the structural strength of push plate body is not influenced, can effectively increase the heating surface area and radiating surface of product
Product, and alleviate push plate this body weight so that the overall weight of push plate body is equal to traditional carborundum push plate and corundum not
Carry out stone push plate, energy consumption will not be increased；
(3) the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum of the invention uses the raw material system of less species
Into so that the material composition of push plate body is more single, reduces the presence of impurity；
(4) push plate body of the invention employs electric smelting founding rather than the mode of press compacting is molded so that push plate sheet
The density of body is significantly promoted, relatively traditional push plate 3.1cm3The proportion of/g, improves 20-30%, proportion up to 3.7-
4.1cm3/ g, the promotion of proportion mean the hold one's breath reduction of porosity, the enhancing of structural strength and the promotion of wear-resisting property；
(5) push plate body of the invention employs electric smelting founding rather than the mode of press compacting is molded so that push plate sheet
Body surface face forms substantial amounts of corundum and the eutectoid of the oblique stone of zirconium and glass phase, and surface flatness increases, and frictional resistance reduces, mill
Loss rate reduces so that pushed bat kiln operating is more light；
(6) pushed bat kiln of the invention is processed with the porous wear-resisting push plate of heat dissipation of casting zirconia corundum using digital control water cutter, no
It can only avoid in compression moulding because push plate body distortion problem caused by the factors such as die deformation, and the leftover pieces processed
It can reuse, it is not only environmentally protective, but also save resource.
Description of the drawings
Fig. 1 is the structure diagram of the porous wear-resisting push plate of heat dissipation of the pushed bat kiln casting zirconia corundum of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the bottom view of Fig. 1；
Fig. 4 is the structure diagram of the sand mo(u)ld of the present invention.
Specific embodiment
In order that the present invention can be more clearly and readily understood, it is right below according to specific embodiment and with reference to attached drawing
The present invention is described in further detail.
Embodiment one
As shown in Figures 1 to 3, the porous wear-resisting push plate of heat dissipation of a kind of pushed bat kiln casting zirconia corundum, it includes firm by founding zirconium
Push plate body 1 made of jade, the push plate body 1 include：
Be arranged on 1 top of push plate body holds burning face 2, and described hold is provided with a plurality of raised line quirk 3 on burning face 2；
It is arranged on the wear-resistant surface 4 of 1 bottom of push plate body；
It is multiple through hold burning face 2 and wear-resistant surface 4 through circular hole 5, it is described through circular hole 5 perpendicular to holding burning face 2 and wear-resisting
Face 4 is set.
As shown in Figures 1 to 3, the push plate body 1 is rectangular parallelepiped structure.
Length and width such as the push plate body 1 is 450mm, a height of 70mm of the push plate body 1.
As shown in Figures 1 to 3, the section of the raised line quirk 3 is trapezium structure.
Upper 15~20mm of bottom width of the raised line quirk 3, lower 20~30mm of bottom width of the raised line quirk 3, the raised line
3 high 20~30mm of quirk.In the present embodiment, the upper bottom width 20mm of the raised line quirk 3, the lower bottom width of the raised line quirk 3
30mm, the 3 high 30mm of raised line quirk.
A diameter of 15~30mm through circular hole 5.In the present embodiment, a diameter of 30mm through circular hole 5.
The adjacent pitch of holes between circular hole 5 is 40~50mm.
The density of the casting zirconia corundum is 3.7~4.1cm3/g.In the present embodiment, the density of the casting zirconia corundum
For 3.7cm3/g。
Embodiment two
A kind of preparation method of the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum as described in embodiment one, method
In comprise the steps of：
(1) prepare sand mo(u)ld 6, select natural sand and quartz sand that sand mo(u)ld 6 is made as the raw material for preparing sand mo(u)ld 6, and in sand mo(u)ld
6 each casting face sputtered quartz sand fine powder, the sand mo(u)ld 6 are provided with tapping hole 7；
(2) raw material is configured, commercial alumina and zircon sand are mixed, after 1800-1900 DEG C of high-temperature digestions, shape
Into solution, solution is poured by tapping hole 7 in sand mo(u)ld 6, forms the thick embryo 8 of push plate body；
(3) anneal, it will be in direct handling after the thick demoulding of embryo 8 of push plate body in step (2) to the kiln car of tunnel oven so that
The temperature of the thick embryo 8 of push plate body is progressively successively decreased；So that thick 8 Layer by layer solidification of embryo of push plate body；
(4) Precision Machining after the thick embryo 8 of push plate body cools down, is cut with digital control water cutter, drilled, chamfering, that is, finished product is made.
The mass ratio of commercial alumina and zircon sand is 1 in step (1):1.
The operation principle of the present invention is as follows：
The pushed bat kiln of the present invention is provided with raised line quirk 3, the raised line fire with the porous wear-resisting push plate of heat dissipation of casting zirconia corundum
Road 3 to load product and leaves quirk gap between holding burning face 2, and furnace heat can be more effectively transferred into product bottom,
So that temperature is uniform；The pushed bat kiln of the present invention is provided with perforation circular hole 5 with the porous wear-resisting push plate of heat dissipation of casting zirconia corundum, described to pass through
Wearing circular hole 5 on the premise of the structural strength of push plate body 1 is not influenced, can effectively increase heating surface area and the heat dissipation of product
Area, and alleviate 1 weight of push plate body so that the overall weight of push plate body 1 is equal to traditional carborundum push plate and just
Beautiful mullite push plate will not increase energy consumption；The porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum of the present invention is using less
The raw material of species are made so that the material composition of push plate body 1 is more single, reduces the presence of impurity；The present invention's pushes away
Plate body 1 employs electric smelting founding rather than the mode of press compacting is molded so that and the density of push plate body 1 is significantly promoted,
Relatively traditional push plate 3.1cm3The density of/g, the density of push plate body 1 of the invention improve 20-30%, and density is reachable
3.7—4.1cm3/ g, the promotion of density mean the hold one's breath reduction of porosity, the enhancing of structural strength and the promotion of wear-resisting property；
The push plate body 1 of the present invention employs electric smelting founding rather than the mode of press compacting is molded so that 1 surface of push plate body is formed
Substantial amounts of corundum and the eutectoid of the oblique stone of zirconium and glass phase, surface flatness increase, and frictional resistance reduces, and wear rate reduces,
So that pushed bat kiln operating is more light；The porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum of the present invention uses digital control water cutter
It is processed, can not only avoid because of 1 problem on deformation of push plate body caused by the factors such as die deformation in compression moulding, and
The leftover pieces of processing can reuse, not only environmentally protective, but also save resource.
Particular embodiments described above, pair present invention solves the technical problem that, technical solution and advantageous effect carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection domain.
Claims (10)
1. a kind of porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum, which is characterized in that it is included by casting zirconia corundum system
Into push plate body (1), the push plate body (1) includes：
It is arranged at the top of push plate body (1) and holds burning face (2), described hold is provided with a plurality of raised line quirk (3) on burning face (2)；
It is arranged on the wear-resistant surface (4) of push plate body (1) bottom；
It is multiple through hold burning face (2) and wear-resistant surface (4) through circular hole (5), it is described through circular hole (5) perpendicular to holding burning face (2)
It is set with wear-resistant surface (4).
2. the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum according to claim 1, it is characterised in that：It is described to push away
Plate body (1) is rectangular parallelepiped structure.
3. the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum according to claim 2, it is characterised in that：It is described to push away
The length and width of plate body (1) is 450mm, a height of 70mm of the push plate body (1).
4. the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum according to claim 1, it is characterised in that：It is described convex
The section of quirk (3) is trapezium structure.
5. the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum according to claim 4, it is characterised in that：It is described convex
Upper 15~20mm of bottom width of quirk (3), lower 20~30mm of bottom width of the raised line quirk (3), the raised line quirk (3) are high by 20
~30mm.
6. the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum according to claim 1, it is characterised in that：It is described to pass through
Wear a diameter of 15~30mm of circular hole (5).
7. the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum according to claim 6, it is characterised in that：It is adjacent to pass through
It is 40~50mm to wear the pitch of holes between circular hole (5).
8. the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum according to claim 1, it is characterised in that：It is described molten
The density for casting fused alumina zirconia is 3.7~4.1cm3/g。
9. a kind of preparation method of the porous wear-resisting push plate of heat dissipation of such as 1~8 any one of them pushed bat kiln casting zirconia corundum of right,
It is characterized in that, it is comprised the steps of in method：
(1) prepare sand mo(u)ld (6), select natural sand and quartz sand that sand mo(u)ld (6) is made as the raw material for preparing sand mo(u)ld (6), and in sand
Each casting face sputtered quartz sand fine powder of mould (6), the sand mo(u)ld (6) are provided with tapping hole (7)；
(2) raw material is configured, commercial alumina and zircon sand are mixed, after 1800-1900 DEG C of high-temperature digestions, is formed molten
Liquid pours into solution in sand mo(u)ld (6) by tapping hole (7), forms the thick embryo of push plate body (8)；
(3) anneal, it will be in direct handling after the thick embryo of push plate body (8) demoulding in step (2) to the kiln car of tunnel oven so that push away
The temperature of the thick embryo of plate body (8) is progressively successively decreased；So that the thick embryo of push plate body (8) Layer by layer solidification；
(4) Precision Machining after the thick embryo of push plate body (8) cooling, is cut with digital control water cutter, drilled, chamfering, that is, finished product is made.
10. the preparation method of the porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum according to claim 9, feature
It is：The mass ratio of commercial alumina and zircon sand is 1 in step (1):1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471415.7A CN108083781A (en) | 2017-12-29 | 2017-12-29 | Porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471415.7A CN108083781A (en) | 2017-12-29 | 2017-12-29 | Porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum and preparation method thereof |
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| CN201711471415.7A Pending CN108083781A (en) | 2017-12-29 | 2017-12-29 | Porous wear-resisting push plate of heat dissipation of pushed bat kiln casting zirconia corundum and preparation method thereof |
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|---|---|---|---|---|
| US4139394A (en) * | 1974-12-26 | 1979-02-13 | Societe Europeenne Des Produits Refractaires | Linings for pusher ovens |
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| CN102538468A (en) * | 2010-12-17 | 2012-07-04 | 瑞泰科技股份有限公司 | Low-heat-conduction fused cast zirconia-corundum compound bricks and production method thereof |
| CN204902573U (en) * | 2015-08-20 | 2015-12-23 | 湖南美特新材料科技有限公司 | Push pedal of pushed bat kiln atmosphere homogeneity improves |
| CN205808129U (en) * | 2016-06-27 | 2016-12-14 | 浙江科奥陶业有限公司 | A kind of nitrogen kiln for sintering high-performance corundum mullite rock push pedal |
-
2017
- 2017-12-29 CN CN201711471415.7A patent/CN108083781A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139394A (en) * | 1974-12-26 | 1979-02-13 | Societe Europeenne Des Produits Refractaires | Linings for pusher ovens |
| CN101118116A (en) * | 2007-09-14 | 2008-02-06 | 湖北三新磷酸有限公司 | Novel industrialization multi-channel type pushed-bat kiln for directly preparing phosphoric acid with phosphate ore |
| CN102538468A (en) * | 2010-12-17 | 2012-07-04 | 瑞泰科技股份有限公司 | Low-heat-conduction fused cast zirconia-corundum compound bricks and production method thereof |
| CN204902573U (en) * | 2015-08-20 | 2015-12-23 | 湖南美特新材料科技有限公司 | Push pedal of pushed bat kiln atmosphere homogeneity improves |
| CN205808129U (en) * | 2016-06-27 | 2016-12-14 | 浙江科奥陶业有限公司 | A kind of nitrogen kiln for sintering high-performance corundum mullite rock push pedal |
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| Title |
|---|
| 许晓海等: "《耐火材料技术手册》", 31 January 2000, 冶金工业出版社 * |
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Application publication date: 20180529 |