CN203968405U - A kind of boron carbide composite ceramic plate type heating device - Google Patents
A kind of boron carbide composite ceramic plate type heating device Download PDFInfo
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- CN203968405U CN203968405U CN201420357751.4U CN201420357751U CN203968405U CN 203968405 U CN203968405 U CN 203968405U CN 201420357751 U CN201420357751 U CN 201420357751U CN 203968405 U CN203968405 U CN 203968405U
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- calandria
- slot
- heater
- changeover portion
- length
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Abstract
The utility model discloses a kind of boron carbide composite ceramic plate type heating device, this heater comprises calandria, link, changeover portion and securing member, wherein, on calandria, offer three slots, make calandria form the heating plate of continuous bend, link and changeover portion are one-body molded, and for connecting calandria and wire or calandria and other calandria, the ceramics plate type calandria that the utility model provides has the features such as resistance is moderate, the efficiency of heating surface is high, capable of stacking uses, easy to process.
Description
Technical field
The utility model relates to ceramic heat field, relates in particular to a kind of boron carbide composite ceramic plate type heating device.
Background technology
Superhigh temperature resistance furnace, vacuum furnace, atmosphere furnace and sintering furnace are widely used in the material preparation of powder metallurgy, wherein calandria element is the critical component in above-mentioned body of heater, these calandria elements require to use under oxidizing atmosphere, vacuum environment, various inert ambient environment and reducing atmosphere, how to design board-like heater or component shape, to directly affect resistance and the efficiency of heating surface of this calandria element, thereby guarantee the maximum operating temperature of superhigh temperature resistance furnace, vacuum furnace, atmosphere furnace and sintering furnace.
The importance of preparing boron carbide composite ceramic plate type heating body member or install is technically mainly reflected in the good efficiency of heating surface and convertibility.
In prior art, there is the board-like element using pottery as calandria, as Chinese patent CN10150735A, a kind of heating element is disclosed, this heating element comprises ceramic body, the first electrode and the second electrode, this first electrode and the second electrode are bar shaped, isometric with ceramic body, it is arranged in the two ends up and down of ceramic body along its length, and this heating element is dull and stereotyped entirety, power consumption is large, the efficiency of heating surface is not high, and needs strip electroplax to switch on to it, has increased the unsafe factor using.
And for example Chinese patent CN102625496A, a kind of sheet ceramic heating element is disclosed, this heater is flaky pottery, conductive lead wire and lower conductive lead wire are set respectively at its length direction two ends, this heater is bar shaped platy structure, the efficiency of heating surface is not high, is difficult to reach the maximum operating temperature of the high-temperature services such as superhigh temperature stove, vacuum furnace, and has the defect that heating efficiency is low.
Because prior art exists above-mentioned problems, so the inventor studies and improves existing ceramic heating device, to developing, resistance is large, heating efficiency is high, be applicable to the heater of superhigh temperature resistance furnace, vacuum furnace, atmosphere furnace and sintering furnace.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of ceramics plate type heater, this heater comprises calandria, link, changeover portion and securing member, wherein, calandria is slab construction, on this calandria, offer three slots, make calandria form the heating plate of continuous bend, in the situation that heater total length is constant, increase the length of calandria, thereby increase the resistance of heater, and then increased the efficiency of heating surface of heater, completed on this basis the utility model.
Particularly, the purpose of this utility model is to provide a kind of ceramic heating device, and this heater comprises link 1, changeover portion 2, calandria 3 and securing member 4, wherein,
Calandria 3 is tabular, offers successively the first slot 31 and the second slot 32 on this calandria 3 from bottom to top, and between the first slot 31 and the second slot 32 in opposite direction, offer the 3rd slot 33 from top to bottom, wherein,
The degree of depth of the first slot 31, the second slot 32 and the 3rd slot 33 equals the thickness of calandria 3, the length of the first slot 31, the second slot 32 and the 3rd slot 33 is less than the length of calandria 3,, above-mentioned slot penetrates calandria 3, make calandria 3 form the heating plate of continuous bend, thereby the overall dimension of calandria 3 is constant keeping, do not increase under the condition of heater total length, increase the total length of calandria 3, reduced the cross-sectional area that calandria 3 conducts electricity simultaneously, thereby increase the resistance value of calandria 3, and then increase the efficiency of heating surface of calandria.
Simultaneously, lower end between lower end, the second slot 32 and calandria 3 right edge between the first slot 31 and calandria 3 limits, left side arranges respectively through hole, this through hole is used for connecting calandria 3 and changeover portion 2, wherein, changeover portion 2 is one-body molded with link 1, and link 1 can be connected with wire or pass through and be connected with other calandria stacking as connectors such as bearing pins.
Calandria 3 described in the utility model selects the raw material that comprises boron carbide and zirconium diboride to make, and this raw material has larger resistance and mechanical strength, is suitable for as heater material.
Link 1 described in the utility model, changeover portion 2 and securing member 4 select the raw material that comprises graphite, pottery or alloy to make.
The ceramics plate type heater providing according to the utility model, has following beneficial effect:
(1) described ceramics plate type heater overall dimension is little, but effectively heated length is large, and resistance value is large, and the efficiency of heating surface is high;
(2) described ceramics plate type heater can use by individual layer, also can connect the use of rear formation multilayer by stacking, thereby can reach the maximum operating temperature of superhigh temperature resistance furnace, vacuum furnace, atmosphere furnace and sintering furnace etc.;
(3) manufacturing process is simple, by spark machined, comprises that the methods such as the cutting of Precision EDM line, precision EDM can make described ceramics plate type heater, have industrial applicibility;
(4) can to give full play to boron carbide composite ceramic plate type heating body density of material little for described ceramics plate type heater, fusing point is high, the advantage that the efficiency of heating surface is high, can be raised to maximum operating temperature from room temperature in the short period (in as 120 minutes), for example 1900 DEG C;
(5) described ceramics plate type heater can be given full play to other excellent properties of boron carbide composite ceramic plate type heating body material, for example good non-oxidizability, thermal shock resistance, corrosion resistance, and use and all can keep good thermal stability under oxidizing atmosphere, vacuum environment, various inert atmosphere, for example, under oxidizing atmosphere, hot face temperature can reach 2000 DEG C.
Brief description of the drawings
Fig. 1 illustrates that wherein this heater is positioned at the first quartile of XY two-dimensional coordinate system according to the front view of the ceramics plate type heater structure of a kind of preferred implementation of the utility model;
Fig. 2 illustrates according to the vertical view of the ceramics plate type heater structure of a kind of preferred implementation of the utility model;
Fig. 3 illustrates according to the right view of the ceramics plate type heater structure of a kind of preferred implementation of the utility model;
Fig. 4 illustrates according to the stereogram of the ceramics plate type heater structure of a kind of preferred implementation of the utility model.
Drawing reference numeral explanation:
1-link
2-changeover portion
3-calandria
31-the first slot
32-the second slot
33-the 3rd slot
4-securing member
Embodiment
Below by the utility model is elaborated, feature of the present utility model and advantage will become more clear, clear and definite along with these explanations.
Here special word " exemplary " means " as example, embodiment or illustrative ".Here needn't be interpreted as being better than or being better than other embodiment as " exemplary " illustrated any embodiment.Although the various aspects of embodiment shown in the drawings, unless otherwise indicated, needn't draw accompanying drawing in proportion.
The utility model is disclosed is the ceramics plate type heater that a kind of resistance value is large, the efficiency of heating surface is high.
According in a preferred implementation of the present utility model, as shown in Fig. 1～4 (X-direction described in the utility model and Y direction are as shown in fig. 1), a kind of ceramics plate type heater is provided, this heater comprises link 1, changeover portion 2, calandria 3 and securing member 4, wherein
Calandria 3 is tabular, the utility model is not particularly limited the profile of calandria 3, it can be rectangle, square, circle, ellipse, irregular shape or other arbitrary shape, its concrete shape can be determined according to the shape need at the heating position of the heating furnace of required installation, in an embodiment of the present utility model, as shown in Fig. 1～4, it is rectangle.
On this calandria 3, offer successively the first slot 31 and the second slot 32 from bottom to top, and between the first slot 31 and the second slot 32 in opposite direction, offer the 3rd slot 33 from top to bottom, the first slot 31, the degree of depth of the second slot 32 and the 3rd slot 33 equals the thickness of calandria 3, the first slot 31, the length of the second slot 32 and the 3rd slot 33 is less than the length of calandria 3, , above-mentioned slot penetrates calandria 3, make calandria 3 form the heating plate of continuous bend, thereby the overall dimension of calandria 3 is constant keeping, do not increase under the condition of heater total length, increase the total length of calandria 3, reduced the cross-sectional area that calandria 3 conducts electricity simultaneously, because the resistance value of calandria 3 is directly proportional to the total length of calandria 3, the cross-sectional area conducting electricity with calandria 3 is inversely proportional to, therefore, the structure arranging by the utility model, can effectively increase the resistance value of calandria 3, thereby increase the efficiency of heating surface of calandria 3.
Simultaneously, lower end between lower end, the second slot 32 and calandria 3 right edge between the first slot 31 and calandria 3 limits, left side arranges respectively through hole, this through hole is used for connecting calandria 3 and changeover portion 2, wherein, changeover portion 2 is one-body molded with link 1, and link 1 can be connected with wire or pass through and be connected with other calandria stacking as connectors such as bearing pins.
As shown in fig. 1, in XY coordinate system, calandria 3 described in the utility model wide be calandria 3 along the length of side in X-direction, the length of calandria 3 is that calandria 3 is along the length of side in Y direction; The left side of calandria 3 is the negative sense of X-axis, the forward that the right side of calandria 3 is X-axis, and the upper end of calandria 3 is Y-axis forward, the lower end of calandria 3 is Y-axis negative sense.
In further preferred embodiment, as shown in Figure 1, described the first slot 31, the second slot 32 and the 3rd slot 33 equal in length.
In further preferred embodiment, as shown in Figure 1, described the first slot 31, the second slot 31 and the 3rd slot 33 are parallel to each other with one article of limit of calandria 3; The continuous bend tactical rule that calandria 3 is offered form after slot, calandria 3 generates heat more even.
In further preferred implementation, as shown in Figure 1, the length difference of calandria 3 and the first slot 31, the second slot 32 or the 3rd slot 33, the width of the plate forming between adjacent slot, the limit of calandria 3 is identical with the width of the plate that adjacent slot forms, it is more regular, evenly that calandria 3 is offered the continuous bend structure forming after slot, and calandria 3 generates heat more even after energising.
The width of slot be the plate that forms between adjacent slot width 1/5～1/3, if slot width be greater than the plate forming between adjacent slot width 1/3, effectively heating volume is too small for calandria 3, the efficiency of heating surface is low, and causes waste of material, cost increases; If slot width be less than the plate forming between adjacent slot width 1/5, difficulty of processing is large, increase time cost, meanwhile, the cross-sectional area that calandria 3 conducts electricity is large, the efficiency of heating surface is low.
Distance between through hole and calandria 3 lower ends is 1/10～1/6 of calandria 3 length, if through hole and calandria 3 lower end distances are less than 1/10 of calandria 3 length, through hole bad mechanical strength, fragile, brings inconvenience to transport and use; If the distance between through hole and calandria 3 lower ends is greater than 1/6 of calandria 3 length, the effective heated length of calandria diminishes, and the efficiency of heating surface reduces.
Described calandria 3 is made up of the raw material that comprises following weight portion,
60～75 parts of boron carbides,
25～40 parts of zirconium diborides,
Wherein, the purity of boron carbide and zirconium diboride is not less than 98%.
The ceramic material being made by above-mentioned raw materials, density is 3.2～3.9g/cm
3, room temperature tensile strength is 100MPa～200MPa, resistivity is (1.3～3.0) × 10
-5Ω/m, is suitable for as heater material.
The utility model is not particularly limited the manufacture of described calandria, as above-mentioned material made by methods such as hot pressed sintering, discharge plasma sintering and reaction-sintereds.
The utility model is not particularly limited the processing mode of slot, as adopted spark machined, comprises the methods such as the cutting of Precision EDM line, precision EDM.
Link 1 described in the utility model, changeover portion 2 and securing member 4 are made by the raw material that comprises graphite, pottery, alloy and combination thereof.
In the time that this calandria individual layer uses, preferably select graphite, alloy or its combination link processed, changeover portion and securing member, in the time that this calandria stacking uses, preferably select pottery link processed, changeover portion and securing member.
The boron carbide composite ceramic plate type heating device that the utility model provides is individual layer or is formed by multiple individual layer stackings.
When this heater is individual layer, by calandria 3 being connected with changeover portion 2 as connectors such as bearing pins, fastening for strengthening, prevent that link 1 from coming off, can securing member 4 be set in calandria 3 bottoms, wire is connected with link 1, electric current is inputted from the changeover portion 2 of calandria 3 one end, conduct along calandria 3, export from the changeover portion 2 of the other end of calandria 3, and be heat energy by electric energy conversion on calandria 3.
When this heater is that multilayer stacking is while forming,, by individual layer heater being connected in the same way successively as connectors such as bearing pins, wire is connected with the changeover portion 2 of top layer one end and the changeover portion 2 of the bottom other end respectively, electric current is inputted from the changeover portion 2 of top layer calandria one end, along stacking calandria conduction, export from the changeover portion 2 of the bottom other end of calandria 3, and be heat energy by electric energy conversion on calandria 3.
In conjunction with embodiment and exemplary example, the utility model is had been described in detail above, but these explanations can not be interpreted as restriction of the present utility model.It will be appreciated by those skilled in the art that in the situation that not departing from the utility model spirit and scope, can carry out multiple replacement of equal value, modify or improve technical solutions of the utility model and execution mode thereof, these all fall in scope of the present utility model.Protection range of the present utility model is as the criterion with claims.
Claims (10)
1. a boron carbide composite ceramic plate type heating device, is characterized in that, this heater comprises: link (1), changeover portion (2), calandria (3) and securing member (4), wherein,
Calandria (3) is tabular, on this calandria (3), offer successively the first slot (31) and the second slot (32) from bottom to top, and between the first slot (31) and the second slot (32) in opposite direction, offer the 3rd slot (33) from top to bottom, wherein
The degree of depth of described the first slot (31), the second slot (32) and the 3rd slot (33) equals the thickness of calandria (3), that is, it penetrates calandria (3);
The length of the first slot (31), the second slot (32) and the 3rd slot (33) is less than the length of calandria (3);
Lower end between lower end, the second slot (32) and calandria (3) right edge between the first slot (31) and limit, calandria (3) left side arranges respectively through hole,
Link (1) is one-body molded with changeover portion (2), and wherein, changeover portion (2) is connected with calandria (3).
2. heater according to claim 1, is characterized in that, changeover portion (2) is connected with calandria (3) by bearing pin.
3. heater according to claim 1, is characterized in that, link (1) is connected with wire or with other calandria.
4. heater according to claim 1, is characterized in that, the first slot (31), the second slot (32) and the 3rd slot (33) equal in length.
5. heater according to claim 1, is characterized in that, the first slot (31), the second slot (32) and the 3rd slot (33) are parallel to each other.
6. heater according to claim 1, is characterized in that, the profile of calandria (3) is rectangle, square, circle, ellipse or irregular shape.
7. according to the heater one of claim 1～6 Suo Shu, it is characterized in that, the length difference of calandria (3) and the first slot (31), the second slot (32) or the 3rd slot (33), the width of the plate forming between adjacent slot, the limit of calandria (3) is identical with the width of the plate that adjacent slot forms.
8. according to the heater one of claim 1～6 Suo Shu, it is characterized in that, the width of slot be the plate that forms between adjacent slot width 1/5～1/3.
9. according to the heater one of claim 1～6 Suo Shu, it is characterized in that, the distance of through hole and calandria (3) lower end is 1/10～1/6 of calandria (3) length.
10. according to the heater one of claim 1～6 Suo Shu, it is characterized in that, described heater is individual layer or is formed by multiple individual layer stackings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357751.4U CN203968405U (en) | 2014-06-30 | 2014-06-30 | A kind of boron carbide composite ceramic plate type heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357751.4U CN203968405U (en) | 2014-06-30 | 2014-06-30 | A kind of boron carbide composite ceramic plate type heating device |
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| Publication Number | Publication Date |
|---|---|
| CN203968405U true CN203968405U (en) | 2014-11-26 |
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ID=51928942
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420357751.4U Expired - Fee Related CN203968405U (en) | 2014-06-30 | 2014-06-30 | A kind of boron carbide composite ceramic plate type heating device |
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| CN (1) | CN203968405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470002A (en) * | 2014-11-15 | 2015-03-25 | 北京星航机电装备有限公司 | Ceramic heating device |
-
2014
- 2014-06-30 CN CN201420357751.4U patent/CN203968405U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470002A (en) * | 2014-11-15 | 2015-03-25 | 北京星航机电装备有限公司 | Ceramic heating device |
| CN104470002B (en) * | 2014-11-15 | 2016-08-17 | 北京星航机电装备有限公司 | A kind of ceramic heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210426 Address after: 116000 room 813, free trade building, Dalian Free Trade Zone, Dalian City, Liaoning Province Patentee after: China boron Technology (Dalian) Co.,Ltd. Address before: 157009 No.368 Daqing street, Aimin District, Mudanjiang City, Heilongjiang Province Patentee before: MUDANJIANG JINGANGZUAN BORON CARBIDE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20210630 |