CN205376467U - Alumina ceramic electric arc tube structure - Google Patents
Alumina ceramic electric arc tube structure Download PDFInfo
- Publication number
- CN205376467U CN205376467U CN201620153408.7U CN201620153408U CN205376467U CN 205376467 U CN205376467 U CN 205376467U CN 201620153408 U CN201620153408 U CN 201620153408U CN 205376467 U CN205376467 U CN 205376467U
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- China
- Prior art keywords
- tube
- arc tube
- outer tube
- tubule
- electric arc
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Abstract
The utility model relates to an alumina ceramic electric arc tube structure, including electric arc tube body, and with the first tubule and the second tubule of this body coupling of electricity arc tube, first thin bore of pipe with the inner chamber intercommunication of electricity arc tube body, the thin bore of pipe of second with the inner chamber intercommunication of electricity arc tube body, electricity arc tube body is including outer pipe and inlayer pipe, the inner wall of outer pipe with the surface laminating of inlayer pipe. The design of inlayer pipe and outer tubular construction is passed through in this application, and specific metal directional solidification 's holding time reduces for the metal melt and the chemical reaction times on alumina ceramics's surface reduce. And pass through to use the structure of inlayer pipe, through the ratio of improving the inlayer tube material, reduced the probability that surface chemical reaction was managed to specific metal and inlayer, improved alumina ceramic electric arc tube's performance.
Description
Technical field
This utility model belongs to metal halid lamp electric arc tube, particularly relates to a kind of aluminium oxide ceramics electric arc tube structure.
Background technology
The semitransparent ceramics of employing polycrystal alumina has operating temperature height as the metal halid lamp of arctube material, and light efficiency is high, and light decay is little, and develop the color the advantages such as good and life-span length.
Current ceramic metal halide lamp electric arc tube mainly adopts translucent alumina ceramics manufacture, the shape of electric arc tube mainly has cylinder, cylinder is combined with circular cone, elliposoidal, but existing these kind of type is processing technique complexity and not easily processes, and need during fabrication to add forming agent, improve production cost.
On the other hand, ceramic arc tube maximum operation (service) temperature can more than 2000 degree, the directional solidification that can meet common metal and alloy uses, but when some high activity metals are solidified, it is easy to produce at molten metal contacts interface a pollution layer, under directional solidification high temperature, particularly crosses long-time heat preservation, more exacerbate the chemical reaction between melt and earthenware, it is primarily due in melt and incorporates substantial amounts of oxide inclusions, affect the overall performance of earthenware.
Utility model content
The purpose of this utility model is that the aluminium oxide ceramics electric arc tube to existing structure proposes improvement opportunity scheme, by the technical program, while not improving processing technique complexity, reduces the chemical reaction between molten metal melt and aluminium oxide ceramics arc tube surface.
This utility model is achieved through the following technical solutions:
A kind of aluminium oxide ceramics electric arc tube structure, including arc tube body, and the first tubule being connected with described arc tube body and the second tubule；
The internal diameter of described first tubule and the inner space of described arc tube body；The internal diameter of described second tubule and the inner space of described arc tube body；
Described arc tube body includes outer tube and inner tube；The outer surface of the inwall of described outer tube and described inner tube is fitted.
Described outer tube includes the first outer tube and the second outer tube；The axial cross section of described first outer tube is U-shaped；The axial cross section of described second outer tube is U-shaped；One end of closely described second outer tube of described first outer tube is provided with First stepped structure；One end of closely described first outer tube of described second outer tube is provided with second step shape structure；The section tubular wall of described outer tube is formed after described First stepped structure and described second step shape respective outer side edges.
The wall thickness of described outer tube is more than the wall thickness of described inner tube.
Described inner tube includes the first inner tube and the second inner tube；The axial cross section of described first inner tube is U-shaped；The axial cross section of described second inner tube is U-shaped；One end of closely described second inner tube of described first inner tube is provided with the 3rd step-like structure；One end of closely described first inner tube of described second inner tube is provided with the 4th step-like structure；Described 3rd step-like structure forms the section tubular wall of described inner tube with described 4th step-like structure after coordinating.
Described first tubule is all identical with the size of described second tubule, shape and structure.
The wall thickness of described first tubule is less than the wall thickness of described outer tube.
The beneficial effects of the utility model are:
The application is by the design of inner tube and outer tube structure, and the temperature retention time of special metal directional solidification reduces so that the chemical time on the surface of metal bath and aluminium oxide ceramics reduces.And by using the structure of inner tube, by improving the proportioning of inner tube material, decrease the probability of special metal and inner tube surface chemical reaction, improve the performance of aluminium oxide ceramics electric arc tube.
Accompanying drawing explanation
Fig. 1 is this utility model aluminium oxide ceramics electric arc tube structural representation；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the B place enlarged drawing of Fig. 1；
Fig. 4 is the C place enlarged drawing of Fig. 1.
Description of reference numerals
1 arc tube body, 2 first tubules, 3 second tubules, 11 outer tube, 12 inner tube, 111 first outer tube, 112 second outer tube, 121 first inner tube, 122 second inner tube, 1112 First stepped structure, 1121 second step shape structures, 1211 the 3rd step-like structures, 1221 the 4th step-like structures.
Detailed description of the invention
Describing the technical solution of the utility model by the following examples in detail, below example is merely illustrative of, and is only capable of for explaining and illustrate the technical solution of the utility model, and is not to be construed as the restriction to technical solutions of the utility model.
Embodiment 1
This utility model provides a kind of aluminium oxide ceramics electric arc tube structure, as it is shown in figure 1, include arc tube body 1, and the first tubule 2 and the second tubule 3 being connected with described arc tube body 1；In this application, the shape of arc tube body 1 is fixed as desired, it is possible to for cylinder, cylinder and circular cone combination shape, elliposoidal etc..
The internal diameter of described first tubule 2 and the inner space of described arc tube body 1；The internal diameter of described second tubule 3 and the inner space of described arc tube body 1.
Described arc tube body includes outer tube and inner tube；The outer surface of the inwall of described outer tube and described inner tube is fitted.The wall thickness of described outer tube is more than the wall thickness of described inner tube.
Described outer tube includes the first outer tube and the second outer tube；The axial cross section of described first outer tube is U-shaped；The axial cross section of described second outer tube is U-shaped；One end of closely described second outer tube of described first outer tube is provided with First stepped structure；One end of closely described first outer tube of described second outer tube is provided with second step shape structure；The section tubular wall of described outer tube is formed after described First stepped structure and described second step shape respective outer side edges.Aluminium oxide ceramics electric arc tube in the application at least belongs to four built up structures, in this application, the first outer tube coordinates with the second outer tube and forms outer tube structure.
Described first tubule 2 is all identical with the size of described second tubule 3, shape and structure.
The wall thickness of described first tubule is less than the wall thickness of described outer tube.
The production technology of the application is, outer tube slurry is added in casting machine, gypsum mold is arranged on fixture, regulates plasma discharge amount, after filling outer layer slurry in die cavity, stand a period of time, then gypsum mold it is inverted, being got rid of by remaining slurry, the demoulding obtains the first outer tube green compact and first tubule of outer tube, according to same mode, prepare the second outer tube green compact and the second tubule, then pass through prepared outer tube after dry, sintering, ultrasonic cleaning, baking oven high temperature drying；Inner tube adopts filling forming method preparation at the inwall of outer tube.
Embodiment 2
This utility model provides a kind of aluminium oxide ceramics electric arc tube structure, as shown in Figures 1 to 4, including arc tube body 1, and the first tubule 2 and the second tubule 3 being connected with described arc tube body 1；In this application, the shape of arc tube body 1 is fixed as desired, it is possible to for cylinder, cylinder and circular cone combination shape, elliposoidal etc..
The internal diameter of described first tubule 2 and the inner space of described arc tube body 1；The internal diameter of described second tubule 3 and the inner space of described arc tube body 1.
Described arc tube body 1 includes outer tube 11 and inner tube 12；The outer surface of the inwall of described outer tube 11 and described inner tube 12 is fitted.The wall thickness of described outer tube 11 is more than the wall thickness of described inner tube 12.
Described outer tube 11 includes the first outer tube 111 and the second outer tube 112；The axial cross section of described first outer tube 111 is U-shaped；The axial cross section of described second outer tube 112 is U-shaped；One end of closely described second outer tube 112 of described first outer tube 111 is provided with First stepped structure 1112；One end of closely described first outer tube 111 of described second outer tube 112 is provided with second step shape structure 1121；Described First stepped structure 1112 forms the section tubular wall of described outer tube 11 with described second step shape structure 1121 after coordinating.Aluminium oxide ceramics electric arc tube in the application at least belongs to four built up structures, in this application, the first outer tube 111 coordinates with the second outer tube 112 and forms outer tube structure.
Described first tubule 2 is all identical with the size of described second tubule 3, shape and structure.
The wall thickness of described first tubule 2 is less than the wall thickness of described outer tube 11.
Described inner tube 12 includes the first inner tube 121 and the second inner tube 122；The axial cross section of described first inner tube 121 is U-shaped；The axial cross section of described second inner tube 122 is U-shaped；One end of closely described second inner tube 122 of described first inner tube 121 is provided with the 3rd step-like structure 1211；One end of closely described first inner tube 121 of described second inner tube 122 is provided with the 4th step-like structure 1221；Described 3rd step-like structure 1211 forms the section tubular wall of described inner tube with described 4th step-like structure 1221 after coordinating.
The production technology of the application is, outer tube slurry is added in casting machine, gypsum mold is arranged on fixture, regulates plasma discharge amount, after filling outer layer slurry in die cavity, stand a period of time, then gypsum mold it is inverted, being got rid of by remaining slurry, the demoulding obtains the first outer tube green compact and first tubule of outer tube, according to same mode, prepare the second outer tube green compact and the second tubule, then pass through prepared outer tube after dry, sintering, ultrasonic cleaning, baking oven high temperature drying；Inner tube adopts filling forming method preparation in inwall first inner tube of the first outer tube, and the inwall in the second outer tube is the second inner tube.
The key technical indexes of electric arc tube: heat stability meets the requirements, rupture strength >=210 σ/MPa, bulk density >=2.9g/cm3, water absorption rate 0%, thermal coefficient of expansion≤8 × 10-6L/ DEG C, average particle crystalline substance 10-15um.
The technical solution of the utility model is described although detailed, but it is to be understood that, those skilled in the art, by means changes to technical scheme such as conventional deformation, improvement, replacements, all should work as within the protection domain belonging to the application.
Claims (6)
1. an aluminium oxide ceramics electric arc tube structure, it is characterised in that: include arc tube body, and the first tubule being connected with described arc tube body and the second tubule；
The internal diameter of described first tubule and the inner space of described arc tube body；The internal diameter of described second tubule and the inner space of described arc tube body；
Described arc tube body includes outer tube and inner tube；The outer surface of the inwall of described outer tube and described inner tube is fitted.
2. aluminium oxide ceramics electric arc tube structure according to claim 1, it is characterised in that: described outer tube includes the first outer tube and the second outer tube；The axial cross section of described first outer tube is U-shaped；The axial cross section of described second outer tube is U-shaped；One end of closely described second outer tube of described first outer tube is provided with First stepped structure；One end of closely described first outer tube of described second outer tube is provided with second step shape structure；The section tubular wall of described outer tube is formed after described First stepped structure and described second step shape respective outer side edges.
3. aluminium oxide ceramics electric arc tube structure according to claim 1, it is characterised in that: the wall thickness of described outer tube is more than the wall thickness of described inner tube.
4. aluminium oxide ceramics electric arc tube structure according to claim 3, it is characterised in that: described inner tube includes the first inner tube and the second inner tube；The axial cross section of described first inner tube is U-shaped；The axial cross section of described second inner tube is U-shaped；One end of closely described second inner tube of described first inner tube is provided with the 3rd step-like structure；One end of closely described first inner tube of described second inner tube is provided with the 4th step-like structure；Described 3rd step-like structure forms the section tubular wall of described inner tube with described 4th step-like structure after coordinating.
5. aluminium oxide ceramics electric arc tube structure according to claim 1, it is characterised in that: described first tubule is all identical with the size of described second tubule, shape and structure.
6. aluminium oxide ceramics electric arc tube structure according to claim 5, it is characterised in that: the wall thickness of described first tubule is less than the wall thickness of described outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153408.7U CN205376467U (en) | 2016-02-29 | 2016-02-29 | Alumina ceramic electric arc tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153408.7U CN205376467U (en) | 2016-02-29 | 2016-02-29 | Alumina ceramic electric arc tube structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205376467U true CN205376467U (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620153408.7U Expired - Fee Related CN205376467U (en) | 2016-02-29 | 2016-02-29 | Alumina ceramic electric arc tube structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205376467U (en) |
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2016
- 2016-02-29 CN CN201620153408.7U patent/CN205376467U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160706 Termination date: 20210228 |