CN200997691Y - Ceramic electric heating pipe - Google Patents
Ceramic electric heating pipe Download PDFInfo
- Publication number
- CN200997691Y CN200997691Y CN 200720006141 CN200720006141U CN200997691Y CN 200997691 Y CN200997691 Y CN 200997691Y CN 200720006141 CN200720006141 CN 200720006141 CN 200720006141 U CN200720006141 U CN 200720006141U CN 200997691 Y CN200997691 Y CN 200997691Y
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- CN
- China
- Prior art keywords
- high temperature
- layer
- aluminium oxide
- temperature resistance
- material layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Compositions Of Oxide Ceramics (AREA)
- Resistance Heating (AREA)
Abstract
A porcelain electric heating pipe is a short straight pipe, and is composed of two electrode leads (7), and is provided with an alumina ceramics layer (1), a high-temperature resistance material layer (3) and a alumina ceramics layer (5) from internal to external, and all layers are fixed as a whole through more 1600 degrees of high temperature sintering; The high-temperature resistance material layer (3) comprises the alive circuit, of which the two ends are connected with the two electrode leads (7).
Description
Technical field
The utility model relates to a kind of ceramic electrical heating tube, and it is a matrix with the alumina ceramic material, is applied to the heating of liquid such as water.
Background technology
At present, the main heating tube of extensive use electric heating electrical equipment has two kinds of immerging metal tube heater and ceramic heat pipes.Immerging metal tube heater has that volume is big, heating efficiency is low, is unfavorable for the electrical equipment miniaturization, and shell adopts metal material simultaneously, and poor insulativity is unfavorable for the safe in utilization of electrical equipment.The ceramic heat pipe extensively is subjected to people's welcome owing to have characteristics such as good insulating, heat efficiency height, unit are heating power are big, safe in utilization.
Existing ceramic electrical heating tube is a short straight tube, has two contact conductors, mainly contains two kinds of structures: the one, on the inwall of earthenware, apply the electric conducting material that one deck is used to produce heat.There is processing difficulties in this structure, and heating layer is inhomogeneous, and it is inhomogeneous to cause earthenware to be heated, and many shortcomings such as bursts, useful life is short thereby be easy to generate.The 2nd, apply the electric conducting material that one deck is used to produce heat at the earthenware outer surface, and apply the thin low-temperature insulation medium of one deck again through 1300 ℃ of left and right sides thermal sinterings at the electric conducting material laminar surface.The resistance to pressure and the insulating properties of this constructed products outer surface are relatively poor, and by the heating of a period of time, because the material of its insulating barrier and earthenware is different, coefficient of expansion difference is easy to generate crackle.The final oxidation that causes zone of heating easily influence life of product, security of products liquid such as (particularly be used in) water reduction greatly simultaneously.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point of the prior art, and a kind of reliability height, the life-span is long, fail safe is good ceramic electrical heating tube are provided.
The purpose of this utility model can reach like this: a kind of ceramic electrical heating tube, and it is a short straight tube, has two contact conductors, it is characterized in that from inside to outside being respectively aluminium oxide ceramics layer, high temperature resistance material layer, aluminium oxide ceramics layer; Each layer is fixed into one through high temperature sintering more than 1600 ℃; The high temperature resistance material layer includes the circuit that electric current passes through, and the circuit two ends are connected with two contact conductors respectively.
The aluminium oxide ceramics main component is aluminium oxide and silica.Its intensity is big, hardness is high, corrosion-resistant, good insulating, and heat resisting temperature can reach 1400 degrees centigrade, has outstanding high-temperature behavior and dielectric property.
The utlity model has following advantage:
1, Fa Re resistance slurry adopts materials such as resistant to elevated temperatures tungsten and molybdenum, so the serviceability temperature of this ceramic heat pipe is higher.
2, because mode of heating is the heating of pottery inside, and the inside and outside of earthenware can obtain heating simultaneously, the heat efficiency is higher.
3,, and, be not prone to phenomenons such as cracking during use, the life-span and the fail safe that have improved product because its inside and outside material is identical or approaching because the both sides of zone of heating are thicker aluminium oxide ceramics, and its proof voltage intensity is higher.
4, since heating tube through the high temperature sintering more than 1600 ℃, surfacing all is again an alumina material, so its integral body is fine and close, water absorption rate is less than 0.01%, non-oxidizability, resistance to acids and bases is good.
Description of drawings
Accompanying drawing is the utility model structural representation
1 is the aluminium oxide ceramics layer among the figure, the 3rd, and high temperature resistance material layer, the 5th, aluminium oxide ceramics layer, the 7th, contact conductor
Embodiment
The utility model is further described below in conjunction with accompanying drawing.A kind of ceramic electrical heating tube, it is a short straight tube, have two contact conductors (7), it is characterized in that from inside to outside being respectively aluminium oxide ceramics layer (1), high temperature resistance material layer (3), aluminium oxide ceramics layer (5), each layer is fixed into one through high temperature sintering more than 1600 ℃; High temperature resistance material layer (3) includes the circuit that electric current passes through, and the circuit two ends are connected with two contact conductors (7) respectively.
Manufacturing process of the present utility model is: two of aluminium oxide green diaphragm punching out energising guide hole and in the hole filled high-temperature resistance slurry, simultaneously print one deck high temperature resistance slurry circuit at diaphragm then, another side prints the blockage conductive layer that welding electrode is used on guide hole, again the monoblock diaphragm is wrapped in the outer surface that alumina ceramic tube is not shunk in green or pre-burning, makes of the outer surface contact of the circuit of diaphragm with pipe.After pressurization and can form the utility model heating tube by hydrogen reducing atmosphere sintering furnace high temperature sintering more than 1600 ℃.Aluminium oxide green diaphragm promptly becomes aluminium oxide ceramics layer of the present utility model (5) behind sintering.And be high temperature resistance material layer of the present utility model (3) after being printed on the high temperature resistance slurry line layer sintering of aluminium oxide green membrane surface.Be exactly that high temperature resistance material layer (3) includes the circuit that electric current passes through behind the high temperature resistance slurry circuit sintering.Green or pre-burning are not aluminium oxide ceramics layer of the present utility model (1) after shrinking the alumina ceramic tube sintering.To weld mutually with blockage conductive in two energising guide holes respectively as two metal lead wires of contact conductor (7) usefulness at last.
The high temperature resistance slurry, is added an amount of phenolic resin adhesive again and stirs and be made with the mixing in 70%: 30% by weight percentage of alumina medium material by metal tungsten powder or molybdenum powder.This slurry has viscosity, and the character of conduction has certain density, is suitable for printed wire.
The main content (as: aluminium oxide) of aluminium oxide green diaphragm and alumina ceramic tube should be identical or approaching, the shrinkage unanimity during high temperature sintering like this, and associativity is good.In use, because the ectonexine material of the thermal treatment zone is identical or approaching, thermal coefficient of expansion is identical, the phenomenon that can occur ftractureing not, the useful life of so just having improved product.
Claims (1)
1, a kind of ceramic electrical heating tube, it is a short straight tube, have two contact conductors (7), it is characterized in that from inside to outside being respectively aluminium oxide ceramics layer (1), high temperature resistance material layer (3), aluminium oxide ceramics layer (5), each layer is fixed into one through high temperature sintering more than 1600 ℃; High temperature resistance material layer (3) includes the circuit that electric current passes through, and the circuit two ends are connected with two contact conductors (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720006141 CN200997691Y (en) | 2007-01-19 | 2007-01-19 | Ceramic electric heating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720006141 CN200997691Y (en) | 2007-01-19 | 2007-01-19 | Ceramic electric heating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200997691Y true CN200997691Y (en) | 2007-12-26 |
Family
ID=38996125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720006141 Expired - Fee Related CN200997691Y (en) | 2007-01-19 | 2007-01-19 | Ceramic electric heating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200997691Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185320A (en) * | 2014-08-14 | 2014-12-03 | 厦门格睿伟业电子科技有限公司 | Heating rod for ceramic igniter and manufacturing technology thereof |
| CN105365037A (en) * | 2015-12-03 | 2016-03-02 | 安徽省巢湖铸造厂有限责任公司 | Ceramic heating pipe for elastic strip blank |
| CN112081315A (en) * | 2020-10-14 | 2020-12-15 | 安邦电气股份有限公司 | Roof snow melting heat tracing band |
| CN113026718A (en) * | 2021-03-09 | 2021-06-25 | 浙江中正岩土技术有限公司 | Method for reinforcing soft soil at high temperature |
| CN113945106A (en) * | 2021-11-30 | 2022-01-18 | 北京工大环能科技有限公司 | High-voltage molten salt heater |
-
2007
- 2007-01-19 CN CN 200720006141 patent/CN200997691Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185320A (en) * | 2014-08-14 | 2014-12-03 | 厦门格睿伟业电子科技有限公司 | Heating rod for ceramic igniter and manufacturing technology thereof |
| CN104185320B (en) * | 2014-08-14 | 2015-12-09 | 厦门格睿伟业电子科技有限公司 | A kind of ceramic igniter heating rod used and manufacture craft thereof |
| CN105365037A (en) * | 2015-12-03 | 2016-03-02 | 安徽省巢湖铸造厂有限责任公司 | Ceramic heating pipe for elastic strip blank |
| CN112081315A (en) * | 2020-10-14 | 2020-12-15 | 安邦电气股份有限公司 | Roof snow melting heat tracing band |
| CN113026718A (en) * | 2021-03-09 | 2021-06-25 | 浙江中正岩土技术有限公司 | Method for reinforcing soft soil at high temperature |
| CN113945106A (en) * | 2021-11-30 | 2022-01-18 | 北京工大环能科技有限公司 | High-voltage molten salt heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: OU HUALING ZHAO JIE JIANG HUA ^ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Ou Hualing|Zhao Jie|Jiang Hua Number: 52 Page: The title page Volume: 23 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Ou Hualing|Zhao Jie|Jiang Hua Number: 52 Volume: 23 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ^ TO: OU HUALING ZHAO JIE JIANG HUA ^ |
|
| DD01 | Delivery of document by public notice |
Addressee: Shi Rong Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Shi Rong Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 Termination date: 20120119 |