CN109734426A - Dielectric ceramic material - Google Patents
Dielectric ceramic material Download PDFInfo
- Publication number
- CN109734426A CN109734426A CN201910221932.1A CN201910221932A CN109734426A CN 109734426 A CN109734426 A CN 109734426A CN 201910221932 A CN201910221932 A CN 201910221932A CN 109734426 A CN109734426 A CN 109734426A
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- China
- Prior art keywords
- spark plug
- discharge
- ceramic material
- sparking
- temperature
- 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.)
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Links
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract 4
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Spark Plugs (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
The present invention relates to technical field of ceramic material, especially a kind of dielectric ceramic material for automobile spark plug sparking.The material is sintered at a temperature of 1700-2000 degree by following raw material by mass percentage, the Al including 70.0-80.0%2O3, 4-6%MgO, 6-9% Fe2O3, 1-2% WC, 1.5-3% BN, 5-8%CuO, 4-6% Cr2O3, 2-3% ZrO3、CeO36-8%, 0.5-1% ZnO.The present invention has discharge in insulation performance, and for discharge breakdown sparking between automobile spark plug positive and negative electrode, spark temperature is high, and igniting is punctual reliable, can catch fire fire, increases power, reduces noise, the discharge of tail gas is reduced, it is energy-saving and environment-friendly, it is able to extend the service life of spark plug.
Description
Technical field
The present invention relates to technical field of ceramic material, especially a kind of dielectric ceramics material for automobile spark plug sparking
Material.
Background technique
Existing automobile spark plug includes the center positive electrode core made of copper alloy, is set with outside center positive electrode core absolutely
Edge ceramic protective sleeve is set with the shell made of ferroalloy materials outside insulating ceramics protective case, is provided on shell and center
The negative electrode hook of positive electricity pole piece cooperation sparking, has certain gap, by positive and negative between negative electrode hook and center positive electrode core
Polar conductor inputs high voltage power supply, discharge breakdown, and the mixed gas of strike sparks ignition engine cylinder intracorporal gasoline and air makes its machine
Tool acting, band electrical automobile overall operation, but negative electrode hook tip only one put upper discharge breakdown sparking, while sparking
Poly- carbon can be slowly generated among positive and negative electrode, the time, more long poly- carbon was more, and poly- carbon increases thickness, and firing temperature also can slowly subtract
It is low, there will be individual strokes to misfire in IC engine cylinder body, not do work, make oil, air gas mixture discharge, increase blowdown flow rate,
Reduce power, noise increases accordingly, and carbon distribution increases to a certain amount of, burns out negative electrode hook, negative electrode during discharging sparking
Hook, which is burned, causes entire spark plug to be scrapped, and service life is short, and automobile is caused to be frequently necessary to replacement spark in maintenance
Plug, currently, realizing that disruptive discharge is struck sparks using dielectric substance between the positive and negative electrode of automobile spark plug, thus alternatively electric
Pole metal hook structure is the current main developing direction of spark plug production industry, and dielectric ceramics high mechanical strength, is not easy old
Change, have the advantages that high pressure resistant, high temperature resistant, chemical stability are good, electromechanical properties are good, which are mainly applied to production capacitor, tools
There is high dielectric constant, temperature coefficient can adjust in a wider range, and dielectric loss is low, and it is especially more superior in high frequency, such as
What makes a kind of dielectric ceramic material suitable for doing Dielectric Disruptive Discharge sparking between spark plug positive and negative electrode, to improve
Spark plug sparking temperature, increases sparking spark, improves duration of ignition accuracy, and increasing power of IC engine is urgently to be resolved at present
The problem of.
Summary of the invention
Present invention seek to address that the above problem, strikes sparks for automobile spark plug to provide one kind and can be improved raising
Spark plug sparking temperature, increases sparking spark, improves duration of ignition accuracy, the dielectric ceramics material of increasing power of IC engine
Material.
The present invention solves described problem, the technical solution adopted is that:
A kind of dielectric ceramic material, the material are burnt at a temperature of 1700-2000 degree by following raw material by mass percentage
It ties, the Al including 70.0-80.0%2O3, 4-6%MgO, 6-9% Fe2O3, 1-2% WC, 1.5-3% BN, 5-8%CuO,
The Cr of 4-6%2O3, 2-3% ZrO3、CeO36-8%, 0.5-1% ZnO.
The present invention by adopting the above technical scheme, compared with prior art, the feature protruded is:
With discharge in insulation performance, for discharge breakdown sparking between automobile spark plug positive and negative electrode, spark temperature is high, and igniting is quasi-
When it is reliable, can catch fire fire, increase power, reduce noise, reduce the discharge of tail gas, it is energy-saving and environment-friendly, be able to extend fire
The service life of Hua Sai.
Specific embodiment:
Below with reference to embodiment, the invention will be further described, and purpose, which is only that, more fully understands the content of present invention, therefore, institute
The example of act is not intended to limit protection scope of the present invention.
A kind of dielectric ceramic material, the material is by following raw material by mass percentage in 1700-2000 degree temperature
Under be sintered, the Al including 70.0-80.0%2O3, 4-6%MgO, 6-9% Fe2O3, 1-2% WC, 1.5-3% BN, 5-8%
The Cr of CuO, 4-6%2O3, 2-3% ZrO3、CeO36-8%, 0.5-1% ZnO.
Dielectric ceramic material of the present invention not only insulated but also discharged, for putting between automobile spark plug positive and negative electrode as medium
Electrical breakdown sparking, spark temperature is high, and igniting is punctual reliable, and can catch fire fire, increases power, and increasing power of IC engine reduces
Noise reduces the discharge of tail gas, energy-saving and environment-friendly, is able to extend the service life of spark plug, and the present invention can also do coating
With such as on the high insulating ceramics element surface of Industry, one layer of certain thickness ceramic material of the present invention of painting is carrying out high temperature
It is the same, i.e. insulation electric discharge again using function after sintering.
The foregoing is merely preferably feasible embodiment of the invention, not thereby limiting the scope of the invention,
It is all to use equivalence changes made by present specification, it is intended to be included within the scope of the present invention.
Claims (1)
1. a kind of dielectric ceramic material, it is characterised in that: the material is by following raw material by mass percentage in 1700-
It is sintered at a temperature of 2000 degree, the Al including 70.0-80.0%2O3, 4-6%MgO, 6-9% Fe2O3, 1-2% WC, 1.5-3%
BN, 5-8%CuO, 4-6% Cr2O3, 2-3% ZrO3、CeO36-8%, 0.5-1% ZnO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221932.1A CN109734426A (en) | 2019-03-22 | 2019-03-22 | Dielectric ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221932.1A CN109734426A (en) | 2019-03-22 | 2019-03-22 | Dielectric ceramic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109734426A true CN109734426A (en) | 2019-05-10 |
Family
ID=66371165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910221932.1A Pending CN109734426A (en) | 2019-03-22 | 2019-03-22 | Dielectric ceramic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109734426A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3546369A (en) * | 1970-01-16 | 1970-12-08 | Nippon Denso Co | Spark plug having composite insulator |
| CN1256806A (en) * | 1998-02-27 | 2000-06-14 | 日本特殊陶业株式会社 | Spark plug, alumina insulator for spark plug, and method of manufacturing the same |
| CN101604820A (en) * | 2008-06-12 | 2009-12-16 | 日本特殊陶业株式会社 | Spark plug |
| CN102934515A (en) * | 2010-07-30 | 2013-02-13 | 京瓷株式会社 | Heater and glow plug provided with same |
| CN103270658A (en) * | 2010-12-06 | 2013-08-28 | 弗拉明集团知识产权有限责任公司 | Anti-pollution spark plug and method of making |
-
2019
- 2019-03-22 CN CN201910221932.1A patent/CN109734426A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3546369A (en) * | 1970-01-16 | 1970-12-08 | Nippon Denso Co | Spark plug having composite insulator |
| CN1256806A (en) * | 1998-02-27 | 2000-06-14 | 日本特殊陶业株式会社 | Spark plug, alumina insulator for spark plug, and method of manufacturing the same |
| CN101604820A (en) * | 2008-06-12 | 2009-12-16 | 日本特殊陶业株式会社 | Spark plug |
| CN102934515A (en) * | 2010-07-30 | 2013-02-13 | 京瓷株式会社 | Heater and glow plug provided with same |
| CN103270658A (en) * | 2010-12-06 | 2013-08-28 | 弗拉明集团知识产权有限责任公司 | Anti-pollution spark plug and method of making |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |
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| RJ01 | Rejection of invention patent application after publication |