CN1288109C - Metallized ceramic for microwave megnetron and it production method - Google Patents
Metallized ceramic for microwave megnetron and it production method Download PDFInfo
- Publication number
- CN1288109C CN1288109C CN 200510040499 CN200510040499A CN1288109C CN 1288109 C CN1288109 C CN 1288109C CN 200510040499 CN200510040499 CN 200510040499 CN 200510040499 A CN200510040499 A CN 200510040499A CN 1288109 C CN1288109 C CN 1288109C
- Authority
- CN
- China
- Prior art keywords
- sintering
- powder
- agent
- parts
- ceramic pipe
- 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
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention discloses a metallized ceramic for a microwave magnetron and the production method thereof. The metallized ceramic for a microwave magnetron is made of alumina, calcium carbonate, silicon oxide, kaolin, talcum powder, binding agent, parting agent, dispersant, defoaming agent, etc. and is prepared by ball milling, forming, sintering, silk screen printing, metalization processing, nickel plating, etc. The metallized ceramic for a microwave magnetron has the advantages of good quality, high yield and low production cost. The metallized ceramic for a microwave magnetron can be arranged on a magnetron for a microwave oven to generate microwave or support the magnetron.
Description
(1) technical field
The present invention relates to a kind of metallized ceramic and production method thereof.Be specifically in the microwave oven on the magnetron, be used for producing microwave or support the metallized ceramic and the production method thereof of porcelain keyholed back plate.
(2) background technology
At present, metallized ceramic pipe used on the microwave magnetron is mainly made by raw materials such as aluminium sesquioxide, lime carbonate, silicon oxide, kaolin and talcum powder, does not have the agent of pin foam in its raw material.Can produce foam in mechanical milling process, make that the granulated powders size distribution of producing is inhomogeneous, out-of-shape, flowability is poor, utilization ratio is low (having only 30～40%), not only production efficiency is low, and production cost is also high.
Because its production method mainly contains steps such as raw material ball milling, compacting, sintering, metallization and nickel plating.Raw material ball milling wherein is manual operations, discontinuity production basically, makes the powder particle make thick, mobile poor, thereby can cause that ceramic form pore after the moulding is more, resistance to air loss is relatively poor.And compacting is to adopt hot die-casting molding technology, makes that base substrate is yielding, yield rate is low, production cost is higher.Because sintering also is to adopt manual operations, periodic kiln to burn till, not only production efficiency is extremely low, and the time of each warm area be difficult to hold, the quality of product can differently because of operator's spirit, physical appearance have than big-difference; In addition,, adopt the NISO4 electroplate liquid, make that sedimentation speed is slow, coating is not fine and close because nickel plating also is to rely on production line hand-manipulated.
(3) summary of the invention
The technical problem to be solved in the present invention provides a kind of microwave magnetron metallized ceramic.This microwave magnetron metallized ceramic, quality is good, yield rate is high, production cost is low.
Another object of the present invention provides the production method of a kind of microwave magnetron with metallized ceramic.
For addressing the above problem, the present invention takes following technical scheme:
Microwave magnetron metallized ceramic of the present invention is characterized in containing the raw material of following parts by weight: 88～96 parts of aluminium sesquioxides; 2～3 parts in lime carbonate; 1～2 part of silicon oxide; 3～5 parts of kaolin; 1.5～2.5 parts of talcum powder; 5～9 parts of wedding agents; 1～2 part of parting agent; 1～3 part of dispersion agent; 1～2 part of foam killer.Wedding agent wherein, parting agent, dispersion agent and foam killer are respectively polyvinyl alcohol, stearate, sodium polyacrylate and trevira.
Produce the method for microwave magnetron, may further comprise the steps successively with metallized ceramic:
(1) ball milling
Earlier aluminium sesquioxide, lime carbonate, silicon oxide, kaolin, talcum powder, wedding agent, parting agent, dispersion agent and foam killer are poured in the ball mill, and add the deionized water of 85～95 weight parts, be ground into median size less than 3 microns pasty slurry with 30～40 rev/mins rotating speeds; With spray-drier pasty slurry being processed into median size again is 50～80 microns granulated powders, stand-by;
(2) moulding
With stamping machine above-mentioned granulated powders is dropped in the mould, with 1200～1400kgf/cm
2Pressure be pressed into ceramic pipe;
(3) sintering
With tunnel like high temperature sintering furnace sintering 2 hours under 1500～1700 ℃ furnace temperature, the sintered density that makes ceramic pipe is 3.7g/cm
3More than, water-intake rate is below 0.01%, median size is 45～55 microns.
(4) silk-screen
Earlier according to molybdenum powder: manganese powder: aluminum oxide powder: organic bond=65: 17.5: 17.5: 15 part by weight, molybdenum powder, manganese powder, aluminum oxide powder and organic bond are carried out uniform mixing together, make metallization cream; Then, metallization cream is printed on equably the surface of ceramic pipe one end of crossing through sintering; Wherein, the print thickness of metallization cream is 35～60 microns; Said organic bond is according to Terpineol 350: the part by weight of ethyl cellulose=85: 15 mixes;
(5) metalized
With furnace temperature is 1450 ℃ tunnel furnace formula hydrogen-burning stove, mixes the ceramic pipe sintering 1 hour that will be printed with metallization cream under the atmosphere in hydrogen/nitrogen, and metallization cream and ceramic pipe are firmly combined;
(6) nickel plating
Adopt automatic nickel plating production line, to put in 50 ℃ the electrolytic solution through the ceramic pipe that metalized is crossed and keep 15～25 minutes, make metallization cream surface form the nickel dam of one deck 2～6 micron thickness, can obtain microwave magnetron metallized ceramic of the present invention.
Take such scheme, have the following advantages:
Owing to contain foam killer in the raw material of the present invention, make the granulated powders size distribution produced evenly, regular shape and be spheroidal, good fluidity, utilization ratio is up to more than 90%.Thereby improved production efficiency greatly, reduced production cost.
Owing to adopt spraying drying, can realize modern scale production, the granulated powders good fluidity of producing makes that the ceramic pipe pore after the moulding is less, resistance to air loss good;
Because full-automatic punch is adopted in moulding, powder is once dry-pressing formed at normal temperatures, make not yielding behind the ceramic pipe sintering of making, yield rate is high, production cost is lower;
Because sintering process is to adopt the tunnel like high temperature sintering furnace to carry out stoking, not only production efficiency is higher, and the time of each warm area easily hold, make consistency of product better;
Owing to adopt automatic nickel plating production line to carry out nickel plating, sedimentation speed is fast again, and the internal stress of coating is little, and mechanical property is good, steady quality.
Embodiment
Embodiment one:
Choose the aluminium sesquioxide of 88 weight parts, the lime carbonate of 2.5 weight parts, the silicon oxide of 2 weight parts, the kaolin of 4 weight parts, the talcum powder of 1.5 weight parts, the wedding agent of 7 weight parts, the parting agent of 2 weight parts, the dispersion agent of 2 weight, the foam killer of 1 weight part earlier, stand-by.Wedding agent wherein, parting agent, dispersion agent and foam killer are respectively polyvinyl alcohol, stearate, sodium polyacrylate and trevira.
Afterwards, carry out ball milling.Earlier aluminium sesquioxide, lime carbonate, silicon oxide, kaolin, talcum powder, wedding agent, parting agent, dispersion agent and foam killer are poured in the ball mill, and add the deionized water of 85 weight parts, be ground into median size less than 3 microns pasty slurry with 30 rev/mins rotating speeds.With spray-drier pasty slurry being processed into median size again is 50 microns granulated powders.
Afterwards, carry out forming processes.With stamping machine above-mentioned granulated powders is dropped in the mould, with 1200kgf/cm
2Pressure be pressed into ceramic pipe.
Afterwards, carry out sintering.With tunnel like high temperature sintering furnace sintering 2 hours under 1500 ℃ furnace temperature, the sintered density that makes ceramic pipe is 3.7g/cm
3More than, water-intake rate is below 0.01%, median size is 45 microns.
Afterwards, carry out silk-screen.Earlier according to molybdenum powder: manganese powder: aluminum oxide powder: organic bond=65: 17.5: 17.5: 15 part by weight, molybdenum powder, manganese powder, aluminum oxide powder and organic bond are carried out uniform mixing together, make metallization cream.Then, metallization cream is printed on equably the surface of ceramic pipe one end of crossing through sintering.Wherein, the print thickness of metallization cream is 35 microns.Said organic bond is according to Terpineol 350: the part by weight of ethyl cellulose=85: 15 mixes.
Afterwards, carry out metalized.With furnace temperature is 1450 ℃ tunnel furnace formula hydrogen-burning stove, mixes the ceramic pipe sintering 1 hour that will be printed with metallization cream under the atmosphere in hydrogen/nitrogen, and metallization cream and ceramic pipe are firmly combined.
At last, carry out nickel plating.Adopt automatic nickel plating production line, will put in 50 ℃ the electrolytic solution through the ceramic pipe that metalized is crossed and keep 15 minutes, make metallization cream surface form the nickel dam of one deck 2 micron thickness, promptly obtain microwave magnetron metallized ceramic of the present invention.
Embodiment two:
Choose the aluminium sesquioxide of 92 weight parts, the lime carbonate of 3 weight parts, the silicon oxide of 1.5 weight parts, the kaolin of 3 weight parts, the talcum powder of 2 weight parts, the wedding agent of 9 weight parts, the parting agent of 1.5 weight parts, the dispersion agent of 1 weight, the foam killer of 1.5 weight parts earlier, stand-by.Wedding agent wherein, parting agent, dispersion agent and foam killer are respectively polyvinyl alcohol, stearate, sodium polyacrylate and trevira.
Afterwards, carry out ball milling.Earlier aluminium sesquioxide, lime carbonate, silicon oxide, kaolin, talcum powder, wedding agent, parting agent, dispersion agent and foam killer are poured in the ball mill, and add the deionized water of 90 weight parts, be ground into median size less than 3 microns pasty slurry with 35 rev/mins rotating speeds.With spray-drier pasty slurry being processed into median size again is 70 microns granulated powders.
Afterwards, carry out forming processes.With stamping machine above-mentioned granulated powders is dropped in the mould, with 1300kgf/cm
2Pressure be pressed into ceramic pipe.
Afterwards, carry out sintering.With tunnel like high temperature sintering furnace sintering 2 hours under 1600 ℃ furnace temperature, the sintered density that makes ceramic pipe is 3.7g/cm
3More than, water-intake rate is below 0.01%, median size is 50 microns.
Afterwards, carry out silk-screen.Earlier according to molybdenum powder: manganese powder: aluminum oxide powder: organic bond=65: 17.5: 17.5: 15 part by weight, molybdenum powder, manganese powder, aluminum oxide powder and organic bond are carried out uniform mixing together, make metallization cream.Then, metallization cream is printed on equably the surface of ceramic pipe one end of crossing through sintering.Wherein, the print thickness of metallization cream is 50 microns.Said organic bond is according to Terpineol 350: the part by weight of ethyl cellulose=85: 15 mixes.
Afterwards, carry out metalized.With furnace temperature is 1450 ℃ tunnel furnace formula hydrogen-burning stove, mixes the ceramic pipe sintering 1 hour that will be printed with metallization cream under the atmosphere in hydrogen/nitrogen, and metallization cream and ceramic pipe are firmly combined.
At last, carry out nickel plating.Adopt automatic nickel plating production line, will put in 50 ℃ the electrolytic solution through the ceramic pipe that metalized is crossed and keep 20 minutes, make metallization cream surface form the nickel dam of one deck 2.5 micron thickness, promptly obtain microwave magnetron metallized ceramic of the present invention.
Embodiment three:
Choose the aluminium sesquioxide of 96 weight parts, the lime carbonate of 2 weight parts, the silicon oxide of 1 weight part, the kaolin of 5 weight parts, the talcum powder of 2.5 weight parts, the wedding agent of 5 weight parts, the parting agent of 1 weight part, the dispersion agent of 3 weight, the foam killer of 2 weight parts earlier, stand-by.Wedding agent wherein, parting agent, dispersion agent and foam killer are respectively polyvinyl alcohol, stearate, sodium polyacrylate and trevira.
Afterwards, carry out ball milling.Earlier aluminium sesquioxide, lime carbonate, silicon oxide, kaolin, talcum powder, wedding agent, parting agent, dispersion agent and foam killer are poured in the ball mill, and add the deionized water of 95 weight parts, be ground into median size less than 3 microns pasty slurry with 40 rev/mins rotating speeds.With spray-drier pasty slurry being processed into median size again is 80 microns granulated powders.
Afterwards, carry out forming processes.With stamping machine above-mentioned granulated powders is dropped in the mould, with 1400kg/cm
2Pressure be pressed into ceramic pipe.
Afterwards, carry out sintering.With tunnel like high temperature sintering furnace sintering 2 hours under 1700 ℃ furnace temperature, the sintered density that makes ceramic pipe is 3.7g/cm
3More than, water-intake rate is below 0.01%, median size is 55 microns.
Afterwards, carry out silk-screen.Earlier according to molybdenum powder: manganese powder: aluminum oxide powder: organic bond=65: 17.5: 17.5: 15 part by weight, molybdenum powder, manganese powder, aluminum oxide powder and organic bond are carried out uniform mixing together, make metallization cream.Then, metallization cream is printed on equably the surface of ceramic pipe one end of crossing through sintering.Wherein, the print thickness of metallization cream is 60 microns.Said organic bond is according to Terpineol 350: the part by weight of ethyl cellulose=85: 15 mixes.
Afterwards, carry out metalized.With furnace temperature is 1450 ℃ tunnel furnace formula hydrogen-burning stove, mixes the ceramic pipe sintering 1 hour that will be printed with metallization cream under the atmosphere in hydrogen/nitrogen, and metallization cream and ceramic pipe are firmly combined.
At last, carry out nickel plating.Adopt automatic nickel plating production line, will put in 50 ℃ the electrolytic solution through the ceramic pipe that metalized is crossed and keep 25 minutes, make metallization cream surface form the nickel dam of one deck 3 micron thickness, promptly obtain microwave magnetron metallized ceramic of the present invention.
Claims (2)
1. microwave magnetron metallized ceramic is characterized in that wherein pottery is by the feedstock production of following parts by weight:
88～96 parts of aluminium sesquioxides; 2～3 parts in lime carbonate; 1～2 part of silicon oxide; 3～5 parts of kaolin; 1.5～2.5 parts of talcum powder; 5～9 parts of wedding agents; 1～2 part of parting agent; 1～3 part of dispersion agent; 1～2 part of foam killer; Said wedding agent, parting agent, dispersion agent and foam killer are respectively polyvinyl alcohol, stearate, sodium polyacrylate and trevira.
2. the microwave magnetron according to claim 1 production method of metallized ceramic is characterized in that may further comprise the steps successively:
(1) ball milling
Earlier aluminium sesquioxide, lime carbonate, silicon oxide, kaolin, talcum powder, wedding agent, parting agent, dispersion agent and foam killer are poured in the ball mill, and add the deionized water of 85～95 weight parts, be ground into median size less than 3 microns pasty slurry with 30～40 rev/mins rotating speeds; With spray-drier pasty slurry being processed into median size again is 50～80 microns granulated powders, stand-by;
(2) moulding
With stamping machine above-mentioned granulated powders is dropped in the mould, with 1200～1400kgf/cm
2Pressure be pressed into ceramic pipe;
(3) sintering
With tunnel like high temperature sintering furnace sintering 2 hours under 1500～1700 ℃ furnace temperature, the sintered density that makes ceramic pipe is 3.7g/cm
3More than, water-intake rate is below 0.01%, median size is 45～55 microns;
(4) silk-screen
Earlier according to molybdenum powder: manganese powder: aluminum oxide powder: organic bond=65: 17.5: 17.5: 15 part by weight, molybdenum powder, manganese powder, aluminum oxide powder and organic bond are carried out uniform mixing together, make metallization cream; Then, metallization cream is printed on equably the surface of ceramic pipe one end of crossing through sintering; Wherein, the print thickness of metallization cream is 35～60 microns; Said organic bond is according to Terpineol 350: the part by weight of ethyl cellulose=85: 15 mixes;
(5) metalized
With furnace temperature is 1450 ℃ tunnel furnace formula hydrogen-burning stove, mixes the ceramic pipe sintering 1 hour that will be printed with metallization cream under the atmosphere in hydrogen/nitrogen, and metallization cream and ceramic pipe are firmly combined;
(6) nickel plating
Adopt automatic nickel plating production line, to put in 50 ℃ the electrolytic solution through the ceramic pipe that metalized is crossed and keep 15～25 minutes, make metallization cream surface form the nickel dam of one deck 2～6 micron thickness, can obtain microwave magnetron metallized ceramic of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040499 CN1288109C (en) | 2005-06-13 | 2005-06-13 | Metallized ceramic for microwave megnetron and it production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040499 CN1288109C (en) | 2005-06-13 | 2005-06-13 | Metallized ceramic for microwave megnetron and it production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724456A CN1724456A (en) | 2006-01-25 |
| CN1288109C true CN1288109C (en) | 2006-12-06 |
Family
ID=35924106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510040499 Expired - Fee Related CN1288109C (en) | 2005-06-13 | 2005-06-13 | Metallized ceramic for microwave megnetron and it production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1288109C (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008142804A1 (en) * | 2007-04-25 | 2008-11-27 | Kabushiki Kaisha Toshiba | Ceramic part for magnetron, magnetron employing the same, and process for producing ceramic part for magnetron |
| CN102076133B (en) * | 2011-02-14 | 2012-08-22 | 无锡康伟工程陶瓷有限公司 | High-power ceramic output cap for microwaves and production method thereof |
| CN106187070A (en) * | 2015-05-09 | 2016-12-07 | 新化县湘港兴科陶瓷发展有限公司 | A kind of production technology of earthenware |
| CN105047507B (en) * | 2015-07-29 | 2018-02-06 | 常熟市银洋陶瓷器件有限公司 | A kind of magnetron cathode ceramics |
| CN105399454A (en) * | 2015-11-27 | 2016-03-16 | 常熟市银洋陶瓷器件有限公司 | Preparation process suitable for micro-wave oven magnetron ceramic metallization |
| CN106866159A (en) * | 2017-03-17 | 2017-06-20 | 无锡康伟工程陶瓷有限公司 | The preparation method of metallized ceramic raw material |
| CN107359499A (en) * | 2017-07-09 | 2017-11-17 | 湖南省众精细陶瓷制造有限公司 | The packaging technology of ceramic discharge tube |
| CN108526462A (en) * | 2018-03-02 | 2018-09-14 | 浙江新光阳照明股份有限公司 | A kind of sintering process of high-temperature hydrogen burning stove |
| CN110128117B (en) * | 2019-06-19 | 2022-03-08 | 宜宾红星电子有限公司 | High-purity alumina ceramic material and preparation method thereof |
| CN111099887A (en) * | 2019-12-26 | 2020-05-05 | 南京柯瑞特种陶瓷股份有限公司 | Preparation method of honeycomb ceramic carrier powder and prepared powder |
| CN111471948B (en) * | 2020-04-15 | 2020-10-23 | 湖南省美程陶瓷科技有限公司 | Metallization method of ceramic insulating ring for microwave magnetron |
| CN111517803B (en) * | 2020-04-25 | 2020-12-08 | 湖南省美程陶瓷科技有限公司 | Ceramic support for microwave magnetron and preparation method thereof |
| CN113173797B (en) * | 2021-06-01 | 2021-12-07 | 湖南新华源科技有限公司 | Al (aluminum)2O3Base ceramic welding sealing component and preparation method thereof |
| CN116462489A (en) * | 2022-01-11 | 2023-07-21 | 江苏省陶瓷研究所有限公司 | Ceramic vacuum tube material and preparation method thereof |
| CN114835512B (en) * | 2022-03-28 | 2023-05-02 | 南京三乐集团有限公司 | High-reliability small-size sapphire Mo-Mn metallization method |
-
2005
- 2005-06-13 CN CN 200510040499 patent/CN1288109C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1724456A (en) | 2006-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1288109C (en) | Metallized ceramic for microwave megnetron and it production method | |
| CN101718131B (en) | Ceramic plate for curtain wall decoration and preparation method thereof | |
| CN108275969B (en) | Mullite-silicon carbide whisker composite ceramic material taking natural minerals as raw materials and preparation method thereof | |
| CN1719560A (en) | Method for mfg. crystal boundary layer ceramic medium material and substrate for single layer capacitor and substrate thereof | |
| CN107973610A (en) | A kind of carborundum ramming mass using discarded silicon carbide sagger as primary raw material | |
| CN1332910C (en) | Method for preparing high heatconducting aluminium nitride ceramic base sheets through powder metallurgical technique | |
| CN102825649A (en) | Method for preparing MgAlON transparent ceramic bisque by gel casting and molding | |
| CN102076133B (en) | High-power ceramic output cap for microwaves and production method thereof | |
| CN1807345A (en) | Alumina base mullite homogeneous material preparation method | |
| CN1152298A (en) | Aluminum Nitride sinter and process for production thereof | |
| CN102049514B (en) | Powder for aluminum oxide ceramics nano metallized paste and preparation method thereof | |
| CN113336563B (en) | Sialon whisker-corundum composite ceramic material using natural mineral as raw material, preparation method thereof and prepared product | |
| CN100532319C (en) | Mo-corundum ceramic material and low-temperature sintering method | |
| CN114524666A (en) | High-strength dark-spot-free 95 aluminum oxide ceramic and preparation method thereof | |
| CN110590389A (en) | Silicon nitride whisker-aluminum nitride-corundum ternary composite ceramic material using natural minerals as raw materials and preparation method thereof | |
| CN1203899A (en) | Method for preparing high thermal-conductivity aluminum nitride ceramics | |
| CN100509692C (en) | Tungsten corundum ceramic material and low temperature sintering method | |
| CN115286392B (en) | Preparation of TiB 2 Method for preparing ternary complex phase ceramic of-TiC-SiC and its product | |
| CN1212288C (en) | Aluminium nitride ceramic with high heat conductivity | |
| CN103171027B (en) | Preparation method for circular type ceramic sprue cup in machine wheel forming mode | |
| CN113372101A (en) | Preparation method of alumina ceramic | |
| CN113185269A (en) | Novel slide plate compounding process | |
| CN104446506A (en) | Improved grouting method for preparing special ceramic | |
| CN112281128B (en) | Preparation method of perovskite type samarium ferrite target material for magnetron sputtering | |
| CN1263705C (en) | Process for preparing alumine based O'-Sialon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Kangwei Engineering Ceramic Co., Ltd. Assignor: Wang Wei Contract fulfillment period: 2007.1.13 to 2025.6.12 Contract record no.: 2008320000071 Denomination of invention: Metallized ceramic for microwave megnetron and it production method Granted publication date: 20061206 License type: Exclusive license Record date: 20080813 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.1.13 TO 2025.6.12 Name of requester: NONE WUXI KANGWEI ENGINEERING CERAMICS CO., LTD. Effective date: 20080813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20200613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |