JPH09138077A - Microwave heating device - Google Patents
Microwave heating deviceInfo
- Publication number
- JPH09138077A JPH09138077A JP32614895A JP32614895A JPH09138077A JP H09138077 A JPH09138077 A JP H09138077A JP 32614895 A JP32614895 A JP 32614895A JP 32614895 A JP32614895 A JP 32614895A JP H09138077 A JPH09138077 A JP H09138077A
- Authority
- JP
- Japan
- Prior art keywords
- microwave
- microwave heating
- airtight container
- microwave oven
- heat treatment
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 36
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 230000005855 radiation Effects 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 21
- 238000009529 body temperature measurement Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Furnace Details (AREA)
- General Induction Heating (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、大気雰囲気以外の
各種雰囲気中でマイクロ波加熱による熱処理を行うマイ
クロ波加熱装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave heating apparatus for performing heat treatment by microwave heating in various atmospheres other than atmospheric air.
【０００２】[0002]
【従来の技術】従来、マイクロ波加熱装置として安価な
電子レンジでは大気雰囲気以外の雰囲気で加熱可能なも
のは無かった。マイクロ波加熱装置で各種雰囲気を作る
ためには加熱室自体が気密容器になっていたため、専用
の設計の装置しか無く、数百万円以上の購入費用とな
り、大掛かりになっていた。2. Description of the Related Art Heretofore, there has been no microwave oven which can be heated in an atmosphere other than the atmosphere in an inexpensive microwave oven. In order to create various atmospheres with the microwave heating device, the heating chamber itself was an airtight container, so there was only a device with a special design, and the purchase cost was several million yen or more, which was a large scale.
【０００３】[0003]
【発明が解決しようとする課題】マイクロ波加熱装置は
非常に高価で数百万円〜数千万円も掛かるため、手軽に
装置の購入は難しい。また、依頼テストも設備費が高価
なため、１度のテストで十数万円〜数十万円もかかって
しまい、決して安くはない。マイクロ波加熱装置として
安価な電子レンジでは大気雰囲気以外の雰囲気で加熱可
能なものは無いため、マイクロ波加熱装置で各種雰囲気
を作るためには加熱室自体が気密容器にする専用の設計
が必要となり、大掛かりになってしまう。Since the microwave heating device is very expensive and costs several million to several tens of millions of yen, it is difficult to purchase the device easily. Moreover, since the equipment cost of the request test is also high, it costs 100,000 to 100,000 yen per test, which is not cheap at all. Since there is no microwave oven that can be heated in an atmosphere other than the atmospheric atmosphere in an inexpensive microwave oven, in order to create various atmospheres with the microwave heater, it is necessary to design the heating chamber itself as an airtight container. , It will be a big deal.
【０００４】[0004]
【課題を解決するための手段】本発明は、例えばマイク
ロ波加熱装置として安価な数万円程度の電子レンジ等を
利用し、その内部にセラミック質気密容器とこの気密容
器から出ているガス供給管とガス排気管とを具備してい
る。１本は測温用およびガス供給用でもう１本はガス排
気用または真空引き用のチューブで、これで各種雰囲気
の出入口になっている。これらのチューブは２．４５Ｈ
ｚのマイクロ波を吸収し難い石英質とアルミナ質のもの
を使用し、エネルギーロスを抑え、耐熱性のあるもので
ある。また、気密管としての役割も持っている。市販の
電子レンジ内でセラミック質気密容器の中にマイクロ波
を吸収する被加熱物またはマイクロ波を吸収するヒータ
を入れ、各種雰囲気の熱処理を行うものである。本発明
は、マイクロ波加熱装置として安価な電子レンジを用
い、その内部にセラミック質気密容器を入れて各種雰囲
気の熱処理を簡単で、かつ安価に可能とさせるものであ
る。また、安価な市販の電子レンジを用いるため、周辺
機器を含めた装置の購入費用としては従来の価格に対
し、１／５０〜１／１０程度で済んでしまう。The present invention uses, for example, an inexpensive microwave oven for several tens of thousands of yen as a microwave heating device, and a ceramic airtight container and a gas supply from this airtight container are provided therein. It has a pipe and a gas exhaust pipe. One is for temperature measurement and gas supply, and the other is for gas exhaust or vacuum evacuation, which serves as the entrance and exit of various atmospheres. These tubes are 2.45H
It is made of quartz and alumina, which are difficult to absorb the microwave of z, and has energy resistance and heat resistance. It also has a role as an airtight tube. In a commercially available microwave oven, a heating object that absorbs microwaves or a heater that absorbs microwaves is placed in a ceramic airtight container to perform heat treatment in various atmospheres. INDUSTRIAL APPLICABILITY The present invention uses an inexpensive microwave oven as a microwave heating apparatus, and puts a ceramic airtight container inside the microwave oven to enable heat treatment in various atmospheres easily and at low cost. Further, since an inexpensive commercially available microwave oven is used, the purchase cost of the apparatus including peripheral devices is about 1/50 to 1/10 of the conventional price.
【０００５】[0005]
【発明の実施の形態】本発明の作用を１図および２図の
第三角法に示した図をもとに説明する。 電子レンジ５の回転テーブル７上にスラストベアリン
グ４を回転テーブル７の中心からずらした位置に中心を
置き、さらにその上に断熱箱１を置く。 断熱箱１中心部からセラミックチューブ２およびガス
供給管３を電子レンジ奥面にあけた測温孔８を貫通し電
子レンジ庫外まで出し、その先端に放射温度計９を設置
する。 ガス供給孔１５から雰囲気ガス１６ａを挿入し、セラ
ミック質気密容器１２内を充満しながら雰囲気ガス１６
ｂが通過し、加熱室外まで伸びたガス排気管１１から雰
囲気ガス１６ｃが排出され、加熱室内を所定の雰囲気に
する。 電子レンジ５を運転すると回転テーブル７が回転し、
断熱箱１は時計回転の場合断熱箱回転移動軌跡１０ａ、
１０ｂ、１０ｃと円を描きながら電子レンジ５庫内のマ
イクロ波電界強度の強弱を通過しながら回転移動する。 そして断熱箱１内の被加熱物１７が加熱され、その温
度を放射温度計９で測定する。 その測定温度信号から電子レンジのマイクロ波出力を
ＯＮ−ＯＦＦ制御、あるいは連続出力制御を行い、目的
とする熱処理を行う。DESCRIPTION OF THE PREFERRED EMBODIMENTS The operation of the present invention will be described with reference to the diagrams shown in the trigonometric method of FIGS. The thrust bearing 4 is placed on the rotary table 7 of the microwave oven 5 at a position offset from the center of the rotary table 7, and the heat insulating box 1 is placed on the center. A ceramic tube 2 and a gas supply pipe 3 are penetrated from a central part of the heat insulating box 1 through a temperature measuring hole 8 formed in the back surface of the microwave oven to the outside of the microwave oven, and a radiation thermometer 9 is installed at the tip thereof. The atmosphere gas 16a is inserted from the gas supply hole 15 to fill the inside of the ceramic airtight container 12 with the atmosphere gas 16a.
Atmosphere gas 16c is discharged from the gas exhaust pipe 11 that passes through b and extends to the outside of the heating chamber, thereby creating a predetermined atmosphere in the heating chamber. When the microwave oven 5 is operated, the rotary table 7 rotates,
When the heat insulation box 1 is rotated clockwise, the heat insulation box rotation movement locus 10a,
While drawing a circle with 10b and 10c, the microwave oven 5 rotates and moves while passing through the strength of the microwave electric field strength in the microwave oven 5. Then, the object to be heated 17 in the heat insulation box 1 is heated, and the temperature thereof is measured by the radiation thermometer 9. Based on the measured temperature signal, the microwave output of the microwave oven is subjected to ON-OFF control or continuous output control, and the target heat treatment is performed.
【０００６】[0006]
【実施例】本発明を実施例により説明する。セラミック
スの焼結は１０００℃を越える温度が必要なため、市販
の電子レンジのマイクロ波出力を可変させる装置を追加
改造した。電子レンジの回転テーブル上にマイクロ波を
良く透過するテフロン製スラストベアリングを回転テー
ブル中心からずらした位置に中心を置き、さらにその上
に断熱箱を置き、その中にセラミック質気密容器を入れ
る。該気密容器内部からガス供給管およびガス排気管の
２本のチューブを出し、１本は測温用およびガス供給用
でもう１本はガス排気用または真空引き用のチューブで
電子レンジ奥面にあけた測温孔を貫通し、電子レンジ庫
外まで出し、ガス供給管の先端には放射温度計を設置す
る。電子レンジを運転すると回転テーブル７が回転し、
円を描きながら電子レンジ庫内のマイクロ波電界強度の
強弱分布を通過しながら回転する。そして断熱箱内の被
加然物が加熱され、その温度を放射温度計で測定する。
ガス供給孔から窒素ガスを挿入し、気密容器内を窒素ガ
ス雰囲気にして酸化雰囲気で加熱焼結出来ないセラミッ
クスの焼結をさせた。この結果、セラミックスの加熱焼
結を従来の電気加熱炉による加熱よりも時間で約半分、
電力で約１０分の１でセラミックスを焼結出来、マイク
ロ波加熱装置設備費用として数十万円程度であった。EXAMPLES The present invention will be described with reference to examples. Since sintering of ceramics requires a temperature exceeding 1000 ° C., a device for varying the microwave output of a commercially available microwave oven was additionally modified. A Teflon thrust bearing that transmits microwaves well is placed on a rotary table of a microwave oven at a position offset from the center of the rotary table, and a heat insulating box is placed on the center, and a ceramic airtight container is placed in it. Two tubes, a gas supply tube and a gas exhaust tube, are taken out from the inside of the airtight container, one is for temperature measurement and gas supply, and the other is for gas exhaust or vacuum evacuation. A thermometer is installed at the tip of the gas supply pipe, penetrating through the opened temperature measurement hole and out of the microwave oven. When the microwave oven is operated, the rotary table 7 rotates,
While drawing a circle, it rotates while passing through the distribution of microwave electric field strength in the microwave oven. Then, the object to be heated in the heat insulation box is heated and its temperature is measured by a radiation thermometer.
Nitrogen gas was inserted through the gas supply hole, and the airtight container was made into a nitrogen gas atmosphere to sinter ceramics that could not be heated and sintered in an oxidizing atmosphere. As a result, it takes about half the time to heat and sinter ceramics as compared to heating with a conventional electric furnace.
It was possible to sinter the ceramics by about 1/10 with electric power, and the microwave heating equipment cost about several hundred thousand yen.
【０００７】[0007]
【発明の効果】このように本発明は、マイクロ波加熱装
置として安価な電子レンジを使い、電子レンジ庫内に各
種雰囲気を作ることが出来るセラミック質気密容器を入
れ、セラミックス焼結等の熱処理を行うことにより、設
備費が高価なマイクロ波加熱装置を簡単手軽で安価に実
現出来るもので、産業上の効果は大きい。As described above, according to the present invention, an inexpensive microwave oven is used as a microwave heating apparatus, a ceramic airtight container capable of creating various atmospheres is placed in the microwave oven, and heat treatment such as ceramics sintering is performed. By doing so, a microwave heating device with high equipment cost can be realized easily, easily and inexpensively, and the industrial effect is great.
【図１】本発明の断熱箱を示した断面図である。FIG. 1 is a cross-sectional view showing a heat insulation box of the present invention.
【図２】本発明の構成を示した第三角法の図である。FIG. 2 is a diagram of a trigonometric method showing a configuration of the present invention.
１．断熱箱 ２．セラミックチューブ ３．ガス供給管 ４．スラストベアリング ５．電子レンジ ６．電子レンジ扉 ７．回転テーブル ８．測温孔 ９．放射温度計 １０．断熱箱回転移動軌跡 １１．ガス排気管 １２．セラミック質気密容器 １３．セラミック質気密容器蓋 １４．ガス排気孔 １５．ガス供給孔 １６．雰囲気ガス １７．被加熱物 1. Insulation box 2. Ceramic tube 3. Gas supply pipe 4. Thrust bearing 5. Microwave 6. Microwave oven door 7. Rotating table 8. Temperature measuring hole 9. Radiation thermometer 10. Insulation box rotation movement trajectory 11. Gas exhaust pipe 12. Ceramic airtight container 13. Ceramic airtight container lid 14. Gas exhaust hole 15. Gas supply hole 16. Atmosphere gas 17. Object to be heated
Claims (1)
装置において、加熱室内の回転テーブル上にスラストベ
アリングとセラミック質気密容器と気密容器を断熱する
断熱箱と気密容器から伸びたガス供給管及びガス排気管
と放射温度計とを組み合わせた装量を具備し、安価な電
子レンジ等で各種雰囲気の中でマイクロ波加熱による熱
処理を可能とさせることで、マイクロ波加熱による熱処
理を安価で手軽に出来るようにしたことを特徴とするマ
イクロ波加熱装置。1. A microwave heating device equipped with a rotary table, wherein a thrust bearing, a ceramic airtight container, a heat insulation box for insulating the airtight container, a gas supply pipe extending from the airtight container, and a gas exhaust on the rotary table in the heating chamber. Equipped with a combination of a tube and a radiation thermometer, and by making it possible to perform heat treatment by microwave heating in various atmospheres in an inexpensive microwave oven, etc., heat treatment by microwave heating can be made inexpensive and easy. The microwave heating device characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32614895A JPH09138077A (en) | 1995-11-10 | 1995-11-10 | Microwave heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32614895A JPH09138077A (en) | 1995-11-10 | 1995-11-10 | Microwave heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09138077A true JPH09138077A (en) | 1997-05-27 |
Family
ID=18184593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32614895A Withdrawn JPH09138077A (en) | 1995-11-10 | 1995-11-10 | Microwave heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09138077A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985002973A1 (en) * | 1983-12-30 | 1985-07-18 | Gascoigne-Melotte B.V. | Automatic apply of teat cups |
| EP0209205A1 (en) * | 1985-07-19 | 1987-01-21 | C. van der Lely N.V. | An implement for milking animals, such as cows, in a parlour |
| EP0313109B1 (en) * | 1985-03-12 | 1991-10-16 | C. van der Lely N.V. | Implement for milking animals |
| JP2009079447A (en) * | 2007-09-27 | 2009-04-16 | Mhi Environment Engineering Co Ltd | Apparatus and method for heating asphalt and equipment for manufacturing pavement |
-
1995
- 1995-11-10 JP JP32614895A patent/JPH09138077A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985002973A1 (en) * | 1983-12-30 | 1985-07-18 | Gascoigne-Melotte B.V. | Automatic apply of teat cups |
| EP0313109B1 (en) * | 1985-03-12 | 1991-10-16 | C. van der Lely N.V. | Implement for milking animals |
| EP0209205A1 (en) * | 1985-07-19 | 1987-01-21 | C. van der Lely N.V. | An implement for milking animals, such as cows, in a parlour |
| JP2009079447A (en) * | 2007-09-27 | 2009-04-16 | Mhi Environment Engineering Co Ltd | Apparatus and method for heating asphalt and equipment for manufacturing pavement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030204 |