JPH081596Y2 - Heater for heating furnace - Google Patents
Heater for heating furnaceInfo
- Publication number
- JPH081596Y2 JPH081596Y2 JP1990127981U JP12798190U JPH081596Y2 JP H081596 Y2 JPH081596 Y2 JP H081596Y2 JP 1990127981 U JP1990127981 U JP 1990127981U JP 12798190 U JP12798190 U JP 12798190U JP H081596 Y2 JPH081596 Y2 JP H081596Y2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- heating furnace
- hydrogen
- heater body
- carbon
- 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 - Lifetime
Links
Landscapes
- Resistance Heating (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、還元性雰囲気（水素雰囲気）の中、高温高
圧下で材料の強度試験等を行うための加熱炉内に設置さ
れる加熱炉用ヒータに関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a heating furnace installed in a heating furnace for carrying out a strength test of materials under a high temperature and high pressure in a reducing atmosphere (hydrogen atmosphere). Heaters.
［従来の技術］ 近年、水素エンジン等の開発に伴い、水素の如き還元
性雰囲気の中、高温高圧下で材料の強度試験等を行うた
めに第２図に示される如き加熱１が用いられており、該
加熱炉１は、内部に還元性ガス５を充填し高圧に保持可
能な炉体２内に、ヒータ本体３を設置し、該ヒータ本体
３に電源４を接続して構成されている。[Prior Art] In recent years, with the development of hydrogen engines and the like, heating 1 as shown in FIG. 2 has been used for conducting strength tests of materials under high temperature and high pressure in a reducing atmosphere such as hydrogen. The heating furnace 1 is configured such that a heater body 3 is installed in a furnace body 2 that can be filled with a reducing gas 5 and can be maintained at a high pressure, and a power source 4 is connected to the heater body 3. .
前記ヒータ本体３は、第２、３図に示される如く、下
端外周部にフランジ部6aが一体に形成されたカーボン製
の円筒部材６に、上端から下方へ延びるスリット７と、
下端のフランジ部6aから上方へ延びるスリット８とを、
円周方向に交互に配設されるよう形成し、前記フランジ
部6aに孔9,10を穿設して構成されており、該孔9,10に、
前記炉体２内底面から突設され且つ前記電源４に接続さ
れた電極を兼ねるボルト11,12を嵌挿せしめると共に、
該ボルト11,12を図示しないナットを螺着して前記ヒー
タ本体３を炉体２内に固定するようにしてある。As shown in FIGS. 2 and 3, the heater main body 3 includes a carbon cylindrical member 6 integrally formed with a flange portion 6a on an outer peripheral portion of a lower end, and a slit 7 extending downward from the upper end.
The slit 8 extending upward from the flange portion 6a at the lower end,
It is formed so as to be alternately arranged in the circumferential direction, and is configured by forming holes 9 and 10 in the flange portion 6a, and in the holes 9 and 10,
Bolts 11 and 12 projecting from the inner bottom surface of the furnace body 2 and connected to the power source 4 also serving as electrodes are fitted and inserted,
The heater main body 3 is fixed in the furnace body 2 by screwing nuts (not shown) to the bolts 11 and 12.
材料の強度試験等を行う際には、試験片（図示せず）
をヒータ本体３内部の軸心位置に配設すると共に、炉体
２内に水素の如き還元性ガス５を充填して高圧に保持し
た状態で、前記ヒータ本体３に通電することにより該ヒ
ータ本体３をそれ自体の抵抗によって昇温せしめ、前記
試験片を高温に加熱し、該試験片に外力を付加せしめる
等して各種データをとるようにしている。When performing a material strength test, etc., a test piece (not shown)
Is arranged at an axial center position inside the heater body 3, and the heater body 3 is energized by being charged with a reducing gas 5 such as hydrogen in the furnace body 2 and kept at a high pressure. 3 is heated by its own resistance, the test piece is heated to a high temperature, and an external force is applied to the test piece to obtain various data.
［考案が解決しようとする課題］ しかしながら、前述の如き加熱炉１の場合、ヒータ本
体３は高温高圧下で還元性ガス５に晒されるため、ヒー
タ本体３を形成する炭素が水素と反応してメタン（C
H4）となり、ヒータ本体３が目減りして抵抗値が変化し
たり、最悪の場合には破断したりしてしまい、ヒータと
して使用できなくなり、ヒータの寿命が非常に短かくな
るという問題があった。[Problems to be Solved by the Invention] However, in the case of the heating furnace 1 as described above, since the heater body 3 is exposed to the reducing gas 5 under high temperature and high pressure, carbon forming the heater body 3 reacts with hydrogen. Methane (C
H 4 ), the resistance of the heater body 3 is diminished and the resistance value changes, or in the worst case, the heater body 3 breaks, and cannot be used as a heater, and the life of the heater becomes very short. It was
本考案は、斯かる実情に鑑み、水素との反応を大幅に
抑制し得、寿命延長を図り得る加熱炉用ヒータを提供し
ようとするものである。In view of such circumstances, the present invention aims to provide a heater for a heating furnace, which can significantly suppress the reaction with hydrogen and can prolong the life.
［課題を解決するための手段］ 本考案は、加熱炉内に設置され、水素の如き還元性雰
囲気に晒されるカーボン製の加熱炉用ヒータにおいて、
ヒータ本体の表面に、水素透過量の少ないアルミナや酸
化チタン等のセラミックスをコーティングしてカーボン
保護膜を形成したことを特徴とするものである。[Means for Solving the Problems] The present invention provides a heater for a carbon heating furnace, which is installed in a heating furnace and is exposed to a reducing atmosphere such as hydrogen.
It is characterized in that the surface of the heater body is coated with a ceramic such as alumina or titanium oxide having a small hydrogen permeation amount to form a carbon protective film.
［作用］ 従って、加熱炉内において材料の強度試験等を行う際
に、加熱炉内に水素の如き還元性ガスを充填して高圧に
保持した状態で、試験片を高温に加熱するために、前記
ヒータ本体に通電し該ヒータ本体をそれ自体の抵抗によ
って昇温させても、ヒータ本体は水素透過量の少ないア
ルミナや酸化チタン等のセラミックスからなるカーボン
保護膜により直接還元性ガスに晒されることがなくな
り、ヒータ本体を形成する炭素と水素との反応が大幅に
抑制される。[Operation] Therefore, when performing a strength test or the like of the material in the heating furnace, in order to heat the test piece to a high temperature in a state in which the heating furnace is filled with a reducing gas such as hydrogen and kept at high pressure, Even if the heater body is energized and the temperature of the heater body is raised by its own resistance, the heater body is directly exposed to the reducing gas by the carbon protective film made of ceramics such as alumina or titanium oxide having a small hydrogen permeation amount. And the reaction between carbon and hydrogen forming the heater body is greatly suppressed.
［実施例］ 以下、図面に基づいて本考案の実施例を説明する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第１図は本考案の一実施例であり、図中第２、３図と
同一の符号を付した部分は同一のものを表わしており、
基本的な構成は第２、３図に示す従来のものと同様であ
るが、本実施例の特長とするところは、第１図に示す如
く、還元性ガス５に晒されるヒータ本体３の表面に、ア
ルミナ（Al2O3）、酸化チタン（TiO2）等のセラミック
スをスパッタリングやイオンプレーティング等によりコ
ーティングしてカーボン保護膜13を形成した点にある。FIG. 1 shows an embodiment of the present invention, in which the same reference numerals as those in FIGS. 2 and 3 represent the same parts.
The basic structure is the same as that of the conventional one shown in FIGS. 2 and 3, but the feature of this embodiment is that the surface of the heater body 3 exposed to the reducing gas 5 as shown in FIG. In addition, the carbon protective film 13 is formed by coating ceramics such as alumina (Al 2 O 3 ) and titanium oxide (TiO 2 ) by sputtering, ion plating or the like.
前述の如く構成したので、材料の強度試験等を行う際
に、試験片（図示せず）をヒータ本体３内部の軸心位置
に配設すると共に、炉体２内に水素の如き還元性ガス５
を充填して高圧に保持した状態で、前記試験片を高温に
加熱するために、前記ヒータ本体３に通電し該ヒータ本
体３をそれ自体の抵抗によって昇温させても、ヒータ本
体３はカーボン保護膜13により直接還元性ガス５に晒さ
れることがなくなり、ヒータ本体３を形成する炭素と水
素との反応が大幅に抑制される。Since the structure is as described above, a test piece (not shown) is disposed at the axial center position inside the heater body 3 and a reducing gas such as hydrogen is contained in the furnace body 2 when performing the strength test of the material. 5
In order to heat the test piece to a high temperature in a state where the heater body 3 is filled with and is kept at a high pressure, even if the heater body 3 is heated by its own resistance, The protective film 13 prevents direct exposure to the reducing gas 5 and significantly suppresses the reaction between carbon and hydrogen forming the heater body 3.
尚、実験において、700℃、300気圧という高温高圧下
における水素透過量は、カーボン保護膜13を形成しない
場合に比べ半分程度まで低減できることが確認されてい
る。In the experiment, it has been confirmed that the hydrogen permeation amount under high temperature and high pressure of 700 ° C. and 300 atm can be reduced to about half as compared with the case where the carbon protective film 13 is not formed.
こうして、ヒータ本体３の水素との反応による目減り
並びに抵抗値の変化、更には破断等を防止でき、ヒータ
の寿命を延長することが可能となる。In this way, it is possible to prevent the heater main body 3 from being lost due to the reaction with hydrogen, the resistance value being changed, and further being broken, so that the life of the heater can be extended.
尚、本考案の加熱炉用ヒータは、上述の実施例にのみ
限定されるものではなく、本考案の要旨を逸脱しない範
囲内において種々変更を加え得ることは勿論である。The heater for a heating furnace according to the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the gist of the present invention.
［考案の効果］ 以上説明したように本考案の加熱炉用ヒータによれ
ば、ヒータ本体を形成する炭素と水素との反応を大幅に
抑制することができ、ヒータの寿命延長を図れるという
優れた効果を奏し得る。[Advantages of the Invention] As described above, according to the heater for a heating furnace of the present invention, the reaction between carbon and hydrogen forming the heater body can be significantly suppressed, and the life of the heater can be extended. It can be effective.
第１図は本考案の一実施例の要部側断面図、第２図は従
来例の全体側断面図、第３図は第２図のIII−III矢視図
である。 １は加熱炉、２は炉体、３はヒータ本体、５は還元性ガ
ス（還元性雰囲気）、13はカーボン保護膜を示す。1 is a side sectional view of an essential part of an embodiment of the present invention, FIG. 2 is a side sectional view of a conventional example, and FIG. Reference numeral 1 is a heating furnace, 2 is a furnace body, 3 is a heater body, 5 is a reducing gas (reducing atmosphere), and 13 is a carbon protective film.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 片山 典彦 神奈川県横浜市磯子区新中原町１番地 石 川島播磨重工業株式会社技術研究所内 (56)参考文献 特開 平１−208382（ＪＰ，Ａ) 特開 昭59−134585（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Norihiko Katayama, No. 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishi Kawashima Harima Heavy Industries Co., Ltd. Technical Research Institute (56) Reference JP-A 1-208382 (JP, A) JP-A-59-134585 (JP, A)
Claims (1)
囲気に晒されるカーボン製の加熱炉用ヒータにおいて、
ヒータ本体の表面に、水素透過量の少ないアルミナや酸
化チタン等のセラミックスをコーティングしてカーボン
保護膜を形成したことを特徴とする加熱炉用ヒータ。1. A heater for a carbon heating furnace, which is installed in a heating furnace and is exposed to a reducing atmosphere such as hydrogen,
A heater for a heating furnace, characterized in that the surface of the heater body is coated with a ceramic such as alumina or titanium oxide having a low hydrogen permeation amount to form a carbon protective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990127981U JPH081596Y2 (en) | 1990-11-30 | 1990-11-30 | Heater for heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990127981U JPH081596Y2 (en) | 1990-11-30 | 1990-11-30 | Heater for heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0485687U JPH0485687U (en) | 1992-07-24 |
| JPH081596Y2 true JPH081596Y2 (en) | 1996-01-17 |
Family
ID=31875461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990127981U Expired - Lifetime JPH081596Y2 (en) | 1990-11-30 | 1990-11-30 | Heater for heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH081596Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134585A (en) * | 1983-01-21 | 1984-08-02 | ティーディーケイ株式会社 | Structure of heater |
| JPH01208382A (en) * | 1988-02-15 | 1989-08-22 | Tokyo Tungsten Co Ltd | Coating agent and heating element coated with said agent |
-
1990
- 1990-11-30 JP JP1990127981U patent/JPH081596Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0485687U (en) | 1992-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9829390B2 (en) | High-temperature chip with high stability | |
| AU5604186A (en) | High temperature catalyst compositions for internal combustion engine | |
| JPS62182179A (en) | Method of coating non-metal heater | |
| JPS63307489A (en) | Heat roll for toner fixing | |
| JPH081596Y2 (en) | Heater for heating furnace | |
| JP2838346B2 (en) | Ceramic heater and method of manufacturing the same | |
| US5645742A (en) | Glow plug with zirconium dioxide coating and nicraly adhesive layer | |
| JP2003122165A (en) | Electrophotographic image forming device and fixing device therefor | |
| JPS598689B2 (en) | Heating and bearing parts | |
| JPH11335114A (en) | Furnace body of heating furnace for purifying silicon | |
| JP3159035B2 (en) | Heater structure of oxygen sensor | |
| JP2941825B2 (en) | Radiator tube of iron-chromium-aluminum type alloy and method of manufacturing the same | |
| JPH0314689Y2 (en) | ||
| JPH0222895B2 (en) | ||
| JP3113799B2 (en) | Sodium-sulfur battery | |
| JP3103730B2 (en) | Method for manufacturing sodium-sulfur battery and anode container for the same | |
| JPH0140047Y2 (en) | ||
| Murdie et al. | Chemical Additions to Pitches to Improve the Oxidation Resistance of Resultant Carbons | |
| JPS59173682A (en) | Heat-resistant roll | |
| KR940007272B1 (en) | Jig for heat treatment | |
| JP2734840B2 (en) | Contact type thin film thermistor | |
| JP2591022Y2 (en) | Terminal mounting structure | |
| JPH05196299A (en) | Electrothermal converter | |
| JPS62290064A (en) | Fuel cell | |
| JPH098016A (en) | Heat-generating body for heat-treating semiconductor used in oxygen-containing atmosphere |