JPH059833Y2 - - Google Patents
Info
- Publication number
- JPH059833Y2 JPH059833Y2 JP1987102667U JP10266787U JPH059833Y2 JP H059833 Y2 JPH059833 Y2 JP H059833Y2 JP 1987102667 U JP1987102667 U JP 1987102667U JP 10266787 U JP10266787 U JP 10266787U JP H059833 Y2 JPH059833 Y2 JP H059833Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- cap
- insulating cover
- furnace
- cover
- 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
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000011796 hollow space material Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000001816 cooling Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Resistance Heating (AREA)
- Furnace Details (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、高温熱処理を行う炉のヒーターに
電気を供給するための電極に関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an electrode for supplying electricity to a heater in a furnace that performs high-temperature heat treatment.
（従来技術）
高温熱処理を行う炉のヒーターに電気を供給す
る電極は、電気抵抗を下げるため水冷方式等によ
り一部を冷却する型のものが用いられている。以
下、従来例を第２図により説明する。(Prior Art) Electrodes that supply electricity to heaters in furnaces that perform high-temperature heat treatment are of a type that is partially cooled by water cooling or the like in order to lower electrical resistance. A conventional example will be explained below with reference to FIG.
本例で電極は耐熱性は小さいが冷却効率のよい
銅製電極１と耐熱性のある炭素製電極２とを結合
したものが用いられている。銅製電極１は内部に
穴３があけられ、該穴に冷却水を導入して銅製電
極１を冷却している。これにより、銅製電極のう
ち穴３の付近の部分が冷却される。銅製電極１の
穴３の周囲はテフロン製の絶縁性カバー５で覆わ
れ炉体との間の絶縁がなされている。 In this example, the electrode used is a combination of a copper electrode 1 having low heat resistance but good cooling efficiency and a heat resistant carbon electrode 2. A hole 3 is bored inside the copper electrode 1, and cooling water is introduced into the hole to cool the copper electrode 1. As a result, the portion of the copper electrode near the hole 3 is cooled. The area around the hole 3 of the copper electrode 1 is covered with an insulating cover 5 made of Teflon to insulate it from the furnace body.
（発明が解決しようとする問題点）
上記従来例では、以下のような問題点があつ
た。(Problems to be Solved by the Invention) The above conventional example had the following problems.
金属、セラミツク等を処理する粉末焼結炉や、
熱処理炉の場合、被処理物（以下、ワークとい
う。）からバインダー、金属ベーパー等が発生し、
これが炉内の低温部である水冷電極等の冷却部分
に付着する。水冷電極は接地されている炉体との
間の絶縁を炉内で最も必要とする部分であるが、
従来例では、電極と炉体との間を絶縁する絶縁性
カバー表面に導電物質の金属ベーパーが付着する
と、電極と炉体との間で短絡が生じて大事故が起
こる危険がある。 Powder sintering furnaces for processing metals, ceramics, etc.
In the case of a heat treatment furnace, binder, metal vapor, etc. are generated from the object to be treated (hereinafter referred to as the work).
This adheres to cooling parts such as water-cooled electrodes, which are the low-temperature parts of the furnace. The water-cooled electrode is the part of the furnace that most requires insulation between it and the grounded furnace body.
In the conventional example, if metal vapor, which is a conductive substance, adheres to the surface of an insulating cover that insulates between the electrode and the furnace body, there is a risk that a short circuit will occur between the electrode and the furnace body, resulting in a major accident.
また、炉心からの熱輻射が絶縁性カバー先端部
付近に当たるので、この部分の温度が上昇する。 Furthermore, since thermal radiation from the core hits the vicinity of the tip of the insulating cover, the temperature of this area increases.
この考案は、以上のような問題点を解決するも
のである。 This invention solves the above problems.
（問題点を解決するための手段）
熱処理炉用電極の炉壁に固定する部分の付近を
絶縁性カバーで帯状に覆い、また、該電極の炉内
部に入る部分の一部を表面が絶縁状態のキヤツプ
で帯状に覆い、かつ、キヤツプは、絶縁性カバー
との間に空部を有して該絶縁性カバーの周囲を覆
う形状としたものである。(Means for solving the problem) The vicinity of the part of the electrode for a heat treatment furnace that is fixed to the furnace wall is covered with an insulating cover in the form of a band, and a part of the part of the electrode that enters the inside of the furnace is covered with an insulating surface. The cap is covered in a band shape with a cap, and the cap has a hollow space between it and the insulating cover so as to cover the periphery of the insulating cover.
（作用）
炉心から飛来する金属ベーパー等は、キヤツプ
６で遮られるため、絶縁性カバーの先端部付近の
冷却部等に付着しない。また、炉心からの熱 射
もキヤツプ６で遮られるため、電極の絶縁性カバ
ーの先端部付近の冷却部に当たらないのでこの部
分の温度上昇を防止することができる。(Function) Metal vapor and the like flying from the reactor core are blocked by the cap 6, so that they do not adhere to the cooling parts, etc. near the tip of the insulating cover. In addition, since the heat radiation from the core is blocked by the cap 6, it does not hit the cooling part near the tip of the insulating cover of the electrode, so it is possible to prevent a rise in temperature in this part.
（実施例）
本考案の実施例を第１図及び第３図によつて説
明する。(Example) An example of the present invention will be described with reference to FIGS. 1 and 3.
本実施例は、従来例に第１図のような形状のキ
ヤツプ６を付加したものである。本実施例では、
キヤツプは絶縁物であるボロンナイトライドで絶
縁コーテイグしたステンレス等の金属を用いてい
る。キヤツプは、ネジ止め部７で銅製電極１に固
定されている。キヤツプの材質としては、このほ
かセラミツク等の耐熱性物質を用いることができ
る。この場合にネジが切れないときは、第３図に
示すように電極に段差部９を設け、該段差部と金
属ナツト１０でキヤツプを挟むことによりこれを
固定することができる。 In this embodiment, a cap 6 having a shape as shown in FIG. 1 is added to the conventional example. In this example,
The cap is made of metal such as stainless steel coated with an insulating boron nitride. The cap is fixed to the copper electrode 1 with screws 7. In addition to this, heat-resistant materials such as ceramics can be used as the material for the cap. In this case, if the screw cannot be cut, the electrode can be fixed by providing a stepped portion 9 as shown in FIG. 3 and sandwiching the cap between the stepped portion and a metal nut 10.
本考案の考え方は、水冷電極のみならず、ヒー
ター炉内で支える水冷支持具に対しても適用でき
る。 The idea of the present invention can be applied not only to water-cooled electrodes but also to water-cooled supports that are supported in heater furnaces.
（効果）
本考案によれば、ワークから発生するバインダ
ー、金属ベーパー等が絶縁カバー表面に付着しな
いため、電極と炉体との間の絶縁破壊を防ぐこと
ができる。また、キヤツプにより炉心からの熱輻
射が電極に直接当たり温度を上昇させるのを防ぐ
ことができる。(Effects) According to the present invention, binder, metal vapor, etc. generated from the workpiece do not adhere to the surface of the insulating cover, thereby preventing dielectric breakdown between the electrode and the furnace body. The cap also prevents thermal radiation from the core from directly hitting the electrodes and increasing the temperature.
第１図は、本考案の１実施例の側面図（断面
図）を、第２図は従来例の側面図（断面図）を、
第３図は本考案の他の実施例のキヤツプ部付近の
側面図（断面図）を示す。
１……銅製電極、２……炭素製電極、３……銅
製電極の穴、４……炉体、５……絶縁性カバー、
６……キヤツプ、７……ネジ止め部、８……炉内
部、９……段差部、１０……金属ナツト、１１…
…電極止め具、１２……取付フランジ、１３……
電極端子、１４……ボルト、１５……硬質ナイロ
ン製絶縁治具。
FIG. 1 is a side view (cross-sectional view) of one embodiment of the present invention, and FIG. 2 is a side view (cross-sectional view) of a conventional example.
FIG. 3 shows a side view (cross-sectional view) of the vicinity of the cap portion of another embodiment of the present invention. 1... Copper electrode, 2... Carbon electrode, 3... Copper electrode hole, 4... Furnace body, 5... Insulating cover,
6... Cap, 7... Screwed part, 8... Furnace inside, 9... Step part, 10... Metal nut, 11...
...Electrode stopper, 12...Mounting flange, 13...
Electrode terminal, 14... Bolt, 15... Hard nylon insulation jig.
Claims (1)
壁に固定する部分に接しこの周囲を帯状に覆う絶
縁性カバー、及び、該電極の炉内部に入る部分の
一部に接しこの周囲を帯状に覆う表面が絶縁状態
のキヤツプからなり、該キヤツプは、該絶縁性カ
バーとの間に空部を有して該絶縁性カバーの周囲
を覆う形状としたことを特徴とする短絡防止型電
極。 An electrode for a heat treatment furnace whose shape is a rod, an insulating cover that contacts a part of the electrode that is fixed to the furnace wall and covers the circumference in a band shape, and an insulating cover that contacts a part of the part of the electrode that goes into the furnace and covers the circumference in a band shape. 1. A short-circuit prevention type electrode comprising a cap whose surface covering the cap is insulated, and the cap is shaped to cover the periphery of the insulating cover with a hollow space between the cap and the insulating cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987102667U JPH059833Y2 (en) | 1987-07-06 | 1987-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987102667U JPH059833Y2 (en) | 1987-07-06 | 1987-07-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS649391U JPS649391U (en) | 1989-01-19 |
| JPH059833Y2 true JPH059833Y2 (en) | 1993-03-10 |
Family
ID=31332785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987102667U Expired - Lifetime JPH059833Y2 (en) | 1987-07-06 | 1987-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH059833Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5996691A (en) * | 1982-11-24 | 1984-06-04 | 東レ株式会社 | Resistance heating furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5890694U (en) * | 1981-12-15 | 1983-06-20 | 富士電波工業株式会社 | Electric furnace power supply device |
-
1987
- 1987-07-06 JP JP1987102667U patent/JPH059833Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5996691A (en) * | 1982-11-24 | 1984-06-04 | 東レ株式会社 | Resistance heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS649391U (en) | 1989-01-19 |
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