JPS6324627Y2 - - Google Patents
Info
- Publication number
- JPS6324627Y2 JPS6324627Y2 JP1980074282U JP7428280U JPS6324627Y2 JP S6324627 Y2 JPS6324627 Y2 JP S6324627Y2 JP 1980074282 U JP1980074282 U JP 1980074282U JP 7428280 U JP7428280 U JP 7428280U JP S6324627 Y2 JPS6324627 Y2 JP S6324627Y2
- Authority
- JP
- Japan
- Prior art keywords
- metal pipe
- ceramic layer
- heating element
- ceramic
- electrical insulator
- 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
Links
- 239000000919 ceramic Substances 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 239000000615 nonconductor Substances 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Description
【考案の詳細な説明】
本考案は赤外線ヒータなどに使用される発熱体
に関するものである。[Detailed Description of the Invention] The present invention relates to a heating element used in infrared heaters and the like.
従来のこの種発熱体は金属パイプ内に電気絶縁
物を充てんし、この電気絶縁物中にコイル状のヒ
ータ線を埋設した構成からなり、その構造は強固
で、しかも電気的に安全である長所がある反面、
その金属パイプはステンレス系材料で作られてい
るため、輻材率が低い短所がある。 Conventional heating elements of this type consist of a metal pipe filled with an electrical insulator and a coiled heater wire buried in the electrical insulator.The structure is strong and electrically safe. On the other hand,
Since the metal pipe is made of stainless steel material, it has a disadvantage of low radiant rate.
本考案は上記欠点を解消し、熱的性質の安定し
た高輻射層を備えた発熱体を提供することを目的
とするもので、金属パイプ内に充てんされた電気
絶縁物中にヒータ線を埋設してなる発熱体におい
て、前記金属パイプの表面上にセラミツクフアイ
バーによつて筒状に成形されたセラミツクス層を
設けることを特徴とするものである。 The purpose of this invention is to eliminate the above-mentioned drawbacks and provide a heating element equipped with a high radiation layer with stable thermal properties.The heater wire is buried in an electrical insulator filled in a metal pipe. The heating element is characterized in that a ceramic layer formed into a cylindrical shape from ceramic fiber is provided on the surface of the metal pipe.
以下本考案の一実施例を図面について説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
図において、１は金属パイプで、その内部には
電気絶縁物が充てんされ、かつこの電気絶縁物中
にコイル状のヒータ線（図示せず）が埋設されて
いる。２は金属パイプ１の表面にかん合できるよ
う筒状に成形されたアルミナおよびシリカなどを
主成分とするセラミツクフアイバーよりなるセラ
ミツクス層、３はそのセラミツクス層２の端部に
取付けられたリング状の締付金具、４は炭化ケイ
素の繊維又は粉末を主成分とする被覆層で、この
被覆層４はリン酸アルミ系の無機接着材を介して
前記セラミツクス層２の表面に接着されている。
５は金属パイプ１の一端に取付けられたソケツト
金具で、このソケツト金具５は金属パイプ１内の
ヒータ線（図示せず）に接続されている。 In the figure, 1 is a metal pipe, the inside of which is filled with an electrical insulator, and a coiled heater wire (not shown) is embedded in the electrical insulator. 2 is a ceramic layer made of ceramic fiber mainly composed of alumina and silica, which is formed into a cylindrical shape so that it can be fitted onto the surface of the metal pipe 1; 3 is a ring-shaped ceramic layer attached to the end of the ceramic layer 2; The fastener 4 is a coating layer mainly composed of silicon carbide fibers or powder, and this coating layer 4 is adhered to the surface of the ceramic layer 2 via an inorganic adhesive based on aluminum phosphate.
Reference numeral 5 denotes a socket fitting attached to one end of the metal pipe 1, and this socket fitting 5 is connected to a heater wire (not shown) inside the metal pipe 1.
本実施例は上記のように金属パイプ１の表面に
耐熱シヨツク性および耐熱性などの熱的特性の優
れたセラミツクスフアイバーよりなるセラミツク
ス層２を設けたので、金属パイプ単体で使用する
ときに比べて輻射エネルギーが増大し、かつ機械
的強度も増大する。また金属パイプ１とセラミツ
クス層２との接合に無機接着材を使用し、かつ前
記セラミツクス層２の端部を締付金具３により固
定すれば、化学的および機械的に堅固な構造とす
ることができる。 In this embodiment, as described above, the ceramic layer 2 made of ceramic fiber having excellent thermal properties such as heat shock resistance and heat resistance is provided on the surface of the metal pipe 1, so that the ceramic layer 2 is made of ceramic fiber with excellent thermal properties such as heat resistance and heat resistance. Radiant energy increases and mechanical strength also increases. Furthermore, if an inorganic adhesive is used to bond the metal pipe 1 and the ceramic layer 2, and the end of the ceramic layer 2 is fixed with a fastener 3, a chemically and mechanically strong structure can be obtained. can.
さらに輻射率を向上させるためにセラミツクス
層２の表面上に接着された被覆層４の主成分は炭
化ケイ素であり、かつこの炭化ケイ素は前記セラ
ミツクス層２と熱膨張が同一であるから、長期間
使用しても経時的に変化する恐れがない。 Furthermore, the main component of the coating layer 4 bonded on the surface of the ceramic layer 2 in order to improve the emissivity is silicon carbide, and since this silicon carbide has the same thermal expansion as the ceramic layer 2, it can be used for a long period of time. There is no fear that it will change over time even after use.
以上説明したように考案によれば、輻射効率が
よく、かつ熱的性質の安定した発熱体をうること
ができる。 As explained above, according to the invention, a heating element with good radiation efficiency and stable thermal properties can be obtained.
図面は本考案の発熱体の一実施例を示す要部断
面図である。
１…金属パイプ、２…セラミツクス層、３…被
覆層。
The drawing is a sectional view of essential parts showing an embodiment of the heating element of the present invention. 1...Metal pipe, 2...Ceramics layer, 3...Coating layer.
Claims (1)
ータ線を埋設してなる発熱体において、前記金属
パイプの表面にセラミツクフアイバーによつて筒
状に成形されたセラミツクス層を設けるととも
に、このセラミツクス層の表面に無機接着材を介
して炭化ケイ素を主成分とする被覆層を設けたこ
とを特徴とする発熱体。 In a heating element in which a heater wire is embedded in an electrical insulator filled in a metal pipe, a ceramic layer formed into a cylindrical shape using ceramic fiber is provided on the surface of the metal pipe, and the ceramic layer is A heating element characterized in that a coating layer mainly composed of silicon carbide is provided on the surface with an inorganic adhesive interposed therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980074282U JPS6324627Y2 (en) | 1980-05-29 | 1980-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980074282U JPS6324627Y2 (en) | 1980-05-29 | 1980-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56175990U JPS56175990U (en) | 1981-12-25 |
| JPS6324627Y2 true JPS6324627Y2 (en) | 1988-07-06 |
Family
ID=29437006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980074282U Expired JPS6324627Y2 (en) | 1980-05-29 | 1980-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324627Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4830130A (en) * | 1971-08-24 | 1973-04-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5511585Y2 (en) * | 1974-06-20 | 1980-03-13 |
-
1980
- 1980-05-29 JP JP1980074282U patent/JPS6324627Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4830130A (en) * | 1971-08-24 | 1973-04-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56175990U (en) | 1981-12-25 |
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