JP2527388B2 - Small diameter pipe heater - Google Patents
Small diameter pipe heaterInfo
- Publication number
- JP2527388B2 JP2527388B2 JP3162523A JP16252391A JP2527388B2 JP 2527388 B2 JP2527388 B2 JP 2527388B2 JP 3162523 A JP3162523 A JP 3162523A JP 16252391 A JP16252391 A JP 16252391A JP 2527388 B2 JP2527388 B2 JP 2527388B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- wire
- pipe heater
- heating wire
- resistance heating
- 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
- Resistance Heating (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は細径パイプヒーター、特
に直径が６ｍｍ以下の細径パイプヒーターに関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small diameter pipe heater, and more particularly to a small diameter pipe heater having a diameter of 6 mm or less.
【０００２】[0002]
【従来の技術】従来より、例えば多点取りのプラスチッ
ク射出成型用ノズルヒーターや、多点の温度制御を要す
る加熱装置としては多数の細径パイプヒーターが使用さ
れている。2. Description of the Related Art Conventionally, a large number of small-diameter pipe heaters have been used as a nozzle heater for plastic injection molding of multiple points and a heating device that requires temperature control of multiple points.
【０００３】このような従来の細径パイプヒーターでは
電源リード線の発熱を防ぐため図５に示すように、細径
パイプヒーター１の抵抗発熱線２の端部と、充分な断面
積を有する耐熱金属線３の一端とを、例えばＴＩＧ溶接
や、銀ロー付け等の溶接４によって接続し、この接続部
外周を筒状のアダプター５によって囲み、このアダプタ
ー５の一端を細径パイプヒーター１の外被にロー付け等
により固定し、上記アダプター５内に耐熱絶縁材７を充
填せしめると共に、上記耐熱金属線３の他端を上記アダ
プター５外に引き出し接続端子８を介して規定の太さの
電源リード線９に接続し、この電源リード線９に熱が伝
わらないようにしている。なお１０は細径パイプヒータ
ー１内に充填した耐熱絶縁材である。In such a conventional small-diameter pipe heater, as shown in FIG. 5 , in order to prevent heat generation of the power supply lead wire, the end portion of the resistance heating wire 2 of the small-diameter pipe heater 1 and the heat resistance having a sufficient cross-sectional area. One end of the metal wire 3 is connected by welding 4 such as TIG welding or silver brazing, and the outer circumference of this connection portion is surrounded by a cylindrical adapter 5, and one end of this adapter 5 is outside the small-diameter pipe heater 1. The heat-resistant insulating material 7 is filled in the adapter 5 by brazing, and the other end of the heat-resistant metal wire 3 is pulled out of the adapter 5 and connected to the power source of a specified thickness through the connection terminal 8. It is connected to the lead wire 9 so that heat is not transmitted to the power supply lead wire 9. Reference numeral 10 is a heat-resistant insulating material filled in the small-diameter pipe heater 1.
【０００４】[0004]
【発明が解決しようとする課題】然しながら上記アダプ
ター５はその構造上細径パイプヒーターに比べて大径と
なり、このアダプター５の大きさによってパイプヒータ
ーの使用が制限される欠点があった。However, the structure of the adapter 5 is larger than that of the small-diameter pipe heater, and the size of the adapter 5 limits the use of the pipe heater.
【０００５】又、真空シール部分のように、熱膨張、収
縮による気体リークがあってはならない個所などは、細
径パイプヒーターからの伝導熱の影響を極力避ける為、
アダプターの長さを長くしたり、真空シール部を水冷す
るなどの対策を講じる必要があった。In addition, in places such as the vacuum seal portion where gas leakage due to thermal expansion and contraction should not occur, in order to avoid the influence of conduction heat from the small diameter pipe heater as much as possible,
It was necessary to take measures such as lengthening the adapter and cooling the vacuum seal with water.
【０００６】本発明は上記の欠点を除くようにしたもの
である。The present invention eliminates the above drawbacks.
【０００７】[0007]
【課題を解決するための手段】本発明の細径パイプヒー
ターは、管状の抵抗発熱線と、この抵抗発熱線の一部に
挿入した低抵抗の耐熱線とより成る心線と、この心線を
耐熱絶縁材を介して取り囲んだパイプ状の外被と、この
パイプと管状の抵抗発熱線間の空間及び上記低抵抗の耐
熱線が挿入されていない上記管状の抵抗発熱線部分内に
充填された耐熱絶縁物とより成ることを特徴とする。A small-diameter pipe heater according to the present invention comprises a tubular resistance heating wire and a core wire consisting of a low resistance heat-resistant wire inserted in a part of the resistance heating wire, and the core wire. When the envelope pipe-like which surrounds via a heat insulating material, this
The space between the pipe and the tubular resistance heating wire and the resistance of the above low resistance
Inside the tubular resistance heating wire part where the heating wire is not inserted
It is characterized by comprising a heat-resistant insulating material filled .
【０００８】[0008]
【実施例】以下図面によって本発明の実施例を説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】本発明においては図１，図２に示すように
細径パイプヒーター１を所望長さの管状の抵抗発熱線２
ａと、この抵抗発熱線２ａの一部に挿入した鉄やニッケ
ル等の低抵抗の耐熱線２ｂ，２ｂと、上記抵抗発熱線２
ａを取り巻くマグネシアやアルミナ等の耐熱絶縁管１１
と、これを取り巻くパイプ状のステンレススチール等の
外被６とにより構成せしめる。In the present invention, as shown in FIGS. 1 and 2, a small-diameter pipe heater 1 is used as a tubular resistance heating wire 2 having a desired length.
a, heat resistant wires 2b, 2b of low resistance such as iron or nickel inserted in a part of the resistance heating wire 2a, and the resistance heating wire 2
Heat-resistant insulating tube 11 made of magnesia or alumina surrounding a
When occupies was constructed by a jacket 6 such as a pipe-like stainless steel surrounding it.
【００１０】また、上記管状の抵抗発熱線２ａ内の上記
低抵抗の耐熱線２ｂが挿入されていない部分にはマグネ
シアやアルミナ等の耐熱絶縁材１２を充填し、これを図
３，図４のように圧縮減径して所望の直径ならしめる。 Further, the portions heat line 2b of the low resistance in the resistance heating wire 2a of the tubular is not inserted and filled with heat insulating material 12 such as a magnetic <br/> sheet A and alumina, it Figure
3. As shown in FIG. 4 , the diameter is reduced by compression to obtain a desired diameter .
【００１１】[0011]
【発明の効果】本発明の細径パイプヒーターは上記のよ
うな構成であるから、減径の結果、内部の管状の抵抗発
熱線２ａも減径し、その中に通した低抵抗の耐熱線２ｂ
に圧接され、一体化し、この部分は非発熱部となり、従
ってこの低抵抗の耐熱線２ｂにアダプターを介すること
なく接続端子８を介して直接電源リード線９を接続で
き、又、任意の部分のみを発熱部とすることができ、従
って発熱を必要としない個所や発熱してはならない個所
を含む部分の加熱用として使用でき、使用個所の制限を
受けず用途を大きく拡大できる等大きな利益がある。Since the small-diameter pipe heater of the present invention has the above-described structure, the diameter of the internal resistance heating wire 2a is also reduced as a result of the diameter reduction, and the heat resistance wire of low resistance passed through the resistance heating wire 2a. 2b
This part becomes a non-heat generating part by being pressure-welded to and integrated with it, and therefore the power lead wire 9 can be directly connected to this low resistance heat resistant wire 2b through the connection terminal 8 without an adapter, and only an arbitrary part. Since it can be used as a heat generating part, it can be used for heating a part that does not require heat generation and a part including a part that should not generate heat. .
【００１２】また、図３及び図４に示すように、管状の
抵抗発熱線２ａ内に耐熱絶縁材１２を入れた実施例で
は、管状の抵抗発熱線２ａの減径の割合が、これを入れ
ない場合に比べて小さく、管状の抵抗発熱線２ａと、外
被６間の距離を小さく出来るので、これらの相互間の温
度差を小さく出来、より高温で使用出来る利点がある。Further, as shown in FIGS. 3 and 4 , in the embodiment in which the heat resistant insulating material 12 is inserted in the tubular resistance heating wire 2a, the diameter reduction ratio of the tubular resistance heating wire 2a is Since the distance between the tubular resistance heating wire 2a and the jacket 6 can be made smaller than that of the case in which it is not provided, the temperature difference between them can be made small, and there is an advantage that it can be used at a higher temperature.
【図１】本発明の細径パイプヒーターの説明用縦断正面
図である。FIG. 1 is a vertical sectional front view for explaining a small-diameter pipe heater of the present invention.
【図２】本発明の細径パイプヒーターの説明用縦断側面
図である。FIG. 2 is a vertical sectional side view for explaining a thin pipe heater of the present invention.
【図３】本発明の細径パイプヒーターの縦断正面図であ
る。FIG. 3 is a vertical sectional front view of the small diameter pipe heater of the present invention.
【図４】本発明の細径パイプヒーターの縦断側面図であ
る。FIG. 4 is a vertical sectional side view of the thin pipe heater of the present invention.
【図５】従来の細径パイプヒーターの説明用縦断正面図
である。FIG. 5 is a vertical sectional front view for explaining a conventional small diameter pipe heater.
１ 細径パイプヒーター ２ 管状の抵抗発熱線 ２ａ 管状の抵抗発熱線 ２ｂ 耐熱線 ３ 耐熱金属線 ４ 溶接 ５ アダプター ６ 外被 ７ 耐熱絶縁材 ８ 接続端子 ９ 電源リード線 １０ 耐熱絶縁材 １１ 耐熱絶縁管 １２ 耐熱絶縁材 1 Thin Pipe Heater 2 Tubular Resistance Heating Wire 2a Tubular Resistance Heating Wire 2b Heat Resistant Wire 3 Heat Resistant Metal Wire 4 Welding 5 Adapter 6 Outer Cover 7 Heat Resistant Insulation Material 8 Connection Terminal 9 Power Lead Wire 10 Heat Resistant Insulation Material 11 Heat Resistant Insulation Tube 12 Heat-resistant insulation
Claims (1)
一部に挿入した低抵抗の耐熱線とより成る心線と、この
心線を耐熱絶縁材を介して取り囲んだパイプ状の外被
と、このパイプと管状の抵抗発熱線間の空間及び上記低
抵抗の耐熱線が挿入されていない上記管状の抵抗発熱線
部分内に充填された耐熱絶縁物とより成ることを特徴と
する細径パイプヒーター。1. A core wire consisting of a tubular resistance heating wire and a low resistance heat resistant wire inserted in a part of the resistance heating wire, and a pipe-shaped outer surface surrounding the core wire with a heat resistant insulating material. The space between the pipe and the tubular resistance heating wire and the above
Above tubular resistance heating wire without heat resistance wire inserted
A small-diameter pipe heater, characterized by being made of a heat-resistant insulating material filled in the portion .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3162523A JP2527388B2 (en) | 1991-06-07 | 1991-06-07 | Small diameter pipe heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3162523A JP2527388B2 (en) | 1991-06-07 | 1991-06-07 | Small diameter pipe heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04363889A JPH04363889A (en) | 1992-12-16 |
| JP2527388B2 true JP2527388B2 (en) | 1996-08-21 |
Family
ID=15756243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3162523A Expired - Fee Related JP2527388B2 (en) | 1991-06-07 | 1991-06-07 | Small diameter pipe heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527388B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2527387B2 (en) * | 1991-06-07 | 1996-08-21 | 坂口電熱株式会社 | Small diameter pipe heater |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50120971A (en) * | 1974-03-09 | 1975-09-22 | ||
| JPS6211199Y2 (en) * | 1978-10-07 | 1987-03-16 | ||
| JPS5615120A (en) * | 1979-07-18 | 1981-02-13 | Mitsubishi Electric Corp | Insulating bus for dividing bus equipped with solid insulation switching facility |
-
1991
- 1991-06-07 JP JP3162523A patent/JP2527388B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04363889A (en) | 1992-12-16 |
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