JPH04363886A - Small-diameter pipe heater - Google Patents
Small-diameter pipe heaterInfo
- Publication number
- JPH04363886A JPH04363886A JP16229891A JP16229891A JPH04363886A JP H04363886 A JPH04363886 A JP H04363886A JP 16229891 A JP16229891 A JP 16229891A JP 16229891 A JP16229891 A JP 16229891A JP H04363886 A JPH04363886 A JP H04363886A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- heat
- pipe heater
- diameter pipe
- small
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000011810 insulating material Substances 0.000 claims description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 7
- 239000012212 insulator Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 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
- 238000005219 brazing Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
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, particularly a small-diameter pipe heater with 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, for example, as multi-point nozzle heaters for plastic injection molding or as heating devices that require multi-point temperature control.
【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, in order to prevent heat generation in the power supply lead wire, as shown in FIG. One end of the metal wire 3 is connected by welding 4 such as TIG welding or silver brazing, and the outer periphery of this connection is surrounded by a cylindrical adapter 5. The heat-resistant insulating material 7 is filled inside the adapter 5, and the other end of the heat-resistant metal wire 3 is pulled out of the adapter 5 and connected to a power source of a specified thickness via the connection terminal 8. It is connected to the lead wire 9 to prevent heat from being transferred to the power lead wire 9. Note that 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, due to its structure, the adapter 5 has a larger diameter than a small-diameter pipe heater, and the size of the adapter 5 has the disadvantage that the use of the pipe heater is restricted.
【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。[0005] Also, in places such as vacuum seals where there should be no gas leakage due to thermal expansion or contraction, 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 increasing the length of the adapter and water-cooling the vacuum seal.
【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 seeks to eliminate the above-mentioned 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
ターは抵抗発熱線と、この抵抗発熱線の一部に添設した
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より成ることを
特徴とする。[Means for Solving the Problems] The small diameter pipe heater of the present invention has a core wire consisting of a resistance heating wire, a low resistance heat resistant wire attached to a part of the resistance heating wire, and a heat resistant wire. It is characterized by consisting of a pipe-shaped outer covering surrounded by an insulating material.
【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
。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be explained 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を所望長さの抵抗発熱線２ａと、
この抵抗発熱線２ａの一部により合わせるか、単に添わ
せた鉄やニッケル等の低抵抗の耐熱線２ｂ，２ｂと、こ
れらを取り巻くマグネシアやアルミナ等の耐熱絶縁管１
１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とにより構成し、このようにした細径パイプヒ
ーター１を減径機（図示せず）によって図３，図４に示
すように圧縮減径して所望の直径ならしめる。In the present invention, as shown in FIGS. 1 and 2, a small diameter pipe heater 1 is connected to a resistance heating wire 2a of a desired length,
Low-resistance heat-resistant wires 2b, 2b made of iron, nickel, etc. that are tied together or simply attached to a part of this resistance heating wire 2a, and a heat-resistant insulating tube 1 made of magnesia, alumina, etc. surrounding these wires.
The small-diameter pipe heater 1 is compressed by a diameter reducer (not shown) as shown in FIGS. 3 and 4. Reduce the diameter to the desired diameter.
【００１０】0010
【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低抵抗の耐熱線２ｂが抵
抗発熱線２ａに圧接され、低抵抗の耐熱線２ｂが添設さ
れた抵抗発熱線２ａ部分は抵抗が少なくなるため非発熱
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または非発
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。[Effects of the Invention] Since the small-diameter pipe heater of the present invention has the above-described configuration, as a result of diameter reduction, the low resistance heat-resistant wire 2b is pressed against the resistance heating wire 2a, and the low-resistance heat-resistant wire 2b is attached. The resistive heat-generating wire 2a has a low resistance and therefore becomes a non-heat-generating portion. Therefore, the power supply lead wire 9 can be directly connected to the low resistance heat-resistant wire 2b via the connecting terminal 8 without using an adapter. Only the parts can be heat generating parts or non-heat generating parts, so it can be used to heat parts that do not require heat generation or should not generate heat, greatly expanding the range of applications without being limited by the place of use. There are great benefits such as being able to do so.
【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 an explanatory longitudinal sectional front view of 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 an explanatory longitudinal cross-sectional side view of the small-diameter 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 longitudinal 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 longitudinal sectional side view of the small diameter 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 an explanatory longitudinal sectional front view of a conventional small-diameter pipe heater.
１ 細径パイプヒーター ２ 抵抗発熱線 ２ａ 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 1. Small diameter pipe heater 2 Resistance heating wire 2a 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
Claims (1)
に添設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より
成ることを特徴とする細径パイプヒーター。Claim 1: A core wire consisting of a resistance heating wire, a low-resistance heat-resistant wire attached to a part of the resistance heating wire, and a pipe-shaped jacket surrounding the core wire with a heat-resistant insulating material interposed therebetween. A small diameter pipe heater characterized by consisting of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3162298A JPH081824B2 (en) | 1991-06-07 | 1991-06-07 | Small diameter pipe heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3162298A JPH081824B2 (en) | 1991-06-07 | 1991-06-07 | Small diameter pipe heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04363886A true JPH04363886A (en) | 1992-12-16 |
| JPH081824B2 JPH081824B2 (en) | 1996-01-10 |
Family
ID=15751841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3162298A Expired - Fee Related JPH081824B2 (en) | 1991-06-07 | 1991-06-07 | Small diameter pipe heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH081824B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 JP3162298A patent/JPH081824B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615120A (en) * | 1979-07-18 | 1981-02-13 | Mitsubishi Electric Corp | Insulating bus for dividing bus equipped with solid insulation switching facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH081824B2 (en) | 1996-01-10 |
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