JPS5455838A - Manufacturing method of sheathed heater - Google Patents
Manufacturing method of sheathed heaterInfo
- Publication number
- JPS5455838A JPS5455838A JP12213077A JP12213077A JPS5455838A JP S5455838 A JPS5455838 A JP S5455838A JP 12213077 A JP12213077 A JP 12213077A JP 12213077 A JP12213077 A JP 12213077A JP S5455838 A JPS5455838 A JP S5455838A
- Authority
- JP
- Japan
- Prior art keywords
- sheathed heater
- manufacturing
- pipe
- metal pipe
- quality
- 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.)
- Pending
Links
Landscapes
- Resistance Heating (AREA)
Abstract
PURPOSE: To improve the quality of a sheathed heater, by throttling only the portion of bending work of a metal pipe.
CONSTITUTION: A heating wire 2 welding with terminal 1 is inserted in the center of a metal pipe 3 and the clearance between the pipe 3 and the wire 2 is filled with insulating filler 4. Then, only the point A where the sheathed heater is bent is throttled. This makes the density of filler at the point A increased and the heating wire 2 fixed at the center of the metal pipe 1, eliminating the eccentricity otherwise to be caused at the time of bending. The partial throttling of the pipe makes the work very easy. As a whole this manufacturing method can improve the electric insulation and quality of the sheathed heater
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12213077A JPS5455838A (en) | 1977-10-12 | 1977-10-12 | Manufacturing method of sheathed heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12213077A JPS5455838A (en) | 1977-10-12 | 1977-10-12 | Manufacturing method of sheathed heater |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5455838A true JPS5455838A (en) | 1979-05-04 |
Family
ID=14828350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12213077A Pending JPS5455838A (en) | 1977-10-12 | 1977-10-12 | Manufacturing method of sheathed heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5455838A (en) |
-
1977
- 1977-10-12 JP JP12213077A patent/JPS5455838A/en active Pending
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