CN2249480Y - Heating rod - Google Patents
Heating rod Download PDFInfo
- Publication number
- CN2249480Y CN2249480Y CN 95223724 CN95223724U CN2249480Y CN 2249480 Y CN2249480 Y CN 2249480Y CN 95223724 CN95223724 CN 95223724 CN 95223724 U CN95223724 U CN 95223724U CN 2249480 Y CN2249480 Y CN 2249480Y
- Authority
- CN
- China
- Prior art keywords
- heating rod
- ceramic heat
- metal sleeve
- rod
- utility
- 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
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- Resistance Heating (AREA)
Abstract
The utility model relates to a heating rod, which is a thermal element. The utility model is characterized in that the excircle of a ceramic heating rod (1) is added with a circle of metal sleeve (2) and the length of the metal sleeve (2) is the same to the ceramic heating rod or is somewhat longer than the ceramic heating rod. The ceramic heating rod is tight surrounded by the metal sleeve. When cracks appear on the ceram, the contact of the air and a central thermal resistor can be isolated by the metal sleeve. Thus the oxidation time of the thermal resistor wire can be prolonged and the service life of the heating rod is prolonged.
Description
The utility model belongs to the technical field of thermal element.
The present ceramic heat rod of China, because of the back ceramic material that is heated produces the crack, use a period of time after, oxidized the blowing of hot water radiation wire and scrapping, so useful life is short, often replacing.
The purpose of this utility model is in order to improve the useful life of heating rod, to extend working time.
The purpose of this utility model adopts following measure to realize, cylindrical at existing ceramic heat rod (1) increases by a circle metallic sheath (2), and its length is identical with the ceramic heat rod or slightly long, and the casing wall thickness of metallic sheath is 0.5～3mm, its material is aluminium or steel, also can be cylinder iron or steel.
The utility model has the advantages that metallic sheath closely surrounds the ceramic heat rod, under the situation of ceramic fracture, secluding air contacts with hot water radiation wire, thereby has prolonged the useful life of hot water radiation wire.
Description of drawings is as follows:
Figure is the structural representation of heating rod
1-ceramic heat rod 2-metallic sheath
The utility model is further described in conjunction with the accompanying drawings, ceramic heat rod (1) is placed on the central authorities of mold, pour into molten metal, take out after cooling, cylindrical forms through machined into, its length is with the ceramic heat rod, also can use the metal tube material, the endoporus preboring makes diameter of bore be slightly less than the external diameter of ceramic heat rod, the heating metal pipe material, make its expanded by heating, add the ceramic heat rod, cooling is after machined into becomes the external diameter of certain size and with the length of ceramic heat rod, the folding mould that this product is mainly used in the damp and hot machine of toe lasting uses as heating element, also can be used for other and needs using as thermal element of heating products.
Claims (3)
1, thermal element heating rod has ceramic heat rod (1), and it is characterized in that increases by a circle metallic sheath (2) at the cylindrical of ceramic heat rod, and its length is identical with the ceramic heat rod or slightly long.
2, heating rod according to claim 1, the casing wall thickness that it is characterized in that metallic sheath (2) is 0.5～3mm.
3, heating rod according to claim 1, the material that it is characterized in that metallic sheath (2) is aluminium or copper material, also can be cast iron or steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95223724 CN2249480Y (en) | 1995-09-29 | 1995-09-29 | Heating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95223724 CN2249480Y (en) | 1995-09-29 | 1995-09-29 | Heating rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2249480Y true CN2249480Y (en) | 1997-03-12 |
Family
ID=33870699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95223724 Expired - Fee Related CN2249480Y (en) | 1995-09-29 | 1995-09-29 | Heating rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2249480Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317320A (en) * | 2013-05-23 | 2013-09-25 | 西安交通大学 | Efficient precise blanking method for pipe thermal stress prefabrication microcracks |
| CN111378817A (en) * | 2020-04-16 | 2020-07-07 | 哈尔滨汽轮机厂有限责任公司 | Inner wall heating device and heat treatment method using same |
-
1995
- 1995-09-29 CN CN 95223724 patent/CN2249480Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317320A (en) * | 2013-05-23 | 2013-09-25 | 西安交通大学 | Efficient precise blanking method for pipe thermal stress prefabrication microcracks |
| CN111378817A (en) * | 2020-04-16 | 2020-07-07 | 哈尔滨汽轮机厂有限责任公司 | Inner wall heating device and heat treatment method using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |