CN2203307Y - Heating radiation pipe for cementing and quenching furnace - Google Patents
Heating radiation pipe for cementing and quenching furnace Download PDFInfo
- Publication number
- CN2203307Y CN2203307Y CN 94242719 CN94242719U CN2203307Y CN 2203307 Y CN2203307 Y CN 2203307Y CN 94242719 CN94242719 CN 94242719 CN 94242719 U CN94242719 U CN 94242719U CN 2203307 Y CN2203307 Y CN 2203307Y
- Authority
- CN
- China
- Prior art keywords
- radiation pipe
- electric heating
- heating wire
- carburizing
- nichrome wire
- 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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Abstract
The utility model relates to a heating radiation pipe for carburizing and quenching furnaces, which is characterized in that the heating radiation pipe for carburizing and quenching furnaces comprises a tubular radiation pipe [6] whose one end head is closed, an electric heating wire [5] arranged in the inner cavity of the radiation pipe and a porcelain plate [2] plugged to the other end port of the radiation pipe. The electric heating wire [5] is placed on a shelf plate [4]. A heat insulated asbestos layer [3] is filled between the porcelain plate [2] and the electric heating wire [5] in the inner cavity of the radiation pipe [6]. The electric heating wire of the utility model can not be crisp caused by carburization. Thus the service life of the electric heating wire can be lengthened, and the electric heating wire can be directly pulled from a ceramic pipe without stopping production for maintenance when the electric heating wire is damaged. The utility model can be used as the heating device of the carburizing and quenching furnaces.
Description
The utility model relates to a kind of carburizing glowing furnace.
In the prior art, heating radiation pipe is widely used as the heating unit of carburizing glowing furnace.Because carburizing glowing furnace is mainly used in workpiece carbonization, so the resistance wire that directly is exposed in the quenching burner hearth also can embrittlement, adhesion owing to carburizing, after resistance wire lost efficacy, need to stop production and broken resistance wire in burner hearth pulled out, its in work-ing life weak point, maintenance difficult.
The purpose of this utility model is to provide a kind of heating radiation pipe of carburizing glowing furnace of long service life.
The technical solution of the utility model is: it comprises the tubulose radiator tube of termination sealing, the nichrome wire that places the radiator tube inner chamber, the porcelain plate of plug on the radiator tube another port, described nichrome wire places on the shelf, is filled with the asbestos layer of thermal resistance between porcelain plate in the described radiator tube inner chamber and the nichrome wire.
The utility model compared with prior art has following advantage:
(1). nichrome wire is arranged in the porcelain bushing inner chamber, not with burner hearth in gas directly contact, so nichrome wire can not protected nichrome wire owing to carburizing becomes fragile, make its work-ing life elongated.
(2). nichrome wire is directly pulled out from vitrified pipe after damaging, and does not need the maintenance that stops production, and it is convenient to change nichrome wire.
The utility model will be further described below in conjunction with drawings and Examples:
Accompanying drawing is a structure sectional view of the present utility model, wherein:
［ 1 ］. the nichrome wire terminal stud; ［ 2 ］. porcelain plate; ［ 3 ］. asbestos; ［ 4 ］. shelf; ［ 5 ］ nichrome wire; ［ 6 ］. radiator tube.
Embodiment: referring to accompanying drawing, the utility model comprises the tubulose radiator tube ［ 6 ］ of termination sealing, the nichrome wire ［ 5 ］ that places the radiator tube inner chamber, the porcelain plate ［ 2 ］ of plug on the radiator tube another port, radiator tube ［ 6 ］ is selected silicon carbide ceramics for use, can intercept carburizing to nichrome wire ［ 5 ］, simultaneously also can the even heating burner hearth.Described nichrome wire ［ 5 ］ space disc is wound on the shelf ［ 4 ］.Be filled with the asbestos layer ［ 3 ］ of thermal resistance between porcelain plate ［ 2 ］ in described radiator tube ［ 6 ］ inner chamber and the nichrome wire ［ 5 ］, the heat of nichrome wire ［ 5 ］ all is dispersed in the burner hearth and is not delivered to outside the burner hearth, can improve thermo-efficiency.Nichrome wire terminal stud ［ 1 ］ is connected with power supply.
Claims (3)
1, a kind of heating radiation pipe of carburizing glowing furnace is characterized in that: it comprises the tubulose radiator tube [6] of termination sealing, the nichrome wire [5] that places the radiator tube inner chamber, the porcelain plate [2] of plug on the radiator tube another port.
2, the heating radiation pipe of carburizing glowing furnace according to claim 1 is characterized in that: described nichrome wire ［ 5 ］ places on the shelf ［ 4 ］.
3, the heating radiation pipe of carburizing glowing furnace according to claim 1 is characterized in that: the asbestos layer ［ 3 ］ that is filled with thermal resistance between porcelain plate ［ 2 ］ in described radiator tube ［ 6 ］ inner chamber and the nichrome wire ［ 5 ］.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94242719 CN2203307Y (en) | 1994-10-11 | 1994-10-11 | Heating radiation pipe for cementing and quenching furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94242719 CN2203307Y (en) | 1994-10-11 | 1994-10-11 | Heating radiation pipe for cementing and quenching furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2203307Y true CN2203307Y (en) | 1995-07-12 |
Family
ID=33849255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94242719 Expired - Fee Related CN2203307Y (en) | 1994-10-11 | 1994-10-11 | Heating radiation pipe for cementing and quenching furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2203307Y (en) |
-
1994
- 1994-10-11 CN CN 94242719 patent/CN2203307Y/en not_active Expired - Fee Related
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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 |