CN201234358Y - Welding connection construction for electric heat tube and flange - Google Patents
Welding connection construction for electric heat tube and flange Download PDFInfo
- Publication number
- CN201234358Y CN201234358Y CNU2008201202759U CN200820120275U CN201234358Y CN 201234358 Y CN201234358 Y CN 201234358Y CN U2008201202759 U CNU2008201202759 U CN U2008201202759U CN 200820120275 U CN200820120275 U CN 200820120275U CN 201234358 Y CN201234358 Y CN 201234358Y
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- CN
- China
- Prior art keywords
- flange
- welding
- electrothermal tube
- sheath
- welding connection
- 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 structure for welded joint of an electrothermal tube and a flange. A protective sheath is arranged on the electrothermal tube which is positioned above the flange, one end of the protective sheath is in welded joint with the flange, and the other end thereof is in welded joint with the tube opening of the electrothermal tube (2). The structure has the advantages of (1) effectively preventing the electrothermal tube wall being burnt off due to indirect argon-arc welding on the tube wall, (2) improving the welding strength of the argon-arc welding, and obviating the process of production of a clamping apparatus during braze welding in a furnace,and (3) increasing the contact length during braze welding in the furnace so as to improve the welding quality.
Description
Technical field
The utility model relates to the electrothermal tube field, mainly is a kind of electrothermal tube and flange welding connection structure.
Background technology
When furnace brazing is adopted in the welding of electrothermal tube and flange, the mode that at first needs electrothermal tube and flange are adopted argon arc welding spot welding is fixedly shown in Fig. 1 such as the A, prevent the process generation relative displacement that electrothermal tube and flange weld in stove, product size after causing welding is undesirable, is coated with scolder then in the welding position and enters the position that is coated with soldering paste when welding the B place for furnace brazing in the stove.There is following defective in above structure: 1, be easy to the burn-through tube wall when electrothermal tube and flange argon arc welding spot welding, cause the decreasing insulating of electrothermal tube.2, because spot welding intensity is bad, need make special-purpose anchor clamps when often welding, prevent that flange and electrothermal tube are subjected to displacement when welding.
Summary of the invention
The utility model will solve above-mentioned existing shortcoming, and a kind of electrothermal tube and flange welding connection structure are provided.
The utility model solves the technical scheme that its technical problem adopts: this electrothermal tube and flange welding connection structure, mainly comprise flange and electrothermal tube, at flange sheath of electrothermal tube position increase with top, one end and the flange of sheath are welded to connect, and the mouth of pipe of the other end of sheath and electrothermal tube 2 is welded to connect.
Described sheath one end is pressed on flange upper surface and welding with it, and described sheath is a cylindrical shape.
The effect that the utility model is useful is: 1, owing to directly do not carry out argon arc welding at the tube wall position, can effectively prevent the risk of electrothermal tube tube wall burn-through.2, increase the weld strength of argon arc welding, when furnace brazing, can remove the process of making anchor clamps from.Contact length when 3, welding in the increase stove improves welding quality.
Description of drawings
Fig. 1 is the prior art constructions schematic diagram;
Fig. 2 is the utility model master TV structure schematic diagram;
Description of reference numerals: flange 1, electrothermal tube 2, sheath 3.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As shown in Figure 2, this electrothermal tube and flange welding connection structure, mainly comprise flange 1 and electrothermal tube 2, at flange 1 columnar sheath 3 of electrothermal tube 2 positions increase with top, one end of sheath 3 is pressed on flange 1 upper surface and argon arc welding connection with it, and the mouth of pipe argon arc welding of the other end of sheath 4 and electrothermal tube 2 is connected.
In Fig. 2, the B place is coated with the position of soldering paste during for furnace brazing, and the sheath and the mouth of pipe are fixed in the arc-welding of C place, and sheath and flange are fixed in the arc-welding of D place.Owing to directly do not carry out argon arc welding at the tube wall position, can effectively prevent the risk of electrothermal tube tube wall burn-through.Increase the weld strength of argon arc welding, when furnace brazing, can remove the process of making anchor clamps from.Increase the contact length when welding in the stove, improve welding quality.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (3)
1, a kind of electrothermal tube and flange welding connection structure, mainly comprise flange (1) and electrothermal tube (2), it is characterized in that: at electrothermal tube (2) the position increase sheath (3) of flange (1) with top, one end of sheath (3) and flange (1) are welded to connect, and the mouth of pipe of the other end of sheath (4) and electrothermal tube (2) is welded to connect.
2, electrothermal tube according to claim 1 and flange welding connection structure is characterized in that: described sheath (3) one ends are pressed on flange (1) upper surface and welding with it.
3, electrothermal tube according to claim 1 and 2 and flange welding connection structure is characterized in that: described sheath (3) is a cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201202759U CN201234358Y (en) | 2008-06-24 | 2008-06-24 | Welding connection construction for electric heat tube and flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201202759U CN201234358Y (en) | 2008-06-24 | 2008-06-24 | Welding connection construction for electric heat tube and flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201234358Y true CN201234358Y (en) | 2009-05-06 |
Family
ID=40620745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201202759U Expired - Fee Related CN201234358Y (en) | 2008-06-24 | 2008-06-24 | Welding connection construction for electric heat tube and flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201234358Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433631A (en) * | 2013-09-09 | 2013-12-11 | 芜湖苏立实业有限公司 | Nickel-base brazing process of heating tube |
| CN106151694A (en) * | 2016-08-18 | 2016-11-23 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN106304438A (en) * | 2016-08-31 | 2017-01-04 | 安徽苏立电热科技股份有限公司 | A kind of electrothermal tube reinforcement structure and manufacturing process thereof |
-
2008
- 2008-06-24 CN CNU2008201202759U patent/CN201234358Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433631A (en) * | 2013-09-09 | 2013-12-11 | 芜湖苏立实业有限公司 | Nickel-base brazing process of heating tube |
| CN106151694A (en) * | 2016-08-18 | 2016-11-23 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN106151694B (en) * | 2016-08-18 | 2019-02-01 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN106304438A (en) * | 2016-08-31 | 2017-01-04 | 安徽苏立电热科技股份有限公司 | A kind of electrothermal tube reinforcement structure and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangshan Rewei Metal Manufacturing Co., Ltd. Assignor: Hangzhou Heatwell Mechanical & Electrical Co., Ltd. Contract fulfillment period: 2009.7.21 to 2014.7.30 Contract record no.: 2009330002034 Denomination of utility model: Welding connection construction for electric heat tube and flange Granted publication date: 20090506 License type: Exclusive license Record date: 20090819 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.21 TO 2014.7.30; CHANGE OF CONTRACT Name of requester: JIANGSHAN REWEI METAL MANUFACTURING CO., LTD. Effective date: 20090819 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangshan Rewei Metal Manufacturing Co., Ltd. Assignor: Hangzhou Heatwell Mechanical & Electrical Co., Ltd. Contract record no.: 2009330002034 Date of cancellation: 20110714 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20130624 |