CN102021931B - Weldless special pipe hoop for well pipe and manufacturing method thereof - Google Patents
Weldless special pipe hoop for well pipe and manufacturing method thereof Download PDFInfo
- Publication number
- CN102021931B CN102021931B CN 201010605150 CN201010605150A CN102021931B CN 102021931 B CN102021931 B CN 102021931B CN 201010605150 CN201010605150 CN 201010605150 CN 201010605150 A CN201010605150 A CN 201010605150A CN 102021931 B CN102021931 B CN 102021931B
- Authority
- CN
- China
- Prior art keywords
- pipe
- hoop
- manufacturing
- well
- weldless
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract 6
- 239000010959 steel Substances 0.000 abstract 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Images
Landscapes
- Reinforcement Elements For Buildings (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a weldless special pipe hoop for a well pipe and a manufacturing method thereof. The pipe hoop is an annular steel hoop; a boss is arranged on the inner side of the steel hoop; with the boss as the boundary, one side of the steel hoop is an end in connection with other well pipe, and the other side of the steel hoop is an end for connecting the steel hoop with the well pipe to form the well pipe; a bevel edge is formed on the outer side of the top of the connection end; and a groove is formed on the outer side of the steel hoop opposite to the boss. In the manufacturing method of the pipe hoop, the pipe hoop blank is rolled and formed at a time by a rolling method. Without the processes such as cutting, coil stewing, reshaping and welding, the pipe hoop manufacturing method is simple to operate, and has the advantages of one-time rolling and forming, high mechanical degree, large production lot size, good product quality and time and labor saving while ensuring no welding quality problem of the product as welding joint does not exist.
Description
Technical field
The present invention relates to the prestressed reinforced concrete well casing and make a kind of weldless abnormal pipe hoop for well pipe in field and preparation method thereof.
Background technology
The rolling thickness of the many employings of existing well pipe hoop is 8mm one-level flat hot rolled bar bar, through cutting off, simmer circle, shaping, being welded into an annulus.The method complicated operation, production lot is little, and product is coarse, wastes time and energy, and problems of welded quality appears in product easily, causes into well generation mass defect.
Summary of the invention
The present invention is exactly in order to overcome the deficiency of above-mentioned technology, seamless special shaped pipe hoop of a kind of direct forming and preparation method thereof to be provided.
Weldless abnormal pipe hoop for well pipe of the present invention is the ring-type stirrup; In the stirrup inboard one boss is arranged; Take boss as the boundary, one side stirrup is and the link of other well casing that the another side of stirrup is that stirrup connects the well casing end to consist of well casing; The top outer of described link is with groove; With the stirrup outside of boss opposite position one groove is arranged.
The present invention makes weldless abnormal pipe hoop for well pipe, with milling method with roll forming of pipe collar blank.
The present invention makes the method for pipe collar, without cutting off, simmer the operations such as circle, shaping, welding, roll forming, simple to operate, mechanization degree is high, production lot is large, good product quality, time saving and energy saving, owing to there is not weld seam, there is not problems of welded quality in product.
Description of drawings:
Fig. 1 is the outline drawing of weldless abnormal pipe hoop for well pipe of the present invention;
Fig. 2 is the A-A cross section view of Fig. 1;
Fig. 3 is the B enlarged drawing among Fig. 2.
Among the figure:
1 boss, 2 links, 2.1 grooves, 3 stirrups connect the well casing end, 4 grooves.
The specific embodiment
With reference to Fig. 1-a kind of weldless abnormal pipe hoop for well pipe of Fig. 3 the present invention, be the ring-type stirrup.One boss 1 is arranged in the stirrup inboard; Take boss 1 as the boundary, one side stirrup is link 2, be used for another well casing is linked together; The outside at link 2 tops is with a groove 2.1; The another side of stirrup is that stirrup connects well casing end 3; In the stirrup outside, with boss 1 opposite position one groove 4 is arranged, when being used for well casing processed, groove 4 is combined with mould, play the stretch-draw effect.
The present invention makes weldless abnormal pipe hoop for well pipe, uses the milling method one-shot forming.For realizing the technical scheme of above-mentioned no-welding-seam pipe collar, its method is that the pipe collar blank that will heat is enclosed within on the core, rotates main mould with driven by motor, rotates on one side rotate main mould, Yi Bian exert pressure to the pipe collar blank on the core, core and pipe collar blank also rotate simultaneously.The pipe collar blank is realized attenuate and the enlarged-diameter of pipe collar sotck thinkness under the pressure that rotates main mould and mandrel, one-shot forming is rolled into the no-welding-seam pipe collar.
Claims (1)
1. the preparation method of a weldless abnormal pipe hoop for well pipe is with roll forming of pipe collar blank with milling method; It is characterized in that: the pipe collar blank of heating is enclosed within on the core, rotates main mould with driven by motor, rotate on one side rotate main mould, Yi Bian exert pressure to the pipe collar blank on the core, core and pipe collar blank also rotate simultaneously; The pipe collar blank is realized attenuate and the enlarged-diameter of pipe collar sotck thinkness under the pressure that rotates main mould and core, one-shot forming is rolled into the no-welding-seam pipe collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010605150 CN102021931B (en) | 2010-12-27 | 2010-12-27 | Weldless special pipe hoop for well pipe and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010605150 CN102021931B (en) | 2010-12-27 | 2010-12-27 | Weldless special pipe hoop for well pipe and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102021931A CN102021931A (en) | 2011-04-20 |
| CN102021931B true CN102021931B (en) | 2013-01-02 |
Family
ID=43863671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010605150 Expired - Fee Related CN102021931B (en) | 2010-12-27 | 2010-12-27 | Weldless special pipe hoop for well pipe and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102021931B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506703Y (en) * | 2001-10-09 | 2002-08-21 | 张春奇 | Steel hoop for well pipe |
| CN2771310Y (en) * | 2005-03-25 | 2006-04-12 | 张春奇 | Steel ferrule for borepipe of prestressed reinforced concrete |
| CN2771309Y (en) * | 2005-03-25 | 2006-04-12 | 张春奇 | Special-shaped belt steel for borepipe ferrule of prestressed reinforced concrete |
| CN201933540U (en) * | 2010-12-27 | 2011-08-17 | 张春奇 | Weldless abnormal pipe hoop for well pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4187226B1 (en) * | 2008-04-21 | 2008-11-26 | 孝洋 小林 | Groundwater sampling device |
-
2010
- 2010-12-27 CN CN 201010605150 patent/CN102021931B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506703Y (en) * | 2001-10-09 | 2002-08-21 | 张春奇 | Steel hoop for well pipe |
| CN2771310Y (en) * | 2005-03-25 | 2006-04-12 | 张春奇 | Steel ferrule for borepipe of prestressed reinforced concrete |
| CN2771309Y (en) * | 2005-03-25 | 2006-04-12 | 张春奇 | Special-shaped belt steel for borepipe ferrule of prestressed reinforced concrete |
| CN201933540U (en) * | 2010-12-27 | 2011-08-17 | 张春奇 | Weldless abnormal pipe hoop for well pipe |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2009-257047A 2009.11.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102021931A (en) | 2011-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104000357B (en) | Bracelet manufacturing process | |
| CN100402226C (en) | Process of making annulus with bar steel | |
| CN102554573B (en) | Manufacturing method for tubeless multi-piece wheel used for off-road automobile | |
| CN103084427B (en) | Manufacturing method of hardenability steel tube | |
| CN101422860A (en) | Welded flange hot-rolling technique | |
| CN102489945B (en) | Manufacture method of anti-deformation water beam in sintering system | |
| CN101574778B (en) | Process of integrally shaping U-shaped bifurcated pipe | |
| CN104525660A (en) | Device and method for hot forming of titanium alloy corrugated pipe through current assistance | |
| CN103286527A (en) | Production process for extra-large aperture super wall thickness square steel pipe | |
| CN103128509B (en) | A kind of integral automobile steel ring production technology | |
| US7905387B2 (en) | Method of manufacturing expansion joint | |
| CN102021931B (en) | Weldless special pipe hoop for well pipe and manufacturing method thereof | |
| CN201933540U (en) | Weldless abnormal pipe hoop for well pipe | |
| CN114309127B (en) | Inner wall surfacing small bending radius bent pipe and forming method thereof | |
| CN102560135A (en) | Integral copper crucible and method for producing copper crucible by integral forging and rotary pressing | |
| WO2009069920A2 (en) | Manufacturing method of eccentric cone with knuckle | |
| CN105983816A (en) | Integral forming method for reel throwing line | |
| CN100361830C (en) | Automobile integral drive axle housing and manufacturing method thereof | |
| KR101335651B1 (en) | Method for making the large size welding neck flange | |
| CN101596572A (en) | The manufacturing technique method of axle housing stiffening ring | |
| CN103231224B (en) | The method of straight tube tube blank inner wall built-up welding aftershaping 90 ° of bend pipes | |
| CN102848571A (en) | Device and method for sweating soldering plastic thin-walled tube cone mouth | |
| CN103464971A (en) | Cold pressing method of wheel spokes | |
| CN2937739Y (en) | Non-welding joint metal hose | |
| KR101251326B1 (en) | Integral method for forming the pipe flange |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171023 Address after: North Branch Township of Qingyuan District of Hebei city of Baoding Province LI BA Zhuang 071100 Patentee after: Qingyuan Qingquan Cement Product Co., Ltd. Address before: North Branch Township 071100 Hebei County of Qingyuan province Hebei Qingyuan Industrial Company Patentee before: Zhang Chunqi |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20191227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |