CN101579715A - Improved hyper pipeline pipe-branch forming process - Google Patents
Improved hyper pipeline pipe-branch forming process Download PDFInfo
- Publication number
- CN101579715A CN101579715A CNA2009103039271A CN200910303927A CN101579715A CN 101579715 A CN101579715 A CN 101579715A CN A2009103039271 A CNA2009103039271 A CN A2009103039271A CN 200910303927 A CN200910303927 A CN 200910303927A CN 101579715 A CN101579715 A CN 101579715A
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- China
- Prior art keywords
- pipe
- branch
- arm
- relative position
- hyper
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Abstract
The invention discloses an improved hyper pipeline pipe-branch forming process which realizes better anti-fatigue and shearing capability at a joint between a hyper pipeline and a pipe branch and achieves good pipe branch service performance. The improved hyper pipeline pipe-branch forming process is characterized in that after a steel pipe with certain caliber is selected, a relative position of the branch pipe is determined by line drawing and positioning; the scope of the relative position of the branch pipe is heated by means of intermediate frequency heating; after the outer wall of the steel pipe is heated to temperature of 1150-1200 DEG C, a device used for the intermediate frequency heating is removed, and an outer cavity mould of the branch pipe closely clings to and is fixed with the outer end surface of a position at which the branch pipe is to be arranged; after an internal mould supporting head assorted with the outer cavity mould of the branch pipe is positioned at the relative position of the branch pipe in an inside hollow cavity of the steel pipe, the internal mould supporting head supports the steel pipe wall of the relative position of the branch pipe; and the pipe branch is produced in terms of a pier production by utilizing the positioning of the outer cavity mould of the branch pipe and the supporting and pressing of the internal mould supporting head.
Description
Technical field
The present invention relates to the technology field of super pipeline, be specially a kind of hyper pipeline pipe-branch forming process of improvement.
Background technology
The forming technology of existing hyper pipeline pipe-branch, it is by after the relative position perforate of the arm of super pipeline, and arm in the welding and making is because its arm and super pipeline employing are welded to connect, its weld antifatigue, shear ability are poor, cause the serviceability of its arm poor.
Technology contents
At existing issue, the invention provides a kind of hyper pipeline pipe-branch forming process of improvement, the interface of its super pipeline, arm has antifatigue, shear ability preferably, and its arm serviceability is good.
Its technical scheme is such:
A kind of hyper pipeline pipe-branch forming process of improvement, it is characterized in that: after it selects the certain steel pipe of bore for use, the relative position of arm is determined in the line location, by heating in the scope zone of heating in medium frequency to described arm relative position, after outer wall of steel pipe is heated to 1150 ℃～1200 ℃, to be used for the device that described heating in medium frequency uses removes, be adjacent to the outer cavity mould of arm and the outer face of managing the position of waiting to pay wages fixing, after the internal mold that will match with the outer cavity mould of arm comes directly towards the described arm relative position that is placed in the described steel duct cavity, top, described internal mold top is to the steel pipe walls of the relative position of described arm, it utilizes the roof pressure of the location and the described internal mold top of the outer cavity mould of described arm, and the pipe pier system of will propping up forms.
It is further characterized in that: the device that described heating in medium frequency is used is specially and adopts diameter 20 * 2mm copper tube, and it is according to the heating region size, heats with the shape energising of turning of 3～6mm spacing;
Roof pressure is carried out by the moulding press driving of taking blame for others in described internal mold top.
After adopting technology of the present invention, the arm that pier system forms and the interface of super pipeline have antifatigue, shear ability preferably, and its arm serviceability is good.
The specific embodiment
Adopt the steel pipe of diameter 813 * 50mm, arm is diameter 243 * 26mm, the relative position of arm is determined in the line location, choose diameter 20 * 2mm copper tube then, become 8 circles with 5mm spacing dish, carry out heating in medium frequency (for existing mature technology) in the scope zone of energising to the arm relative position, after outer wall of steel pipe is heated to 1200 ℃, copper tube and energising equipment thereof are removed, be adjacent to the outer cavity mould of arm and the outer face of managing the position of waiting to pay wages fixing, the internal mold top that will match with the outer cavity mould of arm is placed into the arm relative position in the steel duct cavity, the top of internal mold top partly is the semielliptical shape, its diameter is 190mm, internal mold top is by moulding press drivings of taking blame for others, and carries out roof pressure to the steel pipe walls of the relative position of arm, because the outer cavity mould of arm is adjacent to fixing with the outer face of managing the position of waiting to pay wages, it utilizes the roof pressure of the location and the internal mold top of the outer cavity mould of arm, and the pipe pier system of will propping up forms.
Claims (3)
1, a kind of hyper pipeline pipe-branch forming process of improvement, it is characterized in that: after it selects the certain steel pipe of bore for use, the relative position of arm is determined in the line location, by heating in the scope zone of heating in medium frequency to described arm relative position, after outer wall of steel pipe is heated to 1150 ℃～1200 ℃, to be used for the device that described heating in medium frequency uses removes, be adjacent to the outer cavity mould of arm and the outer face of managing the position of waiting to pay wages fixing, after the internal mold that will match with the outer cavity mould of arm comes directly towards the described arm relative position that is placed in the described steel duct cavity, top, described internal mold top is to the steel pipe walls of the relative position of described arm, it utilizes the roof pressure of the location and the described internal mold top of the outer cavity mould of described arm, and the pipe pier system of will propping up forms.
2, according to the hyper pipeline pipe-branch forming process of the described a kind of improvement of claim 1, it is characterized in that: the device that described heating in medium frequency is used is specially and adopts diameter 20 * 2mm copper tube, it is according to the heating region size, heats with the shape energising of turning of 3～6mm spacing.
3, according to the hyper pipeline pipe-branch forming process of the described a kind of improvement of claim 1, it is characterized in that: roof pressure is carried out by the moulding press driving of taking blame for others in described internal mold top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103039271A CN101579715A (en) | 2009-07-02 | 2009-07-02 | Improved hyper pipeline pipe-branch forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103039271A CN101579715A (en) | 2009-07-02 | 2009-07-02 | Improved hyper pipeline pipe-branch forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101579715A true CN101579715A (en) | 2009-11-18 |
Family
ID=41362105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009103039271A Pending CN101579715A (en) | 2009-07-02 | 2009-07-02 | Improved hyper pipeline pipe-branch forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101579715A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161071A (en) * | 2011-01-19 | 2011-08-24 | 北京国电富通科技发展有限责任公司 | Plug used for shaping of branch pipe of super pipeline and process for shaping branch pipe of pipeline by using the same |
| CN102211269A (en) * | 2010-12-30 | 2011-10-12 | 武汉重工铸锻有限责任公司 | Method for controlling phase position of nuclear power main steam super pipeline nozzle |
| CN101767172B (en) * | 2009-12-31 | 2011-11-02 | 武汉重工铸锻有限责任公司 | Hot extrusion molding method for pipe nozzle of main steam super pipeline |
| CN102794329A (en) * | 2012-08-31 | 2012-11-28 | 渤海重工管道有限公司 | Manufacturing equipment for nozzle of main steam super pipeline of nuclear power and pulling and extrusion manufacturing process for nozzle |
-
2009
- 2009-07-02 CN CNA2009103039271A patent/CN101579715A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767172B (en) * | 2009-12-31 | 2011-11-02 | 武汉重工铸锻有限责任公司 | Hot extrusion molding method for pipe nozzle of main steam super pipeline |
| CN102211269A (en) * | 2010-12-30 | 2011-10-12 | 武汉重工铸锻有限责任公司 | Method for controlling phase position of nuclear power main steam super pipeline nozzle |
| CN102161071A (en) * | 2011-01-19 | 2011-08-24 | 北京国电富通科技发展有限责任公司 | Plug used for shaping of branch pipe of super pipeline and process for shaping branch pipe of pipeline by using the same |
| CN102794329A (en) * | 2012-08-31 | 2012-11-28 | 渤海重工管道有限公司 | Manufacturing equipment for nozzle of main steam super pipeline of nuclear power and pulling and extrusion manufacturing process for nozzle |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20091118 |