CN115090718A - Shape correction method before butt welding of pipe orifices of two large-caliber thin-wall steel pipes - Google Patents
Shape correction method before butt welding of pipe orifices of two large-caliber thin-wall steel pipes Download PDFInfo
- Publication number
- CN115090718A CN115090718A CN202211033325.0A CN202211033325A CN115090718A CN 115090718 A CN115090718 A CN 115090718A CN 202211033325 A CN202211033325 A CN 202211033325A CN 115090718 A CN115090718 A CN 115090718A
- Authority
- CN
- China
- Prior art keywords
- pipe
- butt welding
- screw
- arc
- steel pipe
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/14—Recontouring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a shape correcting method before butt welding of pipe orifices of two large-diameter thin-wall steel pipes, which solves the problem of how to quickly correct the shape of the two pipe orifices before welding to meet the welding requirement, and belongs to the field of steel pipe welding; a three-legged screw central support is arranged in two pipelines at a butt welding position, the outer side end of a front screw (9) is connected with a front roller (11), the outer side end of a rear screw (10) is connected with a rear roller (12), a U-shaped bracket (13) is welded at the top end of an upper screw (8), a screw jack is arranged on the U-shaped bracket (13), the top end of the screw jack is abutted with an arc-shaped plate, and the sunken jack of the pipeline opening is supported into an arc shape through the abutting joint of the screw jack on the arc-shaped plate, so that the two pipeline openings are abutted together; the tool is convenient to erect and install on site, the shape correction method is simple to operate, and the correction of the obvious collapse of the two pairs of welded pipe mouths can be quickly realized.
Description
Technical Field
The invention relates to the field of steel pipe welding, in particular to a shape correction method for two large-caliber thin-wall steel pipes before butt welding of two pipe orifices.
Background
In the butt welding construction process of large-diameter steel pipes of air-cooled exhaust pipelines, steam turbine rooms and boiler rooms, as the external dimensions of the pipelines are too large and the wall thickness of the pipelines is thinner, collision is inevitable in the pipeline transportation process, so that the pipe orifices are sunken, the two pipe orifices in butt welding cannot be aligned and have the phenomenon of edge misalignment, the two pipe orifices in butt welding cannot be accurately positioned and butted together, the butt welding quality is poor, the appearance of welding seams is poor, and the design and standard requirements of steel pipe butt connection cannot be met; the method is to shape the pipe orifices of the two steel pipes before butt welding of the pipe orifices of the two steel pipes, so that the pipe orifices of the two steel pipes can meet the requirement of butt welding, and the technical problem to be solved on site is solved.
Disclosure of Invention
The invention provides a shape correction method before butt welding of pipe orifices of two large-caliber thin-wall steel pipes, which solves the technical problem of how to quickly correct the shape of the two pipe orifices before welding so as to meet the welding requirements.
The invention solves the technical problems by the following technical scheme:
general concept of the invention: a three-leg central support is arranged in two pipelines at a butt welding position, walking wheels are installed at the outer ends of the two legs, a screw jack is arranged at the outer end of the third leg, an arc-shaped plate is abutted and connected to the top end of the screw jack, and the pipeline port is sunken and supported into an arc shape through the abutting connection of the screw jack to the arc-shaped plate, so that the two pipeline ports are abutted together.
A shape correcting tool before butt welding of pipe orifices of two large-diameter thin-wall steel pipes comprises a left steel pipe and a right steel pipe which are in butt joint in place, a butt welding reserved annular gap is arranged between the left steel pipe and the right steel pipe, a central shaft is arranged in the center of the butt welding reserved annular gap and horizontally arranged along the central axis direction of the two butt welding steel pipes, and an upper side nut, a front side nut and a rear side nut are welded on the outer side wall of the central shaft at equal intervals in an arc manner; an upper screw is screwed in the upper nut, a front screw is screwed in the front nut, a rear screw is screwed in the rear nut, and the upper screw, the front screw and the rear screw are arranged in a circular surface of a circle where the butt welding reserved annular gap is located; the top of upside screw rod is provided with the U-shaped bracket, be provided with screw jack in the U-shaped bracket, be connected with inboard school shape arc on screw jack's output, inboard school shape arc top joint is on the steel pipe inside wall of butt welding reservation annular gap both sides, the end is connected with the front side gyro wheel in the outside of front side screw rod, the end is connected with the rear side gyro wheel in the outside of rear side screw rod, front side gyro wheel and rear side gyro wheel top joint respectively are on the steel pipe inside wall of butt welding reservation annular gap both sides.
The outer side of the inner side correction arc plate is provided with an inner thread counter bore, the outer side correction arc plate is movably arranged on the outer side of the butt welding reserved annular gap, a threaded through hole is formed in the outer side correction arc plate, and a connecting bolt sequentially penetrates through the threaded through hole and the butt welding reserved annular gap from the outside to the inside and then is screwed with the inner thread counter bore.
A temporary platform is built in the right steel pipe, a stepping motor is arranged on the temporary platform, and an output shaft of the stepping motor is connected with the central shaft through a coupler.
A shape correcting method before butt welding of pipe orifices of two large-diameter thin-wall steel pipes comprises a left steel pipe and a right steel pipe which are in butt joint, wherein a butt welding reserved annular gap is arranged between the left steel pipe and the right steel pipe; the method is characterized by comprising the following steps:
firstly, taking a section of central shaft, welding and connecting an upper nut, a front nut and a rear nut on the outer circular surface of the central shaft at intervals of 120 degrees, and enabling the central axes of the three nuts to be arranged on the same circular surface vertical to the central shaft; taking three screws, connecting the outer side end of the front screw with a front roller, connecting the outer side end of the rear screw with a rear roller, and welding a U-shaped bracket at the top end of the upper screw; screwing the inner side end of the front screw rod on a front nut, screwing the inner side end of the rear screw rod on a rear nut, screwing the inner side end of the upper screw rod on the upper nut, and adjusting the distance from the outer side end of the front roller to the central line of the central shaft and the distance from the outer side end of the rear roller to the central line of the central shaft to be equal to the radius of the opening of the butt-welded steel pipe by adjusting the screwing length of the screw rod and the nut;
taking a screw jack, and fixedly connecting the top end of an output shaft of the screw jack with an inner side correction arc-shaped plate;
thirdly, placing the shape correcting tool assembled in the first step into two pairs of welded steel pipes which are butted in place, and respectively abutting a front side roller and a rear side roller on the inner side walls of the steel pipes on two sides of the butt-welded reserved annular gap;
fourthly, the U-shaped bracket is arranged at the position where the pipe orifice has obvious concave positions through rotating the shape correcting tool in the pipe, the screw jack assembled with the inner side shape correcting arc plate in the second step is placed in the U-shaped bracket, the inner side shape correcting arc plate is abutted on the inner side wall of the steel pipe at two sides of the butt welding reserved annular gap by controlling the screw jack until the concave positions are recovered, and then the screw jack is controlled, so that an output shaft of the screw jack drives the inner side shape correcting arc plate to fall off the inner side wall of the pipe orifice of the steel pipe;
and fifthly, setting the U-shaped bracket to the position of the next pipe orifice with obvious concave through rotating the shape correction tool in the pipe, and repeating the fourth step.
The outer side of the inner correction arc plate is provided with an inner thread counter bore, the outer side of the butt welding reserved annular gap is movably provided with an outer correction arc plate, the outer correction arc plate is provided with a threaded through hole, and a connecting bolt sequentially penetrates through the threaded through hole and the butt welding reserved annular gap from outside to inside and then is screwed with the inner thread counter bore; after the obvious depressions on the two pairs of pipe connecting ports are corrected, the central shaft is rotated through the wrench to drive the inner side correction arc-shaped plate and the outer side correction arc-shaped plate to rotate, so that two U-shaped ports formed by the inner side correction arc-shaped plate and the outer side correction arc-shaped plate realize the roundness correction on the butt welding pipe port of the left steel pipe and the butt welding pipe port of the right steel pipe.
A temporary platform is built in the right steel pipe, a stepping motor is arranged on the temporary platform, and an output shaft of the stepping motor is connected with the central shaft through a coupler; the inner side correction arc plate and the outer side correction arc plate are rotated in a stepping mode through the stepping motor, so that the circle of the butt welding pipe opening of the left steel pipe and the circle of the butt welding pipe opening of the right steel pipe are corrected.
The tool is convenient to erect and install on site, the shape correcting method is simple to operate, the correction of obvious collapse of the two pairs of welded pipe mouths can be quickly realized, the subsequent rounding operation can be performed, and the welding quality of the large-caliber two-butted steel pipes is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A in FIG. 1;
FIG. 3 is a schematic view of the present invention in its configuration during rounding;
fig. 4 is a sectional view taken along line B-B in fig. 3.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a shape correcting tool before butt welding of pipe orifices of two large-diameter thin-wall steel pipes comprises a left steel pipe 1 and a right steel pipe 2 which are in butt joint in place, a butt welding reserved annular gap 3 is arranged between the left steel pipe 1 and the right steel pipe 2, a central shaft 4 is arranged in the center of the butt welding reserved annular gap 3, the central shaft 4 is horizontally arranged along the central axis direction of the two butt welding steel pipes, and an upper nut 5, a front nut 6 and a rear nut 7 are welded on the outer side wall of the central shaft 4 at equal intervals in an arc manner; an upper screw 8 is screwed in the upper nut 5, a front screw 9 is screwed in the front nut 6, a rear screw 10 is screwed in the rear nut 7, and the upper screw 8, the front screw 9 and the rear screw 10 are arranged in a circular surface of a circle where the butt welding reserved annular gap 3 is located; a U-shaped bracket 13 is arranged at the top end of the upper side screw 8, a screw jack 14 is arranged in the U-shaped bracket 13, an inner side shape correcting arc plate 15 is connected to the output end of the screw jack 14, the inner side shape correcting arc plate 15 abuts against the inner side walls of the steel pipes on two sides of the butt welding reserved annular gap 3, a front side roller 11 is connected to the outer side end of the front side screw 9, a rear side roller 12 is connected to the outer side end of the rear side screw 10, and the front side roller 11 and the rear side roller 12 abut against the inner side walls of the steel pipes on two sides of the butt welding reserved annular gap 3 respectively; the width of the flange of the front side roller 11 and the width of the flange of the rear side roller 12 are both larger than the width of the butt welding reserved annular gap 3, so that the two rollers can ride on the inner side walls of the two pipe orifices on the inner side of the butt welding reserved annular gap 3 to walk; the radian of the inner side correction arc-shaped plate 15 is the same as that of the two butt-jointed pipes; when the pipe orifice recess is corrected, the front side screw rod 9 and the front side roller 11 are used as one supporting leg, the rear side screw rod 10 and the rear side roller 12 are used as the other supporting leg, the supporting effect on the screw jack 14 is achieved, after the output shaft of the screw jack 14 extends out, the pipe orifice recess is pushed outwards through the inner side arc-shaped plate 15, and shaping correction is achieved.
An inner thread counter bore 18 is arranged on the outer side surface of the inner correction arc plate 15, an outer correction arc plate 16 is movably arranged on the outer side of the butt welding reserved annular gap 3, a thread through hole 22 is arranged on the outer correction arc plate 16, and a connecting bolt 17 is screwed with the inner thread counter bore 18 after sequentially passing through the thread through hole 22 and the butt welding reserved annular gap 3 along the outside-in direction; an operator enters the pipe orifices, and can operate the central shaft 4 to rotate in situ through a manual wrench, so that the two pipe orifices can be calibrated.
A temporary platform 19 is built in the right steel pipe 2, a stepping motor 20 is arranged on the temporary platform 19, and an output shaft 21 of the stepping motor 20 is connected with the central shaft 4 through a coupler; the temporary platform 19 can be temporarily set up and ensure that the central axis of the output shaft 21 of the stepping motor 20 thereon is aligned with the central axis of the central shaft 4, and temporarily connect the central shaft 4 and the output shaft 21 together through a coupling.
A shape correcting method before butt welding of pipe orifices of two large-diameter thin-wall steel pipes comprises a left steel pipe 1 and a right steel pipe 2 which are butted in place, wherein a butt welding reserved annular gap 3 is arranged between the left steel pipe 1 and the right steel pipe 2; the method is characterized by comprising the following steps:
firstly, taking a section of central shaft 4, welding and connecting an upper nut 5, a front nut 6 and a rear nut 7 on the outer circular surface of the central shaft 4 at intervals of 120 degrees, and enabling the central axes of the three nuts to be arranged on the same circular surface vertical to the central shaft 4; taking three screws, connecting a front side roller 11 at the outer side end of a front side screw 9, connecting a rear side roller 12 at the outer side end of a rear side screw 10, and welding a U-shaped bracket 13 at the top end of an upper side screw 8; screwing the inner side end of a front side screw rod 9 on a front side nut 6, screwing the inner side end of a rear side screw rod 10 on a rear side nut 7, screwing the inner side end of an upper side screw rod 8 on an upper side nut 5, and adjusting the distance from the outer side end of a front side roller 11 to the central line of a central shaft 4 and the distance from the outer side end of a rear side roller 12 to the central line of the central shaft 4 to be equal to the radius of a butt-welded steel pipe orifice by adjusting the screwing length of the screw rods and the nuts;
secondly, taking a screw jack 14, and fixedly connecting the top end of an output shaft of the screw jack 14 with an inner side correction arc-shaped plate 15;
thirdly, placing the shape correcting tool assembled in the first step into two pairs of welded steel pipes which are butted in place, and enabling the front side roller 11 and the rear side roller 12 to be respectively abutted against the inner side walls of the steel pipes on two sides of the butt-welding reserved annular gap 3;
fourthly, the U-shaped bracket 13 is arranged at the position where the pipe orifice has obvious concave positions through rotating the shape correcting tool in the pipe, the screw jack 14 assembled with the inner side shape correcting arc-shaped plate 15 in the second step is placed in the U-shaped bracket 13, the inner side shape correcting arc-shaped plate 15 is abutted and welded on the inner side wall of the steel pipe at two sides of the butt welding reserved annular gap 3 by controlling the screw jack 14 until the concave positions are recovered, and then the screw jack 14 is controlled, so that the output shaft of the screw jack drives the inner side shape correcting arc-shaped plate 15 to fall off the inner side wall of the pipe orifice of the steel pipe;
fifthly, the U-shaped bracket 13 is arranged at the position where the next pipe orifice has obvious concave through rotating the shape correcting tool in the pipe, and the fourth step is repeated.
An inner thread counter bore 18 is arranged on the outer side surface of the inner correction arc plate 15, an outer correction arc plate 16 is movably arranged on the outer side of the butt welding reserved annular gap 3, a thread through hole 22 is arranged on the outer correction arc plate 16, and a connecting bolt 17 is screwed with the inner thread counter bore 18 after sequentially passing through the thread through hole 22 and the butt welding reserved annular gap 3 along the outside-in direction; after the obvious depressions on the two joint pipe openings are corrected, the central shaft 4 is rotated through a wrench to drive the inner side correction arc-shaped plate 15 and the outer side correction arc-shaped plate 16 to rotate, so that the two U-shaped openings formed by the inner side correction arc-shaped plate 15 and the outer side correction arc-shaped plate 16 realize the circle correction on the butt welding pipe opening of the left steel pipe 1 and the butt welding pipe opening of the right steel pipe 2; the circle calibration can rotate the central shaft 4 in the positive direction or rotate the central shaft 4 in the negative direction to realize the circle calibration of the pipe orifice; after the pipe mouth is rounded, the connecting bolt 17 can be firstly removed to separate the outer side correction arc plate 16 from the inner side correction arc plate 15, and then the screw jack 14 is lowered, and the whole correction tool is taken out from the two pipes which are butt-welded.
A temporary platform 19 is built in the right steel pipe 2, a stepping motor 20 is arranged on the temporary platform 19, and an output shaft 21 of the stepping motor 20 is connected with the central shaft 4 through a coupler; the inner side correction arc-shaped plate 15 and the outer side correction arc-shaped plate 16 are rotated step by the step motor 20, so that the roundness correction of the butt welding pipe opening of the left steel pipe 1 and the butt welding pipe opening of the right steel pipe 2 is realized.
The shape correction of the two welded pipe orifices on site is carried out step by step: firstly, visually observing the position of an obvious dent on a welded pipe orifice, aligning a U-shaped bracket 13 on a shape correction tool to the dent, butting an inner side shape correction arc-shaped plate 15 on the inner side wall of the pipe orifice with the obvious dent by controlling a screw jack 14, and jacking the dent by jacking the screw jack 14 to restore the dent to the original position; then, the screw jack 14 is lowered, and the next recess is restored by rotating the central shaft 4 in the same manner; after the pits at the butt joint pipe opening are basically restored, the outer shaping arc plate 16 is movably placed on the outer side of the inner shaping arc plate 15, the connecting bolt 17 penetrates through the butt welding reserved annular gap 3 between the inner shaping arc plate 15 and the outer shaping arc plate 16, the inner shaping arc plate 15 and the outer shaping arc plate 16 are connected together in a penetrating mode to form two U-shaped shaping clamps, the central shaft 4 is rotated, and the connecting bolt 17 rotates along the butt welding reserved annular gap 3, so that the two U-shaped shaping clamps correct the circles of the two pipe openings.
Claims (3)
1. A shape correcting method before butt welding of pipe orifices of two large-diameter thin-wall steel pipes comprises a left steel pipe (1) and a right steel pipe (2) which are butted in place, wherein a butt welding reserved annular gap (3) is arranged between the left steel pipe (1) and the right steel pipe (2); the method is characterized by comprising the following steps:
firstly, taking a section of central shaft (4), welding and connecting an upper side nut (5), a front side nut (6) and a rear side nut (7) on the outer circular surface of the central shaft (4) at intervals of 120 degrees, and enabling the central axes of the three nuts to be arranged on the same circular surface vertical to the central shaft (4); taking three screws, connecting a front roller (11) at the outer side end of a front screw (9), connecting a rear roller (12) at the outer side end of a rear screw (10), and welding a U-shaped bracket (13) at the top end of an upper screw (8); screwing the inner side end of a front screw (9) on a front nut (6), screwing the inner side end of a rear screw (10) on a rear nut (7), screwing the inner side end of an upper screw (8) on an upper nut (5), and adjusting the distance from the outer side end of a front roller (11) to the central line of a central shaft (4) and the distance from the outer side end of a rear roller (12) to the central line of the central shaft (4) to be equal to the radius of the mouth of a butt-welded steel pipe by adjusting the screwing length of the screws and the nuts;
secondly, taking a screw jack (14), and fixedly connecting an inner side correction arc-shaped plate (15) to the top end of an output shaft of the screw jack (14);
thirdly, placing the shape correcting tool assembled in the first step into two pairs of welded steel pipes which are butted in place, and enabling the front side roller (11) and the rear side roller (12) to be respectively abutted and welded on the inner side walls of the steel pipes on two sides of the butt-welded reserved annular gap (3);
fourthly, the U-shaped bracket (13) is arranged at the position where the pipe orifice has obvious concave positions through rotating the shape correcting tool in the pipe, the screw jack (14) assembled with the inner side shape correcting arc-shaped plate (15) in the second step is placed in the U-shaped bracket (13), the inner side shape correcting arc-shaped plate (15) is abutted and welded on the inner side wall of the steel pipe at two sides of the butt welding reserved annular gap (3) through controlling the screw jack (14) until the concave positions are recovered, and then the screw jack (14) is controlled, so that an output shaft of the screw jack drives the inner side shape correcting arc-shaped plate (15) to fall off from the inner side wall of the pipe orifice of the steel pipe;
fifthly, the U-shaped bracket (13) is arranged at the position where the next pipe orifice has obvious concave through rotating the shape correction tool again in the pipe, and the fourth step is repeated.
2. The shape correction method before butt welding of the pipe orifices of the two large-caliber thin-wall steel pipes according to claim 1, characterized in that an inner threaded counter bore (18) is arranged on the outer side surface of an inner shape correction arc plate (15), an outer shape correction arc plate (16) is movably arranged on the outer side of the butt welding reserved annular gap (3), a threaded through hole (22) is arranged on the outer shape correction arc plate (16), and a connecting bolt (17) is screwed with the inner threaded counter bore (18) after sequentially passing through the threaded through hole (22) and the butt welding reserved annular gap (3) along the direction from outside to inside; after the obvious depressions on the two pairs of connecting pipe openings are corrected, the central shaft (4) is rotated through a wrench to drive the inner side correcting arc-shaped plate (15) and the outer side correcting arc-shaped plate (16) to rotate, so that two U-shaped openings formed by the inner side correcting arc-shaped plate (15) and the outer side correcting arc-shaped plate (16) realize circle correction on the butt welding pipe opening of the left steel pipe (1) and the butt welding pipe opening of the right steel pipe (2).
3. The shape correction method before butt welding of the pipe orifices of the two large-caliber thin-wall steel pipes according to claim 2, characterized in that a temporary platform (19) is built in the right-side steel pipe (2), a stepping motor (20) is arranged on the temporary platform (19), and an output shaft (21) of the stepping motor (20) is connected with the central shaft (4) through a coupler; the inner side correction arc-shaped plate (15) and the outer side correction arc-shaped plate (16) are rotated step by step through a stepping motor (20), so that the circle correction of the butt welding pipe opening of the left steel pipe (1) and the butt welding pipe opening of the right steel pipe (2) is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033325.0A CN115090718B (en) | 2022-08-26 | 2022-08-26 | Shape correction method before butt welding of pipe orifices of two large-caliber thin-wall steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033325.0A CN115090718B (en) | 2022-08-26 | 2022-08-26 | Shape correction method before butt welding of pipe orifices of two large-caliber thin-wall steel pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115090718A true CN115090718A (en) | 2022-09-23 |
| CN115090718B CN115090718B (en) | 2022-11-08 |
Family
ID=83300288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211033325.0A Active CN115090718B (en) | 2022-08-26 | 2022-08-26 | Shape correction method before butt welding of pipe orifices of two large-caliber thin-wall steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115090718B (en) |
Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU441063A1 (en) * | 1969-08-14 | 1974-08-30 | Предприятие П/Я А-7697 | Rotary tube trimming machine |
| US4908491A (en) * | 1987-01-29 | 1990-03-13 | Norsk Hydro A.S. | Integrated modular tool system for end preparation and end-to-end welding of pipes |
| JPH0725394U (en) * | 1993-10-18 | 1995-05-12 | 大成建設株式会社 | Roundness correction device for steel pipe |
| JPH07260043A (en) * | 1994-03-22 | 1995-10-13 | Mitsubishi Heavy Ind Ltd | Hydraulic iron pipe circularity holding device |
| JPH08229613A (en) * | 1995-02-28 | 1996-09-10 | Toshiba Corp | Method for correcting roundness of pipe and device therefor |
| CN2794669Y (en) * | 2005-03-25 | 2006-07-12 | 安徽华光玻璃集团有限公司 | Circule corrector for large caliber pipe butt-joint |
| JP2008100280A (en) * | 2006-10-19 | 2008-05-01 | Ogura Tekko Kk | Inner surface clamping device |
| CN201361644Y (en) * | 2009-01-20 | 2009-12-16 | 太原市阳光园不锈钢制品有限公司 | Pipe mouth rounding device of heavy-caliber steel pipe |
| KR20100130424A (en) * | 2009-06-03 | 2010-12-13 | 주식회사 스틸플라워 | Device for correcting round of large caliber steel pipe |
| JP2011111873A (en) * | 2009-11-30 | 2011-06-09 | Nippon Steel Corp | Steel pipe sheet pile structure and method for constructing the same |
| WO2012137924A1 (en) * | 2011-04-08 | 2012-10-11 | 新日鉄エンジニアリング株式会社 | Pipe material correction apparatus and pipe material correction method |
| CN202684504U (en) * | 2012-05-22 | 2013-01-23 | 戴刚平 | Splicing processing all-in-one machine for steel tube and flange |
| CN203417962U (en) * | 2013-08-07 | 2014-02-05 | 浙江兴土桥梁专用装备制造有限公司 | Steel pipe roundness correction device for bridge |
| CN204018435U (en) * | 2014-09-01 | 2014-12-17 | 中国石油集团渤海石油装备制造有限公司 | A kind of steel pipe aligning internal support device |
| CN104526204A (en) * | 2014-12-30 | 2015-04-22 | 山西汾西重工有限责任公司 | Collapse-prevention supporting device for welding multiple hole holders on cylinder wall |
| CN105396904A (en) * | 2015-12-22 | 2016-03-16 | 中国石油天然气集团公司 | Correcting device for correcting shape of opening of conveying pipe |
| CN205496303U (en) * | 2016-04-18 | 2016-08-24 | 德阳市东汽实业开发有限责任公司 | Circularity school shape frock |
| CN107309299A (en) * | 2017-08-16 | 2017-11-03 | 江苏阳明船舶装备制造技术有限公司 | One kind welding mouth of pipe school sired results dress and school circle method |
| CN108787803A (en) * | 2018-06-27 | 2018-11-13 | 中船澄西船舶修造有限公司 | A kind of thin-walled nozzle shaping tooling |
| CN109201781A (en) * | 2018-11-09 | 2019-01-15 | 徐利威 | A kind of ship welding nozzle school sired results assembling device |
| CN109821936A (en) * | 2019-03-04 | 2019-05-31 | 天津太合节能科技有限公司 | A kind of steel pipe tune circle device |
| CN111672939A (en) * | 2020-07-07 | 2020-09-18 | 中国能源建设集团山西电力建设有限公司 | Simple manual correction device and correction method for deformation of thin-wall large-caliber butt welding pipeline opening |
| CN211637825U (en) * | 2020-01-13 | 2020-10-09 | 王辉 | Welding pipe orifice roundness correction tool device for ship |
| CN212350971U (en) * | 2020-05-12 | 2021-01-15 | 广东水电二局股份有限公司 | Steel pipe group is to rounding device in tunnel |
| CN213162535U (en) * | 2020-06-08 | 2021-05-11 | 江苏中大杆塔有限公司 | Pipe fitting repairing device for steel pipe tower |
| CN214866300U (en) * | 2021-04-07 | 2021-11-26 | 中建七局安装工程有限公司 | Heavy-calibre steel pipe sunken prosthetic devices |
| WO2022009575A1 (en) * | 2020-07-10 | 2022-01-13 | Ｊｆｅスチール株式会社 | Steel pipe roundness prediction model generation method, steel pipe roundness prediction method, steel pipe roundness control method, steel pipe manufacturing method, and steel pipe roundness prediction device |
| CN215745612U (en) * | 2021-08-20 | 2022-02-08 | 金品冠科技集团有限公司 | Large pipe fitting rounding device during flange plate welding |
-
2022
- 2022-08-26 CN CN202211033325.0A patent/CN115090718B/en active Active
Patent Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU441063A1 (en) * | 1969-08-14 | 1974-08-30 | Предприятие П/Я А-7697 | Rotary tube trimming machine |
| US4908491A (en) * | 1987-01-29 | 1990-03-13 | Norsk Hydro A.S. | Integrated modular tool system for end preparation and end-to-end welding of pipes |
| JPH0725394U (en) * | 1993-10-18 | 1995-05-12 | 大成建設株式会社 | Roundness correction device for steel pipe |
| JPH07260043A (en) * | 1994-03-22 | 1995-10-13 | Mitsubishi Heavy Ind Ltd | Hydraulic iron pipe circularity holding device |
| JPH08229613A (en) * | 1995-02-28 | 1996-09-10 | Toshiba Corp | Method for correcting roundness of pipe and device therefor |
| CN2794669Y (en) * | 2005-03-25 | 2006-07-12 | 安徽华光玻璃集团有限公司 | Circule corrector for large caliber pipe butt-joint |
| JP2008100280A (en) * | 2006-10-19 | 2008-05-01 | Ogura Tekko Kk | Inner surface clamping device |
| CN201361644Y (en) * | 2009-01-20 | 2009-12-16 | 太原市阳光园不锈钢制品有限公司 | Pipe mouth rounding device of heavy-caliber steel pipe |
| KR20100130424A (en) * | 2009-06-03 | 2010-12-13 | 주식회사 스틸플라워 | Device for correcting round of large caliber steel pipe |
| JP2011111873A (en) * | 2009-11-30 | 2011-06-09 | Nippon Steel Corp | Steel pipe sheet pile structure and method for constructing the same |
| WO2012137924A1 (en) * | 2011-04-08 | 2012-10-11 | 新日鉄エンジニアリング株式会社 | Pipe material correction apparatus and pipe material correction method |
| CN202684504U (en) * | 2012-05-22 | 2013-01-23 | 戴刚平 | Splicing processing all-in-one machine for steel tube and flange |
| CN203417962U (en) * | 2013-08-07 | 2014-02-05 | 浙江兴土桥梁专用装备制造有限公司 | Steel pipe roundness correction device for bridge |
| CN204018435U (en) * | 2014-09-01 | 2014-12-17 | 中国石油集团渤海石油装备制造有限公司 | A kind of steel pipe aligning internal support device |
| CN104526204A (en) * | 2014-12-30 | 2015-04-22 | 山西汾西重工有限责任公司 | Collapse-prevention supporting device for welding multiple hole holders on cylinder wall |
| CN105396904A (en) * | 2015-12-22 | 2016-03-16 | 中国石油天然气集团公司 | Correcting device for correcting shape of opening of conveying pipe |
| CN205496303U (en) * | 2016-04-18 | 2016-08-24 | 德阳市东汽实业开发有限责任公司 | Circularity school shape frock |
| CN107309299A (en) * | 2017-08-16 | 2017-11-03 | 江苏阳明船舶装备制造技术有限公司 | One kind welding mouth of pipe school sired results dress and school circle method |
| CN108787803A (en) * | 2018-06-27 | 2018-11-13 | 中船澄西船舶修造有限公司 | A kind of thin-walled nozzle shaping tooling |
| CN109201781A (en) * | 2018-11-09 | 2019-01-15 | 徐利威 | A kind of ship welding nozzle school sired results assembling device |
| CN109821936A (en) * | 2019-03-04 | 2019-05-31 | 天津太合节能科技有限公司 | A kind of steel pipe tune circle device |
| CN211637825U (en) * | 2020-01-13 | 2020-10-09 | 王辉 | Welding pipe orifice roundness correction tool device for ship |
| CN212350971U (en) * | 2020-05-12 | 2021-01-15 | 广东水电二局股份有限公司 | Steel pipe group is to rounding device in tunnel |
| CN213162535U (en) * | 2020-06-08 | 2021-05-11 | 江苏中大杆塔有限公司 | Pipe fitting repairing device for steel pipe tower |
| CN111672939A (en) * | 2020-07-07 | 2020-09-18 | 中国能源建设集团山西电力建设有限公司 | Simple manual correction device and correction method for deformation of thin-wall large-caliber butt welding pipeline opening |
| WO2022009575A1 (en) * | 2020-07-10 | 2022-01-13 | Ｊｆｅスチール株式会社 | Steel pipe roundness prediction model generation method, steel pipe roundness prediction method, steel pipe roundness control method, steel pipe manufacturing method, and steel pipe roundness prediction device |
| CN214866300U (en) * | 2021-04-07 | 2021-11-26 | 中建七局安装工程有限公司 | Heavy-calibre steel pipe sunken prosthetic devices |
| CN215745612U (en) * | 2021-08-20 | 2022-02-08 | 金品冠科技集团有限公司 | Large pipe fitting rounding device during flange plate welding |
Non-Patent Citations (3)
| Title |
|---|
| 冯一辉等: "长距离大口径钢顶管施工关键技术", 《中国市政工程》 * |
| 张啊妮等: "连续油管管-管对接焊焊前准备工作的探讨", 《热加工工艺》 * |
| 詹华等: "大胀力间隙可调式气动管道内对口器", 《石油工程建设》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115090718B (en) | 2022-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9555463B2 (en) | Piping system | |
| CN111745316A (en) | Rapid positioning and correcting method for butt joint of steel pipes | |
| CN211361085U (en) | A boxing device for piping erection | |
| CN103600157A (en) | Automatic welding walking device in small-diameter pipeline | |
| CN218134167U (en) | Shape correcting tool before butt welding of pipe orifices of two large-diameter thin-wall steel pipes | |
| CN115090718B (en) | Shape correction method before butt welding of pipe orifices of two large-caliber thin-wall steel pipes | |
| CN109366099B (en) | method for manufacturing special-shaped spiral body | |
| CN114589385A (en) | Take centering and autogiration's long oil pipe welding set | |
| CN108581395B (en) | Process method for assembling and welding diffuser pipe in marine diesel engine | |
| CN214602884U (en) | Gas pipe flange welding platform | |
| CN219900785U (en) | H-shaped steel assembly machine capable of preventing falling off | |
| CN107012951B (en) | Connection node structure and method for main truss and secondary truss in space pipe truss | |
| CN115319415B (en) | BIM-based large-diameter three-way pipeline manufacturing process | |
| CN111001976A (en) | Opening aligning device for large-diameter thin-wall pipeline and using method thereof | |
| CN212310486U (en) | Simple manual correcting device for deformation of thin-wall large-caliber butt welding pipeline opening | |
| CN215846546U (en) | Oil gas long-distance pipeline welding device with correction function | |
| CN113523690B (en) | Correcting device and correcting method applied to lower cylinder of round stock yard stacker-reclaimer | |
| JPS61159275A (en) | Automatic welding method | |
| CN114749814B (en) | Butt joint tool and butt joint welding method for low-temperature liquid tank container cylinder | |
| CN209762546U (en) | Special-shaped sleeve for pipeline | |
| CN213223823U (en) | Quick alignment mouth of pipe correcting unit | |
| CN111672939A (en) | Simple manual correction device and correction method for deformation of thin-wall large-caliber butt welding pipeline opening | |
| CN218592227U (en) | Three-way pipe flange welding auxiliary device | |
| CN111922493A (en) | Steel pipe rotation welding auxiliary device and manufacturing method thereof | |
| CN115740981A (en) | Large steel pipe forming process based on JCO pipe blank preparation and point-mounted platform thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |