CN104858536A - Method for producing large-diameter thick-wall longitudinal submerged arc welded pipe - Google Patents
Method for producing large-diameter thick-wall longitudinal submerged arc welded pipe Download PDFInfo
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- CN104858536A CN104858536A CN201510301595.9A CN201510301595A CN104858536A CN 104858536 A CN104858536 A CN 104858536A CN 201510301595 A CN201510301595 A CN 201510301595A CN 104858536 A CN104858536 A CN 104858536A
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- steel plate
- pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a method for producing a large-diameter thick-wall longitudinal submerged arc welded pipe. The ranges of mass percents of chemical components are that C is not more than 0.22%, Si is not more than 0.45%, Mn is not more than 1.6%, P is not more than 0.025%, S is not more than 0.005%, Cu is not more than 0.50%, Mo is not more than 0.50%, Cr is not more than 0.50%, Nb, V and Ti are not more than 0.15%, and the balance is Fe. The smelting is performed through an oxygen blowing basic converter or a n electric furnace, fine grain pure killed steel with the yield strength between 245 MPa and 555 MPa is obtained through vacuum degassing and calcium and tiny titanium treatment and is processed into a steel plate; the steel plate undergoes edge milling to mill a groove dimension favorable for welding, a forming machine set is adopted to enable the steel plate to be formed through one-time prebending, and the prebending is large arc prebending; the prebending forming is in a center constant forming mode, the steel pipe is pressed into pipe blank; the steel plate undergoes internal welding and external welding and then undergoes mechanical diameter expanding, nondestructive testing and water pressure after being formed so as to guarantee a welded joint, and a steel pipe that meets the users' requirements is obtained. The method improves production efficiency through weld joint formation and solves the problem and meets the requirements for the large-diameter thick-wall pipe in actual production.
Description
Technical field
The present invention relates to a kind of steel pipe's production method.Particularly relate to a kind of JCOE shaping heavy caliber thick wall straight-line joint submerged arc welding tube manufacture method.
Background technology
Steel pipe, as important engineering material, has very consequence in the development of the national economy, is widely used in the field such as fluid conveying, large stadium, offshore platform, chemical industry, bridge in oil, natural gas transport, production, life.Increase this just to have higher requirement to the bore of steel pipe and wall thickness along with expanding economy discharge pressure is relative with conveying capacity.Existing small-diameter, thin-walled steel pipe can not meet high pressure oil, natural gas transport and the field such as production, life.
Summary of the invention
In order to overcome the deficiency that prior art exists, the object of this invention is to provide a kind of heavy caliber thick wall straight-line joint submerged arc welding tube.
The present invention is achieved by the following technical solutions:
A kind of heavy caliber thick wall straight-line joint submerged arc welding tube production method, it is characterized in that: the chemical composition mass percent scope of this heavy caliber thick wall straight-line joint submerged arc welding tube is: C≤0.22%, Si≤0.45%, Mn≤1.6%, P≤0.025%, S≤0.005%, Cu≤0.50%, Mo≤0.50%, Cr≤0.50%, Nb+V+Ti≤0.15%, surplus is Fe, and concrete grammar is as follows:
1) oxygen blast basic bessemer converter or electric furnace smelting, obtains the pure killed steel of the fine grain of yield strength between 245Mpa ~ 555Mpa through vacuum outgas, calcium and Trace Titanium Treatment, is processed into steel plate;
2) steel plate milling side milling goes out to be beneficial to the groove size of welding, and edges of boards both sides 20 ~ 40mm surfaces externally and internally is polished, and adopts shaping machine set, makes a steel plate pre-bending shaping, and pre-bending adopts orthodrome pre-bending; 3) molding mode that bending and molding employing center is constant, is pressed into pipe;
4) after steel plate forming through interior weldering, outside weld, then guarantee welding point by machinery expanding, Non-Destructive Testing, hydraulic pressure, be met user require steel pipe.
In step 4) of the present invention, interior layer and outer layer all use four wire bond wire bonds to connect.Welding process strictly controls welding parameter, and ensure that weld width is at 22-25mm, below reinforcement 2.5mm, increases knuckle radius; During four wire bond wire bonds connect, an angle vertical increases weld width, and latter three are tilted successively; Two spacing 10 ~ 12mm, two three spacing 12 ~ 14mm, three four spacing 20 ~ 22mm.
Compared with prior art, the invention has the beneficial effects as follows: by the technological break-through on heavy caliber thick wall straight-line joint submerged arc welding tube, increase the bore of steel pipe and wall thickness, meet actual production raw in large-sized heavy-wall tube demand, ensure that steel pipe obtains service life.Larger relative to existing steel pipe bore, wall thickness is thicker, is the condition that oil transportation is provided convenience.By the steel pipe that the JCOE method of forming is shaping, 4 double-submerged arcs connect method and improve appearance of weld and improve production efficiency, solve the problems referred to above and meet demand to large-sized heavy-wall tube in actual production.
Accompanying drawing explanation
Fig. 1 is the structural representation of interior layer and outer layer in the present invention.
Fig. 2 is that the present invention four wire bond wire bond connects middle angle of welding gun schematic diagram.
Fig. 3 is the seam center figure of interior layer and outer layer in the present invention.
specific implementation method
Below in conjunction with accompanying drawing, the present invention is described in detail.
A kind of heavy caliber thick wall straight-line joint submerged arc welding tube production method, the chemical composition mass percent scope of this heavy caliber thick wall straight-line joint submerged arc welding tube is: C≤0.22%, Si≤0.45%, Mn≤1.6%, P≤0.025%, S≤0.005%, Cu≤0.50%, Mo≤0.50%, Cr≤0.50%, Nb+V+Ti≤0.15%, surplus is Fe, and concrete grammar is as follows:
1) oxygen blast basic bessemer converter or electric furnace smelting, obtains the pure killed steel of the fine grain of yield strength between 245Mpa ~ 555Mpa through vacuum outgas, calcium and Trace Titanium Treatment, is processed into steel plate;
2) steel plate milling side milling goes out to be beneficial to the groove size of welding, and edges of boards both sides 20 ~ 40mm surfaces externally and internally is polished, and adopts shaping machine set, makes a steel plate pre-bending shaping, and pre-bending adopts orthodrome pre-bending; 3) molding mode that bending and molding employing center is constant, is pressed into pipe;
4) after steel plate forming through interior weldering, outside weld, then guarantee welding point by machinery expanding, Non-Destructive Testing, hydraulic pressure, be met user require steel pipe.
Purchasing of raw materials low S and low P steel plate, suitably reduces carbon equivalent, improves the solderability of pipe.Material is oxygen blast basic bessemer converter or electric furnace smelting process and the pure killed steel of the fine grain of SMYS between 245Mpa ~ 555Mpa produced through vacuum outgas, calcium and Trace Titanium Treatment, milling side milling goes out to be beneficial to the groove size of welding, 20 ~ 40mm surfaces externally and internally the polishing of edges of boards both sides, the shaping JCOE shaping machine set adopting international advanced person, prebending machine 2000T pressure, can make a steel plate pre-bending shaping, and pre-bending adopts orthodrome pre-bending, effectively avoid that pipe is tubular to be after shaping in a pout, efficiency is high.Bending forming machine is 3600T pressure, and adopt the molding mode that center is constant, the pipe precision be pressed into is high, and circularity is good, and without weighing wounded, stress distribution is even, and Bending Mould can ensure that pipe opening amount is even, prevents the misalignment of pipe, scrap (bridge) phenomenon.As seen in Figure 1 after steel plate forming through interior layer 2, use four wire bond wire bonds to connect, outer layer 3 uses four wire bond wire bonds to connect, and 1 is body.Then guarantee that welding point and steel pipe meet user's requirement by machinery expanding, Non-Destructive Testing, hydraulic pressure etc.
Welding process strictly will control welding parameter (seeing the following form) and ensure that weld width is at 22-25mm, and below reinforcement 2.5mm, increases knuckle radius.The stress of the excessive then welding toe of weld reinforcement, knuckle radius is just large.Thick-walled pipe easily produces toe crack in process under arms.As shown in Figure 2 in four wire bonds, be respectively 11,12,13,14 from front to back.11 angle vertical increase weld width, and latter three (12,13,14) tilt successively.11 12 spacing 10 ~ 12mm, 12 13 spacing 12 ~ 14mm, 13 14 spacing 20 ~ 22mm.Coordinate corresponding welding parameter can obtain good seam center (Fig. 3), ensure welding quality.
In the fabrication process, the physicochemical property experiments such as tension test, Charpy-type test, guided bend test, raw material analysis of chemical elements need be carried out to product, to reach pipe line steel relevant criterion and customer requirement.
Steel pipe thickness of the present invention is at 16mm ~ 30mm, and caliber is at Φ 711mm ~ Φ 1067mm.Use the pipeline of this product, oil and gas transmission requirement can be met completely, ensure that the service life of pipeline.
Claims (3)
1. a heavy caliber thick wall straight-line joint submerged arc welding tube production method, it is characterized in that: the chemical composition mass percent scope of this heavy caliber thick wall straight-line joint submerged arc welding tube is: C≤0.22%, Si≤0.45%, Mn≤1.6%, P≤0.025%, S≤0.005%, Cu≤0.50%, Mo≤0.50%, Cr≤0.50%, Nb+V+Ti≤0.15%, surplus is Fe, and concrete grammar is as follows:
1) oxygen blast basic bessemer converter or electric furnace smelting, obtains the pure killed steel of the fine grain of yield strength between 245Mpa ~ 555Mpa through vacuum outgas, calcium and Trace Titanium Treatment, is processed into steel plate;
2) steel plate milling side milling goes out to be beneficial to the groove size of welding, and edges of boards both sides 20 ~ 40mm surfaces externally and internally is polished, and adopts shaping machine set, makes a steel plate pre-bending shaping, and pre-bending adopts orthodrome pre-bending; 3) molding mode that bending and molding employing center is constant, is pressed into pipe;
4) after steel plate forming through interior weldering, outside weld, then guarantee welding point by machinery expanding, Non-Destructive Testing, hydraulic pressure, be met user require steel pipe.
2. heavy caliber thick wall straight-line joint submerged arc welding tube production method according to claim 1, is characterized in that: in step 4), and interior layer and outer layer all use four wire bond wire bonds to connect.
3. heavy caliber thick wall straight-line joint submerged arc welding tube production method according to claim 2, is characterized in that: welding process strictly controls welding parameter, and ensure that weld width is at 22-25mm, below reinforcement 2.5mm, increases knuckle radius; During four wire bond wire bonds connect, an angle vertical increases weld width, and latter three are tilted successively; Two spacing 10 ~ 12mm, two three spacing 12 ~ 14mm, three four spacing 20 ~ 22mm.
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| CN201510301595.9A CN104858536A (en) | 2015-06-05 | 2015-06-05 | Method for producing large-diameter thick-wall longitudinal submerged arc welded pipe |
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| CN201510301595.9A CN104858536A (en) | 2015-06-05 | 2015-06-05 | Method for producing large-diameter thick-wall longitudinal submerged arc welded pipe |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798440A (en) * | 2016-05-27 | 2016-07-27 | 宝鸡石油钢管有限责任公司 | Pure titanium or titanium alloy/carbon steel laminar composite plate welding method |
| CN105921545A (en) * | 2016-05-27 | 2016-09-07 | 宝鸡石油钢管有限责任公司 | Manufacturing method of pure titanium or titanium alloy/carbon steel laminar composite welded pipe |
| CN106001956A (en) * | 2016-05-27 | 2016-10-12 | 宝鸡石油钢管有限责任公司 | Manufacturing method of titanium/steel layered compound welded pipe |
| CN106694610A (en) * | 2017-03-29 | 2017-05-24 | 无锡市蓝博金属制品有限公司 | Preparation process of oil filler pipe |
| CN106895252A (en) * | 2017-03-10 | 2017-06-27 | 广州增立钢管结构股份有限公司 | A kind of steel pipe and its manufacture method with blocking magnetic conduction construction |
| CN106989216A (en) * | 2016-01-20 | 2017-07-28 | 浙江三花智能控制股份有限公司 | The processing method of pipe fitting body, pipe fitting and pipe fitting |
| WO2018177020A1 (en) * | 2017-03-27 | 2018-10-04 | 宝山钢铁股份有限公司 | Method for manufacturing clad steel pipe |
| CN109514211A (en) * | 2019-01-25 | 2019-03-26 | 江苏冰溶管业有限公司 | A kind of production method of straight seam welded pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205597A (en) * | 2007-12-10 | 2008-06-25 | 华北石油管理局第一机械厂 | Method for manufacturing X100 pipeline steel submerged arc straight weld pipe |
| CN101205596A (en) * | 2007-12-10 | 2008-06-25 | 华北石油管理局第一机械厂 | X120 pipeline steel submerged arc straight weld pipe and manufacture technique thereof |
| JP2009214127A (en) * | 2008-03-10 | 2009-09-24 | Jfe Steel Corp | Submerged arc welding method for steel material |
| JP2010274276A (en) * | 2009-05-27 | 2010-12-09 | Jfe Steel Corp | Submerged arc welding method for steel material |
| CN102248023A (en) * | 2011-08-05 | 2011-11-23 | 中国石油集团渤海石油装备制造有限公司 | Method for manufacturing X70 steel-level large deformation-resistant longitudinally submerged arc welding pipe |
| CN103556054A (en) * | 2013-10-14 | 2014-02-05 | 宝鸡石油钢管有限责任公司 | High-strength medium-caliber thick-wall subsea pipeline and its manufacturing method |
| CN103556079A (en) * | 2013-10-14 | 2014-02-05 | 宝鸡石油钢管有限责任公司 | High-strength water riser main-pipe with excellent anti-fatigue performance and manufacturing method thereof |
-
2015
- 2015-06-05 CN CN201510301595.9A patent/CN104858536A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205597A (en) * | 2007-12-10 | 2008-06-25 | 华北石油管理局第一机械厂 | Method for manufacturing X100 pipeline steel submerged arc straight weld pipe |
| CN101205596A (en) * | 2007-12-10 | 2008-06-25 | 华北石油管理局第一机械厂 | X120 pipeline steel submerged arc straight weld pipe and manufacture technique thereof |
| JP2009214127A (en) * | 2008-03-10 | 2009-09-24 | Jfe Steel Corp | Submerged arc welding method for steel material |
| JP2010274276A (en) * | 2009-05-27 | 2010-12-09 | Jfe Steel Corp | Submerged arc welding method for steel material |
| CN102248023A (en) * | 2011-08-05 | 2011-11-23 | 中国石油集团渤海石油装备制造有限公司 | Method for manufacturing X70 steel-level large deformation-resistant longitudinally submerged arc welding pipe |
| CN103556054A (en) * | 2013-10-14 | 2014-02-05 | 宝鸡石油钢管有限责任公司 | High-strength medium-caliber thick-wall subsea pipeline and its manufacturing method |
| CN103556079A (en) * | 2013-10-14 | 2014-02-05 | 宝鸡石油钢管有限责任公司 | High-strength water riser main-pipe with excellent anti-fatigue performance and manufacturing method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 《油气输送管制造技术》编委会: "《油气输送管制造技术》", 30 June 2011, 石油工业出版社 * |
| 宋徳琦等: "《天然气输送与储存工程》", 31 December 2004, 石油工业出版社 * |
| 郭生武等: "《输送管线完整性检测、评价及修复技术》", 31 May 2007, 石油工业出版社 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989216A (en) * | 2016-01-20 | 2017-07-28 | 浙江三花智能控制股份有限公司 | The processing method of pipe fitting body, pipe fitting and pipe fitting |
| US10907752B2 (en) | 2016-01-20 | 2021-02-02 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Pipe body, pipe and method of making pipe |
| CN105798440A (en) * | 2016-05-27 | 2016-07-27 | 宝鸡石油钢管有限责任公司 | Pure titanium or titanium alloy/carbon steel laminar composite plate welding method |
| CN105921545A (en) * | 2016-05-27 | 2016-09-07 | 宝鸡石油钢管有限责任公司 | Manufacturing method of pure titanium or titanium alloy/carbon steel laminar composite welded pipe |
| CN106001956A (en) * | 2016-05-27 | 2016-10-12 | 宝鸡石油钢管有限责任公司 | Manufacturing method of titanium/steel layered compound welded pipe |
| CN105798440B (en) * | 2016-05-27 | 2018-04-03 | 宝鸡石油钢管有限责任公司 | A kind of pure titanium or titanium alloy/carbon steel stratiform composite board welding method |
| CN106895252A (en) * | 2017-03-10 | 2017-06-27 | 广州增立钢管结构股份有限公司 | A kind of steel pipe and its manufacture method with blocking magnetic conduction construction |
| WO2018177020A1 (en) * | 2017-03-27 | 2018-10-04 | 宝山钢铁股份有限公司 | Method for manufacturing clad steel pipe |
| US11707773B2 (en) | 2017-03-27 | 2023-07-25 | Baoshan Iron & Steel Co., Ltd. | Method for manufacturing clad steel pipe |
| CN106694610A (en) * | 2017-03-29 | 2017-05-24 | 无锡市蓝博金属制品有限公司 | Preparation process of oil filler pipe |
| CN109514211A (en) * | 2019-01-25 | 2019-03-26 | 江苏冰溶管业有限公司 | A kind of production method of straight seam welded pipe |
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