CN103752998A - Method for manufacturing high-weather-resistance multi-wire submerged-arc welded steel pipes for marine environments - Google Patents
Method for manufacturing high-weather-resistance multi-wire submerged-arc welded steel pipes for marine environments Download PDFInfo
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- CN103752998A CN103752998A CN201410009083.0A CN201410009083A CN103752998A CN 103752998 A CN103752998 A CN 103752998A CN 201410009083 A CN201410009083 A CN 201410009083A CN 103752998 A CN103752998 A CN 103752998A
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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
- B23K9/186—Submerged-arc welding making use of a consumable electrodes
- B23K9/188—Submerged-arc welding making use of a consumable electrodes making use of several electrodes
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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
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/025—Seam welding; Backing means; Inserts for rectilinear seams
- B23K9/0253—Seam welding; Backing means; Inserts for rectilinear seams for the longitudinal seam of tubes
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- 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
- B23K9/235—Preliminary treatment
-
- 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
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/06—Cast-iron alloys
Abstract
The invention discloses a method for manufacturing high-weather-resistance multi-wire submerged-arc welded steel pipes for marine environments. The method includes performing ultrasonic nondestructive flaw detection, groove machining and JCOE forming on high-weather-resistance steel plates so that the high-weather-resistance steel plates are double-C-shaped; internally and externally alternately welding thin weld layers by the aid of a multi-wire longitudinal submerged-arc welding technology; then internally welding a layer at a low speed on a small scale; externally welding a layer at a low speed on a small scale; then respectively internally and externally welding second layers. The high-weather-resistance steel plates conform to ASTMA690 (American society for testing material A690) standards, and the copper contents of the high-weather-resistance steel plates are higher than 0.5%. The method has the advantages that a process is exquisite and simple, the high-weather-resistance steel pipes with the copper contents higher than 0.5% for the ASTMA690 marine environments are introduced into the multi-wire longitudinal submerged-arc welding field, welding modes are improved from the traditional manual welding, gas-shielded welding and single-wire submerged-arc welding to multi-wire longitudinal submerged-arc welding, accordingly, the production efficiency can be greatly improved, the ultralow-temperature impact resistance of the multi-wire submerged-arc welded steel pipes can be improved, and Charp impact values of the high-weather-resistance multi-wire submerged-arc welded steel pipes at the temperature of minus 60 DEG C can reach 60J at least.
Description
Technical field
The present invention relates to material welding field, specifically belong to high weather-proof multi-wire submerged-arc Coiling Welded Pipe preparation method for a kind of marine environment.
Background technology
Weathering steel, it is weather resisting steel, be the low-alloy steel series between ordinary steel and stainless steel, weathering steel is added the corrosion-resistant elements such as a small amount of copper, nickel and forms by straight carbon steel, have high-quality steel tough, mould prolong, the characteristic such as moulding, welding, abrasion, high temperature, antifatigue; Weatherability is 2～8 times of straight carbon steel, coating is straight carbon steel 1.5～10 times.Meanwhile, it has antirust, makes the features such as member is anticorrosively lengthened the life, attenuate consumption reduction, and saving of labor is energy-conservation.Weathering steel is mainly used in railway, vehicle, bridge, pylon etc. and is exposed to for a long time the steel construction using in atmosphere.For the manufacture of structural members such as the containers of sulfide hydrogen corrosive medium in container, rail truck, oil derrick, harbour building, production platform and chemical petroleum equipment.
There is protection rusty scale atmospheric corrosion resistance, can be used for manufacturing the low-alloy structural steel of the steel constructions such as vehicle, bridge, pylon, container.Compared with straight carbon steel, weathering steel has better etch resistant properties in atmosphere.Compared with stainless steel, weathering steel only has micro-alloying element, such as phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium etc., and alloying element total amount only accounts for a few percent, and unlike stainless steel, reaches tens percent, and therefore price is comparatively cheap.
Weathering steel principle is in steel, to add after the trace elements such as phosphorus, copper, chromium, nickel, makes steel surface form the fine and close and very strong diaphragm of tack, hinders corrosion and spreads inward and develop, and protects the matrix below rusty scale, to slow down its corrosion rate.The amorphous state spinel oxides layer that the approximately 50 μ m～100 μ m that form between rusty scale and matrix are thick is fine and close and good with parent metal adhesion, due to the existence of this layer of dense oxide film, stoped oxygen and water in atmosphere to infiltrate to steel substrate, slow down corrosion and developed in depth and breadth to ferrous materials, greatly improved the atmospheric corrosion resistance ability of ferrous materials.Weathering steel be can attenuate use, exposed use or simplify application, and make that goods are against corrosionly lengthened the life, the steel system of saving of labor's consumption reduction, upgrading, be also one and can incorporate modern metallurgical new mechanism, new technology, new technology and make the steel system of its sustainable development and innovation.
Weathering steel owing to having added alloying element, the especially interpolation of copper and P elements, although improved its weather resistance, makes the carbon equivalent increase and decrease of weathering steel, greatly reduces its Weldability.
Though the copper content range of current domestic weathering steel is 0.20%～0.55%; but copper content is all below 0.5%; and welding manner majority is take stick electrode welding (SMAW) and gas shielded arc welding (GMAW) as main; under a few cases, use the welding method of submerged-arc welding (SAW); while using submerged-arc welding (SAW), be the little standard welding of monofilament; great majority, for the welding of the steel construction series products of similar railway carriage, are not used in longitudinal submerged arc welded pipe field.
Vertical masonry joint submerged-arc welding is a kind of welding procedure that makes it to fuse together by between one or several naked metal consumable electrode and workpiece or several electric arc heated metal, and longitudinal submerged arc welded pipe, be to adopt JCOE or UOE steel pipe forming, have the steel pipe of one or two weld seam.Specification is from the steel pipe of external diameter 325mm to 1420mm.Straight-line joint submerged arc welding tube product is carried out GB50205-2001 < < code for acceptance of construction quality of steel structures > >, GB/T3091-2008 < < low-pressure fluid is carried the > with welded still pipe >, GB/T9711-2011 < < oil natural gas steel pipe standard > >, API Std API5L (45 editions) < < pipeline steel tube standard > >, the manufacturer's standards such as ASTM A252 < < welding and seamless steel pipe stake > >.
Summary of the invention
The object of this invention is to provide the marine environment copper content that a kind of novel, high efficiency, resistance to ultralow temperature impact and be greater than high weather-proof multi-wire submerged-arc Coiling Welded Pipe preparation method for 0.5% a kind of marine environment.
Technical scheme of the present invention is as follows:
A kind of high weather-proof multi-wire submerged-arc Coiling Welded Pipe preparation method for marine environment, by the copper content that meets ASTM A690 standard exceed 0.5% high weather resistance steel plate pass through ultrasonic flaw detection, machining groove, JCOE is molded into double C shape, then adopt and described inside and outsidely alternately weld thin layer multifibres vertical masonry joint submerged-arc welding technology and weld, be that first outside weld adopts carbon dioxide gas arc welding bottoming welding, then in, weldering adopts little standard jogging speed welding one deck, then outside weld adopts little standard jogging speed welding one deck, carry out respectively again the second layer welding of interior weldering and outside weld, before welding, steel pipe is preheated to 350 ℃ of left and right, after welding finishes, steel pipe is heated to 200～300 ℃, and be incubated 1 hour.
In described welding process, adopt H08NiCu5MnSi welding wire, in described H08NiCu5MnSi welding wire, copper content is greater than 0.5%, and adds the beneficial element of Mo, Ti and rare earth element.
Weld preheating post weld heat treatment, described specific weld preheating post weld heat treatment is characterised in that: before weldering, steel pipe is preheated to 350 ℃ of left and right, to prevent that in welding process, crackle produces.Welding finish after by steel pipe be heated to 200～300 ℃ and insulation 1 hour.
Beneficial effect of the present invention:
Adopt inside and outside double-deck multifibres vertical masonry joint submerged arc welding; significantly improved the production efficiency of marine environment high weather resistance steel pipe; technique of the present invention is exquisite simple; ASTM A690 marine environment is greater than to 0.5% high weather resistance steel pipe with copper content and has introduced multifibres vertical masonry joint submerged-arc welding field; welding manner is brought up to the submerged-arc welding of multifibres vertical masonry joint by traditional-handwork weldering, gas shielded arc welding and monofilament submerged arc welding; when greatly having improved production efficiency; also improved the resistance to ultralow temperature impact performance of multifibres longitudinal submerged arc welded pipe, made more than-60 ℃ of charp impact values can reach 60J.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Fig. 2 is welding sequence figure of the present invention.
Fig. 3 is weld seam heat treatment schematic diagram of the present invention.
Wherein number in the figure: 1,2,3,4 is sequence of welds number; 4 weld seams, 5 tracklayer heaters.
The specific embodiment
Referring to accompanying drawing, a kind of high weather-proof multi-wire submerged-arc Coiling Welded Pipe preparation method for marine environment, by the copper content that meets ASTMA690 standard exceed 0.5% high weather resistance steel plate pass through ultrasonic flaw detection, machining groove, JCOE is molded into double C shape, then adopt and described inside and outsidely alternately weld thin layer multifibres vertical masonry joint submerged-arc welding technology and weld, be that first outside weld adopts carbon dioxide gas arc welding bottoming welding, then in, weldering adopts little standard jogging speed welding one deck, then outside weld adopts little standard jogging speed welding one deck, carry out respectively again the second layer welding of interior weldering and outside weld, before welding, steel pipe is preheated to 350 ℃ of left and right, after welding finishes, steel pipe is heated to 200～300 ℃, and be incubated 1 hour.
In described welding process, adopt H08NiCu5MnSi welding wire, in described H08NiCu5MnSi welding wire, copper content is greater than 0.5%, and adds the beneficial element of Mo, Ti and rare earth element.
Having manufactured the longitudinal submerged arc welded pipe that a collection of specification is φ 900 × 19.05 × 10000mm, is the parameter in manufacture process and the data of having manufactured rear Physical Chemistry Experiment analysis below.
Table one ASTM A690 high weather resistance steel multifibres longitudinal submerged arc welded pipe welding parameter
The spectrum analysis of table two ASTM A690 high weather resistance steel multifibres longitudinal submerged arc welded pipe body
The spectrum analysis of table three ASTM A690 high weather resistance steel multifibres longitudinal submerged arc welded pipe weld seam
The tension test of table four ASTM A690 high weather resistance steel multifibres longitudinal submerged arc welded pipe
Many longitudinal submerged arc welded pipes of the high copper steel of table five ASTM A690 guided bend test
The Charpy-type test of the high copper steel multifibres of table six ASTM A690 longitudinal submerged arc welded pipe
The high weather-proof multifibres longitudinal submerged arc welded pipe hardness test of table seven ASTM A690
Claims (2)
1. a high weather-proof multi-wire submerged-arc Coiling Welded Pipe preparation method for marine environment, it is characterized in that: by the copper content that meets ASTM A690 standard exceed 0.5% high weather resistance steel plate pass through ultrasonic flaw detection, machining groove, JCOE is molded into double C shape, then adopt and described inside and outsidely alternately weld thin layer multifibres vertical masonry joint submerged-arc welding technology and weld, be that first outside weld adopts carbon dioxide gas arc welding bottoming welding, then in, weldering adopts little standard jogging speed welding one deck, then outside weld adopts little standard jogging speed welding one deck, carry out respectively again the second layer welding of interior weldering and outside weld, before welding, steel pipe is preheated to 350 ℃ of left and right, after welding finishes, steel pipe is heated to 200 ~ 300 ℃, and be incubated 1 hour.
2. high weather-proof multi-wire submerged-arc Coiling Welded Pipe preparation method for a kind of marine environment according to claim 1, it is characterized in that: in described welding process, adopt H08NiCu5MnSi welding wire, in described H08NiCu5MnSi welding wire, copper content is greater than 0.5%, and adds the beneficial element of Mo, Ti and rare earth element.
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| CN201410009083.0A CN103752998B (en) | 2014-01-08 | 2014-01-08 | A kind of high-weather-resistamulti-wire multi-wire submerged-arc welded steel pipes for marine environments preparation method |
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| CN201410009083.0A CN103752998B (en) | 2014-01-08 | 2014-01-08 | A kind of high-weather-resistamulti-wire multi-wire submerged-arc welded steel pipes for marine environments preparation method |
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| CN103752998B CN103752998B (en) | 2016-08-17 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002014A (en) * | 2014-05-19 | 2014-08-27 | 南京钢铁股份有限公司 | Shielded metal arc welding technology for steel used for resisting to atmospheric corrosion in coastal region |
| CN104785908A (en) * | 2015-04-10 | 2015-07-22 | 上海中远川崎重工钢结构有限公司 | Welding methods for weathering resistant steel Q355NHD |
| CN105014198A (en) * | 2015-07-21 | 2015-11-04 | 宝鸡中铁宝桥天元实业发展有限公司 | Welding method for weathering steel |
| CN107813036A (en) * | 2016-09-13 | 2018-03-20 | 张盘 | A kind of two-sided single track buried arc welding method of cut deal mariages |
| CN107891216A (en) * | 2017-11-14 | 2018-04-10 | 宝鸡中铁宝桥天元实业发展有限公司 | High-strength steel thick plates stress concentration prevention method |
| CN108747215A (en) * | 2018-06-01 | 2018-11-06 | 江阴市三和重工钢制品有限公司 | The manufacturing process of small radius-thickness ratio Q690 grades of arm submerged-arc welded (SAW) pipes |
| CN109454316A (en) * | 2018-11-02 | 2019-03-12 | 合肥紫金钢管股份有限公司 | High temperature high voltage resistant high alloy submerged-arc welding steel pipe welding procedure |
| CN112008207A (en) * | 2020-07-22 | 2020-12-01 | 海洋石油工程（青岛）有限公司 | Structural pipe prefabricating method |
| CN112276311A (en) * | 2020-09-03 | 2021-01-29 | 海洋石油工程（青岛）有限公司 | Assembly welding process for ultra-large-diameter steel piles |
| CN113618285A (en) * | 2021-10-12 | 2021-11-09 | 艾美特焊接自动化技术(北京)有限公司 | Lifting type longitudinal seam welding equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104002014A (en) * | 2014-05-19 | 2014-08-27 | 南京钢铁股份有限公司 | Shielded metal arc welding technology for steel used for resisting to atmospheric corrosion in coastal region |
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| CN104785908A (en) * | 2015-04-10 | 2015-07-22 | 上海中远川崎重工钢结构有限公司 | Welding methods for weathering resistant steel Q355NHD |
| CN105014198A (en) * | 2015-07-21 | 2015-11-04 | 宝鸡中铁宝桥天元实业发展有限公司 | Welding method for weathering steel |
| CN107813036A (en) * | 2016-09-13 | 2018-03-20 | 张盘 | A kind of two-sided single track buried arc welding method of cut deal mariages |
| CN107891216A (en) * | 2017-11-14 | 2018-04-10 | 宝鸡中铁宝桥天元实业发展有限公司 | High-strength steel thick plates stress concentration prevention method |
| CN108747215A (en) * | 2018-06-01 | 2018-11-06 | 江阴市三和重工钢制品有限公司 | The manufacturing process of small radius-thickness ratio Q690 grades of arm submerged-arc welded (SAW) pipes |
| CN109454316A (en) * | 2018-11-02 | 2019-03-12 | 合肥紫金钢管股份有限公司 | High temperature high voltage resistant high alloy submerged-arc welding steel pipe welding procedure |
| CN112008207A (en) * | 2020-07-22 | 2020-12-01 | 海洋石油工程（青岛）有限公司 | Structural pipe prefabricating method |
| CN112276311A (en) * | 2020-09-03 | 2021-01-29 | 海洋石油工程（青岛）有限公司 | Assembly welding process for ultra-large-diameter steel piles |
| CN113618285A (en) * | 2021-10-12 | 2021-11-09 | 艾美特焊接自动化技术(北京)有限公司 | Lifting type longitudinal seam welding equipment |
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Address after: Beijing Lu, Baohe Industrial District of Hefei City, Anhui Province, No. 31 230051 Patentee after: Hefei Ziking Pipe Inc. Address before: Beijing Lu, Baohe Industrial District of Hefei City, Anhui Province, No. 31 230051 Patentee before: HeFei Ziking Steel Pipe Inc. |
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Denomination of invention: Method for manufacturing high-weather-resistance multi-wire submerged-arc welded steel pipes for marine environments Effective date of registration: 20171222 Granted publication date: 20160817 Pledgee: Hefei Xingtai financing guarantee Group Limited Pledgor: Henan Ziking Pipe Inc. Registration number: 2017340000444 |
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Date of cancellation: 20181023 Granted publication date: 20160817 Pledgee: Hefei Xingtai financing guarantee Group Limited Pledgor: Henan Ziking Pipe Inc. Registration number: 2017340000444 |