CN203215104U - Longitudinal submerged arc welding three layer compound steel tube for oceans - Google Patents

Longitudinal submerged arc welding three layer compound steel tube for oceans Download PDF

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Publication number
CN203215104U
CN203215104U CN 201320192781 CN201320192781U CN203215104U CN 203215104 U CN203215104 U CN 203215104U CN 201320192781 CN201320192781 CN 201320192781 CN 201320192781 U CN201320192781 U CN 201320192781U CN 203215104 U CN203215104 U CN 203215104U
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CN
China
Prior art keywords
welding
joint
steel
submerged arc
corrosion
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
Application number
CN 201320192781
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Chinese (zh)
Inventor
韦再生
孙永喜
刘奎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI YUEYUECHAO STEEL TUBE CO Ltd
Original Assignee
SHANGHAI YUEYUECHAO STEEL TUBE CO Ltd
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Publication date
Application filed by SHANGHAI YUEYUECHAO STEEL TUBE CO Ltd filed Critical SHANGHAI YUEYUECHAO STEEL TUBE CO Ltd
Priority to CN 201320192781 priority Critical patent/CN203215104U/en
Application granted granted Critical
Publication of CN203215104U publication Critical patent/CN203215104U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a longitudinal submerged arc welding three layer compound steel tube for oceans. The longitudinal submerged arc welding three layer compound steel tube comprises a steel plate made of GB/T1591Q390D base steel and anti-corrosion layers made of GB/T423706Cr19Ni9NbN materials and arranged on the inner side and the outer side of the base steel. Connector positions of the steel plate are connected through welding. The welding structures comprises a middle locating joint, a middle base steel joint, an inner side anti-corrosion joint and an outer side anti-corrosion joint. An H08C welding wire is adopted in the middle locating joint. SAW fine welding and ISO14343-AS199+ISO14174-SAFB welding materials are adopted in the middle base steel joint. Saw fine welding and H08C welding materials of ISO14174-SAFB model are adopted for the inner side anti-corrosion layer joint and the outer side anti-corrosion layer joint. The longitudinal submerged arc welding three layer compound steel tube has the advantages that the inner surface of the steel tube is a GB/T423706Cr19Ni9NbN stainless steel layer, so that anti-corrosion performance is good, and low-temperature toughness is good; the substrate is GB/T1591Q390D, so that low-temperature toughness is good (the impacting energy is larger than or equal to 34J/cm2 at -20 DEG C).

Description

Ocean three layers of composite steel tube of vertical masonry joint submerged arc welding
Technical field
The utility model relates to three layers of composite steel tube of a kind of vertical masonry joint submerged arc welding, relates in particular to the structure of the welding part of this composite steel tube.
Background technique
Have a large amount of salinities such as sodium chloride, potassium chloride etc. in the seawater, integral body is alkalescence; The variation of its degree of depth, the oxygen content of its dissolving differs, the influence of sunlight, temperature, wave is arranged again, and the steel structure of being on active service in seawater must have high intensity, good low-temperature flexibility, good corrosion resistance, big wall thickness, could guarantee that structural stability is reliable and have the life-span of length.
So, be necessary to design a kind of ocean three layers of composite steel tube of vertical masonry joint submerged arc welding.
Summary of the invention
The utility model technical issues that need to address have provided a kind of ocean with three layers of composite steel tube of vertical masonry joint submerged arc welding, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: steel plate; Described steel plate by material be the base steel of GB/T1591Q390D and on inside and outside two sides of described base steel, material is that the anticorrosion layer of GB/T423706Cr19Ni9NbN is formed; The joint of described steel plate is by being welded to connect; Described welded structure is interfix junction point, middle base steel junction point and inside and outside two side anticorrosion layer junction points; Described interfix junction point uses welding wire H08C; It is astute and able that the base steel junction point adopts SAW in the middle of described, and the wlding that uses is ISO14343-A S199+ISO14174-S A FB; Described inside and outside two side anticorrosion layer junction points adopt SAW astute and able, and the wlding that uses is ISO14174-S A FB as H08C, model.
Compared with prior art, the beneficial effects of the utility model are: this steel pipe internal-surface is the GB/T423706Cr19Ni9NbN stainless steel lining, and corrosion resistance is good, and low-temperature flexibility is good, and base material is GB/T1591Q390D, good (the 20 ℃ of ballistic works 〉=34J/cm2) of low-temperature flexibility.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As seen from Figure 1: the utility model comprises: steel plate; Described steel plate by material be the base steel 1 of GB/T1591Q390D and on inside and outside two sides of described base steel 1, material is that the anticorrosion layer (2,3) of GB/T423706Cr19Ni9NbN is formed; The joint of described steel plate is by being welded to connect; Described welded structure is interfix junction point 4, middle base steel junction point 5 and inside and outside two side anticorrosion layer junction points (6,7); Described interfix junction point 4 uses welding wire H08C; Base steel junction point 5 adopts SAW astute and able in the middle of described, and the wlding that uses is ISO14343-A S199+ISO14174-S A FB; Described inside and outside two side anticorrosion layer junction points (6,7) adopt SAW astute and able, and the wlding that uses is ISO14174-S A FB as H08C, model.
The base steel of the GB/T1591Q390D that adopts in the utility model, the anticorrosion layer of GB/T423706Cr19Ni9NbN, welding wire H08C, SAW are astute and able, wlding is that ISO14343-A S199+ISO14174-S A FB and wlding are that H08C, model are that ISO14174-S A FB can both find on the technical manual in this field.
The utility model is with anticorrosion layer (2, material is GB/T423706Cr19Ni9NbN)+base steel (1, material is GB/T1591Q390D)+anticorrosion layer (3, material is GB/T423706Cr19Ni9NbN) Clad Steel Plate is through milling the limit, edges of boards pre-bending, behind the O forming, prewelding GMAW locatees joint close (4, use welding wire H08C(Atlantic Ocean welding consumables)), carry out outer SAW astute and able (7 again, use wlding H08C(Atlantic Ocean welding consumables), model ISO14174-S A FB), middle SAW astute and able (5, use wlding ISO14343-A S199+ISO14174-S A FB) and interior SAW astute and able (6, use wlding H08C(Atlantic Ocean welding consumables)+ISO14174-S A FB), after welding was finished, pre-weld seam was fused by submerged arc weld fully.The sizing that eliminates stress then, the hydrostatic test, check wait guarantees that welded joint and steel pipe apparent size reach customer requirements.
In manufacture process, need basic unit, the stretching of anticorrosion layer weld seam, bending, impact property, hardness to product, the adhesive strength of anticorrosion layer and basic unit is advanced and the anti-corrosion capability of multiple layer carries out verification experimental verification, to reach relevant tube line standard and client's technical requirements.
Steel pipe groundwork thickness 26.0~32.0mm of the present utility model, anticorrosion layer thickness is generally 2.2~3.2mm; Can be according to anticorrosion particular requirement and User Agreement adjustment or pipe inner and outer surface increase anticorrosive coat.

Claims (1)

1. an ocean comprises: steel plate with three layers of composite steel tube of vertical masonry joint submerged arc welding; It is characterized in that: described steel plate by material be the base steel of GB/T1591Q390D and on inside and outside two sides of described base steel, material is that the anticorrosion layer of GB/T423706Cr19Ni9NbN is formed; The joint of described steel plate is by being welded to connect; Described welded structure is interfix junction point, middle base steel junction point and inside and outside two side anticorrosion layer junction points; Described interfix junction point uses welding wire H08C; It is astute and able that the base steel junction point adopts SAW in the middle of described, and the wlding that uses is ISO14343-A S199+ISO14174-S A FB; Described inside and outside two side anticorrosion layer junction points adopt SAW astute and able, and the wlding that uses is ISO14174-S A FB as H08C, model.
CN 201320192781 2013-04-16 2013-04-16 Longitudinal submerged arc welding three layer compound steel tube for oceans Expired - Fee Related CN203215104U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320192781 CN203215104U (en) 2013-04-16 2013-04-16 Longitudinal submerged arc welding three layer compound steel tube for oceans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320192781 CN203215104U (en) 2013-04-16 2013-04-16 Longitudinal submerged arc welding three layer compound steel tube for oceans

Publications (1)

Publication Number Publication Date
CN203215104U true CN203215104U (en) 2013-09-25

Family

ID=49204643

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320192781 Expired - Fee Related CN203215104U (en) 2013-04-16 2013-04-16 Longitudinal submerged arc welding three layer compound steel tube for oceans

Country Status (1)

Country Link
CN (1) CN203215104U (en)

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130925

Termination date: 20160416