CN110303263A - A kind of bridge stainless steel clad plate welding method - Google Patents

A kind of bridge stainless steel clad plate welding method Download PDF

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Publication number
CN110303263A
CN110303263A CN201910602419.7A CN201910602419A CN110303263A CN 110303263 A CN110303263 A CN 110303263A CN 201910602419 A CN201910602419 A CN 201910602419A CN 110303263 A CN110303263 A CN 110303263A
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CN
China
Prior art keywords
welding
stainless steel
clad plate
gas shielded
shielded arc
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Pending
Application number
CN201910602419.7A
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Chinese (zh)
Inventor
李松
汪晶洁
彭思远
吴君明
王晓斌
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Nanjing Iron and Steel Co Ltd
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Nanjing Iron and Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Iron and Steel Co Ltd filed Critical Nanjing Iron and Steel Co Ltd
Priority to CN201910602419.7A priority Critical patent/CN110303263A/en
Publication of CN110303263A publication Critical patent/CN110303263A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby

Abstract

The invention discloses a kind of bridge stainless steel clad plate welding methods, belong to welding technique field.The present invention is directed to the stainless steel clad plate being combined by the base of Q370qD and the cladding of 316L stainless steel; base is welded using solid gas shielded arc welding or using the method for solid gas shielded arc welding bottoming and double filament Lincoln weld fillings according to welding groove; medicine core gas shielded arc welding welding transition layer is used again and carries out capping; the quality of weld joint of bridge stainless steel clad plate can be significantly improved, there is excellent welding performance.

Description

A kind of bridge stainless steel clad plate welding method
Technical field
The present invention relates to welding technique field, in particular to a kind of bridge stainless steel clad plate welding procedure.
Background technique
Stainless compound steel plate can reduce the consumption of precious metal, be greatly lowered as a kind of resource-conserving product Project cost realizes low cost and high performance perfect combination, gives full play to two kinds of material property advantages, both has stainless steel resistance to The characteristics such as burn into spatter property, diamagnetism and long-life, and there is the good solderability of carbon steel, mouldability, drawability, thermal conductivity And high-strength characteristic, it is a kind of multifunctional material.In order to guarantee that stainless steel clad plate does not lose original synthesis because of welding Performance must design a kind of suitable welding procedure, guarantee the various performances of welding point.
Summary of the invention
The object of the present invention is to provide a kind of bridge stainless steel clad plate welding procedures, and it is compound to improve bridge stainless steel The quality of weld joint of plate makes the welding performance for having excellent, reduces production cost, improves welding work environment and improves work effect Rate.
The present invention specifically adopts the following technical scheme that
A kind of bridge stainless steel clad plate welding method, it is characterised in that the stainless steel clad plate by Q370qD base The cladding of layer and 316L stainless steel is combined, and the stainless steel clad plate uses double-Y shaped or V-type welding groove;The weldering It is as follows to connect method:
When welding groove is double-Y shaped, first filled using solid gas shielded arc welding bottoming and double filament Lincoln welds Method welds base, then uses medicine core gas shielded arc welding welding transition layer and carries out capping;
When welding groove is V-type, base is first welded using solid gas shielded arc welding, then uses medicine core gas shielded arc welding Welding transition layer simultaneously carries out capping.
The present invention is directed to the stainless steel clad plate being combined by the base of Q370qD and the cladding of 316L stainless steel, according to Welding groove is using solid gas shielded arc welding or using the side of solid gas shielded arc welding bottoming and double filament Lincoln weld fillings Method welds base, then using medicine core gas shielded arc welding welding transition layer and carries out capping, can significantly improve bridge stainless steel double The quality of weld joint of plywood has excellent welding performance.
Detailed description of the invention
Fig. 1 is double-Y shaped welding groove schematic diagram;
Fig. 2 is V-type welding groove schematic diagram;
Fig. 3 is double-Y shaped welding groove welding schematic diagram;
Fig. 4 is V-type welding groove welding schematic diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The present invention executes 8165 standard of GB/T, and sheet mechanical property index and process performance index require to be shown in Table 1 He respectively Table 2;
1 mechanical performance index of table
2 process performance index of table
The stainless steel clad plate that the present invention uses is combined by the base of Q370qD and the cladding of S31603 stainless steel, Middle groundwork thickness is 36mm, and cladding is with a thickness of 3mm;Mechanical property and processing performance detection are carried out to it, and are drawn and obtained table 3-1 With table 3-2;
Table 3-1 material object mechanical property
Table 3-2 material object processing performance
Embodiment 1
Such as Fig. 1, stainless steel clad plate uses double-Y shaped welding groove, and remembers that number is NFD1, and wherein bevel angle is 35 °, Blunt edge size is 2mm, and prosposition butt welding is carried out under the conditions of temperature is 6 DEG C, humidity is 36%.Weld preheating temperature is 60 DEG C, weldering When base's welding using solid gas shielded arc welding bottoming and double filament Lincoln welds filling method;Solid gas shielded arc welding is adopted It is welded with ER50-6 (ф 1.2mm) welding wire;Double filament Lincoln welds are welded using H08Mn2E (ф 2.0mm) welding wire with SJ101q Agent welding;Using medicine core gas shielded arc welding welding transition layer and carry out capping again, when welding transition layer uses GFS-309L (ф 1.2mm) flux-cored wire uses GFS-316L (ф 1.2mm) flux-cored wire when welding capping;Solid gas shielded arc welding and medicine core gas Body protection weldering is all made of CO2Gas shield, CO2Gas purity is greater than 99.5%, and flow is 15~20L/min.And before reverse side welding Back chipping processing is carried out, specific welding parameter is shown in Table 4 and combines Fig. 3.
4 banjo fixing butt jointing welding situation of table
Note: in welding method mark, 123 indicate narrow gapsubmerged-arc-welding;135 indicate solid welding wire CO2Gas shielded arc welding; 136 indicate flux-cored wire CO2Gas shielded arc welding.
After the completion of welding, the mechanical property of welding point and the test result of processing performance are shown in Table 5-1~table 7-1.
Table 5-1 bond pull and bend test result
Table 6-1 connector low-temperature impact test result (J)
Table 7-1 connector hardness test result (HV10)
Embodiment 2
Such as Fig. 2, stainless steel clad plate uses V-type welding groove, and remembers that number is PN3, and wherein bevel angle is 40 °, slope Mouth gap is 5mm, carries out prosposition butt welding under conditions of temperature is 17 DEG C, humidity is 26% and back side lining ceramic backing.Before weldering Preheating temperature is 60 DEG C, and the welding of Han Shi base uses solid gas shielded arc welding;Solid gas shielded arc welding uses ER50-6 (ф 1.2mm) welding wire welds;Using medicine core gas shielded arc welding welding transition layer and carry out capping again, when welding transition layer uses GFS- 309L (ф 1.2mm) flux-cored wire uses GFS-316L (ф 1.2mm) flux-cored wire when welding capping;Solid gas shielded arc welding CO is all made of with medicine core gas shielded arc welding2Gas shield, CO2Gas purity is greater than 99.5%, and flow is 15~20L/min.And it is anti- Back chipping processing is carried out before the welding of face, specific welding parameter is shown in Table 5 and combines Fig. 4.
5 banjo fixing butt jointing welding situation of table
Note: in welding method mark, 123 indicate narrow gapsubmerged-arc-welding;135 indicate solid welding wire CO2Gas shielded arc welding; 136 indicate flux-cored wire CO2Gas shielded arc welding.
After the completion of welding, the mechanical property of welding point and the test result of processing performance are shown in Table 5-2~table 7-2.
Table 5-2 bond pull and bend test result
Table 6-2 connector low-temperature impact test result (J)
Table 7-2 connector hardness test result (HV10)
After the S31603+Q370D rolling stainless compound steel plate welding of (3+36) mm thickness, drawn through Welded Joints It stretches, be bent, impacting, dropping hammer etc. after examining, properties are qualified, compare base and cladding, have more excellent mechanical property And processing performance, ultrasonic examination is carried out in postwelding butt joint in 24 hours, according to 47013.3 standard of NB/T, carrying out flaw detection result Reach I grades of requirements.The macro morphology of welding point shows as clad steel plate welding point and is well combined, melt run and base, mistake The defects of not finding cavity, crackle, is crossed between layer and coating, and clad steel plate welding quality is good.
The cladding of Welded Joints carries out sulfuric acid-copper sulphate Huey test.Welding point does not need to carry out at sensitization Reason, directly progress Huey test.Sample is after Huey test, and weld seam and fusion line position are clear, and base material is substantially not Corrosion.
Welded Joints carry out chloroazotic acid Huey test, and carry out microcosmic spy to the welding point before and after intercrystalline corrosion It surveys.By result as it can be seen that weld seam and parent material interface are clear before intercrystalline corrosion, base material austenite structure mays be seen indistinctly, and weld seam is obvious Erosion comes out, and is austenite+high temperature ferritic structure.Base material has no erosion after intercrystalline corrosion, and weld dimensions tissue can See, it is similar with sample tissue before intercrystalline corrosion.As it can be seen that welding joint structure does not change before and after intercrystalline corrosion, welding point With good anti intercrystalline corrosion performance.
Therefore, which has excellent welding performance with stainless compound steel plate.
Above-mentioned specific embodiment is only explanation of the invention, is not limitation of the present invention, art technology Personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as All by the protection of Patent Law in scope of the presently claimed invention.

Claims (7)

1. a kind of bridge stainless steel clad plate welding method, it is characterised in that the stainless steel clad plate by Q370qD base It is combined with the cladding of 316L stainless steel, the stainless steel clad plate uses double-Y shaped or V-type welding groove;The welding Method is as follows:
When welding groove is double-Y shaped, first using the method for solid gas shielded arc welding bottoming and double filament Lincoln weld fillings Base is welded, medicine core gas shielded arc welding welding transition layer is then used and carries out capping;
When welding groove is V-type, base is first welded using solid gas shielded arc welding, is then welded using medicine core gas shielded arc welding Transition zone simultaneously carries out capping.
2. bridge as described in claim 1 stainless steel clad plate welding method, it is characterised in that suitable substrate with a thickness of 38±3mm。
3. bridge as described in claim 1 stainless steel clad plate welding method, it is characterised in that the stainless steel clad plate, When welding groove is double-Y shaped, bevel angle is 35 ± 5 °, and blunt edge size is 2 ± 1mm;When welding groove is V-type, groove Angle is 40 ± 5 °, and groove gap is 5 ± 1mm.
4. bridge as described in claim 1 stainless steel clad plate welding method, it is characterised in that when welding groove is double-Y shaped When, base's welding is using solid gas shielded arc welding bottoming and pair method of filament Lincoln welds filling: solid gas shielded arc welding It is welded using ER50-6 (ф 1.2) welding wire, current strength is 240~260A, and arc voltage is 30~32V, speed of welding 22 ~23m/h;Double filament Lincoln welds are welded using H08Mn2E (ф 2.0) welding wire with SJ101q solder flux, current strength 520 ~700A, arc voltage are 33~36V, and speed of welding is 25~33m/h;It is used when medicine core gas shielded arc welding welding transition layer GFS-309L (ф 1.2) flux-cored wire, current strength be 160~180A, arc voltage be 24~26V, speed of welding be 20~ 30m/h;GFS-316L (ф 1.2) flux-cored wire is used when welding capping, current strength is 160~180A, arc voltage 24 ~26V, speed of welding are 27~31m/h.
5. bridge as described in claim 1 stainless steel clad plate welding method, it is characterised in that when welding groove is V-type When, base's welding uses solid gas shielded arc welding: solid gas shielded arc welding is welded using ER50-6 (ф 1.2) welding wire, and electric current is strong Degree is 220~280A, and arc voltage 32V, speed of welding is 8.9~21m/h;It is adopted when medicine core gas shielded arc welding welding transition layer With GFS-309L (ф 1.2) flux-cored wire, current strength 160A, arc voltage 28V, speed of welding is 21~22m/h;Weldering Using GFS-316L (ф 1.2) flux-cored wire, current strength 160A, arc voltage 28V, speed of welding 22 when connecing capping ~32m/h.
6. bridge as described in claim 1 stainless steel clad plate welding method, it is characterised in that weld preheating temperature is 60 DEG C, temperature is 60~160 DEG C between road, carries out back chipping processing before reverse side welding.
7. bridge as described in claim 1 stainless steel clad plate welding method, it is characterised in that the solid gas shield Weldering and medicine core gas shielded arc welding are all made of CO2 gas shield, and CO2 gas purity is greater than 99.5%, and flow is 15~20L/min.
CN201910602419.7A 2019-07-05 2019-07-05 A kind of bridge stainless steel clad plate welding method Pending CN110303263A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110666382A (en) * 2019-10-18 2020-01-10 太原理工大学 Welding method of metal laminated composite plate, device for preparing welding joint and process thereof
CN111360381A (en) * 2020-03-31 2020-07-03 南京钢铁股份有限公司 Welding method for stainless steel composite plate for container
CN111673217A (en) * 2020-05-11 2020-09-18 首钢集团有限公司 Method for welding composite board on single surface by adopting ceramic liner

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CN101982282A (en) * 2010-11-16 2011-03-02 四川电力建设三公司 Welding technology for butt welding of composite boards
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Publication number Priority date Publication date Assignee Title
JPH07314174A (en) * 1994-05-20 1995-12-05 Nippon Steel Corp Pipe making welding method of clad stainless steel pipe
CN101982282A (en) * 2010-11-16 2011-03-02 四川电力建设三公司 Welding technology for butt welding of composite boards
CN104191072A (en) * 2014-08-14 2014-12-10 梧州市旺捷机械制造有限公司 Welding method of stainless steel clad plate
CN105252116A (en) * 2015-10-10 2016-01-20 西安交通大学 Bi-metal metallurgy composite pipe welding method

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110666382A (en) * 2019-10-18 2020-01-10 太原理工大学 Welding method of metal laminated composite plate, device for preparing welding joint and process thereof
CN110666382B (en) * 2019-10-18 2021-06-25 太原理工大学 Welding method of metal laminated composite plate, device for preparing welding joint and process thereof
CN111360381A (en) * 2020-03-31 2020-07-03 南京钢铁股份有限公司 Welding method for stainless steel composite plate for container
CN111673217A (en) * 2020-05-11 2020-09-18 首钢集团有限公司 Method for welding composite board on single surface by adopting ceramic liner

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