CN110253108A - A kind of welding method of level-B steel+316L dissimilar steel - Google Patents
A kind of welding method of level-B steel+316L dissimilar steel Download PDFInfo
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- CN110253108A CN110253108A CN201910631804.4A CN201910631804A CN110253108A CN 110253108 A CN110253108 A CN 110253108A CN 201910631804 A CN201910631804 A CN 201910631804A CN 110253108 A CN110253108 A CN 110253108A
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Classifications
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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
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
-
- 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
-
- 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
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention provides a kind of welding method of level-B steel+316L dissimilar steel, it is characterized by: passing through multilayer and the welding sequence of multiple tracks, different layers welding bead carries out the welding of level-B steel+316L dissimilar steel using suitable welding parameter control temperature and heat input, welding method includes: 1) welding condition selection, and 2) groove type and assembly；3) it welds.The welding method of level-B steel+316L dissimilar steel provided by the invention solves the problems, such as that the welding of dissimilar material is easy to appear welding deformation, weldquality is difficult to ensure, the butt welding of different plate thickness can operate, and high production efficiency, application is strong, can promote the use of.
Description
Technical field
The invention belongs to welding technology fields, and in particular to a kind of welding method of level-B steel+316L dissimilar steel.
Background technique
Not only material itself in ingredient, aspect of performance has a larger difference to existing level-B steel+316L dissimilar steel, but also welds material
Material is also the same, and there are larger differences, if the welding method used is unreasonable, welding point is easy to appear crackle, stomata, slag inclusion
The defects of.316L steel belongs to austenitic stainless steel, and thermal coefficient is small, the big feature of linear expansion coefficient, and weld seam is being restrained when welding
Under state, the remaining stress of postwelding connector is larger, therefore welding deformation is easily generated in welding process, especially plate sheet welding when meeting
There is obvious deflection deformation；Due to the inherent characteristic of material, when level-B steel+316L dissimilar steel carries out welding electrode arc welding, weldquality
It is difficult to ensure.
Summary of the invention
The purpose of the present invention is to provide a kind of welding methods of level-B steel+316L dissimilar steel, it is intended to solve dissimilar material
The problem of welding is easy to appear welding deformation, weldquality is difficult to ensure.The present disclosure applies equally to steel plate docking to be connect with transition
The installation node of head and welding procedure.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme:
The present invention provides a kind of welding method of level-B steel+316L dissimilar steel, by multilayer and the welding sequence of multiple tracks,
Different layers welding bead carries out the welding of level-B steel+316L dissimilar steel using suitable welding parameter control temperature and heat input, specific to weld
It is as follows to connect method:
1) welding condition selects
1. welding equipment is selected: selecting direct current stick arc welder YD-400AT3HV；
2. welding material is selected: selecting diameter is the stainless steel electrode TS309 of 3.2mm or 4.0mm；
2) groove type and assembly
1. level-B steel plate is installed with docking for Stainless steel 316 L dissimilar steel using corner connection form, installation control gap≤
2mm, positioning are reinforced fixing；
2. plate stitch is using the form bevel of machining, 70-80 ° of bevel angle, all face grooves of polishing expose former material
Expect metallic luster；
3) it welds
1. level-B steel+316L dissimilar steel abutment joint uses multi-pass welding:
2. front welding, reverse side carries out carbon arc air gouging back chipping, is polished again with abrasive machine after back chipping, until exposing metal light
Pool；
3. back side bevel equally use with the symmetrical multi-layer multi-pass welding in front, welding parameter such as table 1, table 2:
The welding parameter of the horizontal docking of 1:B grades of steel+316L dissimilar steels of table
The welding parameter of the vertical docking of 2:B grades of steel+316L dissimilar steels of table
Preferably, in step 3), every layer of interlayer temperature is controlled at 100 DEG C or less.
Advantages of the present invention:
The process provided by the invention for welding together ship plate and austenitic stainless steel 316 L, passes through multilayer
And the welding sequence of multiple tracks, different layers welding bead are different using suitable welding parameter control temperature and heat input progress level-B steel+316L
The welding of kind steel, solves the problems, such as that the welding of dissimilar material is easy to appear welding deformation, weldquality is difficult to ensure.The present invention
Welding method make product that there is actual operation, can satisfy batch and use, by the soldering test of multiple and multiple angles,
Special welding procedure has been formulated, analyzed by mechanical property test etc., it is finally reached practical effect.This construction method can
To play guidance and reference function to like products.All-position welding construction, austenitic steel to CCSB and 316L dissimilar material
With the butt welding of AB/B dissimilar steel X-type groove SMAW, the butt welding of different plate thickness can be operated, and high production efficiency, application is strong,
It can promote the use of.
Detailed description of the invention
Fig. 1 is the mounting structure schematic diagram of level-B steel+316L dissimilar steel of the present invention；
Groove schematic diagram when Fig. 2 is 1 horizontal docking of the embodiment of the present invention；
Weld seam schematic diagram when Fig. 3 is 1 horizontal docking of the embodiment of the present invention；
Fig. 4 is the groove schematic diagram when embodiment of the present invention 2 stands docking；
Fig. 5 is the weld seam schematic diagram when embodiment of the present invention 2 stands docking；
Specific embodiment
In order to make the purpose of the present invention, technical solution and advantage are more clearly understood, and are passed through below in conjunction with attached drawing specific real
Applying example, the present invention is described in more detail.It should be appreciated that described herein, specific examples are only used to explain the present invention, and
It is not used in the restriction present invention.
Embodiment 1
A kind of welding method of the horizontal docking of level-B steel+316L dissimilar steel, structure are as shown in Figure 1.Level-B steel and 316L are different
Kind of steel thickness can be the steel plate of any thickness in range 3.0mm-50.0mm, and in the present embodiment, level-B steel plate thickness is preferably
20mm-25mm, 316L xenogenesis steel plate thickness are preferably 25mm, and specific welding method is as follows:
1) welding condition selects
1. welding equipment is selected: selecting direct current stick arc welder YD-400AT3HV；
2. welding material is selected: selecting diameter is the stainless steel electrode of 3.2mm or 4.0mm, trade mark TS309
(A302)；
2) groove type and assembly
1. level-B steel plate is installed with docking for Stainless steel 316 L dissimilar steel using corner connection form, installation control gap≤
2mm, positioning are reinforced fixing；
2. as shown in Fig. 2, plate stitch using machining form bevel, 70-80 ° of bevel angle, all face slopes of polishing
Mouth exposes raw material metal gloss；
3) it welds
Front bevel uses multi-layer multi-pass welding, and back side carbon arc air gouging back chipping, after abrasive machine polishing, back side bevel is same
Sample use with the symmetrical multi-layer multi-pass welding in front, Fig. 3 illustrate front and back sides welding sequence and its every layer of welding bead construction it is suitable
Sequence, number 1-22 respectively represents the construction serial number of welding bead in the middle, and corresponding specific welding condition is referring to table 3.
The welding parameter of the horizontal docking of 3:B grades of steel+316L dissimilar steels of table
| Weld level | Welding surface | Core diameter (mm) | Welding current (A) | Welding bead serial number |
| 1 | Front | Φ3.2 | 120~130 | 1 |
| 2 | Front | Φ4.0 | 140~150 | 2 |
| 3 | Front | Φ4.0 | 140~150 | 3-4 |
| 4 | Front | Φ4.0 | 140~150 | 5-7 |
| 5 | Front | Φ4.0 | 140~150 | 8-11 |
| 6 | The back side | Φ3.2 | 120~130 | 12 |
| 7 | The back side | Φ4.0 | 140~150 | 13 |
| 8 | The back side | Φ4.0 | 140~150 | 14-15 |
| 9 | The back side | Φ4.0 | 140~150 | 16-18 |
| 10 | The back side | Φ4.0 | 140~150 | 19-22 |
。
Welding process: with two accredited welders, as shown in Fig. 2, pressing 80 ° of double V-grooves, level-B steel plate thickness is
20mmmm, 316L xenogenesis steel plate thickness are 25mm, the requirement assembly level-B steel plate and Stainless steel 316 L xenogenesis of fit-up gap 0-2mm
Steel, and level-B steel plate and Stainless steel 316 L dissimilar steel are implemented laterally to reinforce, to prevent post welding distortion；Level-B steel plate and Stainless steel 316 L
After dissimilar steel is completed, regulate equipment and parameter according to above-mentioned requirements, by welding current 120-150A technological parameter into
Row welding.Front groove is welded first, by positive 1-5 layers of above-mentioned welding parameter welding, every layer is welded by welding bead serial number, the
The welding current of one layer of welding rod using diameter of phi 3.2mm, 120~130A carries out welding；Use diameter of phi for 2-5 layers below
The welding current of the welding rod of 4.0mm, 140~150A carries out welding；Period keeps welding bead interlayer temperature less than 100 degree, and groove is just
Face weld seam is divided into 5 layers and is soldered, every layer of welding bead quantity and pass sequence reference table 3 and Fig. 3.As shown in figure 3, being adopted at the groove back side
Continued being symmetrically welded for underside groove after abrasive machine is polished groove until exposing metallic luster with carbon arc air gouging back chipping, pressed
Above-mentioned positive 6-10 layers of welding parameter welding, every layer is welded by welding bead serial number.
Embodiment 2
A kind of welding method of the vertical docking of level-B steel+316L dissimilar steel, in the present embodiment, level-B steel plate thickness is preferably
20mm-25mm, 316L xenogenesis steel plate thickness are preferably 25mm, and specific welding method is as follows:
1) welding condition selects
1. welding equipment is selected: selecting direct current stick arc welder YD-400AT3HV；
2. welding material is selected: selecting diameter is the stainless steel electrode of 3.2mm or 4.0mm, trade mark TS309
(A302)；
2) groove type and assembly
1. level-B steel plate is installed with docking for Stainless steel 316 L dissimilar steel using corner connection form, installation control gap≤
2mm, positioning are reinforced fixing；
2. as shown in figure 4, plate stitch using machining form bevel, 70-75 ° of bevel angle, all face slopes of polishing
Mouth exposes raw material metal gloss；
3) it welds
Front bevel uses multi-layer multi-pass welding, and back side carbon arc air gouging back chipping, after abrasive machine polishing, back side bevel is same
Sample use with the symmetrical multi-layer multi-pass welding in front, Fig. 5 illustrate front and back sides welding sequence and its every layer of welding bead construction it is suitable
Sequence, corresponding specific welding condition is referring to table 4, and number 1-8 respectively represents the construction serial number of welding bead in the middle.
The welding parameter of the vertical docking of 4:B grades of steel+316L dissimilar steels of table
| Weld level | Welding surface | Core diameter (mm) | Welding current (A) | Welding bead serial number |
| 1 | Front | Φ3.2 | 100~110 | 1 |
| 2 | Front | Φ4.0 | 120~130 | 2-4 |
| 3 | The back side | Φ3.2 | 100~110 | 5 |
| 4 | The back side | Φ4.0 | 120~130 | 6-8 |
。
Welding process: with two accredited welders, as shown in figure 4, pressing 75 ° of double V-grooves, level-B steel plate thickness is
25mmmm, 316L xenogenesis steel plate thickness are 25mm, the requirement assembly level-B steel plate and Stainless steel 316 L xenogenesis of fit-up gap 0-2mm
Steel, and level-B steel plate and Stainless steel 316 L dissimilar steel are implemented laterally to reinforce, to prevent post welding distortion；Level-B steel plate and Stainless steel 316 L
After dissimilar steel is completed, regulate equipment and parameter according to above-mentioned requirements, by welding current 100-130A technological parameter into
Row welding.Front groove is welded first, by positive 1-2 layers of above-mentioned welding parameter welding, every layer is welded by welding bead serial number, the
The welding current of one layer of welding rod using diameter of phi 3.2mm, 100~110A carries out welding；2nd layer using diameter of phi 4.0mm's
Welding rod, the welding current of 120~130A carry out welding, the layer totally 3 welding bead；Period keeps welding bead interlayer temperature less than 100 degree,
Groove fillet in normal shear is divided into 2 layers and is soldered, as shown in figure 3, using carbon arc air gouging back chipping at the groove back side, abrasive machine polishing groove is straight
To after exposing metallic luster, continue being symmetrically welded for underside groove, by positive 3-4 layers of above-mentioned welding parameter welding, often
Layer is welded by welding bead serial number.
It is that visual examination, taking X-ray, Mechanics Performance Testing are carried out to the welding effect of above-described embodiment 1-2 below.
1. visual examination (evaluation criteria: GB/T3802-1997):
2.X ray makes film (evaluation criteria: GB/T3558-94):
Through taking X-ray, the defects of weld seam is without slag inclusion, stomata, crackle, weldquality assessment of conformity.
3. mechanics properties testing (evaluation criteria: GJB64.1A-97):
According to the above testing result, appearance and internal soundness, the mechanical property of welding point are all satisfied relevant criterion requirement.
Claims (2)
1. a kind of welding method of level-B steel+316L dissimilar steel, it is characterised in that: different by multilayer and the welding sequence of multiple tracks
Layer welding bead carries out the welding of level-B steel+316L dissimilar steel, specific welding side using suitable welding parameter control temperature and heat input
Method is as follows:
1) welding condition selects
1. welding equipment is selected: selecting direct current stick arc welder YD-400AT3HV；
2. welding material is selected: selecting diameter is the stainless steel electrode TS309 of 3.2mm or 4.0mm；
2) assembly positioning, groove type
1. level-B steel plate is installed with docking for Stainless steel 316 L dissimilar steel using corner connection form, installation control gap≤2mm determines
Position is reinforced fixing；
2. plate stitch is using the form bevel of machining, 70-80 ° of bevel angle, all face grooves of polishing expose raw material gold
Belong to gloss；
3) it welds
1. level-B steel+316L dissimilar steel abutment joint uses multi-pass welding:
2. front welding, reverse side carries out carbon arc air gouging back chipping, is polished again with abrasive machine after back chipping, until exposing metallic luster；
3. back side bevel equally use with the symmetrical multi-layer multi-pass welding in front, welding parameter such as table 1, table 2:
The welding parameter of the horizontal docking of 1:B grades of steel+316L dissimilar steels of table
The welding parameter of the vertical docking of 2:B grades of steel+316L dissimilar steels of table
2. a kind of welding method of level-B steel+316L dissimilar steel according to claim 1, it is characterised in that: in step 3),
Every layer of interlayer temperature is controlled at 100 DEG C or less.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587079A (en) * | 2019-10-24 | 2019-12-20 | 青岛磊金德冲压件有限公司 | Method for arc welding of stainless steel and dissimilar materials |
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| CN110253108B (en) | 2022-05-10 |
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