CN112207466A - Welding method for double-side coated stainless steel composite plate - Google Patents
Welding method for double-side coated stainless steel composite plate Download PDFInfo
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- 238000003466 welding Methods 0.000 title claims abstract description 162
- 239000002131 composite material Substances 0.000 title claims abstract description 79
- 239000010935 stainless steel Substances 0.000 title claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 26
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 10
- 239000010962 carbon steel Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 6
- 239000002932 luster Substances 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 238000010891 electric arc Methods 0.000 claims description 4
- 238000004372 laser cladding Methods 0.000 claims description 4
- 239000010953 base metal Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 84
- 239000007789 gas Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 12
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/346—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding
- B23K26/348—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
-
- 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
- B23K2103/05—Stainless steel
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Abstract
The invention belongs to the technical field of composite plate welding, and particularly relates to a welding method of a double-sided coated stainless steel composite plate, which comprises the following steps: (1) processing a groove: the double-sided coated stainless steel composite plate comprises a base layer, a composite layer A and a composite layer B; respectively opening V-shaped grooves on the A composite layer and the B composite layer and then butting the V-shaped grooves; (2) welding the base layer and the A compound layer: welding the V-shaped grooves on the truncated edge and the A-layer side to form a base layer welding line and an A-layer welding line; (3) b, welding multiple layers: and welding the V-shaped groove of the B-layer to form a B-layer welding seam. The invention realizes the online welding of the stainless steel and carbon steel layers of the double-sided clad composite plate by laser-arc hybrid welding, and has the advantages of simple and feasible process, good weld forming quality and high welding efficiency.
Description
Technical Field
The invention belongs to the technical field of composite plate welding, and particularly relates to a welding method of a double-faced clad stainless steel composite plate.
Background
The bimetal composite material can save a large amount of precious metals due to excellent mechanical property and good corrosion resistance, thereby reducing the cost and saving materials, and can be widely applied to the industrial fields of petrochemical industry, flue gas desulfurization, chemical industry, environmental protection and the like.
The stainless steel composite pipe is a new economic product which is gradually and widely accepted in civil pipeline markets of water delivery, heating power and the like in recent years, and can effectively overcome a plurality of defects of Fusion Bonded Epoxy (FBE), cement mortar lining and plastic lining steel pipes. Because the base carbon steel and the coating stainless steel are metallurgically combined, a cavity is not formed and the anticorrosive coating after long-time service does not fall off; the suitable pipe diameter range is large, and the on-site internal joint coating is not needed; the cladding is stainless steel, is very suitable for high-temperature media such as urban heat distribution pipelines and the like, and is a pipe type with a development prospect in the future.
The outer wall of the traditional bimetal composite pipe is made of carbon steel, and when the working condition of the pipeline service environment is severe, the base pipe is easy to corrode, so that the service life of the composite pipe is influenced. The double-coated composite pipe well solves the problem and has better market prospect.
The invention discloses a Chinese patent with publication number CN 201911070626.9 on 11/2/2020, the patent name is a welding method of a three-layer corrosion-resistant alloy composite plate, the method adopts a double V-shaped groove, and realizes the welding of the three-layer corrosion-resistant alloy composite plate by a laser and double-sided submerged arc welding method, but the method separately welds a connecting welding seam and an inner composite layer welding seam, so that the field station is tense, and the requirement of one-time online production cannot be met; the inner clad layer welding condition is poor, the defects of slag inclusion, undercut and the like are easy to occur by adopting submerged arc welding, the repair welding workload is large, personnel cannot drill in the small-pipe-diameter pipe during production, the repair welding once cladding amount is small during the welding of the small-pipe-diameter pipe, multilayer and multi-pass welding is needed, the interlayer processing workload is large, and the inner welding interlayer processing cannot be realized for the steel pipe with smaller pipe diameter.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide the welding method of the double-sided clad stainless steel composite plate, which can realize the online welding of the stainless steel and carbon steel layers on one side of the double-sided clad composite plate and has the advantages of simple and feasible process, good weld joint forming quality and high welding efficiency.
The realization process of the invention is as follows:
a welding method of a double-sided coated stainless steel composite plate comprises the following steps:
(1) processing a groove: the double-faced coated stainless steel composite plate comprises a base layer, a composite layer A and a composite layer B, wherein the base layer is a carbon steel layer, and the composite layer A and the composite layer B are both corrosion-resistant alloys; the double-sided coated stainless steel composite plate is subjected to double-sided V-shaped groove opening and then is butted;
(2) welding the base layer and the A compound layer: welding the V-shaped groove and the truncated edge on one side of the A composite layer to form a base layer welding line and an A composite layer welding line;
(3) b, welding multiple layers: and welding the V-shaped groove of the B-clad layer of the composite plate to form a B-clad layer welding seam.
Further, in the step (1), the height of the V-shaped groove on the double layer side A is 0-6 mm, the height of the V-shaped groove on the double layer side B is 0-6 mm, and the angles of the V-shaped grooves are all 70 +/-50 degrees.
Further, in the step (1), the thickness of the base layer is 2-30 mm, and the thickness ranges of the A composite layer and the B composite layer are both 0.2-8 mm.
Further, in the step (2), the welding of the base layer and the A composite layer adopts laser-electric arc composite welding, wherein the electric arc welding needs wire filling.
Further, in the step (3), submerged arc welding, gas shielded welding or laser cladding is adopted for welding the B compound layer, a corrosion-resistant alloy welding wire is selected as the welding wire, and the height of the welding line is not lower than that of the base metal.
Further, before the welding of the composite layer in the step (3), an angle grinder is adopted to polish the groove of the composite layer B from the outer wall, and surface oxides are removed until the metallic luster is exposed.
The invention has the beneficial effects that:
(1) the invention adopts double V-shaped grooves, the groove form is simple, and the processing is easy; the carbon steel layer and the inner wall stainless steel adopt a laser-arc composite welding process, electric arcs are stabilized through laser welding, the A compound layer obtains a better forming effect, polishing and cleaning work on a lower layer before welding of the compound layer is avoided, the A compound layer and the middle carbon steel layer are formed in a one-time welding mode, and the carbon steel layer forming device is suitable for online production.
(2) The invention realizes the online welding of stainless steel and carbon steel layers on the inner wall of the double-sided cladding composite board by laser-arc hybrid welding, and has the advantages of simple and feasible process, good weld forming quality and high welding efficiency.
Drawings
FIG. 1 is a schematic groove of the present invention;
FIG. 2 is a schematic view of a weld of the present invention;
in the figure, 1-base layer, 2-A multiple layers, 3-B multiple layers, 4-base layer welding seams, 5-A multiple layer welding seams and 6-B multiple layer welding seams are formed.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
In this example, a 304/X65/304 hot-rolled bimetal composite plate of (1+10+0.2) mm was welded, and the weld test piece size was 180X 500 mm.
(1) A double V-shaped groove is formed on the welding test plate, and the specific size is shown in figure 1: the thickness of the base layer 1 is 10mm, the thickness of the A compound layer 2 is 1mm, the thickness of the B compound layer 3 is 0.2mm, the height of the V-shaped groove on one side of the A compound layer 2 is 1.2mm, the groove angle is 70 degrees, the height of the V-shaped groove on one side of the B compound layer 3 is 0.2mm, and the groove angle is 120 degrees.
(2) And (3) butting the welding test plates, and welding the truncated edge and the V-shaped groove from one side of the A composite layer 2 by adopting laser-arc hybrid welding to form a base layer welding seam 4 and an A composite layer welding seam 5. The laser welding is carried out without wire filling, the arc welding adopts gas metal arc welding, the model of the welding wire is 309, the diameter is 1.2mm, the protective gas is pure argon, and the welding parameters are shown in the following table.
TABLE 1 laser welding parameters
| Defocus (mm) | Power (kw) | Welding speed (m/min) | Spot diameter (mm) |
| -5 | 7 | 1.3 | 0.2 |
TABLE 2 arc welding parameters
(3) And (3) polishing the groove of the B compound layer 3 by using an angle grinder, and removing surface oxides until the metallic luster is exposed.
(4) And welding the V-shaped groove of the B-clad layer 3 by adopting gas metal arc welding to form a B-clad layer welding seam 6. The welding material used for welding is 309 welding wires, the diameter of the welding wires is 1.2mm, the protective gas is pure argon, and the welding parameters are shown in the following table. And polishing the oxide on the surface of the welding seam by using a steel wire brush after welding until the metallic luster is exposed.
TABLE 3 welding parameters for gas metal arc welding
(5) And carrying out nondestructive and ray detection on the welding seam, and finding no defect. The mechanical properties of the weld joints were measured and the results are shown in the following table.
TABLE 4 weld performance test results
Example 2
In this example, a 304/Q235/304 hot-rolled bimetal composite plate having a thickness of (8+20+0.2) mm was welded, and the welded test plate had a size of 180X 500 mm.
(1) And forming double V-shaped grooves on the welding test plate, wherein the thickness of the base layer 1 is 20mm, the thickness of the A compound layer 2 is 8mm, the thickness of the B compound layer 3 is 0.2mm, the height of the V-shaped groove on one side of the A compound layer 2 is 6mm, the angle of the groove is 120 degrees, and the height of the V-shaped groove on one side of the B compound layer 3 is 0 mm.
(2) And (3) butting the welding test plates, and welding the truncated edge and the V-shaped groove from one side of the A composite layer 2 by adopting laser-arc hybrid welding to form a base layer welding seam 4 and an A composite layer welding seam 5. The laser welding is carried out without wire filling, the arc welding adopts gas metal arc welding, the model of the welding wire is 308, the diameter is 1.2mm, and the protective gas is 98% Ar + 2% O2. The weld bead on layer a 2 is continued 309 with arc welding until full.
(3) And (3) polishing the groove of the B compound layer 3 by using an angle grinder, and removing surface oxides until the metallic luster is exposed.
(4) And (3) welding the truncated edge at one side of the B composite layer 3 by adopting laser cladding to form a B composite layer welding seam 6. 309 metal powder is selected as welding material for welding, and pure Ar is adopted as protective gas. And polishing the oxide on the surface of the welding seam by using a steel wire brush after welding until the metallic luster is exposed.
Example 3
In this example, 825/Q235/304 hot-rolled bimetal composite plates of (0.2+30+8) mm were welded, and the size of the welded test plate was 180X 500 mm.
(1) And forming double V-shaped grooves on the welding test plate, wherein the thickness of the base layer 1 is 30mm, the thickness of the A compound layer 2 is 0.2mm, the thickness of the B compound layer 3 is 8mm, the height of the V-shaped groove on one side of the A compound layer 2 is 0mm, the height of the V-shaped groove on one side of the B compound layer 3 is 6mm, and the groove angle is 70 degrees.
(2) And (3) butting the welding test plates, and welding the truncated edges from one side of the A composite layer 2 by adopting laser-arc hybrid welding to form a base layer welding seam 4 and an A composite layer welding seam 5. The laser welding is carried out without wire filling, the arc welding adopts gas metal arc welding, the type of the welding wire is 625, the diameter is 1.2mm, and the protective gas is 98 percent Ar+2％O2。
(3) And (3) polishing the groove of the B compound layer 3 by using an angle grinder, and removing surface oxides until the metallic luster is exposed.
(4) And welding the V-shaped groove of the B-layer 3 by adopting submerged arc welding to form a B-layer welding seam 6. The welding adopts submerged arc welding, the welding material is 309 welding wires, the diameter of the welding wires is 3.2mm, and the flux is CHF 601. And polishing the oxide on the surface of the welding seam by using a steel wire brush after welding until the metallic luster is exposed.
Example 4
In this example, a 304/Q235/304 hot-rolled bimetal composite plate of (0.5+2+0.2) mm was welded, and the welded test plate size was 180X 500 mm.
(1) And forming double V-shaped grooves on the welding test plate, wherein the thickness of the base layer 1 is 2mm, the thickness of the A composite layer 2 is 0.5mm, the thickness of the B composite layer 3 is 0.2mm, the height of the V-shaped groove on one side of the A composite layer 2 is 0mm, and the height of the V-shaped groove on one side of the B composite layer 3 is 0.5 mm.
(2) And (3) butting the welding test plates, and welding the truncated edges from one side of the A composite layer 2 by adopting laser-arc hybrid welding to form a base layer welding seam 4 and an A composite layer welding seam 5. The laser welding is carried out without wire filling, the arc welding adopts gas metal arc welding, the type of the welding wire is 625, the diameter is 1.2mm, and the protective gas is 98 percent Ar +2 percent O2。
(3) And (3) polishing the groove of the B compound layer 3 by using an angle grinder, and removing surface oxides until the metallic luster is exposed.
(4) And (3) welding the V-shaped groove of the B-layer 3 by adopting laser cladding to form a B-layer welding seam 6. 309 metal powder is selected as welding material for welding, and pure argon is used as protective gas. And polishing the oxide on the surface of the welding seam by using a steel wire brush after welding until the metallic luster is exposed.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the present invention. Those skilled in the art can obtain technical solutions through logical analysis, reasoning or limited experiments according to the concepts of the present invention, and all such technical solutions are within the scope of the present invention.
Claims (6)
1. A welding method of a double-sided coated stainless steel composite plate is characterized by comprising the following steps:
(1) processing a groove: the double-faced coated stainless steel composite plate comprises a base layer, a composite layer A and a composite layer B, wherein the base layer is a carbon steel layer, and the composite layer A and the composite layer B are both corrosion-resistant alloys; the double-sided coated stainless steel composite plate is subjected to double-sided V-shaped groove opening and then is butted;
(2) welding the base layer and the A compound layer: welding the V-shaped groove and the truncated edge on one side of the A composite layer to form a base layer welding line and an A composite layer welding line;
(3) b, welding multiple layers: and welding the V-shaped groove of the B-clad layer of the composite plate to form a B-clad layer welding seam.
2. The welding method of the double-sided clad stainless steel composite plate according to claim 1, wherein: in the step (1), the height of the V-shaped groove on the A compound layer side is 0-6 mm, the height of the V-shaped groove on the B compound layer side is 0-6 mm, and the angles of the V-shaped grooves are all 70 +/-50 degrees.
3. The welding method of the double-sided clad stainless steel composite plate according to claim 1, wherein: in the step (1), the thickness of the base layer is 2-30 mm, and the thickness ranges of the A composite layer and the B composite layer are both 0.2-8 mm.
4. The welding method of the double-sided clad stainless steel composite plate according to claim 1, wherein: in the step (2), the welding of the base layer and the A composite layer adopts laser-electric arc composite welding, wherein the electric arc welding needs wire filling.
5. The welding method of the double-sided clad stainless steel composite plate according to claim 1, wherein: in the step (3), the welding of the B compound layer adopts submerged arc welding, gas shielded welding or laser cladding, the welding wire adopts corrosion-resistant alloy welding wire, and the height of the welding line is not lower than that of the base metal.
6. The welding method of the double-sided clad stainless steel composite plate according to claim 1, wherein: and (4) before the welding of the composite layer B in the step (3), polishing the groove of the composite layer B from the outer wall by using an angle grinder, and removing surface oxides until the metallic luster is exposed.
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| CN117051395A (en) * | 2023-10-11 | 2023-11-14 | 沈阳飞机工业（集团）有限公司 | Laser cladding forming control method for titanium alloy force bearing frame member |
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| CN110773892A (en) * | 2019-11-05 | 2020-02-11 | 中国石油天然气集团有限公司 | Welding method of three-layer corrosion-resistant alloy composite plate |
| CN111168242A (en) * | 2020-01-19 | 2020-05-19 | 新疆大学 | Laser arc series welding method for connecting TA2/T2 explosion welding composite plates |
| CN111230306A (en) * | 2020-02-17 | 2020-06-05 | 西安交通大学 | A method for synchronous regulation of F/A ratio of bimetallic penetration laser welding cladding structure |
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| CN117051395A (en) * | 2023-10-11 | 2023-11-14 | 沈阳飞机工业（集团）有限公司 | Laser cladding forming control method for titanium alloy force bearing frame member |
| CN117051395B (en) * | 2023-10-11 | 2023-12-08 | 沈阳飞机工业（集团）有限公司 | Laser cladding forming control method for titanium alloy force bearing frame member |
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Application publication date: 20210112 |