CN111571045A - Welding method of copper-steel composite plate - Google Patents
Welding method of copper-steel composite plate Download PDFInfo
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- CN111571045A CN111571045A CN202010442161.1A CN202010442161A CN111571045A CN 111571045 A CN111571045 A CN 111571045A CN 202010442161 A CN202010442161 A CN 202010442161A CN 111571045 A CN111571045 A CN 111571045A
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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
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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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/16—Composite materials, e.g. fibre reinforced
- B23K2103/166—Multilayered materials
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- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a welding method of a copper-steel composite plate, which comprises the following steps of (1) forming a V-shaped groove; (2) welding the truncated edges by adopting friction stir welding to form a welding seam of the composite layer and the transition layer; (3) covering the surface of the multilayer welding line by adopting gas shielded welding to form a covering surface welding line; (4) and welding the base layer welding seam by adopting manual arc welding or gas shielded welding to form the base layer welding seam. The invention realizes one-time high-efficiency welding of the base layer and the transition layer of the copper-steel composite plate through reasonable groove design and welding process matching, has excellent welding seam performance and high welding efficiency, and has wide market prospect.
Description
The technical field is as follows:
the invention relates to the technical field of layered structure bimetal welding, in particular to a welding method of a copper-steel composite plate.
Background art:
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 is widely applied to the industrial fields of petrochemical industry, flue gas desulfurization, chemical industry, environmental protection and the like. Copper and copper alloy have excellent corrosion resistance, especially in sea water desalination and offshore oil exploitation, but pure copper is high in cost and insufficient in strength, high-quality and efficient welding of copper-steel composite materials is achieved, and the copper-steel composite material has important significance in development of ocean economy.
The invention content is as follows:
the invention aims to provide a welding method of a copper-steel composite plate, which can realize metallurgical welding of the copper-steel composite plate, has excellent welding seam performance and high welding efficiency and is easy to realize automatic production.
In order to achieve the purpose, the invention adopts the technical scheme that: a welding method of a copper-steel composite plate comprises the following steps:
(1) the copper-steel composite plate comprises a base layer and a composite layer, wherein the base layer is a carbon steel layer, the composite layer is pure copper or copper alloy, a V-shaped groove is formed in the side of the base layer, the thickness of the base layer is 3-40mm, the thickness of the composite layer is 0.2-10mm, the height of the V-shaped groove of the base layer is 1-10mm smaller than that of the base layer, the width of the bottom of the V-shaped groove is 0-15mm, and the angle of the groove is 60-80 degrees;
(2) butt-jointing the composite boards, and welding the truncated edges by adopting friction stir welding to form a welding seam of the composite layer and the transition layer;
(3) covering the surface of the multilayer welding line by adopting gas shielded welding to form a covering surface welding line;
(4) and welding the V-shaped groove of the base layer by adopting manual arc welding or gas shielded welding to form a base layer welding seam.
Further, the friction stir welding fusion depth is 0-10mm less than the thickness of the truncated edge; the welding seam of the cover surface adopts single-layer or multi-layer multi-pass welding, and the welding seam of the cover surface is 0-3mm higher than the base material; the height of the base layer welding seam is more than or equal to the thickness of the base layer.
The invention has the beneficial effects that:
(1) the V-shaped groove is adopted, the groove is simple in form and easy to process; the friction stir welding is adopted to realize the one-time efficient welding of the composite layer and the transition layer, so that the welding efficiency of the composite material is greatly improved and the consumption of welding materials is reduced on the basis of realizing the good isolation of the composite layer and the base layer; the covering surface of the multiple layers ensures the thickness of copper and copper alloy, thereby meeting the use requirements of the copper and copper alloy.
(2) The invention realizes the high-efficiency welding of the copper-steel composite plate by reasonable groove design and welding process matching, has excellent welding seam performance and low welding cost, and has wide market prospect.
Description of the drawings:
FIG. 1 is a schematic diagram of a groove of a copper-steel composite plate according to the present invention.
FIG. 2 is a schematic view of a welding seam of the copper-steel composite plate of the present invention.
Description of reference numerals: 1-base layer, 2-multiple layer, 3-multiple layer and transition layer welding seam, 4-cover surface welding seam and 5-base layer welding seam.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to the accompanying drawings:
the Cu/X65 bimetal composite plates with the thickness of (2+10) mm are taken as an example for welding, and the welding test plate size is 180X 600 mm.
(1) As shown in fig. 1, a double V-shaped groove is formed on the welding test plate, the carbon steel material of the base layer 1 is X65, the thickness is 10mm, the copper or copper alloy layer material of the compound layer 2 is red copper, and the thickness is 2 mm; the V-shaped groove on one side of the base layer is 2mm lower than the thickness of the base layer, 5mm in bottom width and 75 degrees in groove angle.
(2) Will weld the test panel butt joint, adopt friction stir welding to weld from basic unit one side to the truncated edge, form multiple layer and transition layer welding seam 3, concrete welding process: and (3) rotating the friction welding stirring head at a high speed, inserting the stirring pin into the truncated edge of 4mm, moving the stirring pin forwards at the speed of 0.5m/min, and ensuring that no wire is filled in the friction welding stirring process and the protective gas is pure Ar.
(3) Removing oxides and impurities on the surface of the red copper side friction stir welding seam by using a steel wire brush, and overlaying the capping weld joint 4 by adopting tungsten electrode gas shielded welding to ensure that the capping weld joint is higher than a base material; the surfacing welding wire is pure copper (phi 1.2mm), the protective gas is pure Ar, and the welding parameters of the cover surface welding line are shown in Table 1.
(4) Cleaning a V-shaped groove at the X65 side by using a steel wire brush, welding by adopting manual arc welding to form a basic layer welding seam 5, adopting multilayer multi-pass welding, cleaning welding seam slag crust by using the steel wire brush after each pass of welding is finished, then entering the next pass of welding, and ensuring that the height of the welding seam is higher than that of a base metal. The welding rod is marked as J507 (phi 4.0mm), and the welding parameters of the base layer welding seam are shown in Table 2.
TABLE 1 weld parameters for cap welds
| Welding current (A) | Arc voltage (V) | Welding speed (mm/min) | Wire feed speed (mm/min) |
| 180 | 14 | 60 | 1200 |
TABLE 2 basic weld seam welding parameters
| Polarity of power supply | Arc voltage (V) | Welding speed (m/min) | Current (A) |
| Direct current reverse connection | 20-24 | 0.09-0.11 | 90-110 |
Claims (2)
1. A welding method of a copper-steel composite plate is characterized by comprising the following steps: the welding method comprises the following steps:
(1) the copper-steel composite plate comprises a base layer and a composite layer, wherein the base layer is a carbon steel layer, the composite layer is pure copper or copper alloy, a V-shaped groove is formed in the side of the base layer, the thickness of the base layer is 3-40mm, the thickness of the composite layer is 0.2-10mm, the height of the V-shaped groove of the base layer is 1-10mm smaller than that of the base layer, the width of the bottom of the V-shaped groove is 0-15mm, and the angle of the groove is 60-80 degrees;
(2) butt-jointing the composite boards, and welding the truncated edges by adopting friction stir welding to form a welding seam of the composite layer and the transition layer;
(3) covering the surface of the multilayer welding line by adopting gas shielded welding to form a covering surface welding line;
(4) and welding the V-shaped groove of the base layer by adopting manual arc welding or gas shielded welding to form a base layer welding seam.
2. The welding method of copper-steel composite plates according to claim 1, characterized in that: the friction stir welding penetration is 0-10mm less than the thickness of the truncated edge; the welding seam of the cover surface adopts single-layer or multi-layer multi-pass welding, and the welding seam of the cover surface is 0-3mm higher than the base material; the height of the base layer welding seam is more than or equal to the thickness of the base layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442161.1A CN111571045A (en) | 2020-05-22 | 2020-05-22 | Welding method of copper-steel composite plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442161.1A CN111571045A (en) | 2020-05-22 | 2020-05-22 | Welding method of copper-steel composite plate |
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| Publication Number | Publication Date |
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| CN111571045A true CN111571045A (en) | 2020-08-25 |
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| CN202010442161.1A Pending CN111571045A (en) | 2020-05-22 | 2020-05-22 | Welding method of copper-steel composite plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305503A (en) * | 2021-05-31 | 2021-08-27 | 中国船舶重工集团公司第七二五研究所 | Method for repairing uncombined area of cupronickel BFe 10-1-1-steel composite board |
| CN114888410A (en) * | 2022-05-27 | 2022-08-12 | 中建安装集团有限公司 | Welding process for reverse welding of duplex stainless steel composite board |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284784A (en) * | 2011-05-26 | 2011-12-21 | 南昌航空大学 | Preparation method of copper-steel composite plate |
| CN102699484A (en) * | 2012-04-28 | 2012-10-03 | 洛阳双瑞金属复合材料有限公司 | Method for welding titanium composites for titanium-steel composite plates |
| KR20130073233A (en) * | 2011-12-23 | 2013-07-03 | 재단법인 포항산업과학연구원 | Hybrid welding method of thick steel plate |
| CN103878484A (en) * | 2014-03-25 | 2014-06-25 | 西安交通大学 | Efficient butt-joint laser welding method for laminated duplex-metal composite material |
| CN104607796A (en) * | 2015-02-12 | 2015-05-13 | 南京理工大学 | Friction-stir welding method allowing transitional layer between butt faces of metal composite plates to be under control |
| CN104625394A (en) * | 2015-02-12 | 2015-05-20 | 江苏烁石焊接科技有限公司 | Single-shoulder stirring head used for welding metal clad plates |
-
2020
- 2020-05-22 CN CN202010442161.1A patent/CN111571045A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284784A (en) * | 2011-05-26 | 2011-12-21 | 南昌航空大学 | Preparation method of copper-steel composite plate |
| KR20130073233A (en) * | 2011-12-23 | 2013-07-03 | 재단법인 포항산업과학연구원 | Hybrid welding method of thick steel plate |
| CN102699484A (en) * | 2012-04-28 | 2012-10-03 | 洛阳双瑞金属复合材料有限公司 | Method for welding titanium composites for titanium-steel composite plates |
| CN103878484A (en) * | 2014-03-25 | 2014-06-25 | 西安交通大学 | Efficient butt-joint laser welding method for laminated duplex-metal composite material |
| CN104607796A (en) * | 2015-02-12 | 2015-05-13 | 南京理工大学 | Friction-stir welding method allowing transitional layer between butt faces of metal composite plates to be under control |
| CN104625394A (en) * | 2015-02-12 | 2015-05-20 | 江苏烁石焊接科技有限公司 | Single-shoulder stirring head used for welding metal clad plates |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305503A (en) * | 2021-05-31 | 2021-08-27 | 中国船舶重工集团公司第七二五研究所 | Method for repairing uncombined area of cupronickel BFe 10-1-1-steel composite board |
| CN114888410A (en) * | 2022-05-27 | 2022-08-12 | 中建安装集团有限公司 | Welding process for reverse welding of duplex stainless steel composite board |
| CN114888410B (en) * | 2022-05-27 | 2023-12-01 | 中建安装集团有限公司 | Welding process for reverse welding of duplex stainless steel composite plate |
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Application publication date: 20200825 |