CN104827164B - Large-area large-thickness TU2 copper/steel explosion composite material and defect repairing method - Google Patents
Large-area large-thickness TU2 copper/steel explosion composite material and defect repairing method Download PDFInfo
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- CN104827164B CN104827164B CN201410047261.9A CN201410047261A CN104827164B CN 104827164 B CN104827164 B CN 104827164B CN 201410047261 A CN201410047261 A CN 201410047261A CN 104827164 B CN104827164 B CN 104827164B
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- 239000010949 copper Substances 0.000 title claims abstract description 35
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 230000007547 defect Effects 0.000 title claims abstract description 8
- 238000004880 explosion Methods 0.000 title abstract description 3
- 238000004321 preservation Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims abstract description 12
- 238000003754 machining Methods 0.000 claims abstract description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 62
- 229920000742 Cotton Polymers 0.000 claims description 14
- 230000008439 repair process Effects 0.000 claims description 7
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000002360 explosive Substances 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000011324 bead Substances 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 239000005749 Copper compound Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a method for repairing defects in a production process of a large-area large-thickness TU2 copper/steel explosion composite material. The method comprises the steps of groove designing and machining, transition layer bead weld, integral heating, gradient heat preservation, coating bead weld and ultrasonic treatment. The method has the advantages that through the integral heating technology, the gradient heat preservation, and the ultrasonic impact treatment, the repairing difficulty of large-plate-width large-thickness coating copper steel composite plates is solved; and the technology and the operation flow are simple, and the method has higher economic practicality.
Description
Technical field
Patent of the present invention is related to a kind of solution large area big thickness coating (copper plate) and repairing that substrate (steel plate) is not fitted
Compound recipe method, in particular for coating 5-12mm copper-steel composite plate.Belong to copper class technical field of composite materials.
Background technology
At present, the copper-steel composite plate being produced with the method for explosive welding, will produce local when explosion technology is inappropriate
Do not fit, if not repaired, Extensive site of not fitting during the use in later stage, the scrapping of final acceleration equipment.Domestic
Some producers copper coating be less than 4mm and plate little in the case of using flame baking preheating by the way of repaired, but dry
Roasting limited area, within the short time, temperature has just been lost it is impossible to continuous weld, and also needs flame baking again to carry out
Welding is although stickiness reparation can be completed, but copper easily aoxidizes and absorbs gas etc. in baking preheating and produces low melting point
Eutectic, produces fire check in the presence of thermal stress and has a strong impact on welding quality.If plate width is big and thickness is in 5-12mm, by
Too fast in radiating, baking rifle leaves temperature during plate face and declines immediately, and the molten drop of copper cannot be merged with mother metal, and the method is just unworkable
?；If according to the method for patent 200610040174.6, implement the quick-fried approach of secondary benefit, can complete to repair, but cost increases
Greatly.
Content of the invention
Patent of the present invention provides a kind of restorative procedure, not joint place seam not only can be reduced rehabilitation cost, but also
Solve copper the problems such as aoxidize at high temperature and absorb gas, it is to avoid fire check is it is ensured that internal and surface quality.
The technical solution of the present invention: the reparation side of large area big thickness tu2 copper/steel explosive composite material and defect
Method, its technique includes groove Design and Machining, transition zone built-up welding, overall heating technique, gradient uniformity are incubated, coating built-up welding and ultrasonic
Ripple is processed.
The coating trade mark of described copper-steel composite material is tu2.
Described groove design and processing are according to the distinctive architectural feature of composite plate, reduce the volume of surfacing of Cu as far as possible,
So the layers of copper compound to defect area polish 120 ° ± 1 ° of groove, in order to avoid fusion area liquid copper in steel side is to steel
Permeate between grain and produce fire check, carbon steel layer is removed downwards by 2-2.5mm and processes smooth it is therefore an objective to apply at compound position
One layer of transition zone of weldering.
Described transition zone built-up welding is to adoptErni-1 or ernicu-7 welding wire, electric current adopts 90-
130a, in steel side built-up welding two-layer, and processes concordant with copper steel faying face.Purpose is to prevent copper and carbon steel directly contact.Because copper
Steel unlimited solid solution in the state of melting, limited solid solution in the solid state, and transition zone mainly contains nickel element, nickel can unlimited solid solution steel
And copper, so using the welding wire prime coat of erni-1 or ernicu-7, copper steel directly contact can be avoided.
Described entirety heating technique is that copper-steel composite plate is put in annealing furnace, according to different thicknesss of slab, overall heating
To 350-600 DEG C, it is incubated 30min.Purpose is pre- heated work pieces, when being easy to surfacing of Cu, melts mother metal, can form molten bath.
Described gradient uniformity insulation refers to that rapid taking-up of copper-steel composite plate terminating preheating is placed on thickness laid in advance
In the heat-preservation cotton of 30mm, cover rapidly one layer of heat preservation cotton in Copper steel cladding plate surface, at the seat needing built-up welding, heat-preservation cotton is gone
Remove.The method can be by the copper-steel composite plate holding time after preheating it is ensured that welding temperature meets welding requirements.
Described copper coating built-up welding and ultrasonic Treatment refer to useErni-1 or ernicu-7 welding wire
Weld one week between copper and transition zone, use instead afterwardsErcu welding wire one layer of prime coat last layer built-up welding.Every built-up welding
One layer of copper will be impacted once with spherical ultrasonic impact rifle, and scale removal of then polishing again carries out the built-up welding of next layer,
Built-up welding reinforcement stops built-up welding after exceeding plate face 2-3mm, is impacted 2 to 3 times with spherical ultrasonic impact pipette tips in built-up welding layers of copper, it
Afterwards repair welding area heat-preservation cotton is covered with so as to naturally cool to room temperature.The method adopts argon arc-welding built-up welding and the side of postwelding polishing
Formula decreases the quantity that copper forms low melting point eutectic, and the method for the employing ultrasonic impact of discontinuous reduces residual thermal stress, breaks
Broken coarse grain, it is to avoid the quality problems such as the coarse grains of built-up welding region copper, plasticity decline, fire check.
Advantages of the present invention: solve big plate by way of overall heating technique, gradient insulation, ultrasonic impact are processed
Width, big thickness coating blast copper-steel composite plate repairs difficult point；Technique and operating process are simple, have very strong economic and practical.
Brief description
With reference to the accompanying drawings and examples patent of the present invention is further illustrated.
Fig. 1 is the reparation groove of this technology invention.
Fig. 2 be this technology invent first three step welding block diagram release.
In Fig. 1,1 is copper coating, and 2 is carbon steel layer；In Fig. 2,1 is the transition zone of first built-up welding, and 2 is the transition zone after preheating, and 3 are
The packed layer of copper.
Specific embodiment
Embodiment 1
Material tu2+q235b, size (6+34) × 900 × 1800mm；Size of not fitting 70 × 250mm, position is edge
Do not fit.
First, groove Design and Machining, using abrasive machine, along the line drawn in advance, is cut to carbon steel layer downwards, will non-joint place
Copper coin remove, with 60# emery wheel, q235b plate is processed and removes 2-2.5mm, two of which right angle beaten using stainless steel bistrique
Three sides of coating are polished 120 ° of groove by mill.
2nd, transition zone bead-welding technology, using the mode of argon arc welding, using φ 2.4erni-1 welding wire, ground floor 120a electricity
Stream, second layer 110a electric current carries out welding, and after the completion of built-up welding, processing is concordant with faying face.
3rd, overall heating technique, using the programming rate of 100 DEG C/h, copper-steel composite plate is heated to 480 DEG C, and is incubated
30min.
4th, gradient heat preservation method, preparing two block sizes is 30 × 920 × 1820mm and 30 × 940 × 1840mm heat-preservation cotton,
Will be laid for the heat-preservation cotton of 30 × 920 × 1820mm below, 30 × 940 × 1840mm is used for capping, will be used for the insulation of capping
Cotton reserves the area of 80 × 260mm in the position needing repair welding.
5th, bead-welding technology, will be clean for the processing of prime coat surface scale, using φ 2.4erni-1 welding wire, using 200a electricity
Stream is in three edge boxing one week of groove；Then φ 3.0ercu welding wire is used to adopt 280-300a electric current heap in layer
Weldering, period adopt ultrasonic impact rifle every weldering one layer after, impact once.
Embodiment 2
Material tu2+q235b, size (10+20) × 2100 × 6000mm；Do not fit into the circle of φ 50mm, during position is
Between position do not fit.
First, groove Design and Machining, using abrasive machine, along the line drawn in advance, is cut to carbon steel layer downwards, will non-joint place
Copper coin remove, with 60# emery wheel, q235b plate is processed and removes 2-2.5mm, adopt stainless steel mill wherein at circular faying face
Head polishing, polish 120 ° of groove to the circumferential location of coating.
2nd, transition zone bead-welding technology, using the mode of argon arc welding, using φ 2.4ernicu-7 welding wire, ground floor 130a electricity
Stream, second layer 120a electric current carries out welding, and after the completion of built-up welding, polishing is concordant with faying face.
3rd, overall heating technique, using the programming rate of 100 DEG C/h, copper-steel composite plate is heated to 600 DEG C, and is incubated
20min.
4th, gradient heat preservation method, preparing two block sizes is 30 × 2120 × 6020mm and 30 × 2140 × 6040mm insulation
Cotton, will be laid for the heat-preservation cotton of 30 × 2120 × 6020mm below, and 30 × 2140 × 6040mm is used for capping, will be used for capping
Heat-preservation cotton reserves the circular hole of φ 60mm in the position needing repair welding.
5th, bead-welding technology, will be clean for the processing of prime coat surface scale, using φ 2.4ernicu-7 welding wire, adopts
200a electric current, in three edge boxing one week of groove, adopts the built-up welding in layer of 260-300a electric current afterwards, and period adopts
With ultrasonic impact rifle every weldering one layer after, impact once.
No it is layered using ultrasonic examination after reparation；Using penetrant inspection, surface flawless；Defect repair rate 100%.
Claims (1)
1. the restorative procedure of large area big thickness tu2 copper/steel explosive composite material defect is it is characterised in that include groove design
Processing, the uniform built-up welding of transition zone, overall heating technique, gradient insulation, coating built-up welding and ultrasonic Treatment；
The layers of copper that described groove Design and Machining is compound to defect area processes 120 ° ± 1 ° of groove, and carbon steel layer is existed
Compound position removes downwards 2-2.5mm and processes smooth；
The uniform built-up welding of described transition zone is to selectErni-1 or ernicu-7 welding wire, electric current adopts 90-
130a, concordant with copper steel faying face after steel side built-up welding two-layer, welding processing；
Described entirety heating technique is that copper-steel composite plate is put in heating furnace, according to different thicknesss of slab, is integrally heated to
350-600 DEG C, it is incubated 30min；
Described gradient insulation is that rapid for the copper-steel composite plate of heating taking-up is placed in the heat-preservation cotton of thick 30mm laid in advance,
Cover rapidly one layer of heat preservation cotton in Copper steel cladding plate surface, at the seat needing built-up welding, heat-preservation cotton is removed；
Described coating built-up welding and ultrasonic Treatment are to useErni-1 or ernicu-7 welding wire copper with beat
Weld one week between bottom, use instead afterwardsErcu welding wire one layer of prime coat last layer built-up welding；Every one layer of copper of built-up welding is just
Impacted once with spherical ultrasonic impact rifle, scale removal of then polishing again carries out the built-up welding of next layer, built-up welding reinforcement
Beyond stopping built-up welding after plate face 2-3mm, impacted 2 to 3 times with spherical ultrasonic impact pipette tips in built-up welding layers of copper, afterwards by repair welding
Area's heat-preservation cotton is covered with so as to naturally cool to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410047261.9A CN104827164B (en) | 2014-02-11 | 2014-02-11 | Large-area large-thickness TU2 copper/steel explosion composite material and defect repairing method |
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| CN201410047261.9A CN104827164B (en) | 2014-02-11 | 2014-02-11 | Large-area large-thickness TU2 copper/steel explosion composite material and defect repairing method |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041268A (en) * | 2016-06-28 | 2016-10-26 | 江苏科技大学 | Layered ultrasonic impact treatment method capable of optimizing structure and performance of weld |
| CN106077912B (en) * | 2016-06-30 | 2018-10-23 | 洛阳双瑞金属复合材料有限公司 | A kind of unbonded area's repair method of complex brass clad steel plate |
| CN106270924B (en) * | 2016-09-20 | 2018-05-04 | 上海电气核电设备有限公司 | Prevent the connection method of the partition plate and housing of overlay cladding tear |
| CN106270937B (en) * | 2016-09-20 | 2018-07-06 | 上海电气核电设备有限公司 | A kind of overlay cladding repair method |
| CN108838573B (en) * | 2018-06-27 | 2020-11-13 | 中广核工程有限公司 | Low-alloy steel and stainless steel composite repair welding method and system for nuclear power pressure vessels |
| CN109778180B (en) * | 2019-02-28 | 2020-09-29 | 上海乾岳投资管理有限公司 | Laser cladding method for controlling generation of copper penetration cracks |
| CN113042853A (en) * | 2021-03-03 | 2021-06-29 | 中国船舶重工集团公司第七二五研究所 | Method for repairing non-composite area of pure copper T2-steel composite board |
| 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 |
| CN114147385B (en) * | 2021-11-26 | 2023-03-14 | 西安理工大学 | Welding wire for CMT fusion welding butt joint of copper-steel composite plate and preparation and welding method |
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| JPS56134068A (en) * | 1980-03-25 | 1981-10-20 | Kuroki Kogyosho:Kk | Method for build-up welding of copper alloy on steel |
| JPS60115381A (en) * | 1983-11-25 | 1985-06-21 | Hitachi Ltd | Joining method of different metals |
| CN101372065B (en) * | 2008-09-30 | 2010-11-10 | 太原钢铁(集团)有限公司 | Method for producing copper alloy plate composite steel plate |
| CN101559523A (en) * | 2008-12-08 | 2009-10-21 | 四川惊雷科技股份有限公司 | Explosive welding method of B30 copper-nickel alloy clad steel plate |
| CN102151977A (en) * | 2011-02-14 | 2011-08-17 | 南京润邦金属复合材料有限公司 | Big-board TU1/Q235B explosive welding high-strength conductive composite plate |
| CN102430900B (en) * | 2011-10-30 | 2014-02-26 | 太原钢铁(集团)有限公司 | Manufacturing method of composite steel plate |
| CN102671942B (en) * | 2012-03-05 | 2015-06-10 | 江苏大学 | Preparation method for copper-steel composite |
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Address after: 211803 No. three Lin and Nan Road, Star Industrial Park, Pukou District, Nanjing, Jiangsu Patentee after: Jiangsu run state new material Group Co., Ltd. Address before: 211803 No. three Lin and Nan Road, Star Industrial Park, Pukou District, Nanjing, Jiangsu Patentee before: Nanjing Runbang Metal Clad Material Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Repair method of large area and thickness TU2 copper / steel explosive composite and its defects Effective date of registration: 20210225 Granted publication date: 20170125 Pledgee: Bank of Jiangsu Co., Ltd. Nanjing Jiangbei new area sub branch Pledgor: JIANGSU RUNBANG NEW MATERIAL GROUP Co.,Ltd. Registration number: Y2021980001306 |
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