CN101537570A - Explosion-welding/rolling copper-aluminum compound conductive bar - Google Patents
Explosion-welding/rolling copper-aluminum compound conductive bar Download PDFInfo
- Publication number
- CN101537570A CN101537570A CN200910026379A CN200910026379A CN101537570A CN 101537570 A CN101537570 A CN 101537570A CN 200910026379 A CN200910026379 A CN 200910026379A CN 200910026379 A CN200910026379 A CN 200910026379A CN 101537570 A CN101537570 A CN 101537570A
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- CN
- China
- Prior art keywords
- explosive
- copper
- welding
- conductive bar
- aluminum compound
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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- 238000003466 welding Methods 0.000 title claims abstract description 26
- 238000005096 rolling process Methods 0.000 title claims abstract description 22
- -1 copper-aluminum compound Chemical class 0.000 title claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 33
- 229910052802 copper Inorganic materials 0.000 claims abstract description 33
- 238000005516 engineering process Methods 0.000 claims abstract description 14
- 238000004880 explosion Methods 0.000 claims abstract description 5
- 239000002360 explosive Substances 0.000 claims description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 30
- 229910052782 aluminium Inorganic materials 0.000 claims description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 22
- 239000004411 aluminium Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 238000009472 formulation Methods 0.000 abstract description 2
- 238000004080 punching Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 10
- 239000004020 conductor Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000005498 polishing Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Metal Rolling (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to an explosion-welding/rolling copper-aluminum compound conductive bar which is produced by adopting a special low-explosion velocity wadding formulation technology, a chemical loading parameter control technology and a special punching forming technology. The explosion-welding/rolling copper-aluminum compound conductive bar can completely replace a pure-copper conductive bar and has high bonding strength, low production cost and simple production process.
Description
Technical field
What the present invention relates to is a kind ofly to utilize energy that explosive charge produces as the energy, makes soldered T
2With the surperficial copper aluminium composite conducting material that forms firm solid phase combination of aluminium bar.Belong to power equipment industry and explosive welding complex art field.
Background technology
Copper-aluminum compound conductive bar not only has the good conductivity of copper, advantage such as thermal conductivity height, contact resistance are low, specious, but also have the lightweight of aluminium, wear-resisting, economic dispatch advantage.
At present, the production and processing method of internal copper aluminium composite conducting material mainly contains: roll-bonding method, extruding-hubbing, gas brazing method etc.
There are two kinds of defectives in the copper aluminium composite conducting material that roll-bonding method is produced in Technology for Heating Processing: the one, and the warm-up movement of copper aluminium atom and diffusion make the body metal become the face combination by a combination, thereby make the bond strength variation, the residual stress when also making composite rolling is eliminated; The 2nd, along with the increase copper aluminium of temperature has all produced crystallization again, and the compound interface thickening, and have hard and crisp intermetallic compound to generate, cause bond strength and bending property etc. sharply to worsen.The copper aluminium composite conducting material that extruding-hubbing is produced is when metal flow is inhomogeneous in extrusion process, and the ectonexine wall unevenness is even along its length to cause extrude tubes easily; Be easy to generate the profile wave, the interface is ring shape even hard formation and fracture phenomena.The copper aluminium composite conducting material that the gas brazing method is produced is because hot input quantity is big, and deflection is difficult to control, thereby interface bond strength is not high, of poor quality, and mechanization degree is low, and working condition is poor.
In sum, producing copper aluminum composite material in enormous quantities in order to last method also has the problems such as the life-span is short must be to be solved.The present invention adds rolling this extraordinary welding method with explosive welding and then can overcome the above problems.
At present, the explosive welding that Shang Weiyou adopts explosive welding to add rolling technique production adds the bibliographical information of rolling copper-aluminum compound conductive bar, and the explosive welding of adopting explosive welding to add rolling technique production adds rolling copper-aluminum compound conductive bar has following key technology to capture.
1, the multiple layer of copper is thinner, and the explosive welding of super thin metal composite adds the optimization and the control of rolling data of explosive filled.
2, copper is non-ferrous metal, and defectives such as ablation, perforation appear in surface easily.
3, because the rarefaction wave effect of explosive adopts vertical powder charge, the control of web density refractory.
Summary of the invention
This patent be earlier aluminium bar and copper pipe are exploded compound after, carrying out a series of quick-fried post processing, with hydraulic press and special pattern compound bar is struck out definite shape and specification more at last.
Technical scheme of the present invention:
Explosive welding adds rolling copper-aluminum compound conductive bar, and its production method comprises: technologies such as quick-fried pre-treatment, explosive welding, punch forming.
One, quick-fried pre-treatment:
1, copper pipe adopts internally circle polishing of specific purpose tool, polishing.Aluminium bar adopts the polishing of cloth wheel, polished OD, makes two to treat that faying face exposes fresh metal level.
2, designed a wooden base, with in the middle of aluminium bar is placed on, copper pipe is enclosed within on the aluminium bar and around leave the same gap, be placed with wood particle in the copper pipe bottom, control the gap of copper pipe and floor sill well, help exhaust.
Two, explosion weld process:
1, the prescription of explosive welding explosive.In order to protect copper pipe, select unconventional low explosive for use not by burning.By test of many times, the explosion velocity of explosive of employing is that 2000～2500m/s is for best.It is main material that the present invention adopts emulsion, and adds materials such as 20% salt, 5% perlite, 7% saw powder.
2, the method for falling the ladder type powder charge of adopting dose from top to bottom progressively to successively decrease evenly distributes explosive, ensures recombination rate.
3, adopt new protective layer technology, multiple tube-surface protective layer is two layers of malthoid, explosive welding add rolling after, blemish has clear improvement.
Three, punch forming:
Copper aluminium composite collector bar with quick-fried post processing finishes adopts special frock clamp, is placed in the special pattern, strikes out specific shape and specification.
Explosive welding adds rolling copper-aluminum compound conductive bar, and its structure comprises: adopt light and the aluminium bar with good conduction, heat conductivility of quality as roller core, with metallurgical and strong the combining of the high-quality conductive material copper pipe that is positioned at its circumferential surface.
The main chemical compositions of the clad copper pipe that uses consists of:
(in the percentage of mass fraction)
| Cu | Bi | S | O | Zn | Fe | Pb |
| 99.9 | 0.001 | 0.005 | 0.06 | 0.005 | 0.005 | 0.005 |
The aluminium bar main chemical compositions consists of (in the percentage of mass fraction):
| Al | Si | Mn | Cu | Fe |
| 99.7 | 0.2 | 0.03 | 0.03 | 0.25 |
Advantage of the present invention:
1, combination between firm copper aluminium atom: in various environment temperatures, reach combination between nonvolatil atom between two kinds of different metal materials.
2, good electrical conductivity: copper aluminium volume ratio is 20% copper clad aluminum wire electrical property, compare with copper bar its exchange current-carrying capacity be fine copper 95% or more than.
3, good mechanical performance: have good tensile strength, flexible and percentage elongation.
4, compound interface bond strength height, the life-span is long, production cost is low, efficient is high, production technology is simple etc.
The specific embodiment
Embodiment 1
The explosive welding that explosive welding adds rolling copper-aluminum compound conductive bar adds rolling.
1, multiple tube material specification of base and quick-fried preceding the preparation.T2 is multiple pipe, and it has extremely strong electric conductivity and heat conductivility, and thickness is 4mm, long 650mm, interior diameter 70mm.Standard shaft adopts aluminium bar, and its diameter is 66mm, long 600mm.Copper pipe adopts internally circle polishing of specific purpose tool, polishing.Aluminium bar adopts the polishing of cloth wheel, polished OD, makes two to treat that faying face exposes fresh metal level.
2, explosive welding adds rolling explosive formulation.It is main material that the present invention adopts emulsion, and adds and add materials such as 20% salt, 5% perlite, 7% saw powder.Its explosion velocity of explosive is about 2000～2500m/s.
3, charge depth and gap determines.The gap is 2mm between copper pipe and the aluminium bar.
4, the safeguard measure of multiple tube-surface: the anti-burning protective layer of multiple tube-surface is two-layer malthoid.
After testing, explosive welding of the present invention adds rolling copper-aluminum compound conductive bar, its composite surface shear strength 〉=80MPa, and the life-span is long, can be processed into specific shape and specification according to producing needs, explosive welding adds the rolling copper-aluminum composite copper bar and has successfully realized saving fine copper metal, has rationally used conductive metallic material, the average copper metal 70% of saving, copper bar weight saving is more than 50%.This product technology makes full use of the high-performance conductive ability of aluminium, high physical stability, the lower contact resistance of material price and copper are compound cheaply is the novel conductor material of one.
Claims (5)
1, explosive welding adds rolling copper-aluminum compound conductive bar, it is characterized in that adopting explosive welding to add rolling, special low explosive formula technique, data of explosive filled control technology, surface protection technology.
2, explosive welding according to claim 1 adds rolling technique, is copper to be managed again with aluminium bar to be combined with each other by explosive welding earlier, at the copper-aluminum compound conductive bar of making special shape by the grinding tool of special requirement.
3, special low explosive formula technique according to claim 1 is characterized in that using emulsion to be main material, and adds materials such as 20%～25% salt, 5% perlite, 7% saw powder, and its explosion velocity of explosive is about 2000～2500m/s.
4, data of explosive filled control technology according to claim 1, the method for falling the ladder type powder charge that it is characterized in that adopting dose from top to bottom progressively to successively decrease evenly distributes explosive.
5, exclusive surface protection technology according to claim 1 is characterized in that the anti-burning protective layer of multiple tube-surface is two-layer malthoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100263792A CN101537570B (en) | 2009-04-22 | 2009-04-22 | Explosion-welding/rolling copper-aluminum compound conductive bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100263792A CN101537570B (en) | 2009-04-22 | 2009-04-22 | Explosion-welding/rolling copper-aluminum compound conductive bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101537570A true CN101537570A (en) | 2009-09-23 |
| CN101537570B CN101537570B (en) | 2011-10-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100263792A Active CN101537570B (en) | 2009-04-22 | 2009-04-22 | Explosion-welding/rolling copper-aluminum compound conductive bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101537570B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057200A (en) * | 2014-06-30 | 2014-09-24 | 湖北金兰特种金属材料有限公司 | Copper-aluminum explosion composite plate adapter |
| CN107200670A (en) * | 2017-06-21 | 2017-09-26 | 中国科学技术大学 | A kind of low blasting speed emulsion and its application |
| CN113084325A (en) * | 2021-04-19 | 2021-07-09 | 陕西红旗鸿远金属复合材料有限公司 | Explosive welding method for copper-aluminum transition wire clamp |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729010A (en) * | 2012-07-03 | 2012-10-17 | 南京三邦金属复合材料有限公司 | Method for preparing high-performance full-packaged copper and aluminum composite row |
-
2009
- 2009-04-22 CN CN2009100263792A patent/CN101537570B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057200A (en) * | 2014-06-30 | 2014-09-24 | 湖北金兰特种金属材料有限公司 | Copper-aluminum explosion composite plate adapter |
| CN107200670A (en) * | 2017-06-21 | 2017-09-26 | 中国科学技术大学 | A kind of low blasting speed emulsion and its application |
| CN107200670B (en) * | 2017-06-21 | 2019-04-05 | 中国科学技术大学 | A kind of low blasting speed emulsion and its application |
| CN113084325A (en) * | 2021-04-19 | 2021-07-09 | 陕西红旗鸿远金属复合材料有限公司 | Explosive welding method for copper-aluminum transition wire clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101537570B (en) | 2011-10-05 |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090923 Assignee: Dong Chunlin | Nashun Sang | Lu Lin Assignor: Nanjing Runbang Metal Clad Material Co., Ltd. Contract record no.: 2013320000756 Denomination of invention: Explosive Welding/Rolling Copper-Aluminum Composite Conductive Bar Granted publication date: 20111005 License type: Common License Record date: 20131107 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EM01 | Change of recordation of patent licensing contract |
Change date: 20131218 Contract record no.: 2013320000756 The licensee after: Dong Chunlin The licensee after: Na Shunsang The licensee after: Lv Lin The licensee after: Li Weizhou The licensee after: Mo Xiaodong The licensee before: Dong Chunlin The licensee before: Na Shunsang The licensee before: Lv Lin |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211803, 35 Industrial Park, Pukou District, Jiangsu Province, No. three South Road, Nanjing Patentee after: Jiangsu run state new material Group Co., Ltd. Address before: 211803, 35 Industrial Park, Pukou District, Jiangsu Province, No. three South Road, Nanjing Patentee before: Nanjing Runbang Metal Clad Material Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Explosive Welding/Rolling Copper-Aluminum Composite Conductive Bar Effective date of registration: 20181126 Granted publication date: 20111005 Pledgee: Bank of China Limited by Share Ltd Nanjing Pukou sub branch Pledgor: Jiangsu run state new material Group Co., Ltd. Registration number: 2018320000329 |
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Date of cancellation: 20190828 Granted publication date: 20111005 Pledgee: Bank of China Limited by Share Ltd Nanjing Pukou sub branch Pledgor: Jiangsu run state new material Group Co., Ltd. Registration number: 2018320000329 |
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Denomination of invention: Explosion-welding/rolling copper-aluminum compound conductive bar Effective date of registration: 20190902 Granted publication date: 20111005 Pledgee: Bank of China Limited Nanjing Jiangbei New Area Branch Pledgor: Jiangsu run state new material Group Co., Ltd. Registration number: Y2019320000098 |
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Date of cancellation: 20210930 Granted publication date: 20111005 Pledgee: Bank of China Limited Nanjing Jiangbei New Area Branch Pledgor: JIANGSU RUNBANG NEW MATERIAL GROUP Co.,Ltd. Registration number: Y2019320000098 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Explosive welding / rolling copper aluminum composite conductive bar Effective date of registration: 20211018 Granted publication date: 20111005 Pledgee: Bank of China Limited Nanjing Jiangbei New Area Branch Pledgor: JIANGSU RUNBANG NEW MATERIAL GROUP Co.,Ltd. Registration number: Y2021980010831 |