CN1513637A - Production method of fully-coated copper core composite rod - Google Patents
Production method of fully-coated copper core composite rod Download PDFInfo
- Publication number
- CN1513637A CN1513637A CNA031531407A CN03153140A CN1513637A CN 1513637 A CN1513637 A CN 1513637A CN A031531407 A CNA031531407 A CN A031531407A CN 03153140 A CN03153140 A CN 03153140A CN 1513637 A CN1513637 A CN 1513637A
- Authority
- CN
- China
- Prior art keywords
- fine copper
- clad metal
- compound
- rod
- compound bar
- 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
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000002131 composite material Substances 0.000 title abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000004880 explosion Methods 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims description 43
- 229910052802 copper Inorganic materials 0.000 claims description 41
- 239000010949 copper Substances 0.000 claims description 41
- 239000002360 explosive Substances 0.000 claims description 17
- -1 copper core compound Chemical class 0.000 claims description 7
- 230000037452 priming Effects 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000005253 cladding Methods 0.000 abstract 1
- 238000005238 degreasing Methods 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 15
- 239000010936 titanium Substances 0.000 description 15
- 229910052719 titanium Inorganic materials 0.000 description 15
- 229910001220 stainless steel Inorganic materials 0.000 description 14
- 239000010935 stainless steel Substances 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000002585 base Substances 0.000 description 4
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- RQTDPDUUIOHBMB-UHFFFAOYSA-N antimony(3+) azane Chemical compound N.[Sb+3] RQTDPDUUIOHBMB-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- POCJOGNVFHPZNS-ZJUUUORDSA-N (6S,7R)-2-azaspiro[5.5]undecan-7-ol Chemical compound O[C@@H]1CCCC[C@]11CNCCC1 POCJOGNVFHPZNS-ZJUUUORDSA-N 0.000 description 1
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- BSPUVYFGURDFHE-UHFFFAOYSA-N Nitramine Natural products CC1C(O)CCC2CCCNC12 BSPUVYFGURDFHE-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- POCJOGNVFHPZNS-UHFFFAOYSA-N isonitramine Natural products OC1CCCCC11CNCCC1 POCJOGNVFHPZNS-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
A method for producing a fully-clad copper core composite rod comprises the following steps: the method comprises the steps of degreasing, cleaning, refreshing, straightening, installing and assembling the surface of a workpiece to be processed, explosion cladding, pass rolling and surface finishing treatment. The invention fundamentally solves the problems of low bonding strength and large interface resistance between two metals of the copper core composite rod, thereby solving the problems of uneven current distribution and large power consumption of the composite rod and prolonging the service life of equipment. The composite metal rod produced by the invention has stable performance, the bonding strength between two metals reaches 150 MPa-280 MPa, and the single branch bonding rate is more than or equal to 95 percent, thus being suitable for electrode conducting rods of various electrolytic bath devices in the electrochemical industry.
Description
Technical field
The present invention relates to a kind of production method of full coating copper core compound bar.
Background technology
Electrolytic cell is the widely used system alkali of an electrochemical industry equipment, and it mainly is configured to anode electrolysis chamber and catholyte chamber, and the even problem of its electrodes conduct rod CURRENT DISTRIBUTION is that modern system alkali industry design of electrolysis cells at first needs the problem that solves.Most of cathode collector bars are to adopt elemental metals nickel electrode or copper electrode.Though use elemental metals nickel electrode decay resistance to meet the demands, its electrical property is very unstable, electric energy loss is big, and current efficiency is low, and the manufacturing cost costliness; Though use elemental copper electrode electrical property good, but its poor corrosion resistance, cause electrode life short, consumption of electrode is big, the equipment replacement cycle is short, also increased simultaneously labour intensity, do not satisfy the growing needs of electrochemical industry, for addressing the above problem, so far, the existing stainless steel that adopts jacket-pressing method to produce coats copper core bimetallic negative electrode compound bar, it is poor that extruding back two intermetallic bond qualities often appear in the product that the method is produced, in addition two intermetallics not in conjunction with and cause local cracking, stainless steel outer packed bed thickness is inhomogeneous, and product surface quality be difficult to control, influence its electrical property and decay resistance.The anode conducting compound bar is with the bimetallic compound bar of copper core outsourcing titanium material, this bimetallic compound bar is normally produced with casting-extruding or other vacuum proliferation-rolling method, it is low two intermetallic bond strengths also often to occur, outsourcing titanium layer thickness ununiformity is even, surface quality is difficult to control, welding brings difficulty to equipment making, even can not weld.
Summary of the invention
The objective of the invention is at two intermetallic bond strengths of above-mentioned produced in conventional processes compound bar existence low, the surrounding layer uneven thickness, the unmanageable problem of surface quality, propose the product that a kind of compound bar two intermetallics have firm combination interface and complete metallurgical binding state, satisfy the production method that decay resistance and electric conductivity are better than the full coating copper core compound bar of produced in conventional processes simultaneously.
For achieving the above object, the present invention by the following technical solutions.
A kind of production method of full coating copper core compound bar is characterized in that this method comprises:
(1) inner surface to the clad metal pipe carries out the oil removing cleaning, cleaning refreshes;
(2) the fine copper rod is carried out alignment, and refresh process is carried out on its surface;
(3) follow these steps to install assembly:
A. treated clad metal pipe and fine copper rod are installed on the base of priming device, make the blast gap that has 0.5mm-25mm between clad metal inside pipe wall and the fine copper rod;
B. at the stifled top end in the top of clad metal pipe and fine copper rod;
C., circular cartridge bag is installed on base, clad metal pipe and fine copper rod and top are placed in the circular cartridge bag;
D. be distributed into explosive equably in circular cartridge bag, and insert electric cap, it is the thick 5mm-80mm of explosive radially;
(4) ignite electric cap then, moment is realized clad metal pipe and fine copper two kinds of compound connections of Metal Explosion of rod;
(5) then the compound bar of the compound connection of exploding is pursued the rolling or machined of box pass that passage reduces by a series of cross-sectional areas in the scope of 600 ℃-1000 ℃ of temperature, the acquisition section is the compound bar of flat, circle, rectangle and many specifications;
(6) finishing being carried out on the compound bar surface handles.
Owing to adopt such scheme, the present invention compared with prior art, production process is simple and direct, the production efficiency height, compound bar two intermetallics of being produced have firm combination interface and complete metallurgical binding state, bond strength height, simultaneously can satisfy decay resistance and electric conductivity, serviceability is stable, significantly reduces manufacturing cost, significantly improves the service life of equipment.Carry out the painted detection qualification rate of PT through 50 of extraction stainless steel copper-clad core compound bar and reach 99%, the UT ultrasonic examination is in conjunction with rate 〉=98%, and interface resistance R is 10
-7.cm
-2The order of magnitude.
Description of drawings
Fig. 1 is the structural representation that titanium/copper bi-metal coats compound bar entirely.
Fig. 2 is the structural representation that the stainless steel/copper bimetallic coats compound bar entirely.
Fig. 3 is clad metal pipe/copper bi-metal explosive welding assembling schematic diagram.
Fig. 4 is a compound bar fabrication process flow schematic diagram of the present invention.
Fig. 5 is that the rolling stainless steel/copper bimetallic of the present invention coats composition metal rod employing box pass system schematic entirely.
The specific embodiment
To clad metal pipe 6, its inner surface is carried out oil removing clean, clean and refresh; Fine copper rod 4 is carried out alignment and surperficial refresh process; Treated clad metal pipe and fine copper rod are fitted on the base 8 of priming device by Fig. 3 installation, make the blast gap 5 that has 0.5mm-25mm between clad metal inside pipe wall and the fine copper rod; At the stifled top end 3 in the top of clad metal pipe and fine copper rod; Circular cartridge bag 7 is installed on base, clad metal pipe and fine copper rod and top are placed in the circular cartridge bag; Be distributed into explosive 2 equably in circular cartridge bag, and insert electric cap 1, it is the thick 5mm-80mm of explosive radially; Ignite electric cap then, moment is realized clad metal pipe and fine copper two kinds of compound connections of Metal Explosion of rod; The then rolling or machined of box pass that the compound connection compound bar of exploding is reduced by a series of cross-sectional area tunnels in the scope of 600 ℃-1000 ℃ of temperature, the acquisition section is the compound bar of flat, circle, rectangle and plurality of specifications; At last the finishing processing is carried out on the compound bar surface and made finished product.Also can to the compound bar after the compound connection of exploding, directly it be carried out surface finish and make finished product according to user's requirement.Above-mentioned base is to place on the level ground 9.
With the titanium pipe is the clad metal pipe, wall thickness 3mm, and oil removing is carried out on its surface cleaned, cleaning refreshes; Select the fine copper rod of diameter of phi 40mm, to its alignment and surperficial refresh process; By Fig. 3 assembly is installed then: treated coated titanium pipe and fine copper rod are installed on the base of priming device, make to have 2mm blast gap between coated titanium inside pipe wall and the fine copper rod; In stifled top, the top of coated titanium pipe and fine copper rod; Circular cartridge bag is installed on base, is made the coated titanium pipe, fine copper rod and top place in the circular cartridge bag; In circular cartridge bag, be distributed into ammonium nitrate/NaCl composite explosives equably, and insert electric cap, the radially thick 25mm of explosive; Ignite electric cap, moment is realized coated titanium pipe and fine copper, and excellent two Metal Explosion are compound is connected, and its combination interface corrugate toe-in closes, and bond strength reaches 100MPa-280MPa; Then rolling by the box pass that passage reduces 700 ℃ of temperature by a series of cross-sectional areas to the blast compound bar billet, roll a time rolling on edge, the full coated titanium/copper core compound bar of the rectangular cross section of acquisition 11mm * 50mm * Lmm through three passages are flat; Compound bar is carried out surface finish handle, make finished product, the painted detection of PT is qualified, and UT detects a flaw in conjunction with rate 98%, and the combination interface resistance R is 15.10 * 10
-7Ω .Gm
-2
The 310S stainless steel tube that selects wall thickness 3mm is the clad metal pipe, and its inner surface is carried out oil removing clean, and cleaning refreshes; Select the fine copper rod of diameter of phi 38mm, to its alignment and surperficial refresh process; By Fig. 3 assembly is installed then, requires to have between stainless steel inside pipe wall and the fine copper rod 2.5mm blast gap; Use rock ammonium antimony/wood powder/NaCl composite explosives No. 2, the thick 27mm of explosive radially ignites electric cap, with the compound connection of exploding of 2200m/S detonation velocity; Obtain 310S stainless steel/copper core bimetallic compound bar billet, its interface bond strength reaches 180MPa-280MPa; Rolling by box-shaped hole shape shown in Figure 5, roll through three passages are flat 900 ± 10 ℃ of temperature, a time rolling on edge, the two sides flat radius of the radian that is rolled into 20mm * 46mm * 1225mm are the full coating 310S stainless steel/copper core compound bar of the flat section of 11mm-12mm; Compound bar is carried out surface finish handle, make finished product.
Select the chromium nickel stainless steel pipe of wall thickness 2.8mm, and its inner surface is carried out oil removing clean, cleaning refreshes; Select the fine copper rod of diameter of phi 50.5mm, to its alignment and surperficial refresh process; By Fig. 3 assembly is installed then; Require to have between chromium nickel stainless steel pipe and the fine copper rod 3mm blast gap; Use rock ammonium antimony/wood powder/NaCl composite explosives No. 2, radially the thick 30mm of explosive ignites electric cap, explodes compound with the 2800m/S detonation velocity; The acquisition shear strength is that chromium nickel stainless steel/copper core bimetallic of 200MPa-280MPa coats compound bar billet entirely; Rolling by box-shaped hole shape shown in Figure 5,850 ± 10 ℃ of rolling temperatures, the chromium nickel stainless steel/copper core bimetallic that obtains the flat section coats compound bar billet entirely, handles through surface finish, makes finished product.Its stainless steel layer thickness is even, and surface quality all meets the demands, and the welding again of product has also reached processing request.
Getting the trade mark is the TA2 titanium tube, the red copper bar of wall thickness 1mm and trade mark T2, respectively red copper bar and pure titanium pipe are carried out cleaning surfaces processing and chemical treatment, by Fig. 3 assembly is installed then, make titanium tube and red copper bar blast clearance control at 0.6mm, the thick 10mm of explosive, detonating charge, obtaining the titanium coating thickness is the circular compound bar billet of 1.2mm, pass adopts the box pass of accompanying drawing 5 to be rolled, 610 ℃/20min of heating cycle, and obtaining dimensions at last is the compound bar product of 10mm * 30mm * Lmm rectangular cross section, its composite bed thickness uniformity and surface quality all satisfy application requirements, and the weldering again of product has also reached processing request.
Titanium tube and the diameter of choosing wall thickness 1.1mm are φ 32mm red copper bar, carrying out cleaning surfaces respectively handles and chemical treatment, by Fig. 3 assembly is installed then, requires the blast gap of remaining 2.1mm between titanium tube and red copper bar, in cylindrical cartridge bag, pour into No. 30 terraced barium explosives of preparation, the thick 9mm of explosive, neck is kept evenly as much as possible to web, and the stifled top end in the end inserts No. 8 industrial detonator then, detonating charge, moment realizes that the metallurgy of two kinds of metals connects; Through ultrasonic examination in conjunction with rate 〉=98%, its bond strength reaches 180MPa, by the technological process of Fig. 4 the compound bar billet that makes is carried out the annealing in process of 450 ℃/2h then, carrying out turning processing and finish again handles, obtain the circular compound bar goods of φ 34mm * Lmm, product satisfies specification requirement fully.
Choosing the trade mark is the nickel metal tube of N6, wall thickness 8mm, the fine copper rod is φ 50mm, respectively nickel metal tube and fine copper rod surface are cleaned and chemical treatment, two kinds of metal tube rods are carried out process Installation by Fig. 3, the blast gap of 20mm is installed at two intermetallics, then the nitramine composite explosives are distributed into equably in circular cartridge bag, making its radially maximum web is 70mm, ignite electric cap then, make the seam under the high explosion velocity of 3000m/s of two metals, form and have the full coating copper core bimetallic compound bar of high bond strength that carrying out subsequent thermal processing for compound bar provides good rolling blank.
Claims (1)
1. full production method that coats copper core compound bar is characterized in that this method comprises:
(1) inner surface to the clad metal pipe carries out the oil removing cleaning, cleaning refreshes;
(2) the fine copper rod is carried out alignment, and refresh process is carried out on its surface;
(3) follow these steps to install assembly:
A. treated clad metal pipe and fine copper rod are installed on the base of priming device, make the blast gap that has 0.5mm-25mm between clad metal inside pipe wall and the fine copper rod;
B. at the stifled top end in the top of clad metal pipe and fine copper rod;
C., circular cartridge bag is installed on base, clad metal pipe and fine copper rod and top are placed in the circular cartridge bag;
D. be distributed into explosive equably in circular cartridge bag, and insert electric cap, it is the thick 5mm-80mm of explosive radially;
(4) ignite electric cap then, moment is realized clad metal pipe and fine copper two kinds of compound connections of Metal Explosion of rod;
(5) then the compound bar of the compound connection of exploding is pursued the rolling or machined of box pass that passage reduces by a series of cross-sectional areas in the scope of 600 ℃-1000 ℃ of temperature, the acquisition section is the compound bar of flat, circle, rectangle and many specifications;
(6) finishing being carried out on the compound bar surface handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153140 CN1290659C (en) | 2003-08-08 | 2003-08-08 | Production method of fully coated copper core composite rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153140 CN1290659C (en) | 2003-08-08 | 2003-08-08 | Production method of fully coated copper core composite rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1513637A true CN1513637A (en) | 2004-07-21 |
| CN1290659C CN1290659C (en) | 2006-12-20 |
Family
ID=34240752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03153140 Expired - Fee Related CN1290659C (en) | 2003-08-08 | 2003-08-08 | Production method of fully coated copper core composite rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1290659C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219502B (en) * | 2008-01-16 | 2010-08-11 | 宝鸡特钢钛业有限责任公司 | Novel technique for producing bi-metal composite rod bar |
| CN102179617A (en) * | 2011-05-27 | 2011-09-14 | 舞钢神州重工金属复合材料有限公司 | Explosive welding process for internal or external explosion of composite pipe joint |
| CN102189326A (en) * | 2011-05-27 | 2011-09-21 | 南京三邦金属复合材料有限公司 | Explosive welding method for titanium-copper composite rod |
| CN108044228A (en) * | 2018-01-30 | 2018-05-18 | 郑州宇光复合材料有限公司 | A kind of copper-aluminium joint explosion welding apparatus used for transmission line |
| CN114131171A (en) * | 2021-12-06 | 2022-03-04 | 中北大学 | Explosive welding method for double-layer circular tube |
-
2003
- 2003-08-08 CN CN 03153140 patent/CN1290659C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219502B (en) * | 2008-01-16 | 2010-08-11 | 宝鸡特钢钛业有限责任公司 | Novel technique for producing bi-metal composite rod bar |
| CN102179617A (en) * | 2011-05-27 | 2011-09-14 | 舞钢神州重工金属复合材料有限公司 | Explosive welding process for internal or external explosion of composite pipe joint |
| CN102189326A (en) * | 2011-05-27 | 2011-09-21 | 南京三邦金属复合材料有限公司 | Explosive welding method for titanium-copper composite rod |
| CN102179617B (en) * | 2011-05-27 | 2013-04-03 | 舞钢神州重工金属复合材料有限公司 | Explosive welding process for internal or external explosion of composite pipe joint |
| CN108044228A (en) * | 2018-01-30 | 2018-05-18 | 郑州宇光复合材料有限公司 | A kind of copper-aluminium joint explosion welding apparatus used for transmission line |
| CN114131171A (en) * | 2021-12-06 | 2022-03-04 | 中北大学 | Explosive welding method for double-layer circular tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1290659C (en) | 2006-12-20 |
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