CN100491000C - Method for calendering pure copper foil - Google Patents
Method for calendering pure copper foil Download PDFInfo
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- CN100491000C CN100491000C CNB2006101479517A CN200610147951A CN100491000C CN 100491000 C CN100491000 C CN 100491000C CN B2006101479517 A CNB2006101479517 A CN B2006101479517A CN 200610147951 A CN200610147951 A CN 200610147951A CN 100491000 C CN100491000 C CN 100491000C
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- copper foil
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- calendering
- cold rolling
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Abstract
The invention relates to a calendaring method, in particular to a calendaring method for pure copper foil. The steps of the method are that: a. a copper strip is treated with annealing; b. the copper strip is done with cold rolling on a cold rolling mill so as to obtain the copper foil, wherein, during the a step, the copper strip is placed in an annealing oven the temperature of which is set at 350-550 DEG C, with the annealing time lasting 6-8 hours; the copper strip is then insulated and taken out for cooling to the room temperature. The advantages of the invention are that the rate of finished products produced by four processes of rolling with the traditional method is 88.53 percent while the rate thereof is 97 percent with the improved method, with an increase of 8.47 percent; the rate of initial rolling reduction of the cold rolling of the finished products is more than 80 percent; the energy consumption used by the rolling mill is reduced by 66 percent; the service life of a working rod on the rolling mill is extended more than three times; the D/h equals to 1100-1500 with the traditional technique while the D/h equals to 5000 with the improved method, with an efficiency increase of three times and the tension intensity and extensibility of the copper foil produced by the method can also be improved.
Description
Technical field
The method that the present invention relates to roll, specifically a kind of method of calendering pure copper foil.
Background technology
Traditional handicraft is to Copper Foil calendering following method commonly used: it is cold rolling to carry out four roads earlier, and then annealing in process.Example: the pure copper foil of wide 153 thick 0.1mm needs through four roads from the Copper Foil that the 0.1mm cold rolling is extended down to 0.018mm: 17m/ is divided into example with processing 100Kg speed:
First road: be calendered to 0.04mm 108 minutes consuming time from 0.1mm;
Second road: be calendered to 0.025mm 173 minutes consuming time from 0.04mm;
The 3rd road: be calendered to 0.021mm 205 minutes consuming time from 0.025mm;
The 4th road: be calendered to 0.018mm 240 minutes consuming time from 0.021mm,
Total 726 minutes consuming time.
The defective of this technology: when the Copper Foil product is cold rolling, how the processing passage can be because the low situation of percentage elongation the intensity height appears and in the broken aggravation of crystal grain, traditional handicraft can only be calendered to 0.04mm through our practical operation proof together from 0.1mm, metal work hardening, plasticity is obviously descended, traditional handicraft is not because of making annealing in process before first road is rolling, directly under hard attitude situation, roll, the inner crystal grain of Copper Foil this moment changes because of preceding working procedure, metal work hardening, plasticity is obviously descended, and processing makes crystal grain destroy aggravation on this basis, therefore must take the multiple tracks method for processing to reach processing purpose.
" putting down in writing the defective of Copper Foil calendering traditional handicraft in China and foreign countries' non-ferrous metal metallurgy calendering New Machining Technology new technology and the quality control inspection standard utility handbook.Put down in writing the Copper Foil product when cold rolling as the 1226th page the 7th section of this book, how passage can be because the low situation of percentage elongation the intensity height appears and in the broken aggravation of crystal grain.The 1225th page of the 6th section performance of having put down in writing soft goods as this book depends primarily on finished product annealing process, but the cold rolling reduction ratio before the annealing also has very big influence to finished product annealing process and final mechanical performance.The cold rolling reduction ratio of finished product is bigger, and then the finished product recrystallization annealing time can shorten, and annealing temperature also can correspondingly reduce, and percentage elongation is also higher simultaneously.Therefore generally require cold rolling reduction ratio more than 50%.Put down in writing because the metal work hardening when cold rolling obviously descends plasticity as the 1224th page the 8th section of this book, plastic deformation constantly descends and makes cold rolling more and more difficultly, even raw edges and part occur, so that can not continue rolling.
Summary of the invention
The objective of the invention is to: overcome above-mentioned defective, a kind of method of calendering pure copper foil is provided.
The objective of the invention is to realize: before rolling, increase by one raw material annealing process, only need once to be calendered to 0.018mm from 0.08-0.12mm, (the thinnest 0.016mm that reaches) together by following technical method.This technical scheme is as follows in detail: a kind of method of calendering pure copper foil may further comprise the steps: a, with the copper strips annealing in process; B, copper strips are cold rolling on cold-rolling mill, make Copper Foil, and among the described step a, copper strips is positioned in the annealing furnace, and the annealing furnace temperature is set to 350-550 ℃, and annealing time 6-8 hour, the insulation of annealing back was taken out, and is cooled to room temperature.The insulation of annealing back is 6-12 hour among the step a, and among the step b, linear velocity is the 15-20m/ branch when cold rolling.This method, further comprising the steps of: c, step b gained copper foil annealing is handled, the annealing furnace temperature is set to 350-550 ℃, and annealing time 4-6 hour, the insulation of annealing back was taken out after 6-12 hour, was cooled to room temperature, finishing, packing.Also can may further comprise the steps: c, step b gained Copper Foil is cut, the Copper Foil after cutting is positioned over the annealing furnace steamed stuffed bun, the annealing furnace temperature is set to 350-550 ℃, and annealing time 4-6 hour, the insulation of annealing back was taken out and is cooled to room temperature, packing after 6-12 hour.
The method of the disclosed a kind of calendering pure copper foil of the present invention, its advantage shows:
1. working ability: (example: wide 153 thick 0.1mm) be extended down to the Copper Foil of 0.018mm from the 0.1mm cold rolling, 240 minutes consuming time, 726 minutes consuming time of traditional handicraft saved time 486 fens Copper Foil, and work efficiency improves more than 3 times.It is obvious that this technology improves work efficiency during to the Copper Foil below the processing thickness 0.035mm, uses conventional mill just can process, and finished product once cold rolling reduction ratio is more than 80%.Reduced raw-material loss in the calender line, and end properties increases, cut down the consumption of energy.
2. yield rate: calculate with per pass calendering raw material loss 3%: through four road mill product rates is 88.53%, improves back yield rate 97% and improves 8.47%.
3. used energy consumption reduces 66% on the cold-rolling mill.
4. the rod of working on the cold-rolling mill prolongs more than 3 times service life.
5. (D: work rod rod body diameter, h: minimum rolled thickness), improve D/h=5000 after the technology, efficient improves 3 times to traditional handicraft D/h=1100-1500.
6. tension intensity and the percentage elongation that makes Copper Foil with this method increases.
The specific embodiment
Below in conjunction with embodiment the present invention is further described.
Embodiment 1
With 100Kg copper strips (copper strips thickness 0.08mm, copper strips is purchased in East China, Wujiang nonferrous materials factory), be positioned over the annealing furnace steamed stuffed bun, the annealing furnace temperature is set to 550 ℃, annealing time 6 hours, the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 6 hours, was cooled to room temperature, in the annealing furnace steamed stuffed bun, take out copper strips, cold rolling on 4GLY240-90 type four rod milling train milling trains, linear velocity is the 15m/ branch when cold rolling, obtains the 0.016mm Copper Foil after cold rolling.
Embodiment 2
With 100Kg copper strips (copper strips thickness 0.12mm, copper strips is purchased in East China, Wujiang nonferrous materials factory), be positioned over the annealing furnace steamed stuffed bun, the annealing furnace temperature is set to 350 ℃, annealing time 8 hours, the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 12 hours, was cooled to room temperature, in the annealing furnace steamed stuffed bun, take out copper strips, cold rolling on 4GLY240-90 type four rod milling train milling trains, linear velocity is the 20m/ branch when cold rolling, obtains the 0.018mm Copper Foil after cold rolling.
Embodiment 3
With 100Kg copper strips (copper strips thickness 0.10mm, copper strips is purchased in East China, Wujiang nonferrous materials factory), be positioned over the annealing furnace steamed stuffed bun, the annealing furnace temperature is set to 450 ℃, annealing time 7 hours, the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 10 hours, was cooled to room temperature, in the annealing furnace steamed stuffed bun, take out copper strips, cold rolling on 4GLY240-90 type four rod milling train milling trains, linear velocity is the 17m/ branch when cold rolling, obtains the 0.018mm Copper Foil after cold rolling.
Embodiment 4
The Copper Foil of embodiment 1 gained is positioned over the annealing furnace steamed stuffed bun, and the annealing furnace temperature is set to 450 ℃, annealing time 4 hours, and the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 6 hours, was cooled to room temperature, took out Copper Foil in the annealing furnace steamed stuffed bun, finishing, packing.
Embodiment 5
The Copper Foil of embodiment 2 gained is positioned over the annealing furnace steamed stuffed bun, and the annealing furnace temperature is set to 350 ℃, annealing time 6 hours, the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 12 hours, was cooled to room temperature, take out Copper Foil in the annealing furnace steamed stuffed bun, next procedure production is changeed in finishing.
Embodiment 6
The Copper Foil of embodiment 3 gained is positioned over the annealing furnace steamed stuffed bun, and the annealing furnace temperature is set to 400 ℃, annealing time 5 hours, and the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 10 hours, was cooled to room temperature, took out Copper Foil in the annealing furnace steamed stuffed bun, finishing, packing.
Embodiment 7
The Copper Foil of embodiment 1 gained is cut according to the requirement of client model, Copper Foil after cutting is positioned over the annealing furnace steamed stuffed bun, the annealing furnace temperature is set to 450 ℃, annealing time 4 hours, the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 6 hours, was cooled to room temperature, in the annealing furnace steamed stuffed bun, take out Copper Foil, packing.
Embodiment 8
The Copper Foil of embodiment 2 gained is cut according to the requirement of client model, Copper Foil after cutting is positioned over the annealing furnace steamed stuffed bun, the annealing furnace temperature is set to 350 ℃, annealing time 6 hours, the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 12 hours, was cooled to room temperature, in the annealing furnace steamed stuffed bun, take out Copper Foil, packing.
Embodiment 9
The Copper Foil of embodiment 3 gained is cut according to the requirement of client model, Copper Foil after cutting is positioned over the annealing furnace steamed stuffed bun, the annealing furnace temperature is set to 400 ℃, annealing time 4.5 hours, the insulation of annealing back was taken out the annealing furnace steamed stuffed bun after 8 hours, was cooled to room temperature, in the annealing furnace steamed stuffed bun, take out Copper Foil, packing.
Do tension intensity and percentage elongation experiment with the Copper Foil of above-mentioned gained 0.018mm with the Copper Foil that traditional handicraft makes 0.018mm
Test process:
1. the scope of application:
This method adopts the mechanical test method to measure Copper Foil tension intensity and percentage elongation at room temperature.
2. test specimen
The size of Copper Foil sample adopts cutting method to be cut into 5 samples that are of a size of 254X18MM.Sample should clean, no burr slight crack.
3. laboratory apparatus
3.1MCS-L1 type Microcomputer Test System for Motor;
3.2 numeral shows electronic tension tester;
3.3 self-control cutting machine.
4. process of the test
4.1 sample weighing;
4.2 sample should be smooth, distortionless gauffer;
4.3 cut 5 samples that are of a size of 300X18mm with cutting machine;
4.4 weighing sample exact value 0.01 gram;
4.5 record weight is calculated sectional area mean value;
Sectional area mean value=sample weight/(specimen length * Copper Foil density)
4.6 with the Copper Foil specimen holder between the pulling force anchor clamps, testing length 200mm
4.7 record test data (fracture moment)
Tension intensity (MPa)=pulling force (N)/sample sectional area mean value (mm
2)
Percentage elongation (%)=fracture development length/specimen length * 100%
| The inventive method makes the Copper Foil of 0.018mm | Traditional handicraft makes the Copper Foil of 0.018mm | |
| Percentage elongation (%) | Greater than 11% | 8％ |
| Tension intensity (MPa) | Greater than 200MPa | 200MPa |
Claims (5)
1, a kind of method of calendering pure copper foil may further comprise the steps:
A, with 0.08-0.12mm fine copper band annealing in process;
B, fine copper band are cold rolling on cold-rolling mill, make Copper Foil,
It is characterized in that: among the described step a, copper strips is positioned in the annealing furnace, and the annealing furnace temperature is set to 350-550 ℃, and annealing time 6-8 hour, the insulation of annealing back was taken out, and is cooled to room temperature.
2, the method for calendering pure copper foil according to claim 1, the insulation of annealing back is 6-12 hour among the step a.
3, the method for calendering pure copper foil according to claim 1, among the step b, linear velocity is the 15-20m/ branch when cold rolling.
4, the method for calendering pure copper foil according to claim 1, further comprising the steps of:
C, step b gained copper foil annealing is handled, the annealing furnace temperature is set to 350-550 ℃, and annealing time 4-6 hour, the insulation of annealing back was taken out after 6-12 hour, was cooled to room temperature, finishing, packing or change next procedure production.
5, the method for calendering pure copper foil according to claim 1, further comprising the steps of:
C, step b gained Copper Foil is cut, the Copper Foil after cutting is positioned over the annealing furnace steamed stuffed bun, the annealing furnace temperature is set to 350-550 ℃, and annealing time 4-6 hour, the insulation of annealing back was taken out and is cooled to room temperature after 6-12 hour, finishing, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101479517A CN100491000C (en) | 2006-12-25 | 2006-12-25 | Method for calendering pure copper foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101479517A CN100491000C (en) | 2006-12-25 | 2006-12-25 | Method for calendering pure copper foil |
Publications (2)
| Publication Number | Publication Date |
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| CN101209457A CN101209457A (en) | 2008-07-02 |
| CN100491000C true CN100491000C (en) | 2009-05-27 |
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| CNB2006101479517A Expired - Fee Related CN100491000C (en) | 2006-12-25 | 2006-12-25 | Method for calendering pure copper foil |
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Families Citing this family (18)
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| CN102319733B (en) * | 2011-01-18 | 2014-04-16 | 菏泽广源铜带股份有限公司 | Production process for red copper rolled copper foil without rolling needle hole |
| EP2716601B1 (en) * | 2011-06-02 | 2017-03-15 | JX Nippon Mining & Metals Corporation | Copper foil for manufacturing graphene and graphene manufacturing method |
| JP5679580B2 (en) * | 2011-11-07 | 2015-03-04 | Jx日鉱日石金属株式会社 | Rolled copper foil |
| JP5721609B2 (en) * | 2011-11-15 | 2015-05-20 | Jx日鉱日石金属株式会社 | Copper foil for producing graphene and method for producing graphene |
| CN103071678A (en) * | 2012-11-20 | 2013-05-01 | 无锡常安通用金属制品有限公司 | Calendaring method of copper foil |
| CN103341488B (en) * | 2013-05-31 | 2016-08-10 | 富威科技（吴江）有限公司 | A kind of processing method of 1/8th hard slim pure copper strips of state |
| CN104057260B (en) * | 2014-06-30 | 2016-02-10 | 中色奥博特铜铝业有限公司 | A kind of processing method of rolled copper foil mother metal |
| CN105344713A (en) * | 2015-10-27 | 2016-02-24 | 无锡贺邦金属制品有限公司 | Copper foil forming method |
| CN105195514A (en) * | 2015-10-27 | 2015-12-30 | 无锡贺邦金属制品有限公司 | Copper foil cold rolling method |
| CN105195515A (en) * | 2015-10-27 | 2015-12-30 | 无锡贺邦金属制品有限公司 | Forming method for high-elongation copper foil |
| CN105215054A (en) * | 2015-10-27 | 2016-01-06 | 无锡贺邦金属制品有限公司 | A kind of Copper Foil calendering process |
| CN105195516A (en) * | 2015-10-27 | 2015-12-30 | 无锡贺邦金属制品有限公司 | Copper foil rolling method |
| CN105772508B (en) * | 2015-12-27 | 2017-12-19 | 佛山市领卓科技有限公司 | A kind of method of copper foil deep processing |
| CN105543746B (en) * | 2016-01-29 | 2017-08-15 | 灵宝金源朝辉铜业有限公司 | Rolled copper foil softening annealing process |
| CN105951005A (en) * | 2016-05-30 | 2016-09-21 | 中航工业哈尔滨轴承有限公司 | Red copper wire softening treatment process |
| CN105845942A (en) * | 2016-06-20 | 2016-08-10 | 山东建筑大学 | Preparation method of nano graphene copper foil |
| CN107557561A (en) * | 2017-08-08 | 2018-01-09 | 东莞市灿煜金属制品有限公司 | The copper material stress-removal process of appropriateness drop hardness |
| CN113275379A (en) * | 2021-06-02 | 2021-08-20 | 清远市进田企业有限公司 | Preparation process of high-ductility electrolytic copper |
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2006
- 2006-12-25 CN CNB2006101479517A patent/CN100491000C/en not_active Expired - Fee Related
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| CN101209457A (en) | 2008-07-02 |
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Granted publication date: 20090527 Termination date: 20181225 |