CN105886828B - A kind of microalloy copper foil and its processing method - Google Patents
A kind of microalloy copper foil and its processing method Download PDFInfo
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- CN105886828B CN105886828B CN201610247307.0A CN201610247307A CN105886828B CN 105886828 B CN105886828 B CN 105886828B CN 201610247307 A CN201610247307 A CN 201610247307A CN 105886828 B CN105886828 B CN 105886828B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
The present invention relates to a kind of microalloy copper foil and its processing method, the copper foil is Cu Fe Sn P, and its percentage by weight is：Fe0.010 0.015%, Sn0.0080 0.015%, P0.0035 0.0085%, surplus is Cu.Its processing method, which is mainly, uses horizontal continuous casting process, then cold rolling in four times, and is equipped with annealing operation between often cold rolling twice.The microalloy copper thickness is thin, and tensile strength and anti-softening ability are improved, and electrical conductivity and hardness are high, and simple for Fe alloyings processing method, and microalloy cost is low.By its make radiator tank, with small volume, lightweight, area of dissipation is big, radiating efficiency is high the features such as, with practical application promotional value.
Description
Technical field
The invention belongs to metal material field, it is related to a kind of microalloy copper foil and its processing method.
Background technology
Microalloy copper foil is a kind of high-efficiency radiator material for manufacturing radiator, in the market the vapour for corrugated tube type
Car radiator of water tank microalloy copper foil alloy has TSn0.08-0.01（T14405）、TSn0.12（C14415）、TSn0.1-0.3
（C14420）And TTe0.02-0.02（C14530）, main product is TSn0.08-0.01, and product concentrates on 0.045-0.06mm,
The pipe rock radiator small volume that is made of TSn0.08-0.0, lightweight, area of dissipation are big, radiating efficiency is high, but also there is weight
Amount is not light enough, elastic inadequate and anti-softening inadequate problem after being thinned.
《Shanghai non-ferrous metal》1998 first-phase《The development of ultra-thin water tank copper strips TOA alloys》The band reflected in one text
Material alloying element percentage by weight Sn（0.10-0.16%）, P (0.005%), Zn (0.02-0.07%), Ni (0.2%), thickness of strip
For 0.06mm, softening temperature is that microhardness HV110-140, conductance is 80%, tensile strength >=380Mpa more than 380 DEG C,
Alloy element Sn, Ni, Zn content is higher in the TOA alloy copper foil actual productions, and Sn, Ni are above 1000ppm；By cold rolling
Tensile strength only 400Mpa after working modulus 50%, performance improvement effect is not good；Final products are also partially thick, most thin 0.06mm.
Band percentage by weight disclosed in the processing method of No. 01133597.1 patent of invention strengthened ultra-thin rod copper belt
Sn0.03-0.09%, Zn0.03-0.12%, P0.002-0.008%, thickness are 0.045mm, and tolerance is -0.004mm, conductive
Rate is not less than 85%, and softening temperature is not less than 380 DEG C, and tensile strength is between 380-420Mpa, and hardness HV is in 110-130, only
It is that the copper foil has tensile strength deficiency, less than 420Mpa, not pressure-resistant enough the performance of foil resilience is bad after shaping, and product thickness is most
Thin 0.045mm, anti-softening 390 DEG C of temperature is not suitable with the service condition of higher temperature.
And《Non-ferrous metals processing》The copper foil reflected in the text of 2008 first phase one：TG1（Cu-Sn-Cr-P）, weight percent
Than Sn0.08-0.4%, Cr0.01-0.04%, P0.005-0.0090%；TG2（Cu-Sn-Te-P）, percentage by weight Sn0.04-
0.1%, Te0.006-0.012%, P0.005-0.0090%；TG1 and TG2 tensile strength ＞ 400MPa, softening temperature>400℃ 、
Electrical conductivity>85%IACS, HV115-140.In practical application：TG1 product thickness 0.05mm, the tension of cold processing ratio 61.5%
Intensity 410Mpa, hardness HV131, anti-softening 420 DEG C of temperature, conductance 85.9%；TG2 product thickness 0.05mm, cold processing ratio
61.5% tensile strength 394Mpa, hardness HV118, anti-softening 400 DEG C of temperature, conductance 90.5%.
《Non-ferrous metals processing》The disclosed Zhongshan city day second copper industry of text of the second phase one in 2014 uses Cu-0.02Fe-
0.025P, Cu-Fe-P corrosion resistance are not as other alloys such as Cu-Sn-P.
The alloying and processing method of above-mentioned copper alloy have that high expensive, anti-softening temperature be relatively low, copper thickness is partially thick
Etc. the not good problem of combination property（It see the table below）, the alloy element such as Sn, Te, Cr is valuable, and tensile strength can not in addition to Cu-Fe-P
Higher than 450Mpa, elasticity, voltage endurance capability are inadequate, it is impossible to meet the need for material is thinned, there is softening temperature less than 420 DEG C,
High temperature can not be met under the thinned trend of material anti-softening, while being 0.045- in addition to the most thin 0.14mm of Cu-Fe-P thickness
0.05mm thickness, is made water tank and lays particular stress on waste of materials.
The content of the invention
There is tensile strength elasticity to solve above-mentioned existing copper alloy production radiator tank copper strips paper tinsel product in the present invention
Not enough, the problems such as service condition is less than 420 DEG C, not thin enough the conjunction of material and alloying element high expensive is there is provided one kind with high-strength
Degree, height are anti-softening, it is adaptable to the microalloy copper foil and its processing method of radiator tank.
The present invention is achieved by the following scheme：
Above-mentioned microalloy copper foil, the copper foil is Cu-Fe-Sn-P, and its percentage by weight is：Fe0.010-0.015%,
Sn0.0080-0.015%, P0.0035-0.0085%, surplus are Cu.
The processing method of above-mentioned microalloy copper foil, it is then cold rolling in four times mainly using horizontal continuous casting process, and
Annealing operation is equipped between often cold rolling twice.
The processing method of described microalloy copper foil, its technological process is：
Dispensing-horizontal casting-milling face-roughing-trimming-first time annealing+cleaning-in roll-second annealing+cleaning-pre-
Finish rolling-third time annealing-finish rolling-slitting is cut-is packed.
The processing method of described microalloy copper foil, the particular content of its technological process is as follows：
Dispensing, weighs iron, tin, phosphor-copper and copper by proportioning respectively first；
Second, horizontal casting is carried out, raw material are carried out to pour into holding furnace progress cast after fusing heating；I.e.
Tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature is reached after 1200 DEG C, is sequentially added
Iron, tin, phosphor-copper are simultaneously sufficiently stirred for, and spectrum analysis is done in sampling, after copper water chemical composition is qualified, and the copper water of above-mentioned melting is passed through even
Body stove unicom pipeline enters holding furnace, carries out cast；
The made-up belt specification obtained after 3rd milling face, milling is 15-16 mm × 335-420 mm；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and in four processes successively
Three annealing operations are undergone, wherein
First time roughing and trimming, carry out first time annealing and clean；First time annealing temperature is 420-450 DEG C, time
6h；
Annealed and cleaned for the second time after being rolled in second, second of annealing temperature is 380-400 DEG C, time 6h；
Third time annealing is carried out after pre- finish rolling for the third time and is cleaned, third time annealing temperature is 340-360 DEG C, time 6h；
4th finish rolling；
Finally slitting is carried out to the band embryo after finish rolling to cut and pack.
The processing method of described microalloy copper foil, wherein：Add iron to be sufficiently stirred for after ten minutes, be subsequently added into tin abundant
After stirring, it is eventually adding phosphor-copper and is sufficiently stirred for.
The processing method of described microalloy copper foil, wherein：The cast uses and draws-stop-counter to push away-program stopped, wherein：
Draw journey for 12-15mm, counter to push away 0.5-0.8mm, pause 2.2-3.5s, casting speed is 1.8-2.5mm/s, and casting temperature is maintained at
1210-1230℃；Scope of the cold in-water temperature control at 15-30 DEG C, model of the cooling water leaving water temperature control at 35-45 DEG C
Enclose.
The processing method of described microalloy copper foil, wherein：The made-up belt specification that the horizontal casting is obtained is 17-17.5
mm×335-420 mm.The made-up belt specification obtained behind the milling face is 15-16 mm × 335-420 mm.
The processing method of described microalloy copper foil, wherein：The first time roughing is by 10 passes to 0.8-
1.0mm, then trimming is to 320-405 mm；
Rolled in second, by 5 passes to 0.10-0.15mm × 320-405mm；
Pre- finish rolling for the third time, by 3 passes to 0.055 mm × 320-405mm；
4th finish rolling, finish rolling to 0.03 mm × 320-405mm, by the four-high mills of diameter 120mm working rolls together
It is secondary to be pressed into, online front and rear tension force 150-160N.
The processing method of described microalloy copper foil, wherein：The passage of first time roughing 10 pressure is assigned as 15.5-
13.8-10.9-7.9-5.7-4.1-2.8-1.9-1.4-1.1-0.8；
The pressure of five passages is rolled in second and is assigned as 0.8-0.45-0.3-0.18-0.13-0.1；
The pre- passage of finish rolling 3 pressure is assigned as 0.1-0.065-0.055 for the third time.
Beneficial effect：
The microalloy copper foil of the present invention has following characteristics：Tensile strength 430-480MPa, 430-450 DEG C of softening temperature,
Electrical conductivity 85-91%IACS, hardness HV120-150,0.03 ± 0.002mm of copper thickness, and the letter of Fe alloyings processing method
Single, microalloy cost is low；Solve existing copper alloy production radiator tank copper strips paper tinsel product exist tensile strength elasticity not enough,
The problems such as service condition is less than 420 DEG C, not thin enough the conjunction of material and alloying element high expensive, with high intensity, high softening resistance
Can, be particularly suitable for use in radiator tank.The radiator produced by the copper foil has that small volume, lightweight, area of dissipation be big, radiating
The features such as efficiency high.
Embodiment
The microalloy copper foil of the present invention is Cu-Fe-Sn-P, and its percentage by weight is：Fe0.010-0.015%,
Sn0.0080-0.015%, P0.0035-0.0085%, surplus are Cu.
The processing method of the microalloy copper foil, which is mainly, uses horizontal continuous casting process, then cold rolling in four times, and every two
It is secondary it is cold rolling between be equipped with annealing operation.Its technological process is：
Dispensing-horizontal casting-milling face-roughing-trimming-first time annealing+cleaning-in roll-second annealing+cleaning-pre-
Finish rolling-third time annealing-finish rolling-slitting is cut-is packed.
The particular content of the technological process is as follows：
Dispensing, weighs iron, tin, phosphor-copper and copper by proportioning respectively first；
Second, horizontal casting is carried out, raw material are carried out to pour into holding furnace progress cast after fusing heating；I.e.
Tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature is reached after 1200 DEG C, is sequentially added
Iron, tin, phosphor-copper are simultaneously sufficiently stirred for, and spectrum analysis is done in sampling, after copper water chemical composition is qualified, and the copper water of above-mentioned melting is passed through even
Body stove unicom pipeline enters holding furnace, carries out cast；Wherein add iron to be sufficiently stirred for after ten minutes, be subsequently added into tin and be sufficiently stirred for
Afterwards, phosphor-copper is eventually adding to be sufficiently stirred for；
Cast uses and draws-stop-counter to push away-program stopped, wherein：Draw journey for 12-15mm, it is counter to push away 0.5-0.8mm, pause 2.2-
3.5s, casting speed is 1.8-2.5mm/s, and casting temperature is maintained at 1210-1230 DEG C；It is required that cold in-water temperature control exists
15-30 DEG C of scope, scope of the cooling water leaving water temperature control at 35-45 DEG C；
The made-up belt specification that horizontal casting is obtained is 17-17.5 mm × 335-420 mm；
The made-up belt specification obtained after 3rd milling face, milling is 15-16 mm × 335-420 mm；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and in four processes successively
Three annealing operations are undergone, wherein
First time roughing is annealed and clear by 10 passes to 0.8-1.0mm, then trimming to 320-405 mm, for the first time
Wash；First time annealing temperature is 420-450 DEG C, time 6h；
Rolled in second, by 5 passes to 0.10-0.15mm × 320-405mm, then carry out second of annealing simultaneously
Cleaning, second of annealing temperature is 380-400 DEG C, time 6h；
Pre- finish rolling for the third time, by 3 passes to 0.055 mm × 320-405mm, then carries out third time annealing and clear
Wash, third time annealing temperature is 340-360 DEG C, time 6h；
4th finish rolling, finish rolling to 0.03 mm × 320-405mm, by the four-high mills of diameter 120mm working rolls together
It is secondary to be pressed into, online front and rear tension force 150-160N；
Finally slitting is carried out to the band embryo after finish rolling to cut and pack.
The microalloy copper foil processed using above-mentioned technique has following characteristics：Tensile strength 430-480MPa, softening temperature
430-450 DEG C, electrical conductivity 85-91%IACS, hardness HV120-150,0.03 ± 0.002mm of copper thickness, and Fe alloyings
Processing method is simple, microalloy cost is low；The radiator produced by the copper foil has small volume, lightweight, area of dissipation big, scattered
The features such as thermal efficiency is high.
Embodiment 1
First dispensing is carried out by 0.01Fe, 0.008Sn, 0.0035P, surplus for Cu percentage by weight；
Then tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature is reached after 1200 DEG C, adds
Iron, is sufficiently stirred for after ten minutes, is subsequently added into tin and is sufficiently stirred for, and adds phosphor-copper and is sufficiently stirred for；The copper water of above-mentioned melting is taken
Sample does spectrum analysis, after copper water chemical composition is qualified, enters holding furnace by connected furnace unicom pipeline, carries out cast；
Cast draws journey for 12mm, pause 2.2s, counter to push away 0.5mm, then the 2.2s that pauses；Casting speed is 2mm/s, casting temperature
It is maintained at 1210-1220 DEG C；Scope of the cold in-water temperature control at 15-30 DEG C, cooling water leaving water temperature is controlled in 35-45
DEG C scope；
The made-up belt specification that horizontal casting is obtained is the mm of 17 mm × 380；
The made-up belt specification obtained after 3rd milling face, milling is the mm of 15mm × 380；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and in four processes successively
Three annealing operations are undergone, wherein
First time roughing is assigned as 15.5-13.8-10.9-7.9-5.7- by 10 passes to 0.8mm, the pressure of 10 passages
4.1-2.8-1.9-1.4-1.1-0.8；Then trimming carries out first time annealing and cleaned to 360 mm；First time annealing temperature
For 420 DEG C, time 6h；
Rolled in second, by the mm of 5 passes to 0.10 mm × 360, the pressure of five passages is assigned as 0.8-0.45-0.3-
0.18-0.13-0.1；Then annealed and cleaned for the second time, second of annealing temperature is 390 DEG C, time 6h；
Pre- finish rolling for the third time, by the mm of 3 passes to 0.055 mm × 360, the pressure of 3 passages is assigned as 0.1-0.065-
0.055；Then carry out third time annealing and clean, third time annealing temperature is 350 DEG C, time 6h；
4th finish rolling, the mm of finish rolling to 0.03 mm × 360, passes through four-high mill a time of diameter 120mm working rolls
It is pressed into, online front and rear tension force 150N；
Finally slitting is carried out to the product after finish rolling to be cut into the mm of 0.03 mm × 50 and pack.
430 DEG C of copper foil tensile strength 430MPa, softening temperature, electrical conductivity 90%IACS, the hardness HV120 of above-mentioned processing,
Copper thickness 0.03 ± 0.002mm, Fe alloying processing method is simple, microalloy cost is low；
The copper foil of above-mentioned processing is used for make radiator tank, with small volume, lightweight, area of dissipation is big, radiate
The features such as efficiency high.
Embodiment 2
0.01Fe, 0.01Sn are pressed first, and 0.0055P surpluses carry out dispensing for Cu percentage by weight；
Then tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature is reached after 1200 DEG C, adds
Iron, is sufficiently stirred for after ten minutes, is subsequently added into tin and is sufficiently stirred for, and adds phosphor-copper and is sufficiently stirred for；The copper water of above-mentioned melting is taken
Sample does spectrum analysis, after copper water chemical composition is qualified, enters holding furnace by connected furnace unicom pipeline, carries out cast；Cast is adopted
With drawing-stopping-counter to push away-program stopped, cast draws journey for 14mm, and counter to push away 0.6mm, pause 2.5s, casting speed is 1.8mm/s, casting
Make temperature and be maintained at 1210-1230 DEG C；It is required that cold in-water temperature control is in 15-30 DEG C of scope, cooling water leaving water temperature
Control the scope at 35-45 DEG C；
The made-up belt specification that horizontal casting is obtained is the mm of 17.5 mm × 410；
The made-up belt specification obtained after 3rd milling face, milling is the mm of 16 mm × 410；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and in four processes successively
Three annealing operations are undergone, wherein
First time roughing by 10 passes to 0.9mm, then trimming to 390 mm, anneal and clean for the first time；First
Secondary annealing temperature is 430 DEG C, time 6h；
Rolled in second, by 5 passes to 0.13mm × 390mm, then annealed and cleaned for the second time, second
Annealing temperature is 400 DEG C, time 6h；
Pre- finish rolling for the third time, by 3 passes to 0.055 mm × 390mm, then carries out third time annealing and cleans, the
Three annealing temperatures are 360 DEG C, time 6h；
4th finish rolling, finish rolling to 0.03 mm × 390mm passes through four-high mill a time pressure of diameter 120mm working rolls
Into online front and rear tension force 155N；
Finally slitting is carried out to the band embryo after finish rolling to cut 0.03 × 120 and pack.
435 DEG C of copper foil tensile strength 430MPa, softening temperature, electrical conductivity 86%IACS, the hardness HV120 of above-mentioned processing,
Copper thickness 0.03 ± 0.002mm, Fe alloying processing method is simple, microalloy cost is low；
The copper foil of above-mentioned processing is used for make radiator tank, with small volume, lightweight, area of dissipation is big, radiate
The features such as efficiency high.
Embodiment 3
0.012Fe, 0.012Sn, 0.0045P are pressed first, and surplus carries out dispensing for Cu percentage by weight；
Then tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature is reached after 1200 DEG C, adds
Iron, is sufficiently stirred for after ten minutes, is subsequently added into tin and is sufficiently stirred for, and adds phosphor-copper and is sufficiently stirred for；Spectrum analysis, copper water are done in sampling
After chemical composition is qualified, the copper water of above-mentioned melting is finally entered into holding furnace by connected furnace unicom pipeline, cast is carried out；Cast
It is counter to push away 0.8mm using drawing-stop-counter to push away-program stopped, wherein cast to draw journey for 15mm, pause 3.5s, casting speed is
2.5mm/s, casting temperature is maintained at 1210-1230 DEG C；It is required that scope of the cold in-water temperature control at 15-30 DEG C, cooling
Scope of the water leaving water temperature control at 35-45 DEG C；
The made-up belt specification that horizontal casting is obtained is the mm of 17.5 mm × 335；
The made-up belt specification obtained after 3rd milling face, milling is the mm of 16 mm × 335；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and in four processes successively
Three annealing operations are undergone, wherein
First time roughing by 10 passes to 1.0mm, then trimming to 320 mm, anneal and clean for the first time；First
Secondary annealing temperature is 450 DEG C, time 6h；
Rolled in second, by 5 passes to 0.15mm × 320mm, then annealed and cleaned for the second time, second
Annealing temperature is 400 DEG C, time 6h；
Pre- finish rolling for the third time, by 3 passes to 0.055 mm × 320mm, then carries out third time annealing and cleans, the
Three annealing temperatures are 350 DEG C, time 6h；
4th finish rolling, finish rolling to 0.03 mm × 320mm passes through four-high mill a time pressure of diameter 120mm working rolls
Into online front and rear tension force 150N；
Finally slitting is carried out to the band embryo after finish rolling to cut 0.03 × 80 and pack.
450 DEG C of copper foil tensile strength 450MPa, softening temperature, electrical conductivity 91%IACS, the hardness HV140 of above-mentioned processing,
Copper thickness 0.03 ± 0.002mm, Fe alloying processing method is simple, microalloy cost is low；
The copper foil of above-mentioned processing is used for make radiator tank, with small volume, lightweight, area of dissipation is big, radiate
The features such as efficiency high.
Embodiment 4
0.013Fe, 0.015Sn, 0.0075P are pressed first, and surplus carries out dispensing for Cu percentage by weight；
Then tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature is reached after 1200 DEG C, adds
Iron, is sufficiently stirred for after ten minutes, is subsequently added into tin and is sufficiently stirred for, and adds phosphor-copper and is sufficiently stirred for；Spectrum analysis, copper water are done in sampling
After chemical composition is qualified, the copper water of above-mentioned melting is finally entered into holding furnace by connected furnace unicom pipeline, cast is carried out；Cast
Using drawing-stopping-counter to push away-program stopped, wherein cast to draw journey for 13mm, counter to push away 0.7mm, pause 3s, casting speed is 2mm/s,
Casting temperature is maintained at 1220-1230 DEG C；It is required that scope of the cold in-water temperature control at 15-30 DEG C, cooling water goes out water temperature
Scope of the degree control at 35-45 DEG C；
The made-up belt specification that horizontal casting is obtained is the mm of 17.2 mm × 350；
The made-up belt specification obtained after 3rd milling face, milling is the mm of 15.8 mm × 350；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and in four processes successively
Three annealing operations are undergone, wherein
First time roughing by 10 passes to 0.8mm, then trimming to 330 mm, anneal and clean for the first time；First
Secondary annealing temperature is 450 DEG C, time 6h；
Rolled in second, by the mm of 5 passes to 0.12mm × 330, then annealed and cleaned for the second time, second
Secondary annealing temperature is 400 DEG C, time 6h；
Pre- finish rolling for the third time, by the mm of 3 passes to 0.055 mm × 330, then carries out third time annealing and cleans,
Third time annealing temperature is 360 DEG C, time 6h；
4th finish rolling, the mm of finish rolling to 0.03 mm × 330, passes through four-high mill a time of diameter 120mm working rolls
It is pressed into, online front and rear tension force 155N；
Finally slitting is carried out to the band embryo after finish rolling to cut 0.03 × 120 and pack.
450 DEG C of copper foil tensile strength 450MPa, softening temperature, electrical conductivity 88%IACS, the hardness HV150 of above-mentioned processing,
Copper thickness 0.03 ± 0.002mm, Fe alloying processing method is simple, microalloy cost is low；
The copper foil of above-mentioned processing is used for make radiator tank, with small volume, lightweight, area of dissipation is big, radiate
The features such as efficiency high.
Embodiment 5
0.014Fe, 0.009Sn, 0.0080P are pressed first, and surplus carries out dispensing for Cu percentage by weight；
Then tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature is reached after 1200 DEG C, adds
Iron, is sufficiently stirred for after ten minutes, is subsequently added into tin and is sufficiently stirred for, and adds phosphor-copper and is sufficiently stirred for；Spectrum analysis, copper water are done in sampling
After chemical composition is qualified, the copper water of above-mentioned melting is finally entered into holding furnace by connected furnace unicom pipeline, cast is carried out last
The copper water of above-mentioned melting is entered into holding furnace by connected furnace unicom pipeline, cast is carried out；Cast uses and draws-stop-counter to push away-stop
Program, wherein cast draw journey for 12mm, counter to push away 0.5mm, and pause 2. 5s, and casting speed is 2.5mm/s, and casting temperature is maintained at
1210-1230℃；It is required that scope of the cold in-water temperature control at 15-30 DEG C, cooling water leaving water temperature is controlled at 35-45 DEG C
Scope；
The made-up belt specification that horizontal casting is obtained is the mm of 17 mm × 420；
The made-up belt specification obtained after 3rd milling face, milling is the mm of 15mm × 420；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and in four processes successively
Three annealing operations are undergone, wherein
First time roughing by 10 passes to 1.0mm, then trimming to 405 mm, anneal and clean for the first time；First
Secondary annealing temperature is 420 DEG C, time 6h；
Rolled in second, by 5 passes to 0.15mm × 405mm, then annealed and cleaned for the second time, second
Annealing temperature is 380 DEG C, time 6h；
Pre- finish rolling for the third time, by 3 passes to 0.055 mm × 405mm, then carries out third time annealing and cleans, the
Three annealing temperatures are 340 DEG C, time 6h；
4th finish rolling, finish rolling to 0.03 mm × 405mm passes through four-high mill a time pressure of diameter 120mm working rolls
Into online front and rear tension force 160N；
Finally slitting is carried out to the band embryo after finish rolling to cut 0.03 × 50 and pack.
430 DEG C of copper foil tensile strength 480MPa, softening temperature, electrical conductivity 87%IACS, the hardness HV150 of above-mentioned processing,
Copper thickness 0.03 ± 0.002mm, Fe alloying processing method is simple, microalloy cost is low；
The copper foil of above-mentioned processing is used for make radiator tank, with small volume, lightweight, area of dissipation is big, radiate
The features such as efficiency high.
Embodiment 6
0.015Fe, 0.01Sn, 0.0085P are pressed first, and surplus carries out dispensing for Cu percentage by weight；
Then tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature is reached after 1200 DEG C, adds
Iron, is sufficiently stirred for after ten minutes, is subsequently added into tin and is sufficiently stirred for, and adds phosphor-copper and is sufficiently stirred for；Spectrum analysis, copper water are done in sampling
After chemical composition is qualified, the copper water of above-mentioned melting is finally entered into holding furnace by connected furnace unicom pipeline, cast is carried out；Cast
It is counter to push away 0.5mm using drawing-stop-counter to push away-program stopped, wherein cast to draw journey for 15mm, pause 2.2s, casting speed is
1.8mm/s, casting temperature is maintained at 1210-1230 DEG C；It is required that scope of the cold in-water temperature control at 15-30 DEG C, cooling
Scope of the water leaving water temperature control at 35-45 DEG C；
The made-up belt specification that horizontal casting is obtained is the mm of 17mm × 410；
The made-up belt specification obtained after 3rd milling face, milling is the mm of 15.5 mm × 410；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and in four processes successively
Three annealing operations are undergone, wherein
First time roughing by 10 passes to 0.8mm, then trimming to 380 mm, anneal and clean for the first time；First
Secondary annealing temperature is 440 DEG C, time 6h；
Rolled in second, by 5 passes to 0.10mm × 380mm, then annealed and cleaned for the second time, second
Annealing temperature is 390 DEG C, time 6h；
Pre- finish rolling for the third time, by 3 passes to 0.055 mm × 380mm, then carries out third time annealing and cleans, the
Three annealing temperatures are 340 DEG C, time 6h；
4th finish rolling, finish rolling to 0.03 mm × 380mm passes through four-high mill a time pressure of diameter 120mm working rolls
Into online front and rear tension force 160N；
Finally slitting is carried out to the band embryo after finish rolling to cut 0.03 × 100 and pack.
430 DEG C of copper foil tensile strength 480MPa, softening temperature, electrical conductivity 85%IACS, the hardness HV140 of above-mentioned processing,
Copper thickness 0.03 ± 0.002mm, Fe alloying processing method is simple, microalloy cost is low；
The copper foil of above-mentioned processing is used for make radiator tank, with small volume, lightweight, area of dissipation is big, radiate
The features such as efficiency high.
The microalloy copper foil of the present invention and the performance comparison of prior art are shown in Table 1.
The performance comparison of the microalloy copper foil of table 1 and prior art
| Copper foil title | Product most minimal thickness and tolerance | Alloying scheme | Anti-softening temperature/DEG C | Tensile strength/Mpa | Conductance/IACS% | It is corrosion-resistant |
| TOA alloys | 0.06±0.005 | Cu-0.2Ni-0.13Sn-0.045Zn | 400 | 400 | 80 | It is good |
| Strengthened ultra-thin rod copper belt | 0.045-0.004 | Cu-0.06Sn-0.075Zn-0.005P | 390 | 380-420 | 80-85 | Typically |
| Ultra-thin water tank belt TG1 | 0.05±0.005 | Cu-0.15Sn-0.024Cr-0.0086P | 420 | 410 | 85.9 | It is good |
| Ultra-thin water tank belt TG2 | 0.05±0.005 | Cu-0.11Sn-0.011Te-0.0073P | 400 | 394 | 90.5 | It is good |
| Water tank belt Tg | 0.14±0.005 | Cu-0.02Fe-0.025P | 430 | ≥450 | 80-85 | It is worst |
| Microalloy copper foil | 0.03±0.002 | Cu-0.012Fe-0.01Sn-0.0060P | 450 | ≥430 | 85-91 | Preferably |
Claims (10)
1. a kind of microalloy copper foil, the copper foil is Cu-Fe-Sn-P, its percentage by weight is：Fe0.010-0.015%,
Sn0.008-0.009%, P0.0035-0.0045%, surplus are Cu.
2. the processing method of microalloy copper foil as claimed in claim 1, mainly using horizontal continuous casting process, then in four times
It is cold rolling, and it is equipped with annealing operation between often cold rolling twice.
3. the processing method of microalloy copper foil as claimed in claim 2, its technological process is：
Dispensing-horizontal casting-milling face-roughing-trimming-first time annealing+cleaning-in roll-second annealing+cleaning-pre- finish rolling-
Third time annealing-finish rolling-slitting is cut-is packed.
4. the processing method of microalloy copper foil as claimed in claim 3, the particular content of its technological process is as follows：
Dispensing, weighs iron, tin, phosphor-copper and copper by proportioning respectively first；Second, horizontal casting is carried out, raw material are melted
Change and holding furnace progress cast is poured into after heating；Tough cathode and coverture are added to melting furnace, heating melts tough cathode, and temperature reaches
To after 1200 DEG C, sequentially add iron, tin, phosphor-copper and be sufficiently stirred for, spectrum analysis is done in sampling, after copper water chemical composition is qualified, will
The copper water of above-mentioned melting enters holding furnace by connected furnace unicom pipeline, carries out cast；The made-up belt rule obtained after 3rd milling face, milling
Lattice are 15-16 mm × 335-420 mm；
4th is cold rolling, it is cold rolling including roughing, in roll, four processes of pre- finish rolling and finish rolling, and undergone successively in four processes
Three annealing operations, wherein first time roughing and trimming, carry out first time annealing and clean；First time annealing temperature is 420-
450 DEG C, time 6h；Annealed and cleaned for the second time after being rolled in second, second of annealing temperature is 380-400 DEG C, time
6h；Third time annealing is carried out after pre- finish rolling for the third time and is cleaned, third time annealing temperature is 340-360 DEG C, time 6h；4th time
Finish rolling；Finally slitting is carried out to the band embryo after finish rolling to cut and pack.
5. the processing method of microalloy copper foil as claimed in claim 4, it is characterised in that：Iron is added fully to stir after ten minutes
Mix, be subsequently added into after tin is sufficiently stirred for, be eventually adding phosphor-copper and be sufficiently stirred for.
6. the processing method of microalloy copper foil as claimed in claim 4, it is characterised in that：The cast using drawing-stop-it is anti-
The program for pushing away-stopping, wherein：Draw journey for 12-15mm, counter to push away 0.5-0.8mm, pause 2.2-3.5s, casting speed is 1.8-
2.5mm/s, casting temperature is maintained at 1210-1230 DEG C；Scope of the cold in-water temperature control at 15-30 DEG C, cooling water goes out
Scope of the coolant-temperature gage control at 35-45 DEG C.
7. the processing method of microalloy copper foil as claimed in claim 4, it is characterised in that：The made-up belt that the horizontal casting is obtained
Specification is 17-17.5 mm × 335-420 mm.
8. the processing method of microalloy copper foil as claimed in claim 7, it is characterised in that：The made-up belt rule obtained behind the milling face
Lattice are 15-16 mm × 335-420 mm.
9. the processing method of microalloy copper foil as claimed in claim 8, it is characterised in that：10 passages are pressed in the first time roughing
0.8-1.0mm is rolling to, then trimming is to 320-405 mm；Rolled in second, by 5 passes to 0.10-0.15mm ×
320-405mm；Pre- finish rolling for the third time, by 3 passes to 0.055 mm × 320-405mm；4th finish rolling, finish rolling to 0.03
Mm × 320-405mm, is pressed into by four-high mill a time of diameter 120mm working rolls, online front and rear tension force 150-160N.
10. the processing method of microalloy copper foil as claimed in claim 9, it is characterised in that：The passage of first time roughing 10
Pressure is assigned as 15.5-13.8-10.9-7.9-5.7-4.1-2.8-1.9-1.4-1.1-0.8；The pressure of five passages is rolled in second
It is assigned as 0.8-0.45-0.3-0.18-0.13-0.1；The pre- passage of finish rolling 3 pressure is assigned as 0.1-0.065-0.055 for the third time.
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| CN110252972B (en) * | 2019-07-06 | 2021-11-30 | 湖北精益高精铜板带有限公司 | High-strength high-conductivity microalloy copper foil and processing method thereof |
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| CN101775522A (en) * | 2010-03-02 | 2010-07-14 | 十堰益民铜材有限公司 | Anticorrosive copper belt for automobile water tank and horizontal continuous casting method thereof |
| CN103014410A (en) * | 2012-12-24 | 2013-04-03 | 山西春雷铜材有限责任公司 | Copper alloy and fabrication method thereof |
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| JP4781008B2 (en) * | 2005-05-12 | 2011-09-28 | 株式会社神戸製鋼所 | Modified cross-section copper alloy plate and manufacturing method thereof |
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| CN103014410A (en) * | 2012-12-24 | 2013-04-03 | 山西春雷铜材有限责任公司 | Copper alloy and fabrication method thereof |
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