CN106623426B - A method of aluminium foil surface wetting tension is improved using multistage sided corona treatment - Google Patents
A method of aluminium foil surface wetting tension is improved using multistage sided corona treatment Download PDFInfo
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- CN106623426B CN106623426B CN201610917129.8A CN201610917129A CN106623426B CN 106623426 B CN106623426 B CN 106623426B CN 201610917129 A CN201610917129 A CN 201610917129A CN 106623426 B CN106623426 B CN 106623426B
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- aluminium foil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/40—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling foils which present special problems, e.g. because of thinness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
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Abstract
The present invention relates to the technical fields of aluminium foil production and processing, and in particular to a method of aluminium foil surface wetting tension is improved using multistage sided corona treatment.Aluminium foil is widely used in the fields such as packaging, electronics, building due to having many advantages, such as nontoxic, shading, heat-insulated, moisture-proof, choke, beauty.For the aluminium foil of hard state delivery, it is directly used in printing and compound, if the wetting tension of aluminium foil surface is not up to standard, the adhesive force of protective agent and bonding agent will be influenced, it may appear that the phenomenon that ink deinking；The wetting tension of aluminium foil surface can also influence the combined strength bination of aluminium foil and plastics, paper simultaneously, in actual production, the method of generally use low temperature oil removing annealing improves aluminium foil surface and soaks Zhang Zhangli, but this method there are activity time length, high energy consumption, the shortcomings of end properties can be influenced, the present invention is the method using multistage sided corona treatment while cutting, have the advantages that time saving, process simply, on the mechanical property of aluminum foil finished product without influence, has important practical value in aluminium foil production.
Description
Technical field
The present invention relates to the technical fields of aluminium foil production and processing, and in particular to a kind of to improve aluminium foil using multistage sided corona treatment
The method of moistened surface tension.
Background technology
Aluminium foil is widely used in packaging, electronics, builds due to having many advantages, such as nontoxic, shading, heat-insulated, moisture-proof, choke, beauty
Build equal fields.It is when usual user uses aluminium foil, it is compound with paper, plastics progress, further widen the application market of aluminium foil.
For hard state delivery aluminium foil, be directly used in printing and it is compound, if the wetting tension of aluminium foil surface is not up to standard, will influence to protect
The adhesive force of agent and bonding agent, it may appear that the phenomenon that ink deinking；Simultaneously aluminium foil surface wetting tension can also influence aluminium foil and
The combined strength bination of plastics, paper, in actual production, the method for generally use low temperature oil removing annealing improve aluminium foil surface wetting
Power, but this method there are activity time length, high energy consumption, can influence the shortcomings of end properties, the present invention is adopted while cutting
With multistage sided corona treatment, has the advantages that time saving, process simply, on the mechanical property of aluminum foil finished product without influence, in the life of aluminium foil
There is important practical value in production.
Invention content
In order to overcome drawbacks described above, the technical problem to be solved by the invention is to provide a kind of raising aluminium foil surfaces dyne
The method that aluminium foil surface wetting tension is improved using multistage sided corona treatment of value and heat seal strength.
In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:Aluminium foil is improved using multistage sided corona treatment
The method of moistened surface tension passes through following steps successively：
(1) melting, casting, cold rolling：Melting, casting are carried out after taking raw material according to alloying component standard, then according to certain
Rolling pass（Intermediate annealing process is determined according to the performance requirement of client）, carry out roughing, in roll, finish rolling obtain 0.006mm ~
Aluminum foil finished product in 0.1mm thickness ranges；
(2) sided corona treatment, cutting：By step（1）In obtained aluminum foil finished product, successively pass through corona machine deflector roll, cross roller,
The deflector roll of cutting machine carries out threading, then opens corona machine and carries out multistage sided corona treatment to aluminium foil surface, and according to required
Specification is cut；
(3) finished product inspection, packaging：Checking step（2）It is middle cut the obtained surface quality of aluminum foil finished product, end face quality,
Then moistened surface tension, heat seal strength, mechanical property etc. carry out packaging and storage.
Further, step（2）Described in multistage sided corona treatment the specific steps are：By 0.006mm ~ 0.1mm thickness
Aluminum foil finished product passes through the deflector roll of multistage corona machine, crosses after the deflector roll threading of roller, cutting machine successively, opens corona machine switch, root
The power and corona series of setting corona treatment are required according to product thickness and product dyne value of aluminium foil, every grade of corona equipment
Power bracket is 10KW ~ 15KW, and voltage range is 15 ~ 20KHZ in 10 ~ 15KV, frequency, and the cutting speed control of cutting machine exists
100~300m/min。
The present invention has positive beneficial effect below：
1, the corona treatment process that the present invention uses, principle are using high-frequency high voltage in processed aluminium foil surface
Corona discharge makes aluminium foil surface molecular structure rearrange, and generating more polar fractions makes the moistened surface of aluminium foil surface
Power is improved significantly, be conducive to the subsequent printing of aluminium foil surface and aluminium foil and paper, plastics it is compound.
2, the present invention can be used for the hard state delivery aluminium foil of 0.006mm-0.1mm thickness ranges, without the aluminium of sided corona treatment
The surface dynes value of foil reaches 32-33dyn, and heat seal strength can reach 6 ~ 7N；And what the method for using level-one sided corona treatment obtained
The surface dynes value of 0.006mm ~ 0.1mm thickness aluminum foil finished products reaches 34 ~ 36dyn, and heat seal strength can reach 9 ~ 10N；Using two
The surface dynes value for 0.006mm ~ 0.1mm thickness aluminum foil finished products that grade, the method for three-level sided corona treatment obtain reaches 36 ~ 38dyn,
Heat seal strength can reach 10 ~ 12N.
Specific implementation mode
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention, after having read the present invention, various equivalences of the those skilled in the art to the present invention
The modification of form falls within the application range as defined in the appended claims.
Embodiment 1
The manufacturing method that aluminium foil surface wetting tension is improved using multistage sided corona treatment is carried out according to following process：
（1）Melting, casting, cold rolling：Mass percentage according to chemical composition is Si:0.57%、Fe:0.77%、Cu：
0.03%、Mn：0.03%、Mg：0.005%、Zn：0.01%、Ti：0.03%、Al：98.56%.It is carried out after weighing raw material with surplus impurity
Melting, casting are at blank, and the thickness of blank is 6.93mm.Online degasification is carried out using rotation air blast in fusion process, is protected
Hydrogen content is in 0.12mL/kg or less in card melt；Melt is purified using 30 PPi+40 PPi two-stages board-like filter types
Processing, and stirred more than 3 times using electromagnetic agitating technology, it is ensured that ingredient is uniform；Refining medium is used as using argon inert gas,
Refining time is more than 30min.Entire fusion process temperature must control at 770 DEG C hereinafter, when leading stove temperature control 750 ±
10℃；Using the roll casting zone of 42mm and the roll casting speed of 822mm/min when riser and production, and Al-Ti-B alterants are added, really
It protects and obtains uniformly tiny grain structure.Then cast-rolling stock is subjected to roughing, by 5 passes to 1.2mm thickness, so
550 DEG C of intermediate annealings are carried out afterwards, are then carried out being rolled to 0.35mm thickness in 3 passages, are then carried out trimming finishing, then pass through
The foil for crossing 4 passages is rolled to the finished product thickness of 0.02mm.
（2）Multistage sided corona treatment, cutting：By step（1）In obtained 0.02mm thickness aluminum foil finished product, pass through successively
Corona machine deflector roll, the deflector roll progress threading for crossing roller, cutting machine, then open corona machine and carry out sided corona treatment to aluminium foil surface, and
And it is cut according to required specification；The power setting of every grade of corona treatment is 13KW, voltage 14KV, and frequency is
The cutting speed of 15KHZ, cutting machine are 200m/min.
（3）Finished product inspection, packaging：Finished product inspection includes dimensional gaughing：Include mainly thickness deviation, width tolerance, rice number；
Surface quality inspection：Surface cannot have bright line, striped to wipe and scratch, and black silk secret note etc. influences the defect of appearance quality；End face
Quality examination：End face is smooth, totally, cannot have staggered floor, wrinkle print, turriform, stain etc. cannot have scollop, scallop, broken sea etc., Bu Nengyou
Connector；It is packed after inspection.
Surface dynes value without the 0.02mm thickness aluminium foils of sided corona treatment is 33dyn, and heat seal strength can reach 7N；And
The surface dynes value for the 0.02mm thickness aluminum foil finished products that this implementation is obtained using the method for level-one sided corona treatment reaches 35dyn, heat
Sealing strength can reach 9N；Using the surface dynes for the 0.02mm thickness aluminum foil finished products that the method for two level, three-level sided corona treatment obtains
Value reaches 37dyn, and heat seal strength can reach 11N.Mechanical performance：Tensile strength is 192MPa, elongation percentage 2.5%, pinhole number 0/
m2。
Embodiment 2
The manufacturing method that aluminium foil surface wetting tension is improved using multistage sided corona treatment is carried out according to following process：
（1）Melting, casting, cold rolling：Mass percentage according to chemical composition is Si:0.62%、Fe:0.80%、Cu：
0.038%、Mn：0.0069%、Mg：<0.003%、Zn：0.0067%、Ti：0.023%、Al：98.47%.Original is weighed with surplus impurity
Melting, casting are carried out after material into blank, and the thickness of blank is 7.2mm.It is carried out online using rotation air blast in fusion process
Degasification ensures that hydrogen content is in 0.12mL/kg or less in melt；Using the 30 board-like filter types of PPi+40 PPi two-stages to melt
Purified treatment is carried out, and is stirred more than 3 times using electromagnetic agitating technology, it is ensured that ingredient is uniform；Using argon inert gas conduct
Medium is refined, refining time is more than 30min.Entire fusion process temperature must be controlled at 770 DEG C hereinafter, temperature control when leading stove
System is at 750 ± 10 DEG C；Using the roll casting zone of 42mm and the roll casting speed of 822mm/min when riser and production, and add Al-Ti-B
Alterant, it is ensured that obtain uniformly tiny grain structure.Then cast-rolling stock is subjected to roughing, is arrived by 5 passes
Then 1.28mm thickness carries out 550 DEG C of intermediate annealings, then carry out being rolled to 0.35mm thickness in 3 passages, then be cut
Side finishing, then the foil Jing Guo 4 passages be rolled to the finished product thickness of 0.03mm.
（2）Multistage sided corona treatment, cutting：By step（1）In obtained 0.03mm thickness aluminum foil finished product, pass through successively
Corona machine deflector roll, the deflector roll progress threading for crossing roller, cutting machine, then open corona machine and carry out sided corona treatment to aluminium foil surface, and
And it is cut according to required specification；The power setting of every grade of corona treatment is 15KW, voltage 15KV, and frequency is
The cutting speed of 15KHZ, cutting machine are 200m/min.
（3）Finished product inspection, packaging：Finished product inspection includes dimensional gaughing：Include mainly thickness deviation, width tolerance, rice number；
Surface quality inspection：Surface cannot have bright line, striped to wipe and scratch, and black silk secret note etc. influences the defect of appearance quality；End face
Quality examination：End face is smooth, totally, cannot have staggered floor, wrinkle print, turriform, stain etc. cannot have scollop, scallop, broken sea etc., Bu Nengyou
Connector；It is packed after inspection.
Surface dynes value without the 0.03mm thickness aluminium foils of sided corona treatment is 33dyn, and heat seal strength can reach 7N；And
The surface dynes value for the 0.03mm thickness aluminum foil finished products that this implementation is obtained using the method for level-one sided corona treatment reaches 36dyn, heat
Sealing strength can reach 9N；Using the surface dynes for the 0.03mm thickness aluminum foil finished products that the method for two level, three-level sided corona treatment obtains
Value reaches 37dyn, and heat seal strength can reach 11N.Mechanical performance：Tensile strength is 185MPa, elongation percentage 2.0%, pinhole number 0/
m2。
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (1)
1. a kind of method that aluminium foil surface wetting tension is improved using multistage sided corona treatment, it is characterized in that：Pass through following step successively
Suddenly,
(1) melting, casting, cold rolling：Melting, casting are carried out after taking raw material according to alloying component standard, then according to certain road
Secondary, cold rolling obtains the aluminum foil finished product in 0.006mm ~ 0.1mm thickness ranges；
(2) multistage sided corona treatment, cutting：By step（1）In obtained 0.006mm ~ 0.1mm thickness ranges aluminum foil finished product,
The deflector roll progress threading passed through the deflector roll of multistage corona machine successively, cross roller, cutting machine, then opens multistage corona machine to aluminium foil table
Face carries out sided corona treatment, and is cut；
(3) finished product inspection, packaging：Checking step（2）The middle surface quality, end face quality, surface for cutting obtained aluminum foil finished product
Then wetting tension, heat seal strength carry out packaging and storage；
Step（2）Described in sided corona treatment the specific steps are：The aluminum foil finished product of 0.006mm ~ 0.1mm thickness is passed through successively
The deflector roll of multistage corona machine is crossed after the deflector roll threading of roller, cutting machine, corona machine switch is opened, according to the product thickness of aluminium foil
Be worth the power and corona series for requiring setting corona treatment with product dyne, the power bracket of every grade of corona equipment be 10KW ~
15KW, voltage range are 15 ~ 20KHZ in 10 ~ 15KV, frequency, and the cutting speed control of cutting machine is in 100 ~ 300m/min；
Step（3）The surface dynes for 0.006mm ~ 0.1mm thickness aluminum foil finished products that the middle method using level-one sided corona treatment obtains
Value reaches 34 ~ 36dyn, and heat seal strength reaches 9 ~ 10N；The 0.006mm obtained using the method for two level, three-level sided corona treatment ~
The surface dynes value of 0.1mm thickness aluminum foil finished products reaches 36 ~ 38dyn, and heat seal strength reaches 10 ~ 12N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610917129.8A CN106623426B (en) | 2016-10-21 | 2016-10-21 | A method of aluminium foil surface wetting tension is improved using multistage sided corona treatment |
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| CN201610917129.8A CN106623426B (en) | 2016-10-21 | 2016-10-21 | A method of aluminium foil surface wetting tension is improved using multistage sided corona treatment |
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| CN106623426B true CN106623426B (en) | 2018-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020173940A1 (en) * | 2019-02-25 | 2020-09-03 | Hydro Aluminium Rolled Products Gmbh | Aluminium foil for battery electrodes and production method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593356A (en) * | 2020-04-13 | 2020-08-28 | 江苏中基复合材料有限公司 | Production process and application of multistage corona-treated aluminum foil |
| CN112296087A (en) * | 2020-10-09 | 2021-02-02 | 烟台东海铝箔有限公司 | Method for improving surface dyne value of battery foil |
| CN113714287A (en) * | 2020-12-31 | 2021-11-30 | 杭州五星铝业有限公司 | Production process of aluminum foil for Dada double-sided photocell |
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| CN201189672Y (en) * | 2008-06-13 | 2009-02-04 | 江阴金中达新材料有限公司 | Small splitting machine with corona handling arrangement |
| CN201684703U (en) * | 2010-05-31 | 2010-12-29 | 江阴金中达新材料有限公司 | Coating machine with corona processing device |
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