CN108393396A - Battery steel shell manufacturing method - Google Patents
Battery steel shell manufacturing method Download PDFInfo
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- CN108393396A CN108393396A CN201810189085.0A CN201810189085A CN108393396A CN 108393396 A CN108393396 A CN 108393396A CN 201810189085 A CN201810189085 A CN 201810189085A CN 108393396 A CN108393396 A CN 108393396A
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- station
- box hat
- steel shell
- outer diameter
- shell manufacturing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 54
- 239000010959 steel Substances 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000009966 trimming Methods 0.000 claims abstract description 12
- 238000004080 punching Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 101100008047 Caenorhabditis elegans cut-3 gene Proteins 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- RRMGGYGDQCMPKP-UHFFFAOYSA-N gold lithium Chemical compound [Li].[Au] RRMGGYGDQCMPKP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention provides a kind of battery steel shell manufacturing methods, belong to battery technology field.The above method forms cylinder box hat, the further techniques such as stretching, flaring and trimming including being stamped and formed out round steel sheet, stretching, and by strictly controlling drawing deformation, ensure that the stability of the uniform quality of different box hat thickness.Specifically, the above method includes eight procedures, is completed on corresponding station per procedure；First station is used to bar shaped steel disc being stamped and formed out round steel sheet, second station is used to stretch to the 5th station, and above-mentioned stretching strictly controls drawing deformation, and the 6th station is shaping station, 7th and eighth station be respectively used to flaring and trimming, eventually form cylindric battery steel shell.By strictly controlling drawing deformation, the stability of the uniform quality of different box hat thickness ensure that.
Description
Technical field
The present invention relates to cell manufacturing techniques fields, in particular to a kind of battery steel shell manufacturing method.
Background technology
It by lithium metal or lithium alloy is negative material, using the battery of non-aqueous electrolytic solution that " lithium battery ", which is a kind of,.
Lithium metal battery is proposed and is studied by Gilbert N.Lewis earliest within 1912.When the 1970s,
M.S.Whittingham is proposed and the lithium ion battery that begins one's study.Since the chemical characteristic of lithium metal is very active so that lithium gold
Processing, preservation, the use of category, it is very high to environmental requirement.So lithium battery is not applied for a long time.With science and technology
Development, present lithium battery has become mainstream.
Lithium battery is broadly divided into two classes：Lithium metal battery and lithium ion battery.Lithium ion battery does not contain metallic state
Lithium, and can charge.5th generation product lithium metal battery of rechargeable battery was born in 1996, safety, ratio
Capacity, self-discharge rate and the ratio of performance to price are superior to lithium ion battery.Since the high-tech of its own requires limitation, now only
The company of a few countries is producing this lithium metal battery.
Lithium battery generally all includes the battery case of a tubular, and the battery case of conventional method manufacture is uniform in the prior art
Degree, quality stability are poor.
Invention content
The purpose of the present invention is to provide a kind of battery steel shell manufacturing method, using this method can produce the uniformity and
The higher battery case of quality stability.
The invention is realized in this way：
A kind of battery steel shell manufacturing method, includes the following steps：
A. punching press is carried out to steel disc using circular die, forms round steel sheet in homogeneous thickness；
B. punching stretch is carried out to round steel sheet using circular die so that round steel sheet becomes cylindric box hat；And
Control drawing deformation；
C. the box hat formed to last station using assembling die is stretched；And control drawing deformation；
D. the box hat formed to step c is flared；
E. trimming is carried out to the box hat that Step d is formed.
Further,
The method includes eight stations；
To bar shaped steel disc 1 is stamped and formed out round steel sheet on first station；
Preliminary elongational is carried out to the round steel sheet on second station and forms cylindric box hat；
The box hat generated to second station on third station further stretches；
It is stretched using combination mode structure on the 4th station and the 5th station；
It is formed on the 6th station；
It is flared on the 7th station；
Trimming is carried out on the 8th station.
Further,
The diameter of the round steel sheet generated on first station is between 60mm and 61mm.
Further,
Between 31.79mm and 31.89mm, the wall thickness control of the box hat exists the box hat internal diameter generated on second station
Between 0.253mm and 0.257mm, deformation rate 81.5%；Height is stretched between 25.12mm and 25.22mm.
Further,
The box hat internal diameter generated on third station is between 25.8mm and 26.8mm, and body wall thickness control is in 0.24 He
Between 0.28, deformation rate 83.5%；Height is stretched between 30.9mm and 31.09mm.
Further,
On 4th station, punching stretch carries out it using combination mode structure, box hat internal diameter 22.2mm and 23.2mm it
Between, for outer diameter between 23.03mm and 23.13mm, heavy wall outer diameter 23.22 (± 0.05) is thick between 23.17mm and 23.27mm
Between wall length 7.95mm and 8.05mm, height 50.72 is stretched between 50.22mm and 51.22mm, thick wall thickness is in 0.24mm
Between 0.28mm；For walled thickness between 0.17mm and 0.21mm, combination die is thinning, deformation rate 85.4%.
Further,
On 5th station, punching stretch, box hat internal diameter 19.76 (± 0.05), shell are carried out to box hat using combination mode structure
Outer diameter 20.04 (± 0.05), heavy wall outer diameter 20.28 (± 0.05), heavy wall length 7.5mm (± 0.5), stretching height 73.37 (±
0.5), thick wall thickness 0.26 (± 0.02), walled thickness 0.14 (± 0.02), deformation rate 87%.
Further,
6th station is forming station, box hat internal diameter 17.66 (± 0.05), outer diameter 17.96 (± 0.05), body wall thickness control
Make 0.15 (± 0.02), thick wall thickness 0.26 (± 0.02), deformation rate 89.5%；Stretch 74.9 (± 0.5) of height.
Further,
7th station is flaring station, box hat internal diameter 17.66 (± 0.05), outer diameter 17.96 (± 0.05), heavy wall outer diameter
18.18 (± 0.05), body wall thickness control is in 0.15 (± 0.02), thick wall thickness 0.26 (± 0.02), deformation rate 89.5%；
Heavy wall length 9.3 (± 0.05) stretches 73.92 (± 0.05) of height.
Further,
Eighth station is trimming station；Box hat is total high by 68.03 (± 0.5), notch outer diameter 18.2 (± 0.05), heavy wall 0.26
(± 0.02), thin-walled 0.16 (± 0.02), bottom outer diameter 17.96 (± 0.5).
The beneficial effects of the invention are as follows：
The battery steel shell manufacturing method that the present invention is obtained by above-mentioned design, including be stamped and formed out round steel sheet, stretch shape
At cylinder box hat, the further techniques such as stretching, flaring and trimming, and by strictly controlling drawing deformation, it ensure that difference
The stability of the uniform quality of box hat thickness.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is process flow chart provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram that bar shaped steel disc 1 is stamped and formed out to round steel sheet on first station provided in an embodiment of the present invention；
Fig. 3 is battery steel shell structure schematic diagram provided in an embodiment of the present invention.
Icon：1- bar shaped steel discs；2- round steel sheets；3- box hats.
Specific implementation mode
To keep the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement guarantor below
The scope of the present invention of shield, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
In the description of the present invention, it is to be understood that, the term of indicating position or position relationship is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated equipment
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is instruction or implies that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is instruction or implies relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" refers to only that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Be in direct contact including the first and second features, can also include the first and second features not be in direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
Embodiment：
A kind of battery steel shell manufacturing method is present embodiments provided, for the progress multiple working procedure of bar shaped steel disc 1 to be manufactured into
Cylindric battery steel shell 3.The above method mainly include be stamped and formed out round steel sheet 2, stretch formed cylinder box hat 3, further
The techniques such as stretching, flaring and trimming, and by strictly controlling drawing deformation, ensure that the uniform of 3 thickness of different box hats
The stability of quality.
Specifically, the above method includes eight stations, and each station corresponds to a procedure.First station be mainly used for from
Multiple round steel sheets 2 are stamped and formed out on bar shaped steel disc 1.The standby material width of bar shaped steel disc 1 is 115mm, blanking knife in this process
Mouth diameter 60.5 (± 0.5) mm, deflection is smaller, to ensure that blanking faucal portion is smooth, uniform wall thickness.In order to more fully
Ground utilizes material, reduces and wastes, and in the present embodiment, two rows of round steel sheets 2, also, two rows of circles are stamped out on a bar shaped steel disc 1
Shape steel disc 2 mutually staggers.
Second station is used to the round steel sheet 2 generated on the first station carrying out preliminary elongational to form cylindric box hat
3.So that 3 internal diameter 31.84 (± 0.05) of box hat, outer diameter 32.35 (± 0.05), body wall thickness control is on 0.255 (± 0.02) left side
The right side, deformation rate 81.5%.Stretch 25.17 (± 0.05) of height.
Third station further stretches the box hat 3 generated on second station so that 3 internal diameter 26.3 of box hat (±
0.05), outer diameter 27.04 (± 0.05), body wall thickness control is in 0.26 (± 0.02) left and right, deformation rate 83.5%.Stretch height
31.4(±0.5)。
The box hat 3 generated in 3rd station is further processed using combination mode structure on 4th station so that in box hat 3
Diameter 22.7 (± 0.05), shell outer diameter 23.08 (± 0.05), heavy wall outer diameter 23.22 (± 0.05), heavy wall length 8mm (± 0.5),
Stretch 50.72 (± 0.5) of height, thick wall thickness 0.26 (± 0.02), walled thickness 0.19 (± 0.02), combination die thinning 0.07
For best deflection, deformation rate 85.4%.
5th station, the box hat 3 generated using combination the 4th station of mode structure pair is further processed, and is made in box hat 3
Diameter 19.76 (± 0.05), shell outer diameter 20.04 (± 0.05), heavy wall outer diameter 20.28 (± 0.05), heavy wall length 7.5mm (±
0.5) 73.37 (± 0.5) of height, thick wall thickness 0.26 (± 0.02), walled thickness 0.14 (± 0.02), deformation rate, are stretched
87%.
6th station is forming station so that 3 internal diameter 17.66 (± 0.05) of box hat, outer diameter 17.96 (± 0.05), body
Wall thickness control, 0.15 (± 0.02) left and right, thick wall thickness 0.26 (± 0.02), deformation rate 89.5%, stretching height 74.9 (±
0.5)。
7th station is flaring station so that 3 internal diameter 17.66 (± 0.05) of box hat, outer diameter 17.96 (± 0.05), heavy wall
Outer diameter 18.18 (± 0.05), body wall thickness control is in 0.15 (± 0.02) left and right, thick wall thickness 0.26 (± 0.02), deformation rate
89.5%.Heavy wall length promotees 9.3 (± 0.05), stretches 73.92 (± 0.05) of height.
Eighth station be trimming station, total a height of 68.03 (± 0.5) of box hat 3 after trimming, notch outer diameter 18.2 (±
0.05), heavy wall 0.26 (± 0.02), thin-walled 0.16 (± 0.02), bottom outer diameter 17.96 (± 0.05).
3 manufacturing method of box hat provided in this embodiment using combination mode structure, 3 stack shell wall thickness of box hat up and down evenly, and
And dimensionally stable, row yielding are high.
It should be noted that length or height unit are mm in present disclosure, digital unquote is tolerance, such as is cut
3 height of box hat behind side is 68.03 (± 0.5), represents it between 68.08 and 67.08.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of battery steel shell manufacturing method, which is characterized in that include the following steps：
A. punching press is carried out to steel disc using circular die, forms round steel sheet in homogeneous thickness；
B. punching stretch is carried out to round steel sheet using circular die so that round steel sheet becomes cylindric box hat；And it controls
Drawing deformation；
C. the box hat formed to last station using assembling die is stretched；And control drawing deformation；
D. the box hat formed to step c is flared；
E. trimming is carried out to the box hat that Step d is formed.
2. battery steel shell manufacturing method according to claim 1, which is characterized in that the method includes eight stations；
To bar shaped steel disc 1 is stamped and formed out round steel sheet on first station；
Preliminary elongational is carried out to the round steel sheet on second station and forms cylindric box hat；
The box hat generated to second station on third station further stretches；
It is stretched using combination mode structure on the 4th station and the 5th station；
It is formed on the 6th station；
It is flared on the 7th station；
Trimming is carried out on the 8th station.
3. battery steel shell manufacturing method according to claim 2, which is characterized in that the circular steel generated on first station
The diameter of piece is between 60mm and 61mm.
4. battery steel shell manufacturing method according to claim 2, which is characterized in that in the box hat generated on second station
Diameter is between 31.79mm and 31.89mm, and between 0.253mm and 0.257mm, deformation rate is the wall thickness control of the box hat
81.5%；Height is stretched between 25.12mm and 25.22mm.
5. battery steel shell manufacturing method according to claim 2, which is characterized in that in the box hat generated on third station
Diameter is between 25.8mm and 26.8mm, and body wall thickness control is between 0.24 and 0.28, deformation rate 83.5%；Height is stretched to exist
Between 30.9mm and 31.09mm.
6. battery steel shell manufacturing method according to claim 2, which is characterized in that on the 4th station, using combination die knot
Structure carries out it punching stretch, and for box hat internal diameter between 22.2mm and 23.2mm, outer diameter is thick between 23.03mm and 23.13mm
Wall outer diameter 23.22 (± 0.05) is between 23.17mm and 23.27mm, between heavy wall length 7.95mm and 8.05mm, stretches height
50.72 between 50.22mm and 51.22mm, and thick wall thickness is between 0.24mm and 0.28mm；Walled thickness 0.17mm with
Between 0.21mm, combination die is thinning, deformation rate 85.4%.
7. battery steel shell manufacturing method according to claim 2, which is characterized in that on the 5th station, using combination die knot
Structure carries out punching stretch, box hat internal diameter 19.76 (± 0.05), shell outer diameter 20.04 (± 0.05), heavy wall outer diameter 20.28 to box hat
(± 0.05), heavy wall length 7.5mm (± 0.5) stretch 73.37 (± 0.5) of height, thick wall thickness 0.26 (± 0.02), thin-walled
Thickness 0.14 (± 0.02), deformation rate 87%.
8. battery steel shell manufacturing method according to claim 2, which is characterized in that the 6th station is forming station, box hat
Internal diameter 17.66 (± 0.05), outer diameter 17.96 (± 0.05), body wall thickness control 0.15 (± 0.02), thick wall thickness 0.26 (±
0.02), deformation rate 89.5%；Stretch 74.9 (± 0.5) of height.
9. battery steel shell manufacturing method according to claim 2, which is characterized in that the 7th station is flaring station, box hat
Internal diameter 17.66 (± 0.05), outer diameter 17.96 (± 0.05), heavy wall outer diameter 18.18 (± 0.05), body wall thickness control is 0.15
(± 0.02), thick wall thickness 0.26 (± 0.02), deformation rate 89.5%；Heavy wall length 9.3 (± 0.05) stretches height
73.92(±0.05)。
10. battery steel shell manufacturing method according to claim 2, which is characterized in that eighth station is trimming station；Box hat
Total high by 68.03 (± 0.5), notch outer diameter 18.2 (± 0.05), heavy wall 0.26 (± 0.02), thin-walled 0.16 (± 0.02), outside bottom
Diameter 17.96 (± 0.5).
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|---|---|---|---|
| CN201810189085.0A CN108393396A (en) | 2018-03-07 | 2018-03-07 | Battery steel shell manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189085.0A CN108393396A (en) | 2018-03-07 | 2018-03-07 | Battery steel shell manufacturing method |
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ID=63092070
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| CN201810189085.0A Pending CN108393396A (en) | 2018-03-07 | 2018-03-07 | Battery steel shell manufacturing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201837A (en) * | 2018-08-15 | 2019-01-15 | 东莞市瑞成精密模具有限公司 | A kind of battery steel shell drawing process |
| CN112421066A (en) * | 2020-11-18 | 2021-02-26 | 常州市江南电池有限公司 | Production process of environment-friendly alkaline battery |
| CN115312928A (en) * | 2022-10-09 | 2022-11-08 | 宁波震裕科技股份有限公司 | Round steel shell forming process and battery assembling process of battery |
| CN117680551A (en) * | 2023-12-11 | 2024-03-12 | 东莞市创明电池技术有限公司 | Manufacturing process of cylindrical steel shell and application of cylindrical steel shell |
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| CN102130309A (en) * | 2010-01-12 | 2011-07-20 | 深圳市比克电池有限公司 | Lithium ion battery steel shell, battery and manufacture method thereof |
| CN103531728A (en) * | 2013-10-16 | 2014-01-22 | 宁波光华电池有限公司 | Steel shell of alkaline zinc-manganese battery and production process thereof |
| CN205645896U (en) * | 2016-04-14 | 2016-10-12 | 东莞海金杜门五金制品有限公司 | Thin wall alkaline battery shell |
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Application publication date: 20180814 |