JPH06346282A - Forming material for can for battery and its production - Google Patents
Forming material for can for battery and its productionInfo
- Publication number
- JPH06346282A JPH06346282A JP5134988A JP13498893A JPH06346282A JP H06346282 A JPH06346282 A JP H06346282A JP 5134988 A JP5134988 A JP 5134988A JP 13498893 A JP13498893 A JP 13498893A JP H06346282 A JPH06346282 A JP H06346282A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- lubricating oil
- steel sheet
- surface roughness
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ＤＩ(Ｄrawing and Ｉ
roning)絞り加工で設ける電池用缶の形成材料に関し、
特に、ＤＩ絞り加工に用いるダイス及びパンチの消耗を
抑制し、ダイス及びパンチの寿命を向上させるものであ
る。BACKGROUND OF THE INVENTION The present invention relates to DI (Drawing and I).
roning) Regarding the forming material of the battery can provided by drawing,
In particular, it is intended to suppress the wear of the die and punch used for the DI drawing process and improve the life of the die and punch.
【０００２】[0002]
【従来の技術】近時、一端閉鎖面と、カバーを取り付け
る他端開口部を有する円筒形状の電池用缶を製造する方
法として、図４に示すようなＤＩ絞り加工方法が近時開
発されている。このＤＩ絞り加工方法を用いる場合、シ
ート鋼板Ｓから基材Ｍを打ち抜く際に、まず、円形に打
ち抜くブランク工程を行い、ついで、底壁Ｍ−１と周壁
Ｍ−２とを有する浅底円筒形状のカップとして絞るカッ
ピング工程を経て、該カップを次の一工程で所要の深さ
と径を有する円筒形状に加工するＤＩ絞り工程により行
っている。2. Description of the Related Art Recently, a DI drawing method as shown in FIG. 4 has recently been developed as a method for manufacturing a cylindrical battery can having a closed surface at one end and an opening at the other end for attaching a cover. There is. When using this DI drawing method, when punching the base material M from the sheet steel sheet S, first, a blanking step of punching in a circular shape is performed, and then a shallow bottom cylindrical shape having a bottom wall M-1 and a peripheral wall M-2. After the cupping step of squeezing the cup, the DI drawing step of processing the cup into a cylindrical shape having a required depth and diameter is performed in the next step.
【０００３】上記ＤＩ絞り加工を用いる場合、カップを
深絞りする工程で、周壁のみを引き伸ばし加工するた
め、例えば、底壁の板厚０.４ｍｍで、 周壁の板厚を０.
１５ｍｍまで絞ることが可能で、板厚に対するしごき率
（減少率）は従来の２倍強とすることが出来る。このよ
うに、周壁を薄肉とすると中空部の容積が大となり、充
填材が増加して電池特性を向上させることが出来る。ま
た、加工工程において、カップを成形した後、一度の深
絞りの工程で所要の深さとすることができ、加工工程の
大幅な減少、それに伴う製造コストの低減を図ることが
出来る利点がある。When the above-mentioned DI drawing is used, since only the peripheral wall is stretched in the step of deep-drawing the cup, the thickness of the bottom wall is 0.4 mm, and the thickness of the peripheral wall is 0.4 mm.
It can be squeezed to 15 mm, and the ironing rate (reduction rate) with respect to the plate thickness can be more than twice the conventional value. As described above, when the peripheral wall is made thin, the volume of the hollow portion becomes large, the amount of the filler increases, and the battery characteristics can be improved. Further, in the processing step, after forming the cup, it is possible to obtain the required depth in a single deep drawing step, which is advantageous in that the number of processing steps can be significantly reduced and the manufacturing cost can be reduced accordingly.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記Ｄ
Ｉ絞り加工方法を用いる場合、ＤＩ工程で一度に板厚の
約１／２程度に急激に絞るため、図５に示すＤＩ絞り用
金型において、缶形成材からなるカップ１の外周面１ａ
とダイス２の型面２ａ、及びカップ１の内周面１ｂとパ
ンチ３の外周面３ａの夫々の摺接面の摩擦係数が非常に
大きなものとなる。よって、ダイスの寿命及びパンチの
寿命が共に非常に短くなると共に、打ち抜き後にパンチ
３と打ち抜かれた電池用缶とを引き離すために大きな力
が必要となる。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
When the I drawing method is used, the thickness is drastically reduced to about ½ of the plate thickness at a time in the DI process. Therefore, in the DI drawing die shown in FIG.
The friction coefficient of the die surface 2a of the die 2 and the sliding contact surfaces of the inner peripheral surface 1b of the cup 1 and the outer peripheral surface 3a of the punch 3 are very large. Therefore, the life of the die and the life of the punch are both very short, and a large force is required to separate the punch 3 from the punched battery can after punching.
【０００５】上記した電池用缶の形成材料には、通常、
最初のブランク加工前に、潤滑油を表裏両面に塗布して
いるが、従来の電池用缶の形成材料の表裏両面は平滑面
であるため、潤滑油が流失しやすく、かつ、ブランク加
工からカッピング加工を経てＤＩ加工に達する時には、
潤滑油が減少あるいは油切れの状態となっている場合が
多い。これに対して、ダイスの型穴周面及びパンチの外
周面に潤滑油を供給することも行われるが、一回のシゴ
キ量が非常に大きいため、すぐに油切れが発生し、頻繁
に潤滑油を供給すると作業能率が大幅に低下する問題が
ある。The materials for forming the battery cans described above are usually
Lubricating oil is applied to both the front and back sides before the first blanking process, but since the front and back sides of the conventional battery can forming material are smooth, the lubricating oil is easily washed away and the blanking process is performed after the blanking process. When reaching DI processing after processing,
In many cases, the amount of lubricating oil has decreased or has run out. On the other hand, lubricating oil is also supplied to the outer peripheral surface of the die cavity and the outer peripheral surface of the punch, but since the amount of seawater at one time is very large, oil runs out quickly and frequent lubrication occurs. When oil is supplied, there is a problem that work efficiency is significantly reduced.
【０００６】本発明は、上記した問題を解消せんとする
もので、電池用缶の形成材料の表面を荒らして、潤滑油
の保持能力を高め、よって、ＤＩ絞り加工用の金型の寿
命を延ばすと共に、電池用缶のＤＩ絞り加工作業のスピ
ードアップを図ることを目的とするものである。The present invention is intended to solve the above-mentioned problems, and roughens the surface of the material for forming a battery can to improve the ability to retain the lubricating oil, and thus the life of the die for DI drawing. The purpose is to extend the work and speed up the DI drawing work of the battery can.
【０００７】[0007]
【課題を解決するための手段】即ち、本発明は、一端開
口の円筒形状の電池用缶をＤＩ(Ｄrawing and Ｉronin
g)絞り加工で形成するために用いる材料であって、表面
粗さ（Ｒａ）を０.５μｍ〜１.２μｍと荒らくした鋼板
の表面に、ニッケルメッキ層を均一な厚さで施して、ニ
ッケルメッキ表面粗さも上記鋼板表面と同様に荒らくし
ていることを特徴とする電池用缶の形成材料を提供する
ものである。尚、上記した材料は、シート形状で、コイ
ル形状に巻いている。That is, according to the present invention, a cylindrical battery can having an opening at one end is used for DI (Drawing and Ironin).
g) A material used for forming by drawing, the surface roughness (Ra) of which is 0.5 μm to 1.2 μm, and a nickel plating layer is applied to the surface of the steel plate with a uniform thickness, The present invention provides a material for forming a battery can, characterized in that the surface roughness of nickel plating is also roughened like the surface of the steel sheet. The above-mentioned materials are sheet-shaped and wound in a coil shape.
【０００８】上記した表面粗さ（Ｒａ）は、中心線平均
粗さを指し、図６に示すように、粗さ曲線からその中心
線方向に測定長さＬの部分を取り、この抜き取り部分の
中心線をＸ軸、縦倍率の方向をＹ軸とし、粗さ曲線をｙ
＝ｆ(x)で表した時、 下記の式によって求められる値を
μｍで表したものである。The above-mentioned surface roughness (Ra) refers to the centerline average roughness, and as shown in FIG. 6, a portion of the measurement length L is taken from the roughness curve in the direction of the centerline, and the extracted portion The centerline is the X axis, the vertical magnification direction is the Y axis, and the roughness curve is y.
= F (x), the value obtained by the following formula is expressed in μm.
【０００９】[0009]
【数１】 [Equation 1]
【００１０】尚、 従来のＤＩ絞り用材料の表面粗さは、
通常、最大が０.１μｍである。The surface roughness of the conventional DI diaphragm material is
Usually, the maximum is 0.1 μm.
【００１１】上記した荒さの鋼板表面とするため、鋼板
の圧延時に、圧延ロールの表面を研磨砥石で研磨して、
あるいはロール表面にショットブラスト法を用いて、ロ
ール表面粗度を荒らし、このロール表面の荒さを圧延時
に鋼板に転写する方法等が用いられる。あるいは、原材
の鋼板表面にニッケルメッキを施した後、表面を荒らし
たダルロールで調質圧延を行って、ニッケルメッキ表面
粗度を荒くしてもよい。In order to obtain a steel plate surface having the above-mentioned roughness, when rolling the steel plate, the surface of the rolling roll is ground with a grinding stone,
Alternatively, a method of roughening the surface roughness of the roll by using a shot blast method on the surface of the roll and transferring the roughness of the surface of the roll to a steel plate during rolling is used. Alternatively, the surface of the raw steel plate may be plated with nickel and then temper-rolled with a dull roll having a roughened surface to roughen the surface roughness of the nickel plating.
【００１２】[0012]
【作用】上記のように原材料である鋼板の表面粗度を荒
くして、該鋼板表面に均一の厚さでニッケルメッキを施
すと、電池用缶の表裏両面の粗度が原材料と同一程度に
荒くなる。また、ニッケルメッキを施した後にダルロー
ルで調質圧延した場合も同様に表面粗度が荒くなる。こ
のように表裏両面の粗度を荒くした状態で、潤滑油を塗
布すると、潤滑油との接触面積が増大すると共に、潤滑
油を保持する言わば油溜め部分が形成されることとな
り、潤滑油の保持能力を高めることが出来る。When the surface roughness of the raw material steel plate is roughened as described above and the surface of the steel plate is nickel-plated with a uniform thickness, the surface roughness of the front and back surfaces of the battery can becomes the same as the raw material. Get rough. In addition, when nickel plating is performed and temper rolling is performed with a dull roll, similarly, the surface roughness becomes rough. If the lubricant is applied in a state where the roughness of the front and back surfaces is rough in this way, the contact area with the lubricant increases and at the same time an oil sump portion for holding the lubricant is formed. The holding ability can be improved.
【００１３】よって、上記潤滑油が十分に塗布された状
態でＤＩ絞り加工の金型へと送られてくるため、該金型
のダイス及びパンチとの摩擦係数を低減して、これらダ
イス及びパンチの寿命を延ばすことが出来、生産性も向
上する。なお、上記ＤＩ絞り加工の工程においても、さ
らに潤滑油を塗油すれば一層ダイス及びパンチの寿命を
延ばすことができる。Therefore, since the lubricating oil is sufficiently applied to the die for DI drawing, the coefficient of friction between the die and the punch of the die is reduced, and the die and punch are reduced. The life of can be extended and productivity is improved. Even in the DI drawing process, if the lubricating oil is further applied, the life of the die and punch can be further extended.
【００１４】[0014]
【実施例】以下、本発明を図面に示す実施例により詳細
に説明する。図１は本発明に係わる電池用缶形成材料１
０の拡大断面図であり、Ｆｅ鋼板からなる原材１１の表
裏両面にニッケルメッキ層１２,１３を備えている。上
記原材１１は鋳造されたスラブ（鋳造片）を熱間圧延ロ
ールに通して所要厚さに圧延した後、冷間圧延ロールに
通して更に所要厚さに圧延しており、冷間圧延ロールで
圧延する時に原材１１の表裏両面を荒らしている。即
ち、冷間圧延ロール（図示せず）のロール表面を研磨材
で研磨してロール表面粗度（Ｒａ）を０.５〜１.０μｍ
としている。よって、該冷間圧延ロールにより圧延され
る時に表面粗度も転写され、原材１１の表裏両面の粗度
が０.５〜１.２μｍとなっている。The present invention will be described in detail below with reference to the embodiments shown in the drawings. FIG. 1 is a battery can forming material 1 according to the present invention.
It is an enlarged sectional view of No. 0, and nickel plating layers 12 and 13 are provided on both front and back surfaces of a raw material 11 made of an Fe steel plate. The raw material 11 is obtained by passing a cast slab (cast piece) through a hot rolling roll to a required thickness and then passing it through a cold rolling roll to a further required thickness. Both sides of the raw material 11 are roughened during rolling. That is, the roll surface of a cold rolling roll (not shown) is polished with an abrasive to obtain a roll surface roughness (Ra) of 0.5 to 1.0 μm.
I am trying. Therefore, the surface roughness is also transferred when the material is rolled by the cold rolling roll, and the roughness of the front and back surfaces of the raw material 11 is 0.5 to 1.2 μm.
【００１５】尚、実施例では、上記スラブは約２５０ｍ
ｍの板厚を有し、この約９００℃のスラブを７００℃の
熱間圧延で３.３ｍｍの板厚とし、ついで、常温の冷間
圧延で０.４０６ｍｍの板厚としている。In the embodiment, the slab has a length of about 250 m.
This slab having a thickness of about 900 ° C. is hot rolled at 700 ° C. to a thickness of 3.3 mm, and then cold rolled at room temperature to a thickness of 0.406 mm.
【００１６】上記のように、冷間圧延での圧延時に原材
１１の表裏両面の粗度を荒くしているため、この原材１
１の表裏両面に、厚さ０.５μｍ〜５μｍの均一な厚さ
でニッケルメッキ層１２,１３を設けても、ニッケルメ
ッキ層の表面も、即ち、電池用缶の形成材料１０の表裏
両面に０.５μｍ〜１.２μｍの荒さが生じている。As described above, since the roughness of the front and back surfaces of the raw material 11 is roughened during cold rolling, this raw material 1
Even if the nickel plating layers 12 and 13 having a uniform thickness of 0.5 μm to 5 μm are provided on both the front and back surfaces of No. 1, the surfaces of the nickel plating layers, that is, both the front and back surfaces of the material 10 for forming a battery can. Roughness of 0.5 μm to 1.2 μm occurs.
【００１７】上記缶形成材料１０は、コイル状とされて
加工工程へと送られ、加工工程で、図２に示すように、
コイルから巻き戻しながら前記ブランク工程、カッピン
グ工程、ＤＩ工程へと連続的に流される。上記ブランク
工程の前に、潤滑油塗布工程があり、該潤滑油塗布工程
では、缶形成材料１０の表裏両面に接触するようにフエ
ルト材１５,１５が配置されており、該フエルト材１５,
１５に潤滑油溜め１６より潤滑油２０が供給されてい
る。よって、フエルト材１５,１５に接触することによ
り缶形成材１０の表裏両面には潤滑油２０が塗布され
る。なお、軽粘度の潤滑油を使用する場合は、フェルト
材１５より手前の材料に直接滴下してもよい。The can forming material 10 is coiled and sent to a processing step, and in the processing step, as shown in FIG.
While being unwound from the coil, the blank process, the cupping process, and the DI process are continuously performed. Before the blanking step, there is a lubricating oil applying step. In the lubricating oil applying step, the felt materials 15, 15 are arranged so as to come into contact with both front and back surfaces of the can forming material 10, and the felt material 15,
Lubricating oil 20 is supplied from 15 to the lubricating oil sump 16. Therefore, the lubricating oil 20 is applied to both front and back surfaces of the can forming material 10 by coming into contact with the felt materials 15, 15. When using a low-viscosity lubricating oil, it may be dropped directly on the material before the felt material 15.
【００１８】缶形成材料１０の表裏両面は上記したよう
に、表面粗度Ｒａが０.５μｍ〜１.０μｍの荒さとなっ
ているため、言わば凹凸面になっており、図３に示すよ
うに、凹凸面となって表面積が増大している表裏両面に
潤滑油２０が塗布されると共に、凹部２１に潤滑油２０
が溜まることとなる。As described above, both the front and back surfaces of the can forming material 10 have surface roughness Ra of 0.5 μm to 1.0 μm, so that they are uneven so to speak. As shown in FIG. The lubricating oil 20 is applied to both the front and back surfaces, which have uneven surfaces and have an increased surface area, and the lubricating oil 20 is applied to the recess 21.
Will be accumulated.
【００１９】このように、缶形成材料１０の両面には十
分に潤滑油が供給され、かつ、保持されているため、カ
ッピング工程をへて、ＤＩ工程においても、まだ潤滑油
２０は十分に保持されている。よって、前記図５に示す
ＤＩ絞り金型のダイス２及びパンチ３との摺接面の摩耗
が潤滑油２０により低減され、ダイス及びパンチの寿命
を延ばすことが出来る。さらに、摩耗係数の低減によ
り、絞り工程のスピードアップを図ることも可能とな
る。As described above, since the lubricating oil is sufficiently supplied and held on both sides of the can forming material 10, the lubricating oil 20 is still sufficiently held even in the DI step after the cupping step. Has been done. Therefore, the wear of the sliding contact surface between the die 2 and the punch 3 of the DI drawing die shown in FIG. 5 is reduced by the lubricating oil 20, and the life of the die and the punch can be extended. Further, the reduction of the wear coefficient makes it possible to speed up the drawing process.
【００２０】上記のように潤滑性能を向上させることに
より、上記実施例の缶形成材料１０を用いてＤＩ絞り加
工で電池用缶を加工した場合、１日のＤＩ絞り加工数
（３０万個／１日）とした場合、４日でダイス２を取り
替えていたのが、６日で取り替えれば良くなり、ダイス
２の寿命を１.５倍とすることが出来た。When a can for a battery is processed by DI drawing using the can forming material 10 of the above embodiment by improving the lubricating performance as described above, the number of DI drawing processes per day (300,000 / 1 day), the die 2 had to be replaced in 4 days, but now it can be replaced in 6 days, and the life of the die 2 can be increased by 1.5 times.
【００２１】なお、本発明は上記実施例に限定されるも
のではなく、例えば、鋼板表面にニッケルメッキを施し
た後に、表面粗さを粗くしてもよい。The present invention is not limited to the above embodiment, and for example, the surface roughness may be roughened after nickel plating on the steel plate surface.
【００２３】すなわち、上記実施例のように冷間圧延の
際に鋼板の表面粗さを粗くすることなく、そのまま表裏
面にニッケルメッキを施す。そして、調質圧延の際に表
面粗さ（Ｒａ）が０.５μｍ〜１.２μｍのダルロールに
より調質圧延を行い、ニッケルメッキの表面粗さ（Ｒ
ａ）を０.５μｍ〜１.２μｍに荒くしてもよい。That is, the front and back surfaces of the steel sheet are directly plated with nickel without roughening the surface roughness of the steel sheet during cold rolling as in the above embodiment. Then, at the time of temper rolling, temper rolling is performed by a dull roll having a surface roughness (Ra) of 0.5 μm to 1.2 μm, and the surface roughness of the nickel plating (R
A) may be roughened to 0.5 μm to 1.2 μm.
【００２４】この場合も、上記実施例の場合と同様に、
表面を荒くしたことにより、潤滑油の塗布面積が増大
し、かつ、凹凸が油溜まりとして機能するため、潤滑油
の塗布後ブランク工程等を経てＤＩ絞り工程に達した際
にも潤滑油が十分に塗布された状態にありダイス及びパ
ンチと摺動面の摩擦係数を低減することができる。Also in this case, as in the case of the above embodiment,
By roughening the surface, the lubricating oil application area increases and the unevenness functions as an oil reservoir, so the lubricating oil is sufficient even when it reaches the DI drawing step after the blanking step after applying the lubricating oil. It is in the state of being coated on the die, and the friction coefficient between the die and the punch and the sliding surface can be reduced.
【００２１】[0021]
【発明の効果】以上の説明より明らかなように、本発明
に係わるＤＩ絞り加工される電池用缶の形成材料では、
その表面粗度を従来の５〜１０倍程度荒らくしているた
め、潤滑油の塗布面積が増大すると共に、荒らしたこと
により生じる凹凸により潤滑油の溜まりができ、潤滑油
の保持性能が向上する。よって、缶形成材料の表面に潤
滑油を塗布した後、ブランク工程、カッピング工程をへ
てＤＩ深絞り工程に達した時も、まだ表面には十分に潤
滑油が塗布された状態にあり、ＤＩ深絞り加工金型のダ
イス及びパンチとの摺動面の摩擦係数を低減することが
出来る。As is apparent from the above description, in the material for forming a battery can that is DI drawn according to the present invention,
Since the surface roughness is roughened about 5 to 10 times as much as the conventional one, the application area of the lubricating oil is increased and the unevenness caused by the roughening allows the lubricating oil to accumulate, improving the lubricating oil holding performance. To do. Therefore, after the lubricant is applied to the surface of the can forming material, even when the DI deep drawing step is reached through the blanking step and the cupping step, the surface is still sufficiently coated with the lubricating oil. It is possible to reduce the coefficient of friction of the sliding surface of the deep drawing die with the die and punch.
【００２２】その結果、ダイス及びパンチの寿命を延ば
すことができ、しかも摩擦係数の低減により、ＤＩ深し
ぼり加工のスピードアップを図る事が出来る等の種々の
利点を有するものである。As a result, there are various advantages such that the life of the die and punch can be extended, and the friction coefficient can be reduced to speed up DI deep pressing.
【図１】 本発明に係わる電池用缶形成材料の拡大断面
図である。FIG. 1 is an enlarged cross-sectional view of a battery can-forming material according to the present invention.
【図２】 上記電池用缶形成材料に対する潤滑油の塗布
工程を示す概略図である。FIG. 2 is a schematic view showing a step of applying a lubricating oil to the above-mentioned battery can forming material.
【図３】 潤滑油が塗布された状態の電池用缶形成材料
の拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a battery can forming material with a lubricating oil applied.
【図４】 ＤＩ深絞り加工による電池用缶の加工工程を
示す図面である。FIG. 4 is a view showing a process of processing a battery can by DI deep drawing.
【図５】 ＤＩ深絞り金型における加工状態を示す拡大
断面図である。FIG. 5 is an enlarged cross-sectional view showing a processed state in a DI deep drawing die.
【図６】 表面粗度（Ｒａ）の定義を説明するための図
面である。FIG. 6 is a diagram for explaining the definition of surface roughness (Ra).
１ カップ ２ ダイス ３ パンチ １０ 電池用缶形成材料 １１ 原材 １２,１３ ニッケルメッキ層 ２０ 潤滑油 1 Cup 2 Dice 3 Punch 10 Battery Can Forming Material 11 Raw Material 12,13 Nickel Plating Layer 20 Lubricating Oil
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年８月２５日[Submission date] August 25, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Name of item to be corrected] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００３】上記ＤＩ絞り加工を用いる場合、カップを
深絞りする工程で、周壁のみを引き伸ばし加工するた
め、例えば、底壁の板厚０.４ｍｍで、 周壁の板厚を０.
１５ｍｍまで絞ることが可能で、板厚に対するしごき率
（減少率）は従来の２倍強とすることが出来る。このよ
うに、周壁を薄肉とすると中空部の容積が大となり、充
填剤が増加して電池特性を向上させることが出来る。ま
た、加工工程において、カップを成形した後、一度の深
絞りの工程で所要の深さとすることができ、加工工程の
大幅な減少、それに伴う製造コストの低減を図ることが
出来る利点がある。When the above-mentioned DI drawing is used, since only the peripheral wall is stretched in the step of deep-drawing the cup, the thickness of the bottom wall is 0.4 mm, and the thickness of the peripheral wall is 0.4 mm.
It can be squeezed to 15 mm, and the ironing rate (reduction rate) with respect to the plate thickness can be more than twice the conventional value. As described above, when the peripheral wall is made thin, the volume of the hollow portion becomes large, the amount of the filler increases, and the battery characteristics can be improved. Further, in the processing step, after forming the cup, it is possible to obtain the required depth in a single deep drawing step, which is advantageous in that the number of processing steps can be significantly reduced and the manufacturing cost can be reduced accordingly.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００９】[0009]
【数１】 [Equation 1]
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１０】尚、 従来のＤＩ絞り用材料の表面粗さは、
通常、最大Ｒａが０.１μｍである。The surface roughness of the conventional DI diaphragm material is
Usually, the maximum Ra is 0.1 μm.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１８[Correction target item name] 0018
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１８】缶形成材料１０の表裏両面は上記したよう
に、表面粗度Ｒａが０.５μｍ〜１.２μｍの荒さとなっ
ているため、言わば凹凸面になっており、図３に示すよ
うに、凹凸面となって表面積が増大している表裏両面に
潤滑油２０が塗布されると共に、凹部２１に潤滑油２０
が溜まることとなる。As described above, the front and back surfaces of the can forming material 10 have a surface roughness Ra of 0.5 μm to 1.2 μm so that they are uneven so to speak, as shown in FIG. The lubricating oil 20 is applied to both the front and back surfaces, which have uneven surfaces and have an increased surface area, and the lubricating oil 20 is applied to the recess 21.
Will be accumulated.
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１９[Correction target item name] 0019
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１９】このように、缶形成材料１０の両面には十
分に潤滑油が供給され、かつ、保持されているため、カ
ッピング工程をへて、ＤＩ工程においても、まだ潤滑油
２０は十分に保持されている。よって、前記図５に示す
ＤＩ絞り金型のダイス２及びパンチ３との摺接面の摩耗
が潤滑油２０により低減され、ダイス及びパンチの寿命
を延ばすことが出来る。さらに、摩擦係数の低減によ
り、絞り工程のスピードアップを図ることも可能とな
る。As described above, since the lubricating oil is sufficiently supplied and held on both sides of the can forming material 10, the lubricating oil 20 is still sufficiently held even in the DI step after the cupping step. Has been done. Therefore, the wear of the sliding contact surface between the die 2 and the punch 3 of the DI drawing die shown in FIG. 5 is reduced by the lubricating oil 20, and the life of the die and the punch can be extended. Further, by reducing the friction coefficient, it is possible to speed up the drawing process.
【手続補正６】[Procedure correction 6]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図４[Name of item to be corrected] Figure 4
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図４】 [Figure 4]
Claims (4)
(Ｄrawing and Ｉroning)絞り加工で形成するために用
いるメッキ鋼板であって、 表面粗さ（Ｒａ）を０.５μｍ〜１.２μｍと荒くしてい
ることを特徴とする電池用缶の形成材料。1. A cylindrical battery can having an opening at one end is DI.
(Drawing and Ironing) A plated steel sheet used for forming by drawing, which has a rough surface roughness (Ra) of 0.5 μm to 1.2 μm.
連続シートからなることを特徴とする請求項１記載の形
成材料。2. The forming material according to claim 1, wherein the plated steel sheet is a continuous sheet wound in a coil shape.
池用缶とするメッキ鋼板の製造方法であって、 原材の鋼板表面を、表面粗さ（Ｒａ）を０.５μｍ〜１.
２μｍと荒らくし、その表面に、ニッケルメッキ層を均
一な厚さで施してニッケルメッキ表面粗さも上記鋼板表
面と同様に荒くしていることを特徴とする電池用缶の形
成材料の製造方法。3. A method for producing a plated steel sheet, which is a cylindrical battery can having an opening at one end by DI drawing, wherein the surface roughness (Ra) of the raw steel sheet surface is 0.5 μm to 1.
A method for manufacturing a material for forming a battery can, characterized in that the surface is roughened to 2 μm, and a nickel plating layer is applied to the surface with a uniform thickness to roughen the nickel plating surface roughness similarly to the steel plate surface. .
池用缶とするメッキ鋼板の製造方法であって、 原材の鋼板表面にニッケルメッキを施した後、表面を荒
らしたダルロールで調質圧延を行って、ニッケルメッキ
表面粗さ（Ｒａ）を０.５μｍ〜１.２μｍと荒らくして
いることを特徴とする電池用缶の形成材料の製造方法。4. A method for producing a plated steel sheet for forming a cylindrical battery can having an opening at one end by DI drawing, which comprises subjecting a steel sheet surface of a raw material to nickel plating, followed by tempering with a dull roll having a roughened surface. A method for producing a material for forming a battery can, which comprises rolling to roughen a nickel plating surface roughness (Ra) to 0.5 μm to 1.2 μm.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5134988A JPH06346282A (en) | 1993-06-04 | 1993-06-04 | Forming material for can for battery and its production |
| DE69404765T DE69404765T2 (en) | 1993-06-04 | 1994-01-27 | Battery container, sheet metal for shaping the battery container and method for the production of the sheet metal |
| EP94101200A EP0629009B1 (en) | 1993-06-04 | 1994-01-27 | Battery can, sheet for forming battery can, and method for manufacturing sheet |
| US08/187,000 US5576113A (en) | 1993-06-04 | 1994-01-27 | Battery can, sheet for forming battery can, and method for manufacturing sheet |
| ES94101200T ES2106376T3 (en) | 1993-06-04 | 1994-01-27 | BATTERY GLASS; SHEET TO FORM A BATTERY GLASS AND METHOD TO MAKE SUCH SHEET. |
| US08/373,438 US5840441A (en) | 1993-06-04 | 1995-01-17 | Battery can, sheet for forming battery can, and method for manufacturing sheet |
| US08/423,721 US5603782A (en) | 1993-06-04 | 1995-04-18 | Battery can, sheet for forming battery can, and method for manufacturing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5134988A JPH06346282A (en) | 1993-06-04 | 1993-06-04 | Forming material for can for battery and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06346282A true JPH06346282A (en) | 1994-12-20 |
Family
ID=15141309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5134988A Pending JPH06346282A (en) | 1993-06-04 | 1993-06-04 | Forming material for can for battery and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06346282A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11238491A (en) * | 1998-02-20 | 1999-08-31 | Toshiba Battery Co Ltd | Battery container |
| US6126759A (en) * | 1996-02-08 | 2000-10-03 | Nkk Corporation | Steel sheet for 2-piece battery can having excellent formability, anti secondary work embrittlement and corrosion resistance |
| JP2001351583A (en) * | 2000-06-08 | 2001-12-21 | Fdk Corp | Alkaline battery |
| JP2005149986A (en) * | 2003-11-18 | 2005-06-09 | Sony Corp | Outer can for battery and battery |
| KR100772814B1 (en) * | 2005-01-07 | 2007-11-01 | 주식회사 엘지화학 | Case for batteries and preparation method thereof |
| WO2010143374A1 (en) * | 2009-06-09 | 2010-12-16 | 東洋鋼鈑株式会社 | Nickel-plated steel sheet and process for producing battery can using the nickel-plated steel sheet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57161087A (en) * | 1981-03-30 | 1982-10-04 | Kishimoto Akira | Base plate for tin electroplated steel plate |
| JPS60180058A (en) * | 1984-02-28 | 1985-09-13 | Matsushita Electric Ind Co Ltd | Manufacture of battery and its can |
| JPH03107475A (en) * | 1989-09-20 | 1991-05-07 | Nippon Steel Corp | Steel sheet for di can having superior suitability to di forming and rendering superior white printability to outside of can |
-
1993
- 1993-06-04 JP JP5134988A patent/JPH06346282A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57161087A (en) * | 1981-03-30 | 1982-10-04 | Kishimoto Akira | Base plate for tin electroplated steel plate |
| JPS60180058A (en) * | 1984-02-28 | 1985-09-13 | Matsushita Electric Ind Co Ltd | Manufacture of battery and its can |
| JPH03107475A (en) * | 1989-09-20 | 1991-05-07 | Nippon Steel Corp | Steel sheet for di can having superior suitability to di forming and rendering superior white printability to outside of can |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6126759A (en) * | 1996-02-08 | 2000-10-03 | Nkk Corporation | Steel sheet for 2-piece battery can having excellent formability, anti secondary work embrittlement and corrosion resistance |
| JPH11238491A (en) * | 1998-02-20 | 1999-08-31 | Toshiba Battery Co Ltd | Battery container |
| JP2001351583A (en) * | 2000-06-08 | 2001-12-21 | Fdk Corp | Alkaline battery |
| JP2005149986A (en) * | 2003-11-18 | 2005-06-09 | Sony Corp | Outer can for battery and battery |
| JP4543662B2 (en) * | 2003-11-18 | 2010-09-15 | ソニー株式会社 | battery |
| KR100772814B1 (en) * | 2005-01-07 | 2007-11-01 | 주식회사 엘지화학 | Case for batteries and preparation method thereof |
| US7927733B2 (en) | 2005-01-07 | 2011-04-19 | Lg Chem, Ltd. | Case for batteries and preparation method thereof |
| WO2010143374A1 (en) * | 2009-06-09 | 2010-12-16 | 東洋鋼鈑株式会社 | Nickel-plated steel sheet and process for producing battery can using the nickel-plated steel sheet |
| US8734961B2 (en) | 2009-06-09 | 2014-05-27 | Toyo Kohan Co., Ltd. | Nickel-plated steel sheet and process for producing battery can using the nickel-plated steel sheet |
| JP5570078B2 (en) * | 2009-06-09 | 2014-08-13 | 東洋鋼鈑株式会社 | Ni-plated steel sheet and battery can manufacturing method using the Ni-plated steel sheet |
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