JPS6013296B2 - Manufacturing method of capacitor case with explosion-proof valve - Google Patents
Manufacturing method of capacitor case with explosion-proof valveInfo
- Publication number
- JPS6013296B2 JPS6013296B2 JP11973678A JP11973678A JPS6013296B2 JP S6013296 B2 JPS6013296 B2 JP S6013296B2 JP 11973678 A JP11973678 A JP 11973678A JP 11973678 A JP11973678 A JP 11973678A JP S6013296 B2 JPS6013296 B2 JP S6013296B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- explosion
- capacitor case
- manufacturing
- proof valve
- 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.)
- Expired
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は防爆弁付コンデンサケースの製造方法に関する
もので、特に防爆部の弁厚のばらつきの少ないケースを
効率よく生産することを目的としたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a capacitor case with an explosion-proof valve, and is particularly aimed at efficiently producing a case with less variation in the valve thickness of the explosion-proof part.
電解コンデンサ用アルミニウムケースの製造工程は、素
材板を深絞りして有底円筒状に加工する深絞り工程と、
所定の長さに切断する切断工程の２工程により製造され
る。The manufacturing process for aluminum cases for electrolytic capacitors involves a deep drawing process in which a material plate is deep drawn into a cylindrical shape with a bottom.
It is manufactured in two steps: cutting to a predetermined length.
そして、ケース底面部の一部を薄くした防嬢弁付コンデ
ンサケースを製造する場合、従来の製造方法は第１図に
示すように、深絞り工程においてプレス機の押型村１又
は受型２のいずれか一方、あるいは両方に突起３を設け
、（図は受型２に設けた場合を示す）このプレス機に素
材板４を入れ深絞りをして防爆弁５を有するコンデンサ
ケース６を得ていた。When manufacturing a capacitor case with a droplet prevention valve in which a part of the bottom of the case is thinned, the conventional manufacturing method is as shown in Fig. 1. A protrusion 3 is provided on one or both sides (the figure shows the case where it is provided on a receiving mold 2), and a material plate 4 is placed in this press and deep drawn to obtain a capacitor case 6 having an explosion-proof valve 5. Ta.
そして、切断工程においてはコンデンサケース６を所定
の長さに切断する作業のみが行なわれていた。この素材
板４をコンデンサケース６に絞る工程で同時に防嬢弁６
を形成する従来方法では、素材板４の厚さ、硬度のばら
つさもこより防懐弁５の性能を左右する弁厚がばらつき
、その誤差を士４０仏仇以下に押さえる事が困難で、防
爆機能を果さないコンデンサケ−ス６が製造されてしま
う恐れがあった。In the cutting process, only the work of cutting the capacitor case 6 into a predetermined length was performed. At the same time in the process of squeezing this material plate 4 into the capacitor case 6, the prevention valve 6 is
In the conventional method for forming explosion-proof valves, the valve thickness, which affects the performance of the anti-bulb valve 5, varies due to variations in the thickness and hardness of the material plate 4, and it is difficult to suppress the error to less than 40 mm. There was a risk that a capacitor case 6 that would not function would be manufactured.
更にこれに加えて深絞り工程では切断工程に比べて大き
なプレスを必要とし、プレス作業を開始してプレスの温
度が一定になるまで（例えば直径４仇肌のケース製造の
場合で約３０分）の弁厚のばらつきが大きく、プレス温
度が一定になるまでの製品は廃棄しなければならず生産
効率が極めて悪いという欠点があった。本発明は従釆の
このような欠点を改良し、弁厚のばらつきの少ないコン
デンサケースを製造する方法に関するものである。Furthermore, in addition to this, the deep drawing process requires a larger press than the cutting process, and it takes about 30 minutes from the start of the press work until the temperature of the press becomes constant (for example, in the case of manufacturing a case with a diameter of 4 mm). The disadvantage was that there was a large variation in valve thickness, and that products had to be discarded until the press temperature became constant, resulting in extremely low production efficiency. The present invention is directed to a method of manufacturing a capacitor case with less variation in valve thickness by improving such drawbacks of the secondary structure.
本発明の防爆弁付コンデンサケースの製造方法は、まず
第２図ａのように深絞り工程において、プレス押型杵１
と受型２の底面に突起がない平らな型により底面部が平
らな防膝弁なしコンデンサケース７を製造し、次に第２
図ｂ，ｃ，ｄに示す切断工程において、押型村８又は受
型９のいずれか一方もしくは両方に突起３を設けた切断
プレスにより（図は受型９に突起３を設けたものを示す
）防嬢弁なしコンヂンサケース７を所定の長さにバイト
１０で切断する際に防爆なしコンデンサケース７の底面
に防嬢弁５が形成されるようにしたものである。In the method of manufacturing a capacitor case with an explosion-proof valve of the present invention, first, as shown in FIG.
A capacitor case 7 without a knee valve with a flat bottom part is manufactured using a flat mold with no protrusions on the bottom surface of the receiving mold 2, and then a second mold is manufactured.
In the cutting process shown in Figures b, c, and d, a cutting press is used in which projections 3 are provided on either or both of the pressing mold village 8 or the receiving mold 9 (the figure shows the receiving mold 9 provided with the projections 3). When cutting the condenser case 7 without an explosion-proof valve into a predetermined length with a cutting tool 10, a preventive valve 5 is formed on the bottom surface of the condenser case 7 without an explosion-proof valve.
第３図は本発明の方法と、従来の方法とで防嬢弁付コン
デンサケースを製造し、プレス運転開始より５分毎に製
品を取り出してその弁厚を測定しその分布を表したグラ
フで、この時コンデンサケースの直径３５側、弁厚は１
２０だのを設定値とした。Figure 3 is a graph showing the distribution of capacitor cases with protection valves manufactured using the method of the present invention and the conventional method, and the valve thicknesses measured by taking out the products every 5 minutes from the start of press operation. , at this time, the diameter 35 side of the capacitor case, the valve thickness is 1
The set value was 20.
このグラフからも明らかなように、本発明の方法（グラ
フ中○）は従来の方法（０）に比べ弁厚のバラッキが極
めて小さく（十２０仏机、一１０仏肌）かつプレス運転
開始時より一定した弁淳の防嬢弁付ケースが得られた。As is clear from this graph, the method of the present invention (○ in the graph) has extremely small variations in valve thickness (120 pieces, 110 pieces) compared to the conventional method (0), and when the press operation starts. A more consistent case with Benjun's defense valve was obtained.
このように本発明の方法は、既に深絞りが完了した防爆
弁なしコンデンサケース７に切断工程で防嬢弁５を成型
するために、ケース素材の厚さや、硬度のばらつきが弁
厚に影響し‘こくい。また、切断工程のプレスは深絞り
工程に比べて小型ですみ、プレス温度が上昇せず最初か
ら弁厚の一定したコンデンサケースが得られ、弁淳の一
定したコンデンサケースを効率よく生産することができ
る。In this way, the method of the present invention molds the breakout valve 5 in the cutting process into the capacitor case 7 without an explosion-proof valve that has already been deep drawn, so variations in the thickness and hardness of the case material do not affect the valve thickness. 'Kokui. Additionally, the press used in the cutting process is smaller than that used in the deep drawing process, and the press temperature does not rise, making it possible to obtain capacitor cases with a constant valve thickness from the beginning, making it possible to efficiently produce capacitor cases with a constant valve thickness. can.
第１図ａ〜ｄは、深絞り工程において防爆弁を併せて形
成する工程示す部分断面図、第２図ａは本発明における
深絞り工程を示す部分断面図、ｂ〜ｄは本発明における
切断工程に示す部分断面図、第３図は防嬢弁の弁厚の分
布を示すグラフである。
１・・・…深絞り押型杵、２・・…・深絞り受型、３…
…突起、４…・・・素材板、５・…・・防嬢弁、６・・
・・・・コンデンサケース、７・・・・・・防嬢弁なし
コンデンサケース、８・・・・・・切断押型杵、９・…
・・切断受型、１０””“バイト。
第１図
第２図
第３図Figures 1 a to d are partial cross-sectional views showing the process of forming an explosion-proof valve in the deep drawing process, Figure 2 a is a partial cross-sectional view showing the deep drawing process in the present invention, and b to d are cross-sectional views in the present invention. FIG. 3, which is a partial sectional view showing the process, is a graph showing the distribution of the valve thickness of the stop valve. 1...Deep drawing punch, 2...Deep drawing receiving mold, 3...
...Protrusion, 4...Material plate, 5...Protrusion valve, 6...
... Capacitor case, 7 ... Capacitor case without break-proof valve, 8 ... Cutting punch, 9 ...
...Cut-off type, 10"""bit. Fig. 1 Fig. 2 Fig. 3
Claims (1)
の長さに切断する切断工程よりなるコンデンサケースの
製造方法において、切断工程で用いるプレス押型杆又は
受型の底部のいずれか一方、あるいは両方に突起を設け
て切断工程でコンデンサケース底面に防爆弁を成型する
ことを特徴とする防爆弁付コンデンサケースの製造方法
。1. In a capacitor case manufacturing method that includes a deep drawing process in which a base plate is shaped into a cylindrical shape with a bottom, and a cutting process in which it is cut into a predetermined length, either the bottom of the pressing rod or the receiving mold used in the cutting process A method for manufacturing a capacitor case with an explosion-proof valve, characterized in that a protrusion is provided on one or both sides and an explosion-proof valve is formed on the bottom of the capacitor case in a cutting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11973678A JPS6013296B2 (en) | 1978-09-28 | 1978-09-28 | Manufacturing method of capacitor case with explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11973678A JPS6013296B2 (en) | 1978-09-28 | 1978-09-28 | Manufacturing method of capacitor case with explosion-proof valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5546538A JPS5546538A (en) | 1980-04-01 |
| JPS6013296B2 true JPS6013296B2 (en) | 1985-04-06 |
Family
ID=14768848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11973678A Expired JPS6013296B2 (en) | 1978-09-28 | 1978-09-28 | Manufacturing method of capacitor case with explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6013296B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022018863A1 (en) | 2020-07-22 | 2022-01-27 | 日本電信電話株式会社 | High frequency package |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6038808A (en) * | 1983-08-11 | 1985-02-28 | 岡本 良数 | Form of inner surface etching case of cathode aluminum of small-sized aluminum electrolytic condenser and method of producing same |
| JPS6042810A (en) * | 1983-08-19 | 1985-03-07 | 株式会社藤沢電器製作所 | Small-sized aluminum electrolytic condenser |
| JP4894357B2 (en) | 2006-06-02 | 2012-03-14 | 株式会社豊田自動織機 | Compressor |
-
1978
- 1978-09-28 JP JP11973678A patent/JPS6013296B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022018863A1 (en) | 2020-07-22 | 2022-01-27 | 日本電信電話株式会社 | High frequency package |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5546538A (en) | 1980-04-01 |
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