JPH01178325A - Forming method for can barrel of two-piece can - Google Patents
Forming method for can barrel of two-piece canInfo
- Publication number
- JPH01178325A JPH01178325A JP63001289A JP128988A JPH01178325A JP H01178325 A JPH01178325 A JP H01178325A JP 63001289 A JP63001289 A JP 63001289A JP 128988 A JP128988 A JP 128988A JP H01178325 A JPH01178325 A JP H01178325A
- Authority
- JP
- Japan
- Prior art keywords
- barrel
- piece
- punch
- forming
- wrinkles
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000010409 ironing Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000037303 wrinkles Effects 0.000 abstract description 19
- 229910000831 Steel Inorganic materials 0.000 abstract description 18
- 239000010959 steel Substances 0.000 abstract description 18
- 238000005452 bending Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 15
- 239000003973 paint Substances 0.000 description 11
- 239000007769 metal material Substances 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 239000011253 protective coating Substances 0.000 description 4
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 2
- 235000014171 carbonated beverage Nutrition 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000005029 tin-free steel Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241000272814 Anser sp. Species 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009503 electrostatic coating Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ツーピース缶用缶胴の成形法に関するもので
、より詳細には耐圧性に潰れた底形状を有するツーピー
ス缶用缶胴を強度の大きい金属素材を用いて製造する方
法に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a method for forming a can body for a two-piece can, and more specifically, the present invention relates to a method for molding a can body for a two-piece can, and more specifically, it relates to a method for molding a can body for a two-piece can having a collapsed bottom shape for pressure resistance. The present invention relates to a manufacturing method using a metal material having a large size.
（従来の技術）
金ｇ＆素材をポンチとダイスとの間で絞り加工、或は更
にしごき加工に賦して得られる缶体は１缶胴部及び缶胴
部と缶胴部との接続部に継目がなく、外観が良好で、底
蓋の巻締及び継目形成などの操作が不要であり、また缶
胴側壁部が薄肉化されていて、金属素材の量が少なくて
よい等の利点を有することから、飲料缶詰等の用途に広
く使用されている。(Prior art) A can body obtained by drawing gold and raw materials between a punch and a die, or further ironing the can body, and the joint between the can bodies and the can bodies. There are no seams, the appearance is good, there is no need to perform operations such as seaming the bottom cover and forming seams, and the side wall of the can body is thinner, so it has the advantage of requiring less metal material. Therefore, it is widely used in applications such as canned beverages.
このようなツーピース缶は、ビール、炭酸飲料等の自生
圧力を有する内容物や、窒素充填缶詰等の用途に使用さ
れることから、耐圧性能が要求され、特に缶底部のバッ
クリングを防止するために、底部の外側から中心に向け
て、外周側台錘部分、突起部（缶底ラジアス部）、内周
台錘部分及びこれに滑らかに接続されるドーム部を形成
させることが一般に行われている。These two-piece cans are used for contents that have their own pressure, such as beer and carbonated drinks, and for nitrogen-filled canned goods, so pressure-resistant performance is required, especially to prevent buckling at the bottom of the can. Generally, from the outside of the bottom toward the center, an outer periphery weight part, a protrusion (can bottom radius part), an inner periphery weight part, and a dome part smoothly connected thereto are formed. There is.
（発明が解決しようとする問題点）
近来、嗜好の変化により、炭酸飲料やビール等の内容品
においても、単位容積当りの炭酸ガスボリュームの比率
の高いものが好まれる傾向があり、窒素充填缶詰の用途
においても、充填性の容易さや保存性の点から窒素ボリ
ュームの大きいものが望まれており、ツーピース缶用缶
胴に要求される耐圧性も、３ Ｋｇ／ｃｍ２（ゲージ）
以上、特に６Ｋｇ／ｃｍ２ （ゲージ）以上の高いレベ
ルに達している。(Problem to be solved by the invention) In recent years, due to changes in tastes, there has been a tendency to prefer products with a high carbon dioxide volume per unit volume, such as carbonated drinks and beer. 2-piece can bodies require a high nitrogen volume for ease of filling and storage stability, and the pressure resistance required for two-piece can bodies is 3 Kg/cm2 (gauge).
In particular, it has reached a high level of 6Kg/cm2 (gauge) or more.
ツーピース缶用缶胴の耐圧性、特に底部の耐圧性を向上
させるためには、引張り強度及び厚みの大きい金属素材
を用いること、及び前述した缶底の周状突起部（缶底ラ
ジアス部）の曲率半径（Ｒ）を小さくすることが有効で
あるが、実際の缶底部の成形に際して、高強度材料を使
用する場合には１缶底の外周合評部分にしわが発生する
傾向が著しく大となり、外観不良を生じるばかりではな
く、強いて成形操作を続行すると、加工部（ドーム部）
への材料供給が不十分となって、エツジ切れ等を生じる
ことになる。In order to improve the pressure resistance of the can body for two-piece cans, especially the pressure resistance of the bottom, it is necessary to use a metal material with high tensile strength and thickness, and to improve the circumferential protrusion of the can bottom (can bottom radius) mentioned above. It is effective to reduce the radius of curvature (R), but when high-strength materials are used in the actual molding of can bottoms, there is a significant tendency for wrinkles to occur on the outer circumference of the bottom of a can, resulting in poor appearance. Not only will defects occur, but if you force the molding operation to continue, the processed part (dome part)
Insufficient material supply will result in edge breakage, etc.
また、缶底の周状突起部の先端の自律半径（Ｒ，）を小
さくしようとすると、内周台錘部分でやはり材料切れを
生じやすくなる。Furthermore, if an attempt is made to reduce the autonomous radius (R,) of the tip of the circumferential protrusion on the can bottom, material breakage is likely to occur at the inner circumference weight portion.
従って、本発明の目的は、高強度金属素材を用いて、耐
圧性に優れたツーピース缶用缶胴を成形するに際し生ず
る前記欠点を解消したツーピース缶用缶胴の成形法を提
供するにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for molding a two-piece can body that eliminates the aforementioned drawbacks that occur when molding a two-piece can body with excellent pressure resistance using a high-strength metal material.
本発明の他の目的は、優れた耐圧強度及び耐バツクリン
グ性を有するツーピース缶用缶胴を、しわや材料切れの
発生を抑制しつつ、良好な成形作業性を持って製造し得
る方法を提供するにある。Another object of the present invention is to provide a method for manufacturing a two-piece can body having excellent compressive strength and buckling resistance while suppressing the occurrence of wrinkles and material breakage and having good molding workability. There is something to do.
（問題点を解決するための手段）
本発明によれば、厚みが０．Ｏｌ乃至０．５ｍｍで且つ
引張り強度が３０ Ｋｇ／ ａｍ２以上の金属板を絞り
加工或は絞り−しごき加工に賦して平底を有する缶胴に
成形する工程と、最終缶胴底部の外周側台錘部分及び突
起部分に対応する形状を有する筒状パンチ及び支持リン
グで前記缶胴の底部を支持しながら該筒状パンチの内径
よりもやや小さい外径を有するドーミングダイと噛み合
せて底部の絞り成形を行うことを特徴とするツーピース
缶用缶胴の成形法が提供される。(Means for solving the problem) According to the present invention, the thickness is 0. The process of forming a metal plate with a diameter of 0.5 mm and a tensile strength of 30 Kg/am2 or more into a can body with a flat bottom by subjecting it to drawing or drawing-iron processing, and forming the outer periphery of the final can body bottom. The bottom of the can body is supported by a cylindrical punch having a shape corresponding to the weight portion and the protruding portion, and a support ring, and the bottom is drawn by engaging with a doming die having an outer diameter slightly smaller than the inner diameter of the cylindrical punch. A method for forming a can body for a two-piece can is provided.
本発明によれば更に、底部に、水平面からの平均傾斜角
度（α）が１乃至８０度の外周側台錘部分、外周側台錘
部分からの突出寸法（ｈ）が０乃至５ｍｍで且つ先端部
の曲率半径（Ｒ）が０．１乃至３ＩＩ１１である突起部
分、突起部分から急激に立上った立上り部分及び立上り
部分から滑らかに接続されたドーム部から成る底形状を
形成させることを特徴とするツーピース缶用缶胴が提供
される。According to the present invention, the bottom part further includes an outer platform weight portion having an average inclination angle (α) from the horizontal plane of 1 to 80 degrees, a protrusion dimension (h) from the outer circumferential platform weight portion of 0 to 5 mm, and a tip. It is characterized by forming a bottom shape consisting of a protruding portion having a radius of curvature (R) of 0.1 to 3II11, a rising portion rising abruptly from the protruding portion, and a dome portion smoothly connected to the rising portion. A can body for a two-piece can is provided.
更に、底部に、水平面からの平均傾斜角度（α）が、ｌ
乃至８０度の外周側台錘部分を内方円弧状に形成させる
部分、外周側台錘部分を内方円弧状に形成させる部分か
らの突出寸法（ｈ）がＯ乃至５ｍｍで且つ先端部曲率半
径（Ｒ）が０．１乃至３ＩＩ１１である突起部分、突起
部分から急激に立上った立上り部分及び立上り部分から
滑らかに接続されたドーム部から成る底形状を形成させ
ることを特徴とするツーピース缶用缶胴が提供される。Furthermore, at the bottom, the average inclination angle (α) from the horizontal plane is l
The protrusion dimension (h) from the part where the outer peripheral platform weight part of 80 degrees is formed into an inward circular arc shape, the protrusion dimension (h) from the part where the outer peripheral side platform weight part is formed into an inward circular arc shape is O to 5 mm, and the radius of curvature of the tip part A two-piece can characterized by forming a bottom shape consisting of a protruding portion in which (R) is 0.1 to 3II11, a rising portion that rises suddenly from the protruding portion, and a dome portion that is smoothly connected to the rising portion. A can body is provided.
（作 用）
本発明によるツーピース缶用缶胴の全体の構造を示す第
１図において、この缶胴１は全体として２で示す筒状の
側壁部２と全体として３で示す缶底部３とから成ってい
る。側壁部２の上部には所望により絞り込まれた１段或
は多段のネック部４を介して、缶Ｍ（図示せず）との巻
締のためのフランジ部５が設けられている０缶胴側壁部
２の側面及び側壁部２と缶底部３とのａ線部６には−切
継目が存在しないことが理解されるべきである。(Function) In FIG. 1 showing the overall structure of the can body for a two-piece can according to the present invention, the can body 1 is comprised of a cylindrical side wall portion 2 generally designated by 2 and a can bottom portion 3 generally designated by 3. It has become. A 0-can body is provided with a flange portion 5 on the upper side of the side wall portion 2 for tightening with a can M (not shown) via a one-stage or multi-stage neck portion 4 narrowed as desired. It should be understood that there is no -cut seam at the side surface of the side wall 2 and at the a-line section 6 between the side wall 2 and the can bottom 3.
缶底部３の断面構造を拡大して示す第２図において、本
発明による缶胴底部は、水平面からの平均傾斜角度（α
）が１乃至８０度の外周側台錘部分１０、外周側台錘部
分からの外方への突出寸法（ｈ）がＯ乃至５ｍｍで且つ
先端部１１の曲・率半径（Ｒ）が０．１乃至３１鵬であ
る突起部分１２、前記突起部分から急激に立上った立上
り部分（内周側台錐部分）１３．及この立上り部分から
滑らかに接続されたドーム部１４から成っている。In FIG. 2, which shows an enlarged cross-sectional structure of the can bottom 3, the can bottom according to the present invention has an average inclination angle (α
) is 1 to 80 degrees, the outward protrusion dimension (h) from the outer peripheral platform weight part is 0 to 5 mm, and the radius of curvature (R) of the tip 11 is 0. 1 to 31, a protruding portion 12, a rising portion (inner periphery frustum portion) 13 that rises suddenly from the protruding portion; It consists of a dome part 14 that is smoothly connected to the rising part.
本発明によれば、このような底形状のツーピース缶用缶
胴の成形に際して、厚みが０．Ｏｌ乃至０．５ｍｍ、特
に０．１０乃至０．２０ｍｍで且つ引張り強度が３０Ｋ
ｇ７１１１２以上、特に５０乃至８０Ｋｇ／腸層２の高
強度薄板鋼板を用いることが第一の特徴である。ツーピ
ース缶用缶胴の底部における耐圧力は、底形状によって
大きく相違するが、底形状を同一とし、その因子を除外
して考慮した場合、経験上下肥大Ｐ＝に＊ｃｒ＊ｔ’
・−・（。According to the present invention, when forming a can body for a two-piece can with such a bottom shape, the thickness is 0. Ol to 0.5mm, especially 0.10 to 0.20mm, and tensile strength is 30K
The first feature is that a high-strength thin steel plate with a weight of 71112 or more, particularly 50 to 80 kg/intestinal layer 2 is used. The withstand pressure at the bottom of a two-piece can body varies greatly depending on the bottom shape, but if the bottom shape is the same and this factor is excluded, the empirical vertical enlargement P = * cr * t'
・－・(.
式中、σは金属素材の引張り強度（Ｋｇ／ａｒｍ２）で
あり、仁は金属素材の厚み（ｍａ）であり、Ｐは底の耐
バツクリング圧力（Ｋｇ／■２）であり、ｎは１乃至２
の数であり。In the formula, σ is the tensile strength of the metal material (Kg/arm2), hi is the thickness (ma) of the metal material, P is the buckling resistance of the bottom (Kg/■2), and n is 1 to 2
is the number of
ｋは係数（形状によって約０．４〜０．６の数）である
。k is a coefficient (a number from about 0.4 to 0.6 depending on the shape).
で表わされる。即ち、缶底部のバックリング変形は缶底
突起部（ラジアス部）が円周方向に引張り変形を受ける
ことによるものであり、金Ｂ素材の引張り強度（σ）の
増大は耐圧力の増大に有効に寄与し得ることがわかる。It is expressed as In other words, the buckling deformation of the can bottom is caused by the tensile deformation of the can bottom projection (radius) in the circumferential direction, and increasing the tensile strength (σ) of the gold B material is effective in increasing the withstand pressure. It can be seen that this can contribute to
ところで、本発明で規定した高強度薄板鋼板を第２図に
示すような底形状に直接成形しようとすると、外周側台
錘部分１０にしわが発生する。このしわは、材料が円周
方向に圧縮される結果として径方向に配向した形状で生
ずる。このようなしわの発生は、従来のアルミ板のよう
な厚い素材や、厚手のブリキ板の場合には全く認められ
なかった現象である。By the way, if a high-strength thin steel plate defined by the present invention is directly formed into the bottom shape as shown in FIG. 2, wrinkles will occur in the outer platform weight portion 10. The wrinkles occur in a radially oriented shape as a result of circumferential compression of the material. The occurrence of such wrinkles is a phenomenon that has never been observed in the case of conventional thick materials such as aluminum plates or thick tin plates.
本発明者等は、前記高強度薄板鋼板を素材として用いる
場合にも、直接底の外周側台錘部分を形成することなし
に、絞り加工或は絞り−しごき加工により一旦平底を有
する缶胴に成形し、最終缶胴底部の外眉側台鐘部分及び
突起部分に対応する形状を有する筒状パンチ及び支持リ
ングで前記缶胴の底部を支持しなから該筒状パンチの内
径よりもやや小さい外径を有するドーミンググイと噛み
合せて底部の絞り成形を行うことにより、外周側台錘部
分におけるしわの発生を防止することに成功した。Even when using the high-strength thin steel sheet as a raw material, the inventors have found that, without directly forming the outer peripheral side weight part of the bottom, the inventors can once form a can body with a flat bottom by drawing or drawing-ironing. The bottom of the can body is supported by a cylindrical punch having a shape corresponding to the outer dowel portion and protrusion portion of the final can body bottom and a support ring, which is slightly smaller than the inner diameter of the cylindrical punch. By meshing with a doming goose having an outer diameter and drawing the bottom part, we succeeded in preventing wrinkles from forming on the outer peripheral platform weight part.
本発明の製造工程を説明するための第３図の工程Ａにお
いて、上記高強度薄板鋼板２０を、絞りポンチ２１と絞
りダイス２２の組合せを用い、鋼板２０をしわ押え２３
で押圧しながら、平底２４を有する缶胴２５に成形する
。工程Ａは勿論絞り成形に限定されるものでなく、絞り
ダイス２２の代わりに、しごきダイスを使用すると、絞
りしごき加工を受ける缶胴側壁部２６が形成される９次
いで、工程Ｂにおいて、最終缶胴底部の外周側台錘部分
１０（第２図）及び突起部分１２（第２［Ｎ）の内面に
対応する形状の作用面２７を有する筒状パンチ２８、及
び前記外周側台錘部分１０及び突起部分１２の外面に対
応する形状の作用面２９を有する支持リング３０′Ｔ！
缶胴の底部周辺部３１を挟持しながら、筒状パンチ２８
よりやや小さい外径を有するドーミングダイ３２と噛み
合せる。In step A of FIG. 3 for explaining the manufacturing process of the present invention, the high-strength thin steel plate 20 is pressed using a combination of a drawing punch 21 and a drawing die 22, and the steel plate 20 is pressed by a wrinkle presser 23.
While pressing with the press, a can body 25 having a flat bottom 24 is formed. Process A is of course not limited to drawing, and if a drawing die is used instead of the drawing die 22, the can body side wall 26 that undergoes the drawing and ironing process is formed.9 Next, in process B, the final can is formed. A cylindrical punch 28 having a working surface 27 having a shape corresponding to the inner surface of the outer platform weight portion 10 (FIG. 2) and the protrusion portion 12 (second [N) at the bottom of the body, and the outer platform weight portion 10 and A support ring 30'T with a working surface 29 shaped to correspond to the outer surface of the protruding portion 12!
The cylindrical punch 28 is held while holding the bottom peripheral part 31 of the can body.
It engages with a doming die 32 having a slightly smaller outer diameter.
このような成形加工法を採用することにより筒状パンチ
２８と支持リング３０とにより、しわ発生方向（円周方
向）に直角方向の曲げが作用すると共に、両部材により
底部周辺部３１にしわ押え力も作用してしわの発生が有
効に防止される。By adopting such a forming method, the cylindrical punch 28 and the support ring 30 act on bending in a direction perpendicular to the wrinkle generation direction (circumferential direction), and both members press the bottom peripheral portion 31 against wrinkles. Force is also applied to effectively prevent wrinkles from forming.
本発明において、αが上記範囲よりも太き（なると、し
わの発生する傾向があり、一方αが小さくなると耐圧力
が減少する傾向が見られる。−方、突起部先端のＲが上
記範囲よりも大きくなると耐圧力が小さくなる傾向があ
り、上記範囲よりも小さくなると、成形が困難となった
り、材料切れが生じる傾向がある。αは４０乃至７０度
の範囲及びＲは０．５乃至１ｍｍの範囲にあることが特
に望ましい。In the present invention, if α is thicker than the above range, wrinkles tend to occur, while if α is small, the withstand pressure tends to decrease. If it becomes larger, the pressure resistance tends to decrease, and if it becomes smaller than the above range, molding becomes difficult or material breaks tend to occur. α is in the range of 40 to 70 degrees and R is in the range of 0.5 to 1 mm. It is particularly desirable that the
（発明の好適態様）
本発明で用いる高強度薄板鋼板としては、前述した強度
を有する各種表面処理鋼板を使用し得る０本発明によれ
ば高強度鋼板を用いることにより、缶胴の厚みを小さく
でき、これに伴って素材の節約及び容器の軽量化を行う
ことができる。(Preferred embodiment of the invention) As the high-strength thin steel plate used in the present invention, various surface-treated steel plates having the above-mentioned strength can be used.According to the present invention, by using a high-strength steel plate, the thickness of the can body can be reduced. With this, it is possible to save materials and reduce the weight of the container.
表面処理鋼板としては、冷圧延鋼板を焼鈍後、二次冷間
圧延し、亜鉛メツキ、錫メツキ、ニッケルメッキ、電解
クロム酸処理、クロム酸処理等の表面処理鋼板の一種又
は二種以上行ったものを用いることができる。好適な表
面処理鋼板の一例は、電解クロム酸処理鋼板であり、特
に１０乃至２００ ｍｇ／ｍ２の金属クロム層と１乃至
５０ ｍｇ／ｍ２（金属クロム換算）のクロム酸化物層
とを備えたものであり、このものは塗膜密着性と耐腐食
性との組合せに優れでいる０表面処理鋼板の他の例は、
０．５乃至＋１．２Ｊｌ／＋１２の錫メツキ量を有する
硬質ブリキ板である。The surface-treated steel sheet is a cold-rolled steel sheet that is annealed, then subjected to secondary cold rolling, and subjected to one or more surface-treated steel sheets such as galvanizing, tin plating, nickel plating, electrolytic chromic acid treatment, and chromic acid treatment. can be used. An example of a suitable surface-treated steel sheet is an electrolytic chromic acid treated steel sheet, especially one with a 10 to 200 mg/m2 metallic chromium layer and a 1 to 50 mg/m2 (metallic chromium equivalent) chromium oxide layer. Another example of a zero surface treated steel sheet is:
It is a hard tin plate having a tin plating amount of 0.5 to +1.2 Jl/+12.
本発明に用いる鋼板の厚みは、容器の大きさによっても
相違し、−概に規定することができないが、一定のサイ
ズの缶で比較して、従来の成形法に比して素材の厚みを
５乃至４０％、特に１０乃至３８％に節約できる。The thickness of the steel plate used in the present invention varies depending on the size of the container and cannot be generally specified, but when comparing cans of a certain size, the thickness of the steel plate used in the conventional forming method is The savings can be from 5 to 40%, especially from 10 to 38%.
本発明で用いる高強度薄板鋼板には成形に先立って予め
保護塗膜を形成させておくこともできるし、また成形後
に保護塗膜を設けることもできる。A protective coating may be formed on the high-strength thin steel plate used in the present invention prior to forming, or a protective coating may be provided after forming.
保護塗料としては、熱硬化性及び熱可塑性樹脂から成る
任意の保護塗料：例えばフエ・・−ル・エポキシ樹脂、
アミノ−エポキシ塗料等の変性エポキシ塗料；例えば塩
化ビニル−酢酸ビニル共重合体、塩化ビニル−酢酸ビニ
ル共重合体部分ケン化物、塩化ビニル−酢酸ビニル−無
水マレイン酸共重合体、エポキシ変性−、エポキシアミ
ノ変性−或はエボキシフェ／−ル変性−ビニル樹脂塗料
等のビニル又は変性ビニル塗料；アクリル樹脂系塗料：
スチレン−ブタジェン系共重合体等の合成ゴム系塗料等
の単独又は２種以上の組合せが使用される。As protective coatings, any protective coatings consisting of thermosetting and thermoplastic resins, such as ferro-epoxy resins,
Modified epoxy paints such as amino-epoxy paints; for example, vinyl chloride-vinyl acetate copolymer, partially saponified vinyl chloride-vinyl acetate copolymer, vinyl chloride-vinyl acetate-maleic anhydride copolymer, epoxy modified, epoxy Vinyl or modified vinyl paints such as amino-modified or epoxyfer/-modified vinyl resin paints; acrylic resin paints:
Synthetic rubber paints such as styrene-butadiene copolymers may be used alone or in combination of two or more.
これらの塗料は、エナメル或はラッカー等の有機溶媒溶
液の形で、或は水性分散液又は水溶液の形で、ローラ塗
装、スプレー塗装、浸漬塗装、静電塗装、電気泳動塗装
等の形で金属素材に施す。These paints can be applied to metals in the form of organic solvent solutions, such as enamels or lacquers, or in the form of aqueous dispersions or solutions, in the form of roller coating, spray coating, dip coating, electrostatic coating, electrophoretic coating, etc. Apply to the material.
勿論、前記樹脂塗料が熱硬化性の場合には、必要により
塗料を焼付ける。また絞り−しごき加工を行う場合には
、加工後のカップにスプレー塗布等の手段で、前記塗料
を缶胴に施す、勿論、加工前と加工後との二段階で塗料
を施すこともできる。Of course, if the resin paint is thermosetting, the paint may be baked if necessary. In addition, when drawing and ironing is performed, the paint can be applied to the can body by spraying or the like on the cup after the process.Of course, the paint can also be applied in two stages: before and after the process.
これら有機塗膜は腐食防止及び加工性向上の見地から、
一般に２乃至３ルｍ、特に３乃至２０ルｍの厚み（乾燥
状態）を有することが望ましい。These organic coatings are designed to prevent corrosion and improve processability.
It is generally desirable to have a thickness (in the dry state) of 2 to 3 lm, in particular 3 to 20 lm.
本発明においては、絞り加工は、所望の形状及び所望の
高ざ／径比率となるまで、ポンチ及びダイスの径を段々
小さくしながら、数次にわたって絞り加工を行う。In the present invention, the drawing process is performed several times while gradually decreasing the diameter of the punch and die until the desired shape and desired height/diameter ratio are obtained.
この際、下記式
で定義される絞り比を、−段の絞り加工で１，２０乃至
２．１０．特に１．３０乃至１．９０となるように、ま
た全体としての絞り比を、１．５０乃至３．００、特に
１．８０乃至２．７０となるように行うことが望ましい
。At this time, the drawing ratio defined by the following formula is set to 1.20 to 2.10 in -stage drawing processing. In particular, it is desirable to set the aperture ratio to 1.30 to 1.90, and to set the overall aperture ratio to 1.50 to 3.00, particularly 1.80 to 2.70.
また側壁部にしごき加工を行う場合には、下記式
で定義されるしごき率が一段で１０乃至５０％１特に１
５乃至４５％、及び全体として４０乃至８０％、特に４
５乃至７５％となるように行うのがよい。In addition, when ironing is performed on the side wall, the ironing rate defined by the following formula is 10 to 50% in one step, especially 1.
5 to 45%, and 40 to 80% overall, especially 4
It is preferable to do this so that the ratio is 5 to 75%.
本発明による缶底部加工に際しては５通常のポンチを用
いて絞り底形成は絞り−しごき成形を行い、次いでポン
チを第３図Ｂに示すものに差替えて底形成を行うことが
できる。In processing the can bottom according to the present invention, the bottom can be formed by drawing and ironing using a conventional punch, and then the bottom can be formed by replacing the punch with the punch shown in FIG. 3B.
しかしながら、第４図Ａ及びＢに示される通り、筒状パ
ンチ部材として同軸上に配置された外周部材４０と内周
部材４１との組合せを用い、絞り底形状は絞り−しごき
成形工程Ａでは、内周部材４１を後退させた状態で外周
部材４ｏのみをポンチとして使用し、底形成工程Ｂでは
内周部材４１を前進させた状態で５外周部材４０と内周
部材４１とが最終缶胴底部の外周側台錘部分及び突起部
分の内面に対応する作用面が形成される状態で底形成を
行う。このような底形成法を用いることにより、ワンス
トロークで絞り乃至絞り−しごき成形と底形成とを行う
ことができる。However, as shown in FIGS. 4A and 4B, a combination of an outer peripheral member 40 and an inner peripheral member 41 coaxially arranged as a cylindrical punch member is used, and the drawing bottom shape is formed in the drawing-iron forming step A. Only the outer circumferential member 4o is used as a punch with the inner circumferential member 41 retracted, and in the bottom forming step B, with the inner circumferential member 41 advanced, the outer circumferential member 40 and the inner circumferential member 41 form the final can body bottom. The bottom is formed in a state where working surfaces corresponding to the inner surfaces of the outer peripheral platform weight portion and the protruding portion are formed. By using such a bottom forming method, drawing or drawing-iron forming and bottom forming can be performed in one stroke.
成形後のカップ体は、トリミングを行った後、必要に応
じ、それ自体公知の脱脂操作、例えば湯洗浄、溶剤洗浄
、フロンガス洗浄等に付した後。After the molded cup body is trimmed, if necessary, it is subjected to a known degreasing operation such as hot water cleaning, solvent cleaning, and freon gas cleaning.
以後の製缶操作に付する。This will be used in subsequent can manufacturing operations.
（発明の効果）
本発明によれば、高強度金属素材を用いて、優れた耐圧
強度及び耐バツクリング性を有する底部を備えたツーピ
ース缶用缶胴をしわの発生や板切れを生じることなしに
製造することができた。また、高強度金属素材を用いる
ことにより、板厚を減少させながら耐圧性を向上させ、
更に板厚の減少により素材の節約及び容器の軽量化が可
能となった。(Effects of the Invention) According to the present invention, a can body for a two-piece can having a bottom portion having excellent pressure resistance and buckling resistance can be manufactured using a high-strength metal material without causing wrinkles or sheet breakage. could be manufactured. In addition, by using high-strength metal materials, the pressure resistance is improved while reducing the plate thickness.
Furthermore, the reduction in board thickness has made it possible to save on materials and reduce the weight of the container.
（実施例）
実施例１
素材厚０．１８＋ｍｍのティンフリースチール（ＤＲ−
９）を径１８７ｍｍの円板に打抜き、常法に従い絞りポ
ンチと絞りダイスとの間で、絞り・再絞りを行い内径６
５．９５ ｍ■の平底のコツプ状に成形した。(Example) Example 1 Tin-free steel (DR-
9) into a disk with a diameter of 187 mm, and then drawn and re-drawn using a drawing punch and a drawing die according to the usual method to obtain an inner diameter of 6.
It was molded into a 5.95 m² flat-bottomed cup shape.
次いで、このコツプ状成形物を底形状成形工具（第３図
）すなわぢ筒状底部成形ポンチと支持リングとドーミン
グダイにより底部成形を行った。Next, the bottom of this cup-shaped molded product was formed using a bottom shape forming tool (FIG. 3), namely, a cylindrical bottom forming punch, a support ring, and a doming die.
支持リングはエアクッシ曹ンにより上向きの力で支持さ
れており、その支持力は約４ ｔｏｎである。The support ring is supported by an air cushion with upward force, and its supporting force is approximately 4 tons.
その結果、外周側台錘部分はもとよりその他のいずれの
部分にもしわの発生がなく、且つ破断は皆無であった。As a result, there were no wrinkles in the outer peripheral platform weight portion or any other portion, and there was no breakage at all.
底形状を形成したコツプは凹部を半径４６ｍｍの球面と
し、ボトムシンク１１．２ｍ＋＊、 ドーム径４８．
７ｍｍ、傾斜角（α）４０°、接地部内面側先端半径（
Ｒ） ０．７ ＋ｉ＊を成している。この底形状の耐圧
強度は８．３ｋｇ／ｃｍ２以上を示した。The bottom shape of the cup is a spherical concave portion with a radius of 46 mm, the bottom sink is 11.2 m + *, and the dome diameter is 48.
7mm, inclination angle (α) 40°, radius of the inner tip of the ground contact part (
R) 0.7 +i*. The pressure resistance of this bottom shape was 8.3 kg/cm2 or more.
実施例２
素板厚０．２０ｍｍのブライト錫鍍金鋼板（降伏強さ約
６３ Ｋ３／ｍｍ２、鍍錫量＃２５／２５を直径約１６
５ＩＩ１厘の円板に打抜き、常法に従い絞りポンチと絞
りダイで内径的６６ｍｍのコツプ状に成形し・次いで再
絞り後コツプの底部が平底となるような形状のしごきポ
ンチとしごぎダイとの間で三次にわたるしごき加工を付
した。その後、実施例１における底形状成形工具（第４
図）により底部成形を行った。その結果、外周側台錘部
分はもとより、その他のいずれにもしわが発生すること
がなく、且つ破断は皆無であった。Example 2 Bright tin-plated steel plate with a raw plate thickness of 0.20 mm (yield strength of about 63 K3/mm2, tin coating amount #25/25 and a diameter of about 16 mm)
5II Punch out a disk of 1 liter and form it into a 66mm inner diameter pot shape using a drawing punch and a drawing die according to the conventional method. Then, after re-drawing, use an ironing punch and a ironing die so that the bottom of the hole will be flat. A three-step ironing process was applied in between. After that, the bottom shape forming tool in Example 1 (the fourth
The bottom part was formed using the method shown in Figure). As a result, there were no wrinkles in the outer peripheral platform weight portion or anywhere else, and there was no breakage.
比較例１
素材厚０．１８ｍｍのティンフリースチール（ＤＨ−９
）を径１８７■の円板に打抜き、常法に従い絞りポンチ
と絞りダイスとの間で、絞り・再絞りを行い内径７９ｍ
ｍの平底のコツプを成形し１次いで第５図の如く、先端
に最終的な底形状に対応した形状を持った径約６６ｎ＋
ｍの再絞りポンチにより再絞りを行った。その結果、再
絞り工程のごイ初期段階でテーパ一部４２にしわが発生
した。Comparative Example 1 Tin-free steel (DH-9) with a material thickness of 0.18 mm
) was punched out into a disc with a diameter of 187mm, and drawn and redrawn using a drawing punch and a drawing die according to the usual method to obtain an inner diameter of 79mm.
A flat-bottomed tip with a diameter of about 66n+ is molded and the tip has a shape corresponding to the final bottom shape as shown in Figure 5.
Re-drawing was performed using a re-drawing punch of m. As a result, wrinkles were generated in the taper portion 42 at the initial stage of the re-drawing process.
引き続き、底形状成形工具第５図４４．４５により底成
形を行ったところ、既に発生したしわによりドーム部に
材料が流れ込むのが妨げられ、接地部先端近傍より破断
が生じ、成形不能となった。以下の底加工の方法は素板
厚０．３ ａｒｍ程度の加工性に侵れるｙ４質材又はこ
れに相当する金属板において可能な一般に行われる方法
であり、更に薄肉の高強度材には適用不可能なものであ
る。Subsequently, when the bottom was formed using the bottom shape forming tool Figure 5 44.45, the wrinkles that had already occurred prevented the material from flowing into the dome part, and a break occurred near the tip of the ground contact part, making it impossible to form. . The following bottom processing method is a commonly used method that can be used for Y4 materials or equivalent metal plates that are difficult to work with when the base plate thickness is approximately 0.3 arm, and is applicable to thinner high-strength materials. It's impossible.
第１図は、本発明のツーピース缶用缶胴の全体の構造を
示すものであり、
第２図は、缶底部３の断面構造を拡大して示すものであ
り、
：ＪＳ３図（Ａ）及び（Ｂ）、第４図（Ａ）及び（Ｂ）
及び第５図は本発明の製造工程を説明するための図であ
る。
１・・・缶胴、２・・・側壁部、３・・・缶底部、４・
・・ネッり部、１２・・・突起部分、１４・・・ドーム
部、２１・・・絞りポンチ、２２・・・絞りダイス、２
３・・・しわ押え、２８・・・筒状パンチ、３０・・・
支持リング、３２・・・ドーミングダイ。
第 １ 図
第２図
第４図（Ａ）
第４図（Ｂ）
第５図
手続ネ…正書（師）
昭和６３年７月シ１日
時許庁長官 吉田文毅殿
１、事件の表示
昭和６３年特許願第１２８９号
２、 発明の名称
ツーピース缶用缶胴の成形法
３、補正をする者
事件との関係 特許出願人
住所 神奈川県横須賀市岩戸三丁目３番１６号氏名
上 野 博４、代理人〒１０５
５、補正命令の日付
なし
７、補正の内容
は）明細書第１８頁第７行に、
「以下の底加工の方法」
とあるのを、
「以上の底加工の方法」
と訂正する。Fig. 1 shows the overall structure of the can body for a two-piece can according to the present invention, and Fig. 2 shows an enlarged cross-sectional structure of the can bottom 3. (B), Figure 4 (A) and (B)
and FIG. 5 are diagrams for explaining the manufacturing process of the present invention. DESCRIPTION OF SYMBOLS 1... Can body, 2... Side wall part, 3... Can bottom part, 4...
...Neck part, 12...Protrusion part, 14...Dome part, 21...Drawing punch, 22...Drawing die, 2
3... Wrinkle presser, 28... Cylindrical punch, 30...
Support ring, 32...doming die. Fig. 1 Fig. 2 Fig. 4 (A) Fig. 4 (B) Fig. 5 Procedure Ne... Authorized book (master) Date of July 1, 1985 Fumiyoshi Yoshida, Commissioner of the Office of Time Affairs 1, Indication of the incident Showa 1963 Patent Application No. 1289 2, Title of invention: Method for forming can bodies for two-piece cans 3, Relationship to the case of the person making the amendment Patent applicant address: 3-3-16 Iwato, Yokosuka City, Kanagawa Prefecture Name
Hiroshi Ueno 4, agent 〒105 5, no date of amendment order 7, contents of the amendment) On page 18, line 7 of the specification, ``The following bottom processing method'' was replaced with ``The above bottom processing method.''"Processingmethod," he corrected.
Claims (3)
が３０Ｋｇ／ｍｍ＾２以上の金属板を絞り加工或は絞り
しごき加工に賦して平底を有する缶胴に成形する工程と
、 最終缶胴底部の外周側台錘部分及び突起部分に対応する
形状を有する筒状パンチ及び支持リングで前記缶胴の底
部を支持しながら該筒状パンチの内径よりもやや小さい
外径を有するドーミングダイと噛み合せて底部の絞り成
形を行うことを特徴とするツーピース缶用缶胴の成形法
。(1) A step of forming a metal plate with a thickness of 0.01 to 0.5 mm and a tensile strength of 30 Kg/mm^2 or more into a can body with a flat bottom by drawing or drawing and ironing; A cylindrical punch having a shape corresponding to the outer peripheral platform weight portion and protrusion portion of the bottom of the can body, and a doming die having an outer diameter slightly smaller than the inner diameter of the cylindrical punch while supporting the bottom of the can body with a support ring. A method for forming a can body for a two-piece can, which is characterized by drawing the bottom of the can body by engaging the two-piece can bodies.
至８０度の外周側台錘部分、外周側台錘部分からの突出
寸法（ｈ）が０乃至５ｍｍで且つ先端部の曲率半径（Ｒ
）が０．１乃至３ｍｍである突起部分、突起部分から急
激に立上つた立上り部分及び立上り部分から滑らかに接
続されたドーム部から成る底形状を形成させることを特
徴とするツーピース缶用缶胴。(2) The bottom has an outer platform weight part with an average inclination angle (α) from the horizontal plane of 1 to 80 degrees, a protrusion dimension (h) from the outer peripheral platform weight part of 0 to 5 mm, and a radius of curvature at the tip. (R
) is 0.1 to 3 mm, a raised part that rises abruptly from the raised part, and a dome part that is smoothly connected to the raised part. .
乃至８０度の外周側台錘部分を内方円弧状に形成させる
ことを特徴とする特許請求の範囲第２項記載のツーピー
ス缶用缶胴。(3) At the bottom, the average inclination angle (α) from the horizontal plane is 1
The can body for a two-piece can according to claim 2, characterized in that the outer peripheral side weight portion of 80 degrees to 80 degrees is formed in an inward circular arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63001289A JP2508780B2 (en) | 1988-01-08 | 1988-01-08 | Can body for two-piece can and its forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63001289A JP2508780B2 (en) | 1988-01-08 | 1988-01-08 | Can body for two-piece can and its forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01178325A true JPH01178325A (en) | 1989-07-14 |
| JP2508780B2 JP2508780B2 (en) | 1996-06-19 |
Family
ID=11497296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63001289A Expired - Fee Related JP2508780B2 (en) | 1988-01-08 | 1988-01-08 | Can body for two-piece can and its forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508780B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100527148B1 (en) * | 2003-05-03 | 2005-11-09 | 고기목 | Molding method for a support unit in a vessel of compressor |
| CN102783046A (en) * | 2010-03-05 | 2012-11-14 | 山一电机株式会社 | Non-contact connector |
| US20130098926A1 (en) * | 2010-04-13 | 2013-04-25 | Crown Packaging Technology, Inc. | Can manufacture |
| US9174262B2 (en) | 2010-04-12 | 2015-11-03 | Crown Packaging Technology, Inc. | Can manufacture |
| US9334078B2 (en) | 2010-02-04 | 2016-05-10 | Crown Packaging Technology, Inc. | Can manufacture |
| US9545655B2 (en) | 2010-02-04 | 2017-01-17 | Crown Packaging Technology, Inc. | Can manufacture |
| CN107052189A (en) * | 2017-06-14 | 2017-08-18 | 奥瑞金包装股份有限公司 | The processing method of metal can |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55163138A (en) * | 1979-05-31 | 1980-12-18 | Yoshizaki Kozo | Drawn and squeezed pressureeresisting can |
| JPS61178333U (en) * | 1985-04-26 | 1986-11-07 | ||
| JPS62230439A (en) * | 1986-01-28 | 1987-10-09 | クアーズ、ブリューイング、カンパニー | Method and device for molding can bottom to dome shape |
-
1988
- 1988-01-08 JP JP63001289A patent/JP2508780B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55163138A (en) * | 1979-05-31 | 1980-12-18 | Yoshizaki Kozo | Drawn and squeezed pressureeresisting can |
| JPS61178333U (en) * | 1985-04-26 | 1986-11-07 | ||
| JPS62230439A (en) * | 1986-01-28 | 1987-10-09 | クアーズ、ブリューイング、カンパニー | Method and device for molding can bottom to dome shape |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100527148B1 (en) * | 2003-05-03 | 2005-11-09 | 고기목 | Molding method for a support unit in a vessel of compressor |
| US9334078B2 (en) | 2010-02-04 | 2016-05-10 | Crown Packaging Technology, Inc. | Can manufacture |
| US9545655B2 (en) | 2010-02-04 | 2017-01-17 | Crown Packaging Technology, Inc. | Can manufacture |
| CN102783046A (en) * | 2010-03-05 | 2012-11-14 | 山一电机株式会社 | Non-contact connector |
| US9174262B2 (en) | 2010-04-12 | 2015-11-03 | Crown Packaging Technology, Inc. | Can manufacture |
| US9555459B2 (en) | 2010-04-12 | 2017-01-31 | Crown Packaging Technology, Inc. | Can manufacture |
| US20130098926A1 (en) * | 2010-04-13 | 2013-04-25 | Crown Packaging Technology, Inc. | Can manufacture |
| AU2011239981B2 (en) * | 2010-04-13 | 2016-08-11 | Crown Packaging Technology, Inc. | Can manufacture |
| CN107052189A (en) * | 2017-06-14 | 2017-08-18 | 奥瑞金包装股份有限公司 | The processing method of metal can |
| CN107052189B (en) * | 2017-06-14 | 2018-11-02 | 奥瑞金科技股份有限公司 | The processing method of metal can |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2508780B2 (en) | 1996-06-19 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |