公开(公告)号：US10252319B2

公开(公告)日：2019-04-09

申请号：US15158897

申请日：2016-05-19

Applicant: JFE Steel Corporation

Inventor： Yasuhide Oshima ,  Junichi Kitagawa ,  Hiroki Iwasa ,  Katsumi Kojima ,  Hiroshi Kubo

IPC: B21D51/26 ,  B32B27/36 ,  B32B15/09 ,  B32B15/18

Abstract: A laminated steel sheet for a two-piece can body with a high strain level satisfying the following formulae, the polyester resin layer composing the laminated steel sheet having a center line surface roughness (Ra) of 0.2 μm to 1.8 μm: r1≤r,0.1≤r1/R≤0.25, and 1.5≤h/(R−r)≤4 wherein h is the height of the two-piece can body, r is the maximum radius, r1 is the minimum radius, and R is the radius of the circular laminated steel sheet before forming having the same weight as the can body.

公开(公告)号：US08727155B2

公开(公告)日：2014-05-20

申请号：US13723957

申请日：2012-12-21

Applicant: JFE Steel Corporation

Inventor： Yasuhide Oshima ,  Hiroki Iwasa ,  Yoshihiko Yasue ,  Yuka Nishihara ,  Katsumi Kojima ,  Hiroshi Kubo

IPC: B21D51/26

CPC classification number: B65D7/12 ,  B21D51/26 ,  B21D51/2615 ,  B32B1/02 ,  B32B15/08 ,  B32B15/18 ,  B32B27/18 ,  B32B27/36 ,  B32B2307/518 ,  B32B2307/584 ,  B32B2307/714 ,  B32B2439/66 ,  B65D1/165 ,  Y10T428/31681

Abstract: A can body for a two-piece can made of a laminated steel sheet, the laminated steel sheet containing a steel sheet and a copolyethylene terephthalate resin layer containing at least hyone member selected from the group consisting of isophthalic acid and cyclohexane dimethanol as a copolymer component in a proportion of 5 to 20 mol %, and having a crystallization temperature of 120° C. to 140° C. on at least one side of the steel sheet; and satisfying the following relationships: r1≦r, 0.1≦r1/R≦0.25, and 1.5≦h/(R−r)≦4, wherein r1 represents the minimum radius of the can body, r represents the maximum radius of the can body, h represents the height of the can body, and R represents the radius of the laminated steel sheet having a circular shape before shaping whose weight is the same as that of the can body. The can body has a high strain level, and does not suffer from delamination and breakage of the resin layer.

Abstract translation: 用于层叠钢板的两片式罐体可以是含有钢板和共聚对苯二甲酸乙二醇酯树脂层的叠层钢板，该层叠钢板至少含有选自间苯二甲酸和环己烷二甲醇中的共振组分的共振组分 比例为5〜20摩尔％，在钢板的至少一面具有120℃〜140℃的结晶化温度。 并且满足以下关系：r1＆nlE; r，0.1＆nlE; r1 / R＆nlE; 0.25和1.5＆nlE; h /（R-r）＆nlE; 4，其中r1表示罐体的最小半径，r表示最大半径 罐体的高度h表示罐体的高度，R表示成形前的具有与罐体相同重量的圆形的层叠钢板的半径。 罐体具有高应变水平，并且不会发生树脂层的分层破损。

公开(公告)号：US20150314908A1

公开(公告)日：2015-11-05

申请号：US14761971

申请日：2014-01-24

Applicant: JFE Steel Corporation

Inventor： Yujiro Morioka ,  Takashi Arai ,  Nobuyuki Kobayashi ,  Hiroshi Kubo

IPC: B65D1/12 ,  B23K26/40 ,  B23K11/34 ,  B23K11/06 ,  B23K11/00 ,  B21D51/26 ,  B23K26/36

CPC classification number: B65D1/12 ,  B21D51/26 ,  B23K11/0026 ,  B23K11/066 ,  B23K11/08 ,  B23K11/093 ,  B23K11/34 ,  B23K26/361 ,  B23K28/02 ,  B65D7/045 ,  B65D7/06 ,  B65D7/38

Abstract: This welded can body is constituted of a steel plate material formed from a tin-free steel plate or a resin coated steel plate wherein a tin-free steel plate is coated with a resin, overlapping corresponding parts with each other, and forming a weld part by resistance welding of the overlapped parts. Laser processing parts formed on at least one of four surfaces made up of two surfaces constituting electrode contact surfaces on sides that contact an electrode (A) during resistance welding and two surfaces constituting joining surfaces on sides where the steel plate material is joined together, have laser irradiation parts, wherein laser irradiation is carried out before resistance welding to eliminate chrome plating and expose the steel plate, separately disposed on parts to be welded to become the weld parts, on the steel plate material.

Abstract translation: 该焊接罐体由由无锡钢板或树脂涂覆钢板形成的钢板材料构成，其中无锡钢板涂覆有树脂，彼此重叠，并形成焊接部分 通过电阻焊接重叠部分。 形成在由电阻焊接中的与电极（A）接触的侧面构成的电极接触面的两面构成的四个面中的至少一个上形成的激光加工部，以及构成钢板材接合在一起的侧面的接合面的两个面，具有 激光照射部件，其中在电阻焊接之前进行激光照射以消除镀铬并将钢板单独设置在待焊接部件上以成为焊接部件的钢板材料上。

公开(公告)号：US10399303B2

公开(公告)日：2019-09-03

申请号：US15532443

申请日：2015-12-08

Applicant: JFE STEEL CORPORATION

Inventor： Norihiko Nakamura ,  Yoichiro Yamanaka ,  Junichi Kitagawa ,  Hiroki Nakamura ,  Hiroshi Kubo ,  Yusuke Nakagawa

IPC: B32B15/09 ,  B32B27/08 ,  B32B27/36 ,  B65D1/16 ,  B32B27/20 ,  B65D17/00 ,  B65D65/42 ,  B32B15/08 ,  C08L67/03 ,  C08L67/02 ,  C08L67/00 ,  B65D25/34 ,  B65D1/12 ,  B65D25/14 ,  B65D43/02 ,  B32B15/18 ,  B32B15/20

Abstract: A resin-coated metal sheet for can lids includes a metal sheet coated with thermoplastic resin films on both surfaces and formed into a can lid. A thermoplastic resin film A based on polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) is heat-fused on a surface of the metal sheet serving as an exterior surface of the can lid, and a thermoplastic resin film B based on polyethylene terephthalate (PET) is heat-fused on a surface of the metal sheet serving as an interior surface of the can lid. A composition ratio (wt %) of PBT/PET in the thermoplastic resin film A on the exterior surface is (PBT/PET)=(40/60) to (80/20), and the thermoplastic resin film B on the interior surface includes 95 mol % or more of PET.