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MANUFACTURING METHOD OF STEEL SHEET PILE
To alleviate a load on a steel sheet by a cut member during cutting of a steel sheet, and a load on the cut member.SOLUTION: A manufacturing method of a steel sheet pile includes: uncoil step S1 of unwinding a belt-like steel sheet out of a coil roll; press molding step S2 of performing press working on two side end parts of the steel sheet extending along the unwinding direction, and forming at least one hole; roll molding step S3 of performing roll molding on the side end parts where the holes are formed respectively, and forming a joint part by folding the steel sheet so as to face each other with a predetermined interval in the side end parts; and cut step S4 of inserting a lower blade member into a position that is not overlapped with the holes, making an upper blade member approach the steel sheet from the side opposite to the lower blade member at the position of the holes in the side end part, and cutting the steel sheet in the width direction. In roll molding step S3, the steel sheet is folded in such a manner that the side end parts are overlapped with the holes in the approach direction of the upper blade member in cut step S4 including side edges.SELECTED DRAWING: Figure 3
【課題】鋼板の切断時に切断部材による鋼板への負荷及び切断部材への負担を軽減する。【解決手段】コイルロールから帯状の鋼板を巻き出すアンコイルステップＳ１と、巻き出し方向に沿って延びる鋼板の２つの側端部にそれぞれプレス加工を施して、少なくとも１つの孔を形成するプレス成形ステップＳ２と、孔が形成された側端部それぞれにロール成形を施して、側端部において所定の間隔をあけて向かい合うように鋼板を折り曲げて継手部を形成するロール成形ステップＳ３と、孔と重ならない位置に下刃部材を挿入し、側端部における孔の位置で下刃部材とは反対側から上刃部材を鋼板に接近させて鋼板を幅方向に切断する切断ステップＳ４と、を含み、ロール成形ステップＳ３において、側端部が側縁を含めて切断ステップＳ４における上刃部材の接近方向において孔と重なるように鋼板を折り曲げる。【選択図】図３
MANUFACTURING METHOD OF STEEL SHEET PILE
To alleviate a load on a steel sheet by a cut member during cutting of a steel sheet, and a load on the cut member.SOLUTION: A manufacturing method of a steel sheet pile includes: uncoil step S1 of unwinding a belt-like steel sheet out of a coil roll; press molding step S2 of performing press working on two side end parts of the steel sheet extending along the unwinding direction, and forming at least one hole; roll molding step S3 of performing roll molding on the side end parts where the holes are formed respectively, and forming a joint part by folding the steel sheet so as to face each other with a predetermined interval in the side end parts; and cut step S4 of inserting a lower blade member into a position that is not overlapped with the holes, making an upper blade member approach the steel sheet from the side opposite to the lower blade member at the position of the holes in the side end part, and cutting the steel sheet in the width direction. In roll molding step S3, the steel sheet is folded in such a manner that the side end parts are overlapped with the holes in the approach direction of the upper blade member in cut step S4 including side edges.SELECTED DRAWING: Figure 3
【課題】鋼板の切断時に切断部材による鋼板への負荷及び切断部材への負担を軽減する。【解決手段】コイルロールから帯状の鋼板を巻き出すアンコイルステップＳ１と、巻き出し方向に沿って延びる鋼板の２つの側端部にそれぞれプレス加工を施して、少なくとも１つの孔を形成するプレス成形ステップＳ２と、孔が形成された側端部それぞれにロール成形を施して、側端部において所定の間隔をあけて向かい合うように鋼板を折り曲げて継手部を形成するロール成形ステップＳ３と、孔と重ならない位置に下刃部材を挿入し、側端部における孔の位置で下刃部材とは反対側から上刃部材を鋼板に接近させて鋼板を幅方向に切断する切断ステップＳ４と、を含み、ロール成形ステップＳ３において、側端部が側縁を含めて切断ステップＳ４における上刃部材の接近方向において孔と重なるように鋼板を折り曲げる。【選択図】図３
MANUFACTURING METHOD OF STEEL SHEET PILE
鋼矢板の製造方法
SAKAI HIROTAKA (author)
2022-12-20
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
B21B
Walzen von Metall
,
ROLLING OF METAL
/
B21D
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
,
Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs
/
B23D
Hobeln
,
PLANING
/
B23P
Sonstige Metallbearbeitung
,
OTHER WORKING OF METAL
| European Patent Office | 2016
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