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1. 发明专利

DE3922653B4 未知
公开(公告)号：DE3922653B4
公开(公告)日：2005-02-17
申请号：DE3922653
申请日：1989-07-10
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , MIURA NORIMASA , INOUE SHOJI , SHIMADA YOSHIAKI , TAKEZOE AKINOBU
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083
摘要： PURPOSE:To eliminate a degreasing stage and to enable manufacturing the thin walled metallic pipe free from flaws, by performing a plastic bending work through a floating roll having small diameter put on a gap between two cylindrical rolls rotating in the same direction. CONSTITUTION:An inlet side cylindrical roll 1 and outlet side cylindrical roll 2 are rotating in the same direction provided with the gap G. Floating on this gap G, the small diameter bending roll 3 performs the plastic bending of a metallic plate 4. A deflector roll 5 performs bending to return the curvature of the metallic plate 4 in the longitudinal direction to be zero. The metallic plate 4 is bent to be tubular by the cross directional residual stress generated through the plastic bending and return bending. A seam guide roll 6 performs the position controlling of the end edge of the metallic plate 4, after passing through the squeeze roll 7, the abutting part of the metallic plate 4 is welded by the welding toach 8 to be the metallic pipe. Since no lubricating is operated, the degreasing stage is eliminated.

2. 发明专利

AU614403B2 METHOD FOR MAKING THIN-WALLED METAL TUBES 未知
公开(公告)号：AU614403B2
公开(公告)日：1991-08-29
申请号：AU3917089
申请日：1989-08-01
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , SHIMADA YOSHIAKI , TAKEZOE AKINOBU , MIURA NORIMASA , INOUE SHOJI
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083
摘要： PURPOSE:To eliminate a degreasing stage and to enable manufacturing the thin walled metallic pipe free from flaws, by performing a plastic bending work through a floating roll having small diameter put on a gap between two cylindrical rolls rotating in the same direction. CONSTITUTION:An inlet side cylindrical roll 1 and outlet side cylindrical roll 2 are rotating in the same direction provided with the gap G. Floating on this gap G, the small diameter bending roll 3 performs the plastic bending of a metallic plate 4. A deflector roll 5 performs bending to return the curvature of the metallic plate 4 in the longitudinal direction to be zero. The metallic plate 4 is bent to be tubular by the cross directional residual stress generated through the plastic bending and return bending. A seam guide roll 6 performs the position controlling of the end edge of the metallic plate 4, after passing through the squeeze roll 7, the abutting part of the metallic plate 4 is welded by the welding toach 8 to be the metallic pipe. Since no lubricating is operated, the degreasing stage is eliminated.

3. 发明专利

FR2636254A1 未知
公开(公告)号：FR2636254A1
公开(公告)日：1990-03-16
申请号：FR8908819
申请日：1989-06-30
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , MIURA NORIMASA , INOUE SHOJI , SHIMADA YOSHIAKI , TAKEZOE AKINOBU
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083 , B21D5/10
摘要： PURPOSE:To eliminate a degreasing stage and to enable manufacturing the thin walled metallic pipe free from flaws, by performing a plastic bending work through a floating roll having small diameter put on a gap between two cylindrical rolls rotating in the same direction. CONSTITUTION:An inlet side cylindrical roll 1 and outlet side cylindrical roll 2 are rotating in the same direction provided with the gap G. Floating on this gap G, the small diameter bending roll 3 performs the plastic bending of a metallic plate 4. A deflector roll 5 performs bending to return the curvature of the metallic plate 4 in the longitudinal direction to be zero. The metallic plate 4 is bent to be tubular by the cross directional residual stress generated through the plastic bending and return bending. A seam guide roll 6 performs the position controlling of the end edge of the metallic plate 4, after passing through the squeeze roll 7, the abutting part of the metallic plate 4 is welded by the welding toach 8 to be the metallic pipe. Since no lubricating is operated, the degreasing stage is eliminated.

4. 发明专利

SE504310C2 未知
公开(公告)号：SE504310C2
公开(公告)日：1997-01-13
申请号：SE8902961
申请日：1989-09-08
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , MIURA NORIMASA , INOUE SHOJI , SHIMADA YOSHIAKI , TAKEZOE AKINOBU
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083 , B21D5/10
摘要： PURPOSE:To eliminate a degreasing stage and to enable manufacturing the thin walled metallic pipe free from flaws, by performing a plastic bending work through a floating roll having small diameter put on a gap between two cylindrical rolls rotating in the same direction. CONSTITUTION:An inlet side cylindrical roll 1 and outlet side cylindrical roll 2 are rotating in the same direction provided with the gap G. Floating on this gap G, the small diameter bending roll 3 performs the plastic bending of a metallic plate 4. A deflector roll 5 performs bending to return the curvature of the metallic plate 4 in the longitudinal direction to be zero. The metallic plate 4 is bent to be tubular by the cross directional residual stress generated through the plastic bending and return bending. A seam guide roll 6 performs the position controlling of the end edge of the metallic plate 4, after passing through the squeeze roll 7, the abutting part of the metallic plate 4 is welded by the welding toach 8 to be the metallic pipe. Since no lubricating is operated, the degreasing stage is eliminated.

5. 发明专利

ZA894342B METHOD FOR MAKING THIN-WALLED METAL TUBES 未知
公开(公告)号：ZA894342B
公开(公告)日：1990-03-28
申请号：ZA894342
申请日：1989-06-08
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , TAKEFUMI NAKAKO , MIURA NORIMASA , NORIMASA MIURA , INOUE SHOJI , SHOJI INOUE , SHIMADA YOSHIAKI , YOSHIAKI SHIMADA , TAKEZOE AKINOBU , AKINOBU TAKEZOE
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083 , B21D
摘要： PURPOSE:To eliminate a degreasing stage and to enable manufacturing the thin walled metallic pipe free from flaws, by performing a plastic bending work through a floating roll having small diameter put on a gap between two cylindrical rolls rotating in the same direction. CONSTITUTION:An inlet side cylindrical roll 1 and outlet side cylindrical roll 2 are rotating in the same direction provided with the gap G. Floating on this gap G, the small diameter bending roll 3 performs the plastic bending of a metallic plate 4. A deflector roll 5 performs bending to return the curvature of the metallic plate 4 in the longitudinal direction to be zero. The metallic plate 4 is bent to be tubular by the cross directional residual stress generated through the plastic bending and return bending. A seam guide roll 6 performs the position controlling of the end edge of the metallic plate 4, after passing through the squeeze roll 7, the abutting part of the metallic plate 4 is welded by the welding toach 8 to be the metallic pipe. Since no lubricating is operated, the degreasing stage is eliminated.

6. 发明专利

ZA8904342B METHOD FOR MAKING THIN-WALLED METAL TUBES 未知
公开(公告)号：ZA8904342B
公开(公告)日：1990-03-28
申请号：ZA8904342
申请日：1989-06-08
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , TAKEFUMI NAKAKO , MIURA NORIMASA , NORIMASA MIURA , INOUE SHOJI , SHOJI INOUE , SHIMADA YOSHIAKI , YOSHIAKI SHIMADA , TAKEZOE AKINOBU , AKINOBU TAKEZOE
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083 , B21D
CPC分类号： B21C37/083 , B21C37/08

7. 发明专利

GB2222541B METHOD FOR MAKING THIN-WALLED METAL TUBES 未知
公开(公告)号：GB2222541B
公开(公告)日：1992-09-02
申请号：GB8919791
申请日：1989-09-01
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , MIURA NORIMASA , INOUE SHOJI , SHIMADA YOSHIAKI , TAKEZOE AKINOBU
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083
摘要： PURPOSE:To eliminate a degreasing stage and to enable manufacturing the thin walled metallic pipe free from flaws, by performing a plastic bending work through a floating roll having small diameter put on a gap between two cylindrical rolls rotating in the same direction. CONSTITUTION:An inlet side cylindrical roll 1 and outlet side cylindrical roll 2 are rotating in the same direction provided with the gap G. Floating on this gap G, the small diameter bending roll 3 performs the plastic bending of a metallic plate 4. A deflector roll 5 performs bending to return the curvature of the metallic plate 4 in the longitudinal direction to be zero. The metallic plate 4 is bent to be tubular by the cross directional residual stress generated through the plastic bending and return bending. A seam guide roll 6 performs the position controlling of the end edge of the metallic plate 4, after passing through the squeeze roll 7, the abutting part of the metallic plate 4 is welded by the welding toach 8 to be the metallic pipe. Since no lubricating is operated, the degreasing stage is eliminated.

8. 发明专利

DE3922653A1 未知
公开(公告)号：DE3922653A1
公开(公告)日：1990-03-15
申请号：DE3922653
申请日：1989-07-10
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , MIURA NORIMASA , INOUE SHOJI , SHIMADA YOSHIAKI , TAKEZOE AKINOBU
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083
摘要： A metal strip (4) is subjected, on its side defining the inner side of a metal tube, to plastic bending with a floating small- diameter bending roller (3) located perpendicularly to the strip length, and is then bent back (5) until its lengthwise curvature is reduced to zero; whereby the strip (4) is bent into a tubular form according to the curvature of the end product by the widthwise residual curvature resulting from the plastic bending and bending-back, the opposite side edges of the tubular form being subsequently joined together. The strip (4) is passed around a feed roller (1), a delivery roller (2) parallel to and spaced from the feed roller (1) by a gap G and rotating in the same direction and the roller (3) with a diameter larger than the gap G minus twice the strip thickness the strip (4) being fed along the feed roller (1), then through the gap G bent along the bending roller (3), and finally back through the gap G.

9. 发明专利

GB2222541A Method for making thin-walled metal tubes 未知
公开(公告)号：GB2222541A
公开(公告)日：1990-03-14
申请号：GB8919791
申请日：1989-09-01
申请人： NISSHIN STEEL CO LTD
发明人： NAKAKO TAKEFUMI , MIURA NORIMASA , INOUE SHOJI , SHIMADA YOSHIAKI , TAKEZOE AKINOBU
IPC分类号： B21D5/12 , B21C37/08 , B21C37/083
摘要： PURPOSE:To eliminate a degreasing stage and to enable manufacturing the thin walled metallic pipe free from flaws, by performing a plastic bending work through a floating roll having small diameter put on a gap between two cylindrical rolls rotating in the same direction. CONSTITUTION:An inlet side cylindrical roll 1 and outlet side cylindrical roll 2 are rotating in the same direction provided with the gap G. Floating on this gap G, the small diameter bending roll 3 performs the plastic bending of a metallic plate 4. A deflector roll 5 performs bending to return the curvature of the metallic plate 4 in the longitudinal direction to be zero. The metallic plate 4 is bent to be tubular by the cross directional residual stress generated through the plastic bending and return bending. A seam guide roll 6 performs the position controlling of the end edge of the metallic plate 4, after passing through the squeeze roll 7, the abutting part of the metallic plate 4 is welded by the welding toach 8 to be the metallic pipe. Since no lubricating is operated, the degreasing stage is eliminated.

10. 发明专利

JPH1190543A MANUFACTURE OF METAL MADE SIDING MATERIAL HAVING DEEP SINKING PATTERN 失效
公开(公告)号：JPH1190543A
公开(公告)日：1999-04-06
申请号：JP25173197
申请日：1997-09-17
申请人： NISSHIN STEEL CO LTD
发明人： MIURA NORIMASA , WATANABE HARUKI , SHIMADA YOSHIAKI
IPC分类号： B21D22/10 , B21D53/00 , B32B1/06 , B32B5/20 , B32B15/08 , B32B37/24 , B32B31/06
摘要： PROBLEM TO BE SOLVED: To obtain a metal made siding material having a deep sinking pattern having a clear patterned part and an excellent design property. SOLUTION: A metal band plate 10 is press-formed in two processes and the deep sinking pattern is provided in it. In a first process, a prescribed place of the metal band plate 10 is held between a template 31 wherein projected parts 31a corresponding to the patterned part are provided and a soft elastic body 32, the soft elastic body 32 is expanded into a groove parts 31b to form worked parts 11 being joint parts under the state that a part being the patterned part is restricted between the template 31 and the soft elastic body 32. In a second process, the prescribed plate of the metal band plate is held between the template wherein forming recessed parts are provided in the place corresponding to the patterned part and the soft elastic body, and the soft elastic body is expanded into the forming recessed parts to form the patterned part. Next, both end parts of the metal band plate are formed to form fitting projections and fitting receiving parts, foaming resin is poured into the rear side of the metal band plate wherein the fitting projections and the fitting receiving parts are formed, and foaming resin is foamed after inserting rear side material.

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