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11. 发明专利

JPS5750219A Manufacture of square metallic blanc pipe by roll forming 失效
标题翻译：通过辊轧成型制造方形金属管
公开(公告)号：JPS5750219A
公开(公告)日：1982-03-24
申请号：JP12406480
申请日：1980-09-09
申请人： Nippon Steel Metal Prod Co Ltd
发明人： AKAHORI AKIO , ONDA HIROTAKU , MIZUIWA KENICHI
IPC分类号： B21D5/12 , B21C37/08
摘要： PURPOSE: To prevent occurrence of lap of welding edge by preliminarily forming each side of a square metallic blanc pipe that is to be introduced to welding rolls that has desired circular arc convex outward by corner bending rolls and fin pass rolls.
CONSTITUTION: In the first process, a metallic strip 1 is sent to an upper corner bending roll 3 through a pinch roll. The upper corner bending roll consists of an upper roll 4a and a lower roll 4b. In the second process, the upper side corner is bent leaving the length that constitutes the upper side of the square metallic pipe and, at the same time, a circular arc shape is added to the metallic strip 1. In the third process, the metallic strip 1 in which left and right side corners are formed to circular arc form is passed between upper and lower rolls 6a, 6b of a lower side corner bending roll 6 to bend lower side corners at inner side of left and right upper side corners. In the fourth process, it is led to a fii pass roll 9 and the upper, left and right, and lower sides are formed by compression to desired form, and each side is preliminarily formed to shape that has circular arc convex outward.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过预先形成通过拐角弯曲辊和翅片通过辊将期望的圆弧向外凸出的焊接辊引入到方形金属管中的每一侧来防止焊接边缘的发生。构成：在第一工序中，通过夹送辊将金属条1送到上角弯辊3。上角弯辊由上辊4a和下辊4b组成。在第二工序中，弯曲上侧角，构成上述金属制管的上侧的长度，同时向金属条1加上圆弧状。在第3工序中，金属其中左右角形成圆弧形状的条带1在下侧拐角弯曲辊6的上下辊6a，6b之间通过，以在左右上侧拐角的内侧弯曲下侧拐角。在第四个处理中，被引导到第一卷9，并且上，左和右和下侧通过压缩形成为期望的形状，并且每个侧面预先形成为具有向外凸出的圆弧形状。

12. 发明专利

JPS5750213A Manufacture of square metallic blank pipe 失效
标题翻译：方形金属空管的制造
公开(公告)号：JPS5750213A
公开(公告)日：1982-03-24
申请号：JP12406380
申请日：1980-09-09
申请人： Nippon Steel Metal Prod Co Ltd
发明人： AKAHORI AKIO , OGISO TSUTOMU
IPC分类号： B21C37/15 , B21C37/08 , B21D5/12
摘要： PURPOSE: To manufacture a square metallic blank pipe having a weld metal of good quality at its weld zone, by preforming a square pipe blank, after passing a corner bending process, with an upper side forming roll and a fin pass roll, and by welding with a welding roller having a circular arc shaped roll profile, at manufacturing a square metallic blank pipe.
CONSTITUTION: A metallic blank sheet 1 is formed into a pentagonal cross section with an unclosed apex by bending the corner parts; this blank pipe 1 is processed by an upper side forming roll 2F in order to form an upper side 1a into an outward convex circular arc of a curvature R
1 by applying a mandrel roll 31 from the inside. The blank pipe is then fed to a fin pass roll wherein the bending angle of the square blank pipe 1 is further enlarged, and at the same time, the end planes on both side edges are forced to touch at the side plane of a fin roll, and a compression force is applied from outside to the outer surface of the blank pipe for giving it a 0.5W1.5% reduction. Thus preformed blank pipe is then passed through a welding roll and is electrically seam welded; as a result, an excellent welded seam is formed, and a square metallic pipe with an excellent weld metal at its weld zone is finished.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过预成型方管坯在经过拐角弯曲加工后，通过上侧成型辊和翅片通过辊以及通过焊接来制造具有质量好的焊接金属的方形金属坯料管具有圆弧形辊状轮廓的焊接辊，制造方形金属坯料管。构成：金属坯料1通过弯曲角部而形成为具有未闭合顶点的五边形横截面; 该空白管1由上侧成形辊2F加工，以通过从内侧施加心轴辊31而将上侧1a形成为曲率R1的向外凸圆弧。然后将空白管送入翅片通过辊，其中方形空白管1的弯曲角度进一步增大，同时，两侧边缘上的端平面被迫在翅片辊的侧面接触并且从外管到空管的外表面施加压缩力以使其减少0.5-1.5％。然后将预成型的坯管通过焊接辊并进行电缝焊; 结果，形成了优良的焊缝，并且在其焊接区域具有优良的焊接金属的方形金属管完成。

13. 发明专利

JPS5750212A Manufacture of square metallic blank pipe 失效
标题翻译：方形金属空管的制造
公开(公告)号：JPS5750212A
公开(公告)日：1982-03-24
申请号：JP12406280
申请日：1980-09-09
申请人： Nippon Steel Metal Prod Co Ltd
发明人： AKAHORI AKIO , ONDA HIROTAKU , MIYATA TSUTOMU
IPC分类号： B21C37/15 , B21C37/08 , B21D5/12
摘要： PURPOSE: To improve the reliability of metal at a weld zone, by utilizing a reduction caused by a fin pass roll in preforming a metallic square blank pipe, before feeding it into a welding roll, into a shape comprising four sides respectively bulging outward so as to figure a prescribed convex circular arc, at manufacturing a square metallic blank pipe.
CONSTITUTION: A metallic blank sheet is formed into a pentagonal square pipe blank 1 wherein one apex is unclosed; this pipe blank 1 is fed to a fin pass roll 2F wherein upper and lower forming rolls 12A, 12B and the left and right forming rolls 12C, 12D widen the bending angles α-2, β-2, and at the same time, the end planes on both side edges of the square pipe blank 1 are forced to touch at the side planes of the fin roll 12C of the forming roll 12A; then, the fin roll 12C applies a compression force to the outer surface of the pipe blank 1 which thereby receives a 0.5W1.5% reduction. Thus preformed pipe blank 1 is processed by a next fin pass roll in order to further widening the bending angles and to give a further reduction; after which, the pipe blank 1 is passed through a welding roll and its both side edges are welded; hereby, a square pipe is finished up.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了提高焊接区域金属的可靠性，通过在将金属正方形坯料管预先加工成焊接辊之前，利用由翅片通过辊引起的减压，形成包括分别向外凸出的四个侧面的形状，以便制作一个规定的凸圆弧，制造一个方形金属空白管。构成：金属坯料形成为五角形方管坯1，其中一个顶点未封闭; 该管坯1被供给到翅片通过辊2F，其中上成形辊12A和下成形辊12B以及左右成形辊12C，12D加宽弯曲角α-2，β-2，同时，方管坯1的两侧边缘上的端面被迫接触成形辊12A的翅片辊12C的侧面; 然后，翅片卷12C对管坯1的外表面施加压缩力，从而减少0.5-1.5％。因此，预成形的管坯1由下一个翅片通过辊加工，以进一步加宽弯曲角度并进一步减小; 之后，将管坯1通过焊接辊并将其两个侧边焊接; 因此，方管完成。

14. 发明专利

JPS579528A MANUFACTURE OF SQUARE-SHAPED METALLIC TUBE 失效
公开(公告)号：JPS579528A
公开(公告)日：1982-01-19
申请号：JP8445380
申请日：1980-06-21
申请人： NIPPON STEEL CORP , NIPPON STEEL METAL PROD
发明人： AKAHORI AKIO , ONDA HIROTAKU , OGISO TSUTOMU , HAGA HIROTSUGU , AOKI KAZUO
IPC分类号： B21C37/15
摘要： PURPOSE:To prevent lap occuring in an edge part by guiding a blank material of square-shaped tube, which is corner-bended to a welding roll having circular-arc- shaped upper rolls and butt-welding said material. CONSTITUTION:A blank material 5, which is corner-bended in the processes up to a fin-path-roll 9 and is formed into an open section of roughly square-shaped, is sent to welding rolls 10 in the next position. The material 5 is pressed from the periphery by the welding rolls 10, 15, whereby upper rolls 15a, 15b, having a radius of curvature R, in cooperation with the other rolls on 3 sides, keep the material 5 in the pressing status. Particularly, the overlap of faces 21, 22 into the tube is prevented, and the lap occurring in a welded face is eliminated, by the face-pressure through the upper rolls 15a, 15b. Then, butting the edge of an opening on the upward side face is butted and electrically welded, thereby a square-shaped metallic tube 12 having a welding juncture 11 on the upward side face is made.

15. 发明专利

JPS579527A MANUFACTURE OF SQUARE-SHAPED SEAM WELDED METALLIC TUBE 失效
公开(公告)号：JPS579527A
公开(公告)日：1982-01-19
申请号：JP8445280
申请日：1980-06-21
申请人： NIPPON STEEL CORP , NIPPON STEEL METAL PROD
发明人： OGAWA SEIICHIROU , AKAHORI AKIO , ONDA HIROTAKU , MIYATA TSUTOMU , HAGA HIROTSUGU , AOKI KAZUO
IPC分类号： B21C37/15
摘要： PURPOSE:To prevent an edge from lapping during welding by setting up a butting angle of upward side faces and performing welding under the pressure of upper and lower rolls and right and left rolls. CONSTITUTION:A blank material 5, which is corner-bended in the processes up to a fin-path-roll 9 to form into an open section of roughly square-shaped, is sent to welding roll 10 in the next position. The material 5 is pressed from the periphery by the welding roll 10, 15, whereby, since for the roll 15 a caliber of welding rolls having a prescribed butting angle theta on upward faces composed of upper rolls 15a and 15b is used, therefore edges of upper side faces 21 and 22 make a weld juncture 11 without occurrence of overlaps and flaps. A square-shaped metallic tube 12 having the juncture 11 on its upward face is adjusted its sectional shape and its longitudinal shape through a Turk's head roll 13 for leveling, then, it is cut in a required length, thereby the product is made.

16. 发明专利

JPS579526A MANUFACTURE OF SQUARE SHAPED METALLIC TUBE THROUGH CONVEX ROLL 失效
公开(公告)号：JPS579526A
公开(公告)日：1982-01-19
申请号：JP8445180
申请日：1980-06-21
申请人： NIPPON STEEL CORP , NIPPON STEEL METAL PROD
发明人： WATANABE SHIYOUZOU , OGAWA SEIICHIROU , SOGAWA HISASHI , KAJI EIKICHI , AKAHORI AKIO , ONDA HIROTAKU , HAGA HIROTSUGU , AOKI KAZUO
IPC分类号： B21C37/15 , B21D5/12
摘要： PURPOSE:To produce a square shaped metallic tube efficiently and with a slight inflicted change in the mechanical property of material by guiding a corner-bended blank material of a square shaped tube to welding rolls, performing butt welding its edges and leveling four side faces. CONSTITUTION:A beltlike material 1 is bent at positions 4, 4 so as to leave widths in both end parts by an upward cornerbending roll 3, the middle part of 4, 4 is then bent so as to make right and left sides and a downward side. Then, forcing a fin roll 9a into a gap between edges of upward opening, and pushing a blank material in a caliber consisting of a frange roll 9b, right and left side rolls 9c and a lower roll 9d from 4 sides, thereby its cross section gets near a square shape. A welding roll 10 is then screwed-down and is fitted to the upper and lower rolls and right and left side rolls, then performing an electric butt welding the edge of the downward opening, thereby, a square shaped metallic tube 12 having a welding juncture 11 on its upward side face is made. This tube 12 is adjusted its sectional shape and its longitudinal shape through a Turk's head roll 13 for leveling, and is cut by a desired length to make a product.

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