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1. 发明授权

US5697155A Method of manufacturing a branched pipe by internal high-pressure forming 失效
标题翻译：通过内部高压成形制造分支管的方法
公开(公告)号：US5697155A
公开(公告)日：1997-12-16
申请号：US341113
申请日：1994-11-18
申请人： Henning Bloecker , Pierre Bonny , Thomas Huelsberg , Thoralf Nehls , Ralf Puenjer , Eckhard Reese , Heinz-Ruediger Otte
发明人： Henning Bloecker , Pierre Bonny , Thomas Huelsberg , Thoralf Nehls , Ralf Puenjer , Eckhard Reese , Heinz-Ruediger Otte
IPC分类号： B21C37/29 , B21D9/03 , B21D9/12 , B21D22/10 , F01N13/10 , F01N13/18 , F16L41/03 , B23P17/00
CPC分类号： F01N13/102 , B21C37/292 , B21D22/105 , B21D9/03 , B21D9/12 , F01N13/141 , F01N13/1805 , F01N13/1883 , F16L41/03 , F01N2470/24 , F01N2530/04 , Y10T29/49442 , Y10T29/49805
摘要： The invention relates to a method and a device for manufacturing T-pieces from an unbranched starting piece of pipe by means of internal high-pressure forming (IHF). For this purpose, the starting piece of pipe is placed in a two-part forming tool which gives the shape, can be opened and closed, surrounds the starting piece of pipe, and has a cutout corresponding to the desired shape of the T-shaped pipe branch. Placed in a sealing manner against the two open end faces of the inserted starting piece of pipe in each case is a plunger which is movable in the forming tool and can be pushed axially into the forming took in each case by a pressure cylinder. The interior of the starting piece of pipe is filled with pressure fluid by means of an opening in at least one of the plungers, prior to being placed on the plungers in a sealing manner. A fluid high-pressure is built up by pushing the plungers axially into the forming tool with high force and, thus initiated, by pushing pipe wall material axially towards the forming point, the pipe wall material is pressed into the cutout in the forming tool and the T-shaped branch is thus shaped. In order to be able to manufacture T-pieces with a curved branch, the end face of the T-shaped cutout for the pipe branch is supported with controllable force by means of a flexible mandrel.
摘要翻译：本发明涉及一种用于通过内部高压成形（IHF）从无支管起始管制造T形件的方法和装置。为此，将管件的起始件放置在两部分成形工具中，其形状可以打开和关闭，围绕起始管件，并具有对应于T形的所需形状的切口管道分支。在每种情况下，以封闭方式抵靠插入的管件的两个开口端面设置有可在成形工具中移动的柱塞，并且可以在每种情况下被压力缸轴向推入成型。在以密封方式放置在柱塞上之前，起始管件的内部通过至少一个柱塞中的开口填充有压力流体。通过将柱塞轴向推入成形工具中并通过将管壁材料轴向推向成形点而启动，形成流体高压，管壁材料被压入成形工具中的切口中， T形分支因此成形。为了能够制造具有弯曲分支的T形件，用于管支路的T形切口的端面通过柔性心轴以可控的力支撑。

2. 发明授权

US4841760A Process and apparatus for manufacturing tube bends 失效
标题翻译：用于制造弯管的工艺和装置
公开(公告)号：US4841760A
公开(公告)日：1989-06-27
申请号：US191167
申请日：1988-04-07
申请人： James M. Ferguson
发明人： James M. Ferguson
IPC分类号： B21D9/12
CPC分类号： B21D9/12
摘要： A process for making a tube bend of a predetermined wall thickness from a length of straight tube comprises forming the straight tube to have a quasi-elliptical cross section and irregular wall thickness which has a maximum value on one side of the major axis of the quasi ellipse, expanding the quasi-elliptical tube to cause the wall thickness on the other side of the major axis to be reduced and bending the tube about an axis located on said other side of said major axis. Apparatus suitable for performing the process comprises a die (2) formed with an oblique inclined converging passage (3) of circular cross section at one end changing progressively to quasi-elliptical cross section at the other end and a curved mandrel (6) having a portion (8) which changes from quasi-elliptical cross section at the shank (7) to circular cross section at the curved portion (9).
摘要翻译： PCT No.PCT / GB87 / 00571 Sec。 371日期：1988年4月7日 102（e）1988年4月7日PCT PCT 1987年8月13日PCT公布。出版物WO88 / 01207 日期：1988年2月25日。从直管长度制作预定壁厚的弯管的方法包括：将直管形成为具有准椭圆形横截面和不规则壁厚，其一侧具有最大值准椭圆管的长轴，使准椭圆管膨胀，使长轴另一侧的壁厚减小，并围绕位于所述长轴的另一侧的轴弯曲。适于执行该方法的装置包括：一个模具（2），其形成有一个倾斜的倾斜会聚通道（3），该倾斜的会聚通道（3）在一端逐渐改变成另一端的准椭圆形横截面;以及弯曲的心轴（6）所述部分（8）从所述柄（7）处的准椭圆形横截面变化到所述弯曲部分（9）处的圆形横截面。

3. 发明授权

US3646799A Method of making molds for continuous casting machines 失效
标题翻译：制造连续铸造机械的方法
公开(公告)号：US3646799A
公开(公告)日：1972-03-07
申请号：US3646799D
申请日：1969-12-15
申请人： KABEL UND METALWERKE GUTCHOFFN
发明人： KIPP ADOLF , PAYK HEINZ
IPC分类号： B21D9/12 , B22D11/057 , B21D51/00
CPC分类号： B22D11/057 , B21D9/12
摘要： A method of making molds for use in continuous casting machines is disclosed, wherein a mandrel is forced into a pipe for the latter to assume overall configuration of the mandrel. The pipe is cold-worked on the mandrel to assume contour thereof in detail of surface configuration, the pipe is removed therefrom subsequently.
摘要翻译：公开了一种制造用于连续铸造机的模具的方法，其中心轴被迫进入用于后者的管中以呈现心轴的整体构型。在心轴上对管进行冷加工，以使其轮廓具有表面形状的细节，随后将管从其中移除。

4. 发明授权

US2318113A Means for producing pipe bends 失效
标题翻译：用于生产弯管的方法
公开(公告)号：US2318113A
公开(公告)日：1943-05-04
申请号：US31495840
申请日：1940-01-22
申请人： HALL TAYLOR EDWARD
发明人： HALL TAYLOR EDWARD
IPC分类号： B21D9/12
CPC分类号： B21D9/12

5. 发明授权

US2288753A Machine for making pipe bends 失效
标题翻译：制造弯管机
公开(公告)号：US2288753A
公开(公告)日：1942-07-07
申请号：US32711240
申请日：1940-04-01
申请人： TAYLOR FORGE & PIPE WORKS
发明人： STAROBA JOSEPH F
IPC分类号： B21D9/12
CPC分类号： B21D9/12

6. 发明授权

US1891338A Method of and means for bending tubes 失效
标题翻译：弯管的方法和装置
公开(公告)号：US1891338A
公开(公告)日：1932-12-20
申请号：US51434831
申请日：1931-02-09
申请人： SNELL LESTER W
发明人： SNELL LESTER W
IPC分类号： B21D7/08 , B21D9/12
CPC分类号： B21D9/12 , B21D7/085 , Y10T29/49444

7. 发明授权

US1353714A Method and device for manufacturing pipe-bends, serpentines, and the like 失效
标题翻译：管弯曲，蛇形等的制造方法和装置
公开(公告)号：US1353714A
公开(公告)日：1920-09-21
申请号：US18092617
申请日：1917-07-16
申请人： FIRM ROHRBOGENWERK G M B H
发明人： HIERONYMUS BOHLING RUDOLF
IPC分类号： B21D9/12
CPC分类号： B21D9/12

8. 发明授权

US517116A Machine for joining and rolling sheets of metal 失效
公开(公告)号：US517116A
公开(公告)日：1894-03-27
申请号：US517116D
CPC分类号： B21D9/12

9. 发明授权

US454186A Field 失效
公开(公告)号：US454186A
公开(公告)日：1891-06-16
申请号：US454186D
CPC分类号： B21D9/12 , Y10T29/49439

10. 发明授权

US11794233B1 Bender 有权
公开(公告)号：US11794233B1
公开(公告)日：2023-10-24
申请号：US18057214
申请日：2022-11-20
申请人： Robert G. DePierri
发明人： Robert G. DePierri
IPC分类号： B21D9/12 , B21D9/08 , B21D9/04
CPC分类号： B21D9/12 , B21D9/08 , B21D9/04
摘要： Benders are disclosed relating to the convenient, accurate, and precise bending of tubing. Example benders include features such as a mandrel, adjustable mechanical stops, and scales having relatively high resolution along with significant distance from a central axis of the mandrel. Certain benders may include separate fine and course adjustments to bend angles and support mechanisms for controlling the bend plane angle.

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