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1. 发明授权

US4170157A Trimming pipe bends 失效
标题翻译：修边弯管
公开(公告)号：US4170157A
公开(公告)日：1979-10-09
申请号：US865660
申请日：1977-12-29
申请人： Rolf Koser
发明人： Rolf Koser
IPC分类号： B21C37/28 , B23D45/10 , B23D45/12 , B23D19/08
CPC分类号： B23D45/12 , B21C37/28 , B23D45/102 , Y10S83/914 , Y10T83/7701
摘要： A machine for the trimming of a pipe bend held in a die in a machine frame has two hydraulic rams mounted at 45.degree., the piston rod of each ram carrying one of a pair of rotary cutting devices for trimming respective ends of the pipe bend. Under the two hydraulic rams there are arranged, each on a respective inclined guide way and likewise at an angle of 45.degree. in the machine frame, movable swarf or burr removing chamfering devices moving to bring their rotary cutter head coaxially into engagement with a respective trimmed end of the pipe bend.
摘要翻译：用于修整保持在机架中的模具中的管弯头的机器具有安装在45°处的两个液压柱塞，每个压头的活塞杆承载一对旋转切割装置中的一个，用于修剪管弯管的相应端部。在两个液压柱塞下，在机架中分别相应倾斜的引导方式和45°的角度布置，可移动的切屑或去毛刺的切削装置移动以使其旋转刀头同轴地与相应的修剪管弯头的末端。

2. 发明授权

US4220028A Method and device for producing tube bends 失效
标题翻译：用于生产弯管的方法和装置
公开(公告)号：US4220028A
公开(公告)日：1980-09-02
申请号：US901482
申请日：1978-05-01
申请人： Rolf Koser , Egon Haberstock , Anton Breidenbend , Manfred Wonderschutz
发明人： Rolf Koser , Egon Haberstock , Anton Breidenbend , Manfred Wonderschutz
IPC分类号： B21C37/28 , B21D7/08 , B21D3/14
CPC分类号： B21D7/08 , B21C37/28
摘要： Method of producing tube bends of a given diameter and substantially uniform wall thickness from a straight tube having a diameter smaller than the given diameter, which includes re-shaping at least one end of the straight tube with a work-tool to form tangentially directed cylindrical leg extensions of equal tube bend cross section.
摘要翻译：从直径小于给定直径的直管生产给定直径和基本上均匀的壁厚的管弯曲的方法，其包括用工作工具重新成形直管的至少一端，以形成切向圆柱形等弯管横截面的延伸部分。

3. 发明授权

US4102169A Method and apparatus for pipe bending 失效
标题翻译：管道弯曲的方法和装置
公开(公告)号：US4102169A
公开(公告)日：1978-07-25
申请号：US740955
申请日：1976-11-11
申请人： Rolf Koser
发明人： Rolf Koser
IPC分类号： B21D7/16 , B21C37/28 , B21D9/12 , B21D9/00
CPC分类号： B21C37/28 , B21D9/12
摘要： The invention provides an improved method and apparatus for pipe bending. In the method a leading portion of a length of pipe is heated and bent around a mandrel into a pipe bend, whereafter it is hot calibrated or sized to finished dimensions and at the same time cut off and trimmed to size at both ends. In a machine for carrying out the method, there are a heating chamber and an interchangeable bending mandrel. At the end of the bending mandrel there is a horizontally functioning calibrating or sizing device. A severing device is both in front of and behind the calibrating device for cutting off and trimming the pipe bend, and the pipe bend is movable both longitudinally and/or transversely in the horizontal plane.
摘要翻译：本发明提供一种改进的弯管方法和装置。在该方法中，一段长度的管道的引导部分被加热并围绕心轴弯曲成管弯曲，然后它被热校准或尺寸成为最终尺寸，同时在两端被切割和修整成尺寸。在用于执行该方法的机器中，存在加热室和可互换的弯曲心轴。在弯曲心轴的末端有一个水平功能的校准或尺寸设备。切断装置位于校准装置的前面和后面，用于切断和修剪管道弯曲部，并且管道弯曲部可在水平面中纵向和/或横向移动。

4. 发明授权

US4043167A Process and machine for finishing a 15.degree. to 180.degree. pipe bend which has been preformed on a pipe bending press 失效
标题翻译：用于整理在弯管机上进行的15 {20 {0〜180} {{{
公开(公告)号：US4043167A
公开(公告)日：1977-08-23
申请号：US714161
申请日：1976-08-13
申请人： Rolf Koser
发明人： Rolf Koser
IPC分类号： B21D7/06 , B21C37/28 , B21C37/30 , B21D7/16 , B21D43/28 , B23D45/10 , B23D45/12
CPC分类号： B23D45/102 , B21C37/28 , B21C37/30 , B23D45/12 , Y10T29/49446 , Y10T83/7693 , Y10T83/7701
摘要： A process for finishing a 15.degree. to 180.degree. pipe bend which has been preformed on a pipe bending press comprises submitting a preformed pipe bend at a temperature of 700.degree. to 900.degree. C. at which it leaves a pipe bending press to a hot sizing operation which includes trimming both ends of the pipe bend to precise dimensions to eliminate further finishing.
摘要翻译：在管弯曲压力机上进行的完成15°至180°弯管的处理方法包括在700℃至900℃的温度下进行预成形的弯管，在该温度下离开管弯曲压力机进行热定型其操作包括将管弯头的两端修剪成精确的尺寸以消除进一步的精加工。

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