-
公开(公告)号：US08046916B2
公开(公告)日：2011-11-01
申请号：US12003191
申请日：2007-12-20
CPC分类号： B21D15/10 , B21D13/04 , B21D15/06 , Y10T29/49377 , Y10T29/49398 , Y10T29/49877
摘要： A metallic bellows is manufactured by a first step of bulging a straight raw pipe into a primary formed body having formed on a periphery thereof a corrugated bellows section, and a second step of subjecting at least one of crest portions and trough portions of the bellows section of the primary formed body to roll machining by means of a pair of forming rolls.
摘要翻译： 金属波纹管通过将直的原料管膨胀成在其周边形成有波纹状波纹管部的主要成形体的第一步骤制造，第二步骤是使波纹管部分的波峰部分和波谷部分中的至少一个 的主要成形体通过一对成形辊进行辊加工。
-
公开(公告)号：US20080155806A1
公开(公告)日：2008-07-03
申请号：US12003191
申请日：2007-12-20
CPC分类号： B21D15/10 , B21D13/04 , B21D15/06 , Y10T29/49377 , Y10T29/49398 , Y10T29/49877
摘要： A metallic bellows is manufactured by a first step of bulging a straight raw pipe into a primary formed body having formed on a periphery thereof a corrugated bellows section, and a second step of subjecting at least one of crest portions and trough portions of the bellows section of the primary formed body to roll machining by means of a pair of forming rolls.
摘要翻译： 金属波纹管通过将直的原料管膨胀成在其周边形成有波纹状波纹管部的主要成形体的第一步骤制造，第二步骤是使波纹管部分的波峰部分和波谷部分中的至少一个 的主要成形体通过一对成形辊进行辊加工。
-
公开(公告)号：US08418753B2
公开(公告)日：2013-04-16
申请号：US12698553
申请日：2010-02-02
申请人： Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
发明人： Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
摘要： A heat exchange tube is constructed by forming, on a cylindrical tube peripheral wall, a plurality of projecting portions which project to an inside of the tube peripheral wall, and which are formed by pushing. The plurality of projecting portions are formed, respectively, into conical shapes across a tube axis, and are arranged along virtual spirals on the tube peripheral wall. Accordingly, it is possible to provide a heat exchange tube which facilitates formation of a plurality of projecting portions with the thickness hardly changed and without formation of protruded portions, and which is capable of contributing to enhancement of heat exchanging efficiency.
摘要翻译： 通过在圆筒管周壁上形成突出到管周壁的内部并且通过推动而形成的多个突出部分来构造换热管。 多个突出部分分别跨越管轴线形成圆锥形，并沿着管周壁上的虚拟螺旋排列。 因此，可以提供一种便于形成多个突出部分的热交换管，其厚度几乎不变化并且不形成突出部分，并且能够有助于提高热交换效率。
-
公开(公告)号：US20100224349A1
公开(公告)日：2010-09-09
申请号：US12698553
申请日：2010-02-02
申请人： Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
发明人： Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
摘要： A heat exchange tube is constructed by forming, on a cylindrical tube peripheral wall, a plurality of projecting portions which project to an inside of the tube peripheral wall, and which are formed by pushing. The plurality of projecting portions are formed, respectively, into conical shapes across a tube axis, and are arranged along virtual spirals on the tube peripheral wall. Accordingly, it is possible to provide a heat exchange tube which facilitates formation of a plurality of projecting portions with the thickness hardly changed and without formation of protruded portions, and which is capable of contributing to enhancement of heat exchanging efficiency.
摘要翻译： 通过在圆筒管周壁上形成突出到管周壁的内部并且通过推动而形成的多个突出部分来构造换热管。 多个突出部分分别跨越管轴线形成圆锥形，并沿着管周壁上的虚拟螺旋排列。 因此，可以提供一种便于形成多个突出部分的热交换管，其厚度几乎不变化并且不形成突出部分，并且能够有助于提高热交换效率。
-
-
-
搜索结果
4 条记录 (耗时 0.02 秒)
