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1. 发明专利

JP2009183983A Method of bending electric resistance welded steel tube 审中-公开
标题翻译：弯曲电阻焊钢管的方法
公开(公告)号：JP2009183983A
公开(公告)日：2009-08-20
申请号：JP2008027185
申请日：2008-02-07
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MASUKO MAMORU
IPC分类号： B21D7/025 , B21D9/03
摘要： PROBLEM TO BE SOLVED: To provide a method of bending an electric resistance welded steel tube by which the life of a working tool of a rotating and pull-bending apparatus is prolonged in the working of the electric resistance welded steel tube having a stage for bending the electric resistance welded tube and a stage for expanding a tube end succeeding to the stage for bending.
SOLUTION: When bending the electric resistance welded tube p by a rotating and pull-bending apparatus, a rotating and pull-bending apparatus 8 on the surface of which relieving grooves 9 in which the bead part of the electric resistance welded steel tube p is housed are formed on the surface of the working tool 1 on the inside of bending and the surface of a ball mandrel 5 is used.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种弯曲电阻焊钢管的方法，其中在具有下述特征的电阻焊钢管的加工中延长了旋转和拉弯装置的加工工具的寿命用于弯曲电阻焊管的阶段和用于在弯曲阶段之后扩展管端的台。解决方案：当通过旋转和拉弯装置弯曲电阻焊管p时，在其表面上的旋转和拉弯装置8的缓冲槽9，其中电阻焊钢管的胎圈部分 p被容纳在工作工具1的弯曲内侧的表面上，并且使用球心轴5的表面。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2010036192A Bead cutting method and apparatus of resistance welded tube 审中-公开
标题翻译：电阻焊丝管的切割方法及装置
公开(公告)号：JP2010036192A
公开(公告)日：2010-02-18
申请号：JP2008198251
申请日：2008-07-31
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NISHINO MANABU , MASUKO MAMORU , YORIFUJI AKIRA , OGURI HITOHISA
IPC分类号： B23K37/08 , B23K13/00
摘要： PROBLEM TO BE SOLVED: To provide a bead cutting method and apparatus of a resistance welded tube, by which occurrence of chatter is prevented in bead cutting of an inner or outer face even if a cutting quantity of a weld bead is increased, by which a shape of the weld bead after cutting is made smoother, and by which a height of the weld bead after cutting is put within a prescribed range. SOLUTION: In the bead cutting method, when a weld bead formed in a butt weld zone of a resistance welded tube is cut with a bead cutting tool so as to attain a height within a predetermined target height range, a pre-cutting weld bead height is determined based on the manufacturing specifications of the resistance welded tube, and a required cutting quantity is determined from the pre-cutting weld bead height and the target bead height, and then the required cutting quantity so determined is cut in two steps. The invention includes the apparatus for materializing the method. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种电阻焊管的焊道切割方法和装置，即使焊缝的切割量增加，也可以防止在内表面或外表面的胎圈切割中发生颤动，切割后的焊缝的形状变得更平滑，切割后的焊道的高度在规定范围内。＆lt; P＆gt;解决方案：在胎圈切割方法中，当利用胎圈切割工具切割形成在电阻焊管的对接区中的焊道，以达到预定目标高度范围内的高度时，预切割根据电阻焊管的制造规格确定焊道高度，根据预切割焊道高度和目标焊道高度确定所需的切割量，然后分两段切割所需要的切割量。本发明包括实现该方法的装置。版权所有（C）2010，JPO＆INPIT

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