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    • 5. 发明专利
    • Method for forming bent member, bent member, and method for manufacturing the same
    • 用于形成弯曲部件,弯曲部件的方法及其制造方法
    • JP2011073010A
    • 2011-04-14
    • JP2009224515
    • 2009-09-29
    • Jfe Steel CorpJfeスチール株式会社
    • FUTATSUKA TAKAYUKIHIGAI KAZUHIKOTAMAI YOSHIKIYOHIRA TAKAAKIYAMAZAKI YUJIFUJITA TAKESHI
    • B21D51/16
    • B21D5/015B21C37/14B21D47/01E04C3/07E04C2003/0413E04C2003/0439E04C2003/0465Y10T428/12229
    • PROBLEM TO BE SOLVED: To solve a problem that forming to a desired bent member by an integral press forming is not enabled when employing a single sheet of a high strength steel sheet as a material in a conventional forming method and a problem that forming to the bent member is enabled when employing a single sheet of a low strength steel sheet as the material but causes insufficiency of member strength so that component strength becomes insufficient to increase weight by increase of reinforcing components. SOLUTION: A method for forming the bent member includes: a bending step where blank 1, 2 formed into a bent contour shape corresponding to the bend in the length direction of the bent member 30 are folded to a cross-sectional shape corresponding to divided parts of the cross-sectional shape of the bent member; and a joining step for joining two (or equal to three or more) members 10, 20 obtained by the bending step. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:为了解决在以往的成形方法中使用高强度钢板的一片作为材料时,通过一体成形法形成所需弯曲部件的问题, 当采用单片低强度钢板作为材料时,能够形成弯曲构件,但是导致构件强度不足,使得通过增加加强构件增加部件强度不足以增加重量。 解决方案:一种用于形成弯曲构件的方法包括:弯曲步骤,其中形成为与弯曲构件30的长度方向上的弯曲相对应的弯曲轮廓形状的坯料1,2折叠成相应的横截面形状 分割弯曲构件的横截面形状的部分; 以及用于连接通过弯曲步骤获得的两个(或三个或更多个)构件10,20的接合步骤。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Tube for heat exchanger
    • 热交换器管
    • JP2012102948A
    • 2012-05-31
    • JP2010252807
    • 2010-11-11
    • Denso Corp株式会社デンソー
    • OHARA TAKAHIDEHAMADA HIROSHIYOSHIDA NORIOSAKAKIBARA TETSUYAMITSUKAWA KAZUHIROO TAKASHIGENTA HIROYUKISAITO MITSUKATSUNAKABO TADASHIMIYAZAKI NORIYUKIBABA NORIMASASHIMANUKI HIROYASU
    • F28F1/02B21D53/04F28D1/053F28F1/40
    • F28F3/086B21C37/14B21C37/151B23K1/0012F28D1/0391F28D1/05366F28D2021/0094F28F2275/04
    • PROBLEM TO BE SOLVED: To improve the brazability at a joint part, in a tube for heat exchangers.SOLUTION: A tubular member 20 that constitutes a tube for a heat exchanger comprises a pair of flat plate sections 21, 22 that are aligned in parallel so as to face one another in the minor-axis direction of the channel cross section, and a pair of curved sections 23, 24 that face one another in the major-axis direction of the channel cross section and connect the pair of flat plate sections 21, 22 to one another. One of the curved sections 23, 24 constitutes a joint part at which an outer wall portion 241, which extends from an end of the pair of flat plate sections 21, 22 and constitutes a part of the outer wall of the tubular member 20, and an inner wall portion 242, which extends from an end of the pair of flat plate sections 21, 22 and constitutes a part of the inner wall of the tubular member 20, overlap and are joined by brazing. Further, the inner wall portion 242 is joined in a manner such that the portion facing the outer wall portion 241 is closely adhered to the outer wall portion 241, and the leading end 244 facing the flat section 21 is spaced apart from the flat plate section 21.
    • 要解决的问题:为了提高热交换器用管中的接合部的钎焊性。 构成热交换器用管的管状部件20包括一对平行板部分21,22,它们在通道横截面的短轴方向上平行排列成彼此面对, 以及在通道横截面的长轴方向上彼此相对的一对弯曲部23,24,并且将一对平板部21,22彼此连接。 弯曲部分23,24中的一个构成接合部分,在该接合部分处,从一对平板部分21,22的端部延伸并构成管状部件20的外壁的一部分的外壁部分241, 从一对平板部21,22的端部延伸并构成管状部件20的内壁的一部分的内壁部242重叠并通过钎焊接合。 此外,内壁部242以与面对外壁部241的部分紧密贴合到外壁部241的方式接合,并且面向平坦部21的前端244与平板部分隔开 21.版权所有(C)2012,JPO&INPIT