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    • 81. 发明申请
    • 骨格部材
    • WO2022234792A1
    • 2022-11-10
    • PCT/JP2022/018963
    • 2022-04-26
    • 日本製鉄株式会社
    • 相藤 孝博戸田 由梨田畑 亮
    • B21D22/20B21D22/26B62D21/15B21C37/15
    • この骨格部材は、鋼板をホットスタンプすることにより形成される骨格部材である。骨格部材は、長手方向に垂直な断面が閉断面である閉断面部を有し、閉断面部は、当該断面における最大外形寸法よりも曲率半径が大きい部位である少なくとも二つの平坦部位と、二つの平坦部位の間に形成される凹ビード部位と、を有する。凹ビード部位は、曲率半径が50mm以上である一対の壁部であって、二つの平坦部位における互いに対向する端部から、閉断面内部に向かい屈曲する一対の屈曲部を介して閉断面部の内側に向かって突出する一対の壁部を有する。壁部における板厚中心部のビッカース硬度が520Hv以上であり、壁部の幅が、有効幅Weの0.5倍以上2.5倍以下であり、壁部の表層部における硬さ頻度分布の標準偏差を、壁部の板厚中心部における硬さ頻度分布の標準偏差で割って求められる標準偏差比が1.0より小さい。
    • 85. 发明申请
    • AIR CONDUIT SPIRALLY WOUND AND PROVIDED WITH A PLURALITY OF HOLES, RELATED MANUFACTURING MACHINE AND METHOD AND RELATED STRIP
    • WO2019229518A1
    • 2019-12-05
    • PCT/IB2019/000459
    • 2019-05-24
    • ZEFFIRO S.R.L.
    • GUASTI, Gino
    • B21C37/12B21C37/15
    • Apparatus (10) for forming a spirally wound conduit (14) from a flat strip (2) comprising: a forming device (6) comprising a bending section (7) configured to spiralling bend the strip (2) and a joining section (8) configured to join opposite longitudinal sides (2A,2B) of the strip (2) each other; a feeding device (11) of the strip (2) along a feeding direction (F) parallel to the longitudinal edges (9) of the strip (2); a cutting device (1) arranged upstream the forming device (6) comprising a cutting head (3) for cutting the strip (2) and moving means configured to move said cutting head (3) along a plurality of moving axes (Χ,Υ,Ζ) orthogonal to each other; a control unit (18) configured to command said moving means according to diameter (D) of the conduit (14) to be realized and to the width (B) of the strip (2) so that said cutting head (3) realizes on the strip (2) a plurality of arrays (12) of holes (13) each one tilted with respect to one of the longitudinal edges (9) of the strip (2) by an angle (a) function of the width (B) of the strip (2) and of the diameter (D) of the spiral conduit (14) to be realized. The present invention relates also to a air conduit (14), a perforated strip (2') and a coil (19) of a perforated strip (2') comprising a plurality of said arrays (12) of holes (13) wherein said holes (13) comprise at least two different shapes.
    • 86. 发明申请
    • A TUBE STRUCTURE AND A METHOD FOR MANUFACTORING A TUBE STRUCTURE
    • WO2018229262A1
    • 2018-12-20
    • PCT/EP2018/065979
    • 2018-06-15
    • SANDVIK INTELLECTUAL PROPERTY AB
    • HEDBLOM, Erika
    • B21C37/15B21C1/22B21C1/24C09K5/14F16L9/02G01M3/16
    • The present disclosure relates to a tube structure comprising an inner tube of metal and an outer tube of metal, wherein the inner tube extends in the outer tube, and wherein either the inner tube and the outer tube are mechanically tight fitted over the entire length of the inner tube, at least one space in a radial direction of the tube structure in the form of a groove extends at least in an outer surface of the inner tube or in an inner surface of the outer tube, and the at least one space extends in a longitudinal direction of the inner tube and over an entire longitudinal extension of the inner tube, or a spacer tube is located between the inner tube and the outer tube, the inner tube, the outer tube and the spacer tube are mechanically tight fitted over the entire length of the spacer tube, the spacer tube comprises at least one space in the form a slit extending in a radial direction of the tube structure from an outer surface of the inner tube to an inner surface of the outer tube, the at least one space extends in a longitudinal direction of the spacer tube and over an entire longitudinal extension of the spacer tube, and wherein the at least one space is at least partially filled with a thermal interface material providing a thermal contact between the outer tube and the inner tube.