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公开(公告)号：US20190152528A1
公开(公告)日：2019-05-23
申请号：US16301780
申请日：2017-06-05
发明人： Satoshi HIROSE , Yuichi ISHIMORI , Hiroshi FUKUCHI
摘要： A metal pipe 1 has a quadrangular cross section. The metal pipe 1 includes a pair of side walls 11 and 12 facing each other and having a height H, a top portion 13 connected to an upper edge of each of the pair of side walls 11 and 12, and a bottom portion 14 connected to a lower edge of each of the pair of side walls 11 and 12. The metal pipe 1 has a length six times the height H of the side walls 11 and 12 or more. Each of the pair of side walls 11 and 12 includes a high-strength portion 11A or 12A and a pair of low-strength portions 11B or 12B. Each high-strength portion 11A or 12A has a dimension not less than (⅔) H and not more than 3 H as measured in the longitudinal direction of the metal pipe, the high-strength portions forming opposite portions of the pair of side walls 11 and 12, each high-strength portion having a yield strength not less than 500 MPa. The low-strength portions 11B or 12B sandwich the high-strength portion 11A or 12A as determined along the longitudinal direction of the metal pipe, each low-strength portion having a yield strength of CO to 85% of that of the high-strength portion 11A or 12A.
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公开(公告)号：US20160320128A1
公开(公告)日：2016-11-03
申请号：US15108975
申请日：2015-01-23
发明人： Hiroshi FUKUCHI , Naruhiko NOMURA , Atsushi SETO
CPC分类号： F27D3/12 , B21D22/022 , B21D22/208 , B21D53/88 , F27D3/0024 , F27D13/00 , F27D2003/0075 , F27D2099/0088 , F27M2001/1565 , F27M2003/02
摘要： A steel sheet heating method that heats a steel sheet (K) to be pressed before hot press molding includes: bringing the steel sheet into a heating furnace (10) including a heater (15) on an inside surface of the heating furnace in a state where the steel sheet is supported in a vertical direction while an unnecessary portion of the steel sheet that becomes unnecessary after molding is fixedly supported by a support member (30); and performing heating at a prescribed temperature in the heating furnace, then taking the steel sheet out of the heating furnace, and after that cutting and removing the unnecessary portion before hot press molding or during hot press molding.
摘要翻译： 在热压成型之前对被压制的钢板（K）进行加热的钢板加热方法包括：将钢板在加热炉内部的加热炉（10）内加热到加热炉 其中钢板沿垂直方向支撑，而在成型后变得不必要的钢板的不必要部分由支撑构件（30）固定地支撑; 在加热炉中进行规定温度的加热，然后将钢板从加热炉中取出，然后在热压成型前或热压成型时切割除去不需要的部分。
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3.发明申请公开(公告)号：US20160167101A1
公开(公告)日：2016-06-16
申请号：US14907730
申请日：2014-09-11
发明人： Hiroshi FUKUCHI , Naruhiko NOMURA , Atsushi SETO
CPC分类号： B21D37/16 , B21D22/022 , B21D22/208
摘要： In hot press forming a thin steel sheet K, when cooling the thin steel sheet K by supplying a refrigerant to an ejection hole (27) communicated from a supply path (28) inside a lower mold (12), precooling in which an ejection amount per unit time period of the refrigerant from the ejection hole (27) is suppressed is carried out, and thereafter, main cooling is carried out by increasing the ejection amount per unit time period.
摘要翻译： 在形成薄钢板K的热压机中，通过向从下模具（12）内的供给路径（28）连通的喷出孔（27）供给制冷剂来冷却薄钢板K.其中，喷射量 从排出孔（27）的制冷剂的每单位时间段被抑制，然后通过增加每单位时间段的喷射量来进行主冷却。
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公开(公告)号：US20180304927A1
公开(公告)日：2018-10-25
申请号：US15765543
申请日：2016-10-11
发明人： Satoshi HIROSE , Yuichi ISHIMORI , Hiroshi FUKUCHI
摘要： A structural member (10) includes: a hat member (1); and a closing plate (2). The hat member (1) includes: a top-surface portion (1a); a pair of side walls (1b) extending from both edges of the top-surface portion (1a); and flanges (1c). The closing plate (2) is in contact with the flanges (1c). Each of the side walls (1b) includes a low-strength portion (1s) extending from one edge of the side wall (1b) to a position at a distance Sh. The distance Sh is 20 to 40% of the height H of the side wall (1b). The yield strength of the low-strength portion (1s) is 60 to 85% of the yield strength of the side wall (1b) as measured at a position (1mid) of one-half of the height of the side wall (1b).
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