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    • 1. 发明授权
    • Process for producing flat heat exchange tubes
    • 生产扁平换热管的方法
    • US5784776A
    • 1998-07-28
    • US774216
    • 1996-12-27
    • Yoshihiro SaitoTakashi TamuraSatoru KaimuraSatoshi HozumiMasashi SakaguchiHirosaburo HiranoYuji YamamotoShinji Ito
    • Yoshihiro SaitoTakashi TamuraSatoru KaimuraSatoshi HozumiMasashi SakaguchiHirosaburo HiranoYuji YamamotoShinji Ito
    • B21B1/22B21C37/15B21H8/00F28D1/03F28F1/02F28F3/04B23P15/26
    • B21H8/00B21B1/227B21C37/151F28D1/0316F28D1/0391F28F1/022F28F3/04F28F2250/04Y10T29/49377Y10T29/49378Y10T29/53122
    • A process for producing a flat heat exchange tube having parallel refrigerant passages in its interior and comprising flat upper and lower walls, opposite side walls and a plurality of reinforcing walls connected between the upper and lower walls, extending longitudinally of the tube and spaced apart from one another by a predetermined distance, using a rolling mill including a central work roll and a plurality of planetary work rolls arranged around a portion of the periphery of the central work roll and spaced apart circumferentially thereof, the central work roll being formed with parallel annular grooves in the periphery thereof. An aluminum sheet blank including a brazing sheet is rolled by the mill and thereby thinned to a predetermined thickness to form a flat portion serving as the lower wall, cause the annular grooves at opposite roll ends to form upright portions providing the respective side walls and the other annular grooves to form vertical ridges providing the reinforcing walls, the upright portions and the vertical ridges projecting from the flat portion integrally therewith. An aluminum sheet comprising a brazing sheet is placed over all the ridges to provide the upper wall and joined to the upright portions to make the upright portions serve as the opposite side walls, and the ridges of the lower wall are joined to the upper wall to form the reinforcing walls.
    • 一种制造在其内部具有平行的制冷剂通道的平坦的热交换管的方法,包括平的上壁和下壁,相对的侧壁和连接在上壁和下壁之间的多个加强壁,其纵向延伸并且与管壁间隔开 使用包括中心工作辊和围绕中心工作辊的周边的一部分周围布置并围绕其周向间隔开的多个行星工作辊的轧机彼此间隔开,中心工作辊形成有平行的环形 在其周边的凹槽。 包括钎焊板的铝板坯料被轧机轧制,从而变薄到预定厚度,以形成用作下壁的平坦部分,使得相对的辊端部处的环形槽形成提供相应的侧壁和 其它环形槽,以形成提供加强壁的竖直脊,垂直部分和垂直隆起部与该平坦部分一体突出。 将包括钎焊片的铝片放置在所有脊上以提供上壁并连接到直立部分,以使直立部分用作相对的侧壁,并且下壁的脊部与上壁接合以 形成加强墙。
    • 8. 发明授权
    • Beach cleaner
    • 沙滩清洁
    • US09068308B2
    • 2015-06-30
    • US13883307
    • 2010-12-09
    • Shinji ItoTatsuo MasudaYasuji Hashimoto
    • Shinji ItoTatsuo MasudaYasuji Hashimoto
    • A01B43/00E01H12/00
    • E01H12/002
    • A beach cleaner for recovering relatively heavy garbage or stones while minimizing the amount of sand entering a garbage recovery unit. The beach cleaner includes a frame formed by a longitudinal member and a lateral member. A towed portion is provided at the front portion of the frame for towing by a tow vehicle. A separator is provided at the lower front portion of the frame to separate and scrape garbage from sandy ground. A recovery unit is provided behind the separator to collect garbage scraped onto the mesh member. At least one separation rod unit is provided having a plurality of longitudinal members and a lateral member for joining the rear ends of the respective longitudinal members. The front end of at least one separation rod unit is secured to the separator so as to be turnable in the up-and-down direction.
    • 用于恢复相对较重的垃圾或石头的沙滩清洁剂,同时尽量减少进入垃圾回收装置的沙量。 海滩清洁器包括由纵向构件和横向构件形成的框架。 牵引部分设置在框架的前部,用拖车牵引。 在框架的下前部设有一个分离器,以分离和刮擦沙地的垃圾。 在分离器后面设置一个回收单元,以收集刮到网状构件上的垃圾。 提供至少一个分离杆单元,其具有多个纵向构件和用于连接各个纵向构件的后端的侧向构件。 至少一个分离杆单元的前端固定到分离器上,以便能够在上下方向上转动。