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    • 5. 发明授权
    • Internally groove forming apparatus for heat exchanging pipes
    • 用于热交换管的内部槽形成装置
    • US4142392A
    • 1979-03-06
    • US832540
    • 1977-09-12
    • Izumi OchiaiMasahiro MiyagiYoichi Wakabayashi
    • Izumi OchiaiMasahiro MiyagiYoichi Wakabayashi
    • B21C1/22B21C23/10B21C37/20B21D17/00B21D53/06B21H3/00B21H7/18B21D17/04
    • B21H7/187B21C37/202B21C37/207
    • An internal groove forming apparatus for heat exchanging pipes, having a cylindrical holder adapted to be loosely fitted in a heat exchanging pipe in concentric relationship, and a plurality of groove forming rolling tools arranged on the holder in a plurality of axially spaced, circumferentially oriented rows and rotatably supported on the holder in such a manner that the rolling tools of one of the two adjacent rows are disposed in staggered relationship with respect to those of the other and an imaginary circle circumscribing the rolling tools is interposed between an outer peripheral surface and an inner peripheral surface of the heat exchanging pipe. Axial relative movements of the heat exchanging pipe and the holder enable the rolling tools to form a number of substantially axially oriented grooves on the inner peripheral surface of the heat exchanging pipe.
    • 一种用于热交换管的内槽形成装置,具有适于以同心的方式松散地装配在热交换管中的圆柱形保持器,以及多个槽形成滚动工具,该多个槽形成滚动工具以多个轴向间隔开的周向取向的排 并且以这样的方式可旋转地支撑在保持器上,使得两个相邻行中的一个的滚动工具相对于另一个排列成交错关系,并且围绕滚动工具的假想圆插入在外周表面和 热交换管的内周面。 热交换管和保持器的轴向相对运动使得轧制工具能够在热交换管的内周表面上形成多个基本轴向定向的槽。
    • 6. 发明授权
    • Heat exchanger and process for producing the same
    • 热交换器及其制造方法
    • US4898232A
    • 1990-02-06
    • US178610
    • 1988-04-07
    • Izumi OchiaiMasahiro MiyagiYoshio NozawaYukio Kitayama, deceased
    • Izumi OchiaiMasahiro MiyagiYoshio NozawaYukio Kitayama, deceased
    • B21D53/08F28D1/047F28F1/32
    • B21D53/085F28D1/0477F28F1/32Y10T29/49359
    • A heat exchanger having different types of fins of different widths arranged such that different types of fins are arranged alternately can be efficiently produced by a process which has the steps of: forming a plurality of rows of refrigerant-tube holes in a hoop; forming lines of cutting which extend parallel to a direction of feed of the hoop at positions which are offset from the midpoint between adjacent rows of the holes, the lines of cutting having a length smaller than the longitudinal size of fins to be obtained; forming slits or elongated holes in positions of the hoop to which the ends of the lines of cutting is to be extended, the slits or elongated holes having longitudinal axes extending in the direction crossing the direction of feed of the hoop; cutting the hoop along a transverse line of cutting which extends in the direction crossing the direction of feed of the hoop past regions between adjacent slits or elongated holes which oppose to each other in the direction of feed of the hoop, thus severing a group of fins having a plurality of fins of different types connected integrally; stacking the succesively severed groups of fins; inserting refrigerant tubes into the holes in the fins and expanding the tubes so as to fix the tubes to the fins in the successive groups; and cutting the stacked successive groups of fins at positions between adjacent rows of the holes and within the regions of the slits or the elongated holes.
    • 可以通过以下步骤有效地制造具有不同类型的不同宽度的不同类型的翅片的热交换器,以便使不同类型的翅片交替布置,其方法是:在箍中形成多排制冷剂管孔; 形成平行于所述环的进给方向延伸的切割线,所述切割线偏离所述孔的相邻行之间的中点,所述切割线的长度小于要获得的翅片的纵向尺寸; 在箍的端部将要延伸的箍的位置处形成狭缝或细长孔,所述狭缝或长孔具有沿与箍的进给方向交叉的方向延伸的纵向轴线; 沿着横向的横切线切割环,该横向线沿与环箍进给方向相对的相邻狭缝或长孔之间的环箍过去区域的进给方向延伸的方向延伸,从而切断一组翅片 具有多个不同类型的翅片一体连接; 堆叠连续切断的翅片组; 将制冷剂管插入翼片中的孔中并使管膨胀以将管固定在连续组中的翅片上; 以及在所述孔的相邻行之间的位置以及在所述狭缝或所述细长孔的区域内的位置处切割所述堆叠的连续的翅片组。
    • 9. 发明授权
    • Method of production of a part formed with an opening
    • 用开口形成的零件的制造方法
    • US4583675A
    • 1986-04-22
    • US755219
    • 1985-07-15
    • Izumi OchiaiKatuo MatuiTadaaki Ayabe
    • Izumi OchiaiKatuo MatuiTadaaki Ayabe
    • B21D53/16B21D11/08B21D19/08B21D53/18B23K11/10
    • B21D53/18
    • A method of production of a part formed with an opening wherein a metal strip material is subjected to rolling at its outer peripheral portion to have its thickness slightly reduced and shape the metal strip material into a ring-shaped blank, and at least one of inner and outer peripheral portions of the ring-shaped blank is drawn by a press to form at least one flange. The metal strip is supported in coil form on an uncoiler and payed out therefrom and subjected to a straightening before being subjected to rolling. When the metal strip material is rolled, its inner side is wrinkled. The ring-shaped blank is cut and a projection is formed at one end portion and superposed on the other end portion to be joined by electric spot welding to provide a completed ring-shaped blank. When the blank is drawn to form the flanges, by virtue of the wrinkles and thinned outer peripheral portion, the thickness of the part becomes substantially uniform.
    • 一种制造形成有开口的部分的方法,其中金属带材在其外周部分受到轧制以使其厚度稍微减小并且将金属带材形成为环形坯料,并且内部 并且环形坯料的外周部分通过压力机拉伸以形成至少一个凸缘。 金属带以螺旋形式支撑在开卷机上并从中取出并在经受轧制之前进行矫直。 当金属带材卷起时,其内侧起皱。 环形坯料被切割,并且在一个端部处形成突起,并且通过电焊点叠加在待连接的另一端部上,以提供完整的环形坯料。 当坯料被拉伸以形成凸缘时,由于褶皱和变薄的外周部分,部件的厚度变得基本均匀。