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    WELDING EQUIPMENT HAVING HEATER FOR HEATING TAPE OF THERMOPLASTIC FIBER COMPOSITE MATERIAL
    1.
    发明专利
    WELDING EQUIPMENT HAVING HEATER FOR HEATING TAPE OF THERMOPLASTIC FIBER COMPOSITE MATERIAL 失效

    公开(公告)号：JPH1058542A

    公开(公告)日：1998-03-03

    申请号：JP17667797

    申请日：1997-07-02

    Applicant: ABB RESEARCH LTD

    Inventor： JOHNSON BRUCE ,  MALLICK VISHAL ,  MEYNARD FRANCOIS

    IPC: B29C65/00 ,  B29C65/02 ,  B29C65/10 ,  B29C65/14 ,  B29C65/20 ,  B29K105/06 ,  B29L7/00

    Abstract: PROBLEM TO BE SOLVED: To heat a tape of fiber composite material over a wide area at a high speed so as to obtain a high speed welding by arranging at least one extending heating element in a heater. SOLUTION: A heater comprises at least two partial heaters controllable individually. In each of the partial heaters, at least one heating element is arranged. A fiber composite material tape 16 is sent to a heater 14 through a bottom plate 17. The heater 14 comprises a supplying conductor 6 for supplying hot gas. The fiber composite material tapes 15 and 16 are heated at their surfaces facing the heater 14 by the heater 14 up to at least a melting point of the base material of the fiber composite material tape. Accordingly, the fiber composite material tapes 15 and 16 are heated to the melting point or higher of the thermoplastic base material over only small parts of their thickness.

    Continuous production of hot-bonded fiber composite for e.g. advanced rotary machines, employs resilient smoothing head shimmying ultrasonically over fibers, exerting transverse pressure whilst avoiding parallel stressing
    6.
    发明专利
    Continuous production of hot-bonded fiber composite for e.g. advanced rotary machines, employs resilient smoothing head shimmying ultrasonically over fibers, exerting transverse pressure whilst avoiding parallel stressing 未知

    公开(公告)号：DE19903516A1

    公开(公告)日：2000-08-03

    申请号：DE19903516

    申请日：1999-01-29

    Applicant: ABB RESEARCH LTD

    Inventor： AHRENS MARKUS ,  MALLICK VISHAL

    IPC: B29C70/54 ,  B29C70/38

    Abstract: The resilient planar section (1) of the pressure head is controlled to undergo wavy deformation. The section (1) moves relative to the fiber structure (4), leaving virtually no (parallel) shear or thrust forces acting upon it (4). An Independent claim is included for the corresponding method of bonding a fiber structure to a 2- or 3-dimensional surface. In moving the fibers relative to the pressing head, a characteristic velocity is adopted, consistent with continuous wavy deformation of the resilient planar section (1) during movement (tuning implication). Preferred features: The planar section (1) has two opposite principal surfaces. The first is in contact with the fibers, the second is connected to an actuator (6). The actuator is controlled to cause deformation of the planar section towards the fibrous structure lying against the surface (3) to which bonding will take place. The actuator (6) is linearly-extensible in a preferred direction (normal or else unspecified), and also capable of contraction. The actuator is constructed to transmit ultrasonic waves. At one end, the actuator is held firm. Its other free ends are connected to the resilient planar section. On the second main surface of this planar section, numbers of actuators are arranged in a pattern. The pressing head has a number of such planar elements, arranged in a further pattern. The resilient planar element is transparent and/or air permeable. The pressing head is vertically above the fibers, applying pressure to them from the resilient section, when the actuators are extended. In this state, no shear forces are exerted on the fibers. The head moves relative to the fibers. A relative motion between pressure head and fibers results in two characteristic modes of contact between them.

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