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    STRETCHING UNIT AS WELL AS METHOD FOR REDUCING NON-UNIFORM TEMPERATURES AND AIR FLOWS IN A FILM STRETCHING UNIT
    2.
    发明公开
    STRETCHING UNIT AS WELL AS METHOD FOR REDUCING NON-UNIFORM TEMPERATURES AND AIR FLOWS IN A FILM STRETCHING UNIT 审中-公开

    公开(公告)号：US20230384033A1

    公开(公告)日：2023-11-30

    申请号：US18324561

    申请日：2023-05-26

    申请人： BRÜCKNER MASCHINENBAU GMBH

    发明人： Tobias HÄUSL

    IPC分类号： F27B9/04 ,  F27B9/28 ,  B29C55/02

    CPC分类号： F27B9/045 ,  F27B9/28 ,  B29C55/02 ,  B29L2007/008

    摘要： A stretching unit for stretching a film is disclosed having an oven and a compensation device. The compensation device includes an air conveyor, the first compensation opening and a second compensation opening, in which the first compensation opening and the second compensation opening open into the oven on opposing sides of a central plane (M) of the oven in the vertical and drawing directions (H, R). The air conveyor is located in terms of flow between the first compensation opening and the second compensation opening, in which the compensation device is configured to remove a volume of air from the oven through one of the compensation openings and to feed the removed volume of air into the oven through the other one of the compensation openings.

    Furnace
    6.
    发明授权
    Furnace 有权

    公开(公告)号：US11603607B2

    公开(公告)日：2023-03-14

    申请号：US16623469

    申请日：2018-06-13

    申请人： EISENMANN SE

    发明人： Matthias Muck ,  Dimitri Sabelfeld

    IPC分类号： D01F9/32 ,  D01F9/22 ,  F27D17/00 ,  F27B9/08 ,  F27B9/28 ,  F27B5/16

    摘要： A furnace for thermal treatment, in particular for carbonization and/or graphitization, of material, in particular fibers, in particular fibers of oxidized polyacrylonitrile PAN. During the thermal treatment, a pyrolysis gas is released from the material. The furnace includes a housing, a process space, which is located in the interior of the housing and is delimited by a process space housing and through which the material can be fed, a heating system for heating a process space atmosphere prevailing in the process space, and an extraction system for suctioning process space atmosphere laden with pyrolysis gas from the process space. The extraction system has at least one suction device having a suction channel, which is delimited by a channel wall and which is connected to the process space by means of a suction opening. The suction opening is arranged in a region of the process space in which, during operation of the furnace a temperature prevails at which no or only moderate chemical reactions occur between the pyrolysis gas and the process space housing and/or the channel wall.

    Method and device for stabilizing precursor fibers for the production of carbon fibers
    7.
    发明授权
    Method and device for stabilizing precursor fibers for the production of carbon fibers 有权

    公开(公告)号：US11486059B2

    公开(公告)日：2022-11-01

    申请号：US16970411

    申请日：2019-03-11

    申请人： CENTROTHERM INTERNATIONAL AG

    发明人： Andreas Keller ,  Gunter Fauth ,  Uwe Ziegler

    IPC分类号： B29C71/02 ,  F27B5/04 ,  F27B9/04 ,  F27B9/28 ,  F27D7/06 ,  D01F9/22 ,  D01D10/02 ,  D01F9/17 ,  D01F9/32 ,  B29C71/00 ,  D02J13/00 ,  F27B9/12

    摘要： The invention relates to a method and to a device for stabilizing precursor fibers for the production of carbon fibers. In the method, precursor fibers are first heated to a first temperature and held at the temperature for a predefined duration. Subsequently, the precursor fibers are heated to at least one second temperature, which is higher than the first temperature, and held at said temperature for a predefined duration. During each heating and between the heating steps, the precursor fibers are in a gas atmosphere having a negative pressure in the range between 12 mbar and 300 mbar and having an oxygen partial pressure of 2.5 to 63 mbar. The device has at least one evacuable, elongate vacuum chamber for feeding the precursor fibers through, at least two lock units and at least one heating unit. At least one lock unit is used for the sealed insertion of precursor fibers into the at least one vacuum chamber, while at least one other lock unit is used for the sealed removal of precursor fibers from the at least one vacuum chamber. The heating unit has at least two individually controllable heating elements, which are suitable for heating the at least one vacuum chamber to at least two different temperatures in heating zones which are adjacent in the longitudinal direction.

    STRIP FLOTATION FURNACE
    8.
    发明申请
    STRIP FLOTATION FURNACE 有权

    公开(公告)号：US20220162719A1

    公开(公告)日：2022-05-26

    申请号：US17433013

    申请日：2020-02-17

    申请人： EBNER Industrieofenbau GmbH

    发明人： Robert EBNER ,  Ulrich PSCHEBEZIN ,  Igor GRUJIC ,  Alexander POCHERDORFER

    IPC分类号： C21D9/00 ,  F27B9/24 ,  F27B9/28 ,  C21D9/63 ,  B65H20/14

    摘要： A strip flotation furnace for controlling the temperature of a metal strip has a flotation nozzle bar extending through the furnace transversely to a strip running direction of the strip. The flotation nozzle bar has two opposing first flotation nozzle rows spaced apart by a central region of the flotation nozzle bar. The rows are set up so that corresponding flotation nozzle jets, with a directional component toward the central region, can be generated to provide pressure cushioning for metal strip guiding. A temperature-control nozzle bar extends transversely to and is spaced apart from the flotation nozzle bar along the strip running direction. The temperature-control nozzle bar has two additional opposing temperature-control nozzle rows spaced apart by an additional temperature-control nozzle bar central region. These rows are set up so that corresponding temperature-control nozzle jets, with a directional component opposite to the additional central region, can be generated.

    TREATMENT MACHINE FOR A FLEXIBLE MATERIAL WEB, IN PARTICULAR A PLASTICS FILM, WHICH CAN BE PASSED THROUGH A TREATMENT FURNACE
    9.
    发明申请
    TREATMENT MACHINE FOR A FLEXIBLE MATERIAL WEB, IN PARTICULAR A PLASTICS FILM, WHICH CAN BE PASSED THROUGH A TREATMENT FURNACE 有权

    公开(公告)号：US20220152884A1

    公开(公告)日：2022-05-19

    申请号：US17530660

    申请日：2021-11-19

    申请人： BRÜCKNER MASCHINENBAU GmbH & CO. KG

    发明人： Christoph HÖGLAUER

    IPC分类号： B29C35/06 ,  B29C35/04 ,  B29C55/16 ,  B05B13/02 ,  F27B9/02 ,  F27B9/28

    摘要： A treatment machine for flexible material webs which can be passed through treatment furnaces is disclosed having at least two successive zones in an extraction direction (A) of the material web, a zone separation device in relation to the extraction direction (A) of the flexible material web. The zone separating device includes at least one air partitioning device (AC) having an injection device (AC-E) which extends transversely to the material web and is designed such that a gaseous fluid flow (S) extending up to the flexible material web is generated above it. The injection device (AC-E) is also designed such that the gaseous fluid flow exiting from the injection device (AC-E) impinges obliquely in the direction of the flexible material web and thus on the material web plane (E) formed by the material web at a blowing angle (α).

    Oven for the thermal treatment of filaments
    10.
    发明授权
    Oven for the thermal treatment of filaments 有权

    公开(公告)号：US10895021B2

    公开(公告)日：2021-01-19

    申请号：US16084409

    申请日：2017-01-27

    申请人： Manuel Torres Martinez

    发明人： Manuel Torres Martinez

    IPC分类号： D01D10/04 ,  B65H57/26 ,  D01F9/32 ,  F27B9/28 ,  F27B9/30 ,  F27D3/12

    摘要： The invention relates to an oven for the thermal treatment of filaments, which comprises: an oven body (1) having a height greater than its width, with a first end (1.1) and a second end (1.2); conduction means (2) for conducting the filaments, comprising first rotary supports (2.1) and second rotary supports (2.2) between which the filaments are threaded; a platform (3) on which the conduction means (2) for conducting the filaments are arranged and which is pivotably arranged at the first end (1.1) of the oven body (1); and attachment means (4) attaching the platform (3) to the second end (1.2) of the oven body (1), transferring the movements of the second end (1.2) of the oven body (1) to the platform (3), such that it assures that the filaments remain parallel to one another, preventing them from becoming deformed or from coming into contact with one another.