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13 条记录 (耗时 0.011 秒)

    PRESS FOR IN-SITU MANUFACTURING A THERMOPLASTIC SANDWICH PANEL
    5.
    发明申请
    PRESS FOR IN-SITU MANUFACTURING A THERMOPLASTIC SANDWICH PANEL 有权

    公开(公告)号：US20220097265A1

    公开(公告)日：2022-03-31

    申请号：US17296344

    申请日：2019-12-02

    申请人： FITS HOLDING B.V.

    发明人： Martin Theodoor DE GROOT

    IPC分类号： B29C44/14 ,  B30B15/06 ,  B32B27/06 ,  B32B5/20 ,  B29C44/06 ,  B29C44/10 ,  B29C44/34 ,  B29C44/44

    摘要： A press (10) for manufacturing a sandwich panel comprises a first and second press plate (12; 14) that are movable with respect to one another. The press (10) has a fluid circulation loop for heating and cooling the press plates(12; 14). The fluid circulation N loop comprises a heater (22) for generating a hot fluid connected to a fluid supply conduit(24)in fluid communication with an inlet(18) of at least one internal flow channel (16) in each press plate (12; 14) and connected to a fluid return conduit(26) in fluid communication with an outlet (20) of the at least one internal flow channel(16). The fluid circulation loop is also provided with a controlled expansion valve (34) for cooling by conversion of hot pressurized water into steam, and a water source (38) for slow cooling.

    Method of manufacturing a sandwich panel having an asymmetrical configuration in thickness direction
    6.
    发明授权
    Method of manufacturing a sandwich panel having an asymmetrical configuration in thickness direction 有权

    公开(公告)号：US10737416B2

    公开(公告)日：2020-08-11

    申请号：US15743086

    申请日：2016-07-07

    申请人： FITS HOLDING B.V.

    发明人： Martin Theodoor de Groot

    IPC分类号： B29C44/12 ,  B29C44/34 ,  B29C44/58 ,  B29C33/38 ,  C08J9/14 ,  B29K71/00 ,  B29K79/00 ,  B29K81/00 ,  B29L9/00 ,  B29K9/00

    摘要： The invention relates to a method of manufacturing a sandwich panel having an asymmetrical configuration in the thickness direction. This method comprises the steps of: a) providing a plate shaped assembly of a first cover part and a second cover part and between a core part of a thermoplastic material containing a suitable blowing agent, wherein the second cover part is not equal to the first cover part regarding heat transfer properties; b) heating the assembly under pressure between press tools in a press, thereby adhering the foamed core part to the first and second cover parts; c) foaming of the thermoplastic material in the core part under pressure between press tools in the press and at a foaming temperature by increasing the spacing between the press tools in a controlled manner; d) cooling the foamed sandwich panel under pressure between the press tools; e) removing the thus cooled sandwich panel from the press; and optionally f) drying the sandwich panel; wherein during step a) a first compensation part conforming to the heat transfer properties of the second cover part is positioned at the side of the first cover part and/or a second compensation part conforming to the heat transfer properties of the first cover part is positioned at the side of the second cover part, and wherein during or after step e) the first and/or second compensation parts are removed from the sandwich panel.

    METHOD OF MANUFACTURING A SANDWICH PANEL HAVING AN ASYMMETRICAL CONFIGURATION IN THICKNESS DIRECTION
    7.
    发明申请
    METHOD OF MANUFACTURING A SANDWICH PANEL HAVING AN ASYMMETRICAL CONFIGURATION IN THICKNESS DIRECTION 审中-公开

    公开(公告)号：US20190077058A1

    公开(公告)日：2019-03-14

    申请号：US15743086

    申请日：2016-07-07

    申请人： FITS HOLDING B.V.

    发明人： Martin Theodoor de Groot

    IPC分类号： B29C44/12 ,  B29C33/38 ,  B29C44/34 ,  B29C44/58 ,  C08J9/14

    摘要： The invention relates to a method of manufacturing a sandwich panel having an asymmetrical configuration in the thickness direction. This method comprises the steps of: a) providing a plate shaped assembly of a first cover part and a second cover part and between a core part of a thermoplastic material containing a suitable blowing agent, wherein the second cover part is not equal to the first cover part regarding heat transfer properties; b) heating the assembly under pressure between press tools in a press, thereby adhering the foamed core part to the first and second cover parts; c) foaming of the thermoplastic material in the core part under pressure between press tools in the press and at a foaming temperature by increasing the spacing between the press tools in a controlled manner; d) cooling the foamed sandwich panel under pressure between the press tools; e) removing the thus cooled sandwich panel from the press; and optionally f) drying the sandwich panel; wherein during step a) a first compensation part conforming to the heat transfer properties of the second cover part is positioned at the side of the first cover part and/or a second compensation part conforming to the heat transfer properties of the first cover part is positioned at the side of the second cover part, and wherein during or after step e) the first and/or second compensation parts are removed from the sandwich panel.

    METHOD OF MANUFACTURING SANDWICH PANEL
    9.
    发明申请
    METHOD OF MANUFACTURING SANDWICH PANEL 有权

    公开(公告)号：US20230116066A1

    公开(公告)日：2023-04-13

    申请号：US18078129

    申请日：2022-12-09

    申请人： FITS HOLDING B.V.

    发明人： Martin Theodoor de Groot

    IPC分类号： B29C44/34 ,  B32B5/20 ,  B29C44/12 ,  B29C44/58 ,  B32B5/02 ,  B32B5/24 ,  B32B15/04 ,  B32B27/06 ,  B32B27/20 ,  B32B27/28

    摘要： The invention relates to a method of manufacturing a sandwich panel comprises the steps of:
    a) providing a plate-shaped assembly of a first cover part and a second cover part and between these cover parts a core part of a thermoplastic material containing a physical blowing agent,
    b) heating the assembly resulting from step a) under pressure between press tools in a press to a foaming temperature below the glass transition temperature of the thermoplastic material in the core part, thereby effecting adhesion of the foamed core part to the first and second cover parts
    c) foaming the thermoplastic material in the core part under pressure and at the foaming temperature wherein the spacing between the press tools is increased;
    d) a cooling step of cooling the foamed sandwich panel resulting from step c), while the sandwich panel is maintained under pressure between the press tools;
    e) removing the thus cooled sandwich panel from the press; and
    f) drying the sandwich panel thus obtained;
    wherein the cooling step d) comprises a first substep d1) of cooling the foamed assembly from the foaming temperature to an intermediate temperature in the range of 70-100° C. at a first cooling rate and a second substep d2) of cooling the foamed assembly from the intermediate temperature to ambient temperature at a second cooling rate, the second cooling rate is less than the first cooling rate.

    Method of manufacturing sandwich panel
    10.
    发明授权
    Method of manufacturing sandwich panel 有权

    公开(公告)号：US11524431B2

    公开(公告)日：2022-12-13

    申请号：US15743061

    申请日：2016-07-07

    申请人： FITS HOLDING B.V.

    发明人： Martin Theodoor de Groot

    IPC分类号： B29C44/34 ,  B32B5/20 ,  B29C44/12 ,  B29C44/58 ,  B32B5/02 ,  B32B5/24 ,  B32B15/04 ,  B32B27/06 ,  B32B27/20 ,  B32B27/28 ,  B29K75/00 ,  B29C35/16 ,  B29C71/02

    摘要： The invention relates to a method of manufacturing a sandwich panel comprises the steps of: a) providing a plate-shaped assembly of a first cover part and a second cover part and between these cover parts a core part of a thermoplastic material containing a physical blowing agent, b) heating the assembly resulting from step a) under pressure between press tools in a press to a foaming temperature below the glass transition temperature of the thermoplastic material in the core part, thereby effecting adhesion of the foamed core part to the first and second cover parts c) foaming the thermoplastic material in the core part under pressure and at the foaming temperature wherein the spacing between the press tools is increased; d) a cooling step of cooling the foamed sandwich panel resulting from step c), while the sandwich panel is maintained under pressure between the press tools; e) removing the thus cooled sandwich panel from the press; and f) drying the sandwich panel thus obtained; wherein the cooling step d) comprises.a first substep d1) of cooling the foamed assembly from the foaming temperature to an intermediate temperature in the range of 70-100° C. at a first cooling rate and a second substep d2) of cooling the foamed assembly from the intermediate temperature to ambient temperature at a second cooling rate, the second cooling rate is less than the first cooling rate.