INDUCTION HEATING CELLS WITH CAULS OVER MANDRELS METHODS OF USING THEREOF

    公开(公告)号:US20200238578A1

    公开(公告)日:2020-07-30

    申请号:US16843596

    申请日:2020-04-08

    摘要: Disclosed herein are induction heating cells and methods of using these cells for processing. An induction heating cell may be used for processing (e.g., consolidating and/or curing a composite layup having a non-planar portion. The induction heating cell comprises a caul, configured to position over and conform to this non-planar portion. Furthermore, the cell comprises a mandrel, configured to position over the caul and force the caul again the surface of the feature. The CTE of the caul may be closer to the CTE of the composite layup than to the CTE of the mandrel. As such, the caul isolates the composite layup from the dimensional changes of the mandrel, driven by temperature fluctuations. At the same time, the caul may conform to the surface of the mandrel, which can be used to define the shape and transfer pressure to the non-planar portion.

    Induction heating cells with cauls over mandrels methods of using thereof

    公开(公告)号:US10654199B2

    公开(公告)日:2020-05-19

    申请号:US15841918

    申请日:2017-12-14

    摘要: Disclosed herein are induction heating cells and methods of using these cells for processing. An induction heating cell may be used for processing (e.g., consolidating and/or curing a composite layup having a non-planar portion. The induction heating cell comprises a caul, configured to position over and conform to this non-planar portion. Furthermore, the cell comprises a mandrel, configured to position over the caul and force the caul again the surface of the feature. The CTE of the caul may be closer to the CTE of the composite layup than to the CTE of the mandrel. As such, the caul isolates the composite layup from the dimensional changes of the mandrel, driven by temperature fluctuations. At the same time, the caul may conform to the surface of the mandrel, which can be used to define the shape and transfer pressure to the non-planar portion.

    Induction heating cells including pressure bladders and methods of using thereof

    公开(公告)号:US10464240B2

    公开(公告)日:2019-11-05

    申请号:US14945615

    申请日:2015-11-19

    摘要: Provided are induction heating cells including pressure bladders used for supporting dies and methods of using these induction heating cells. A pressure bladder may be disposed between a die and a bolster of the cell. Even when the bolster is deformed during operation of the cell, the pressure bladder continues to provide uniform support to the die thereby preserving integrity of the die and prevents its cracking or braking. As such, the cell may be operated at a higher processing pressure inside the cavity formed by the die without further strengthening the bolster. The bolster is allowed to deform without compromising the integrity of the die. The deformation of the bolster is compensated by the shape change of the pressure bladder. The number and/or position of the bladders in the cell may depend on the shape of processed parts.

    METHOD AND DEVICE FOR HEATING A MOULD
    5.
    发明申请

    公开(公告)号:US20190168432A1

    公开(公告)日:2019-06-06

    申请号:US16098859

    申请日:2017-05-10

    申请人: ROCTOOL

    发明人: JOSÉ FEIGENBLUM

    摘要: A mold, particularly for injection molding, includes a shell defining a cavity delimiting a molding surface, a heat accumulator and inductor heater, configured to heat the heat accumulator. A receiving surface, which is a part of a surface of the shell other than the molding surface, is either exposed to or shielded from the heat of heat accumulator, to bring the entire molding surface to a predetermined temperature to inject the material into the cavity.

    SYSTEM FOR ADJUSTING THE EQUILIBRIUM TEMPERATURE OF AN INDUCTIVELY-HEATED SUSCEPTOR

    公开(公告)号:US20190134863A1

    公开(公告)日:2019-05-09

    申请号:US14599475

    申请日:2015-01-17

    IPC分类号: B29C43/52 H05B6/10 B29C33/06

    摘要: A system for inductively heating a workpiece may include an induction coil, at least one susceptor face sheet, and a current controller coupled. The induction coil may be configured to conduct an alternating current and generate a magnetic field in response to the alternating current. The susceptor face sheet may be configured to have a workpiece positioned therewith. The susceptor face sheet may be formed of a ferromagnetic alloy having a Curie temperature and being inductively heatable to an equilibrium temperature approaching the Curie temperature in response to the magnetic field. The current controller may be coupled to the induction coil and may be configured to adjust the alternating current in a manner causing a change in at least one heating parameter of the susceptor face sheet.

    Device and method for heating a mould or tool

    公开(公告)号:US10035286B2

    公开(公告)日:2018-07-31

    申请号:US14655659

    申请日:2013-12-18

    申请人: TCTech Sweden AB

    摘要: The present disclosure relates to a tool such as an injection molding tool or an embossing tool. A heating device including a stack of layers is provided for heating a tool surface. The stack may include a coil carrier layer with a number of wound coils for generating a magnetic field, and a conductive top layer, being adjacent to the tool surface currents are induced in the top layer to heat the surface. Efficient heating may be provided by solutions involving low resistivity layers that lead currents to the top layer without themselves developing heat to any greater extent. A conduction frame device can be provided beneath the top layer and around the perimeter thereof to provide reliable contact with a backing layer. A thermal resistance layer may placed between the intermediate layer and the top layer, and may comprise a heat resistive plastic material such as a polyimide.

    METHOD AND APPARATUS FOR FORMING TOOLING AND ASSOCIATED MATERIALS THEREFROM
    9.
    发明申请
    METHOD AND APPARATUS FOR FORMING TOOLING AND ASSOCIATED MATERIALS THEREFROM 有权
    用于成型工具和相关材料的方法和装置

    公开(公告)号:US20170036310A1

    公开(公告)日:2017-02-09

    申请号:US14818997

    申请日:2015-08-05

    摘要: Described herein is a method of forming tooling used to form a material. The method includes positioning a first susceptor made from a first susceptor material between first and second dies. At least one of the first and second dies includes a forming surface having a desired shape. The method further includes positioning a second susceptor made from a second susceptor material between the first and second dies such that the first susceptor is interposed between the second susceptor and the forming surface. Additionally, the method includes positioning a first bladder between the first and second dies such that the second susceptor is interposed between the first bladder and the first susceptor. Also, the method includes inflating the first bladder to concurrently deform the first susceptor and second susceptor into the desired shape.

    摘要翻译: 这里描述的是形成用于形成材料的模具的方法。 该方法包括将由第一基座材料制成的第一基座定位在第一和第二管芯之间。 第一和第二模具中的至少一个包括具有期望形状的成形表面。 该方法还包括将由第二基座材料制成的第二基座定位在第一和第二模具之间,使得第一基座插入在第二基座和成形表面之间。 此外,该方法包括将第一气囊定位在第一和第二模具之间,使得第二感受器插入在第一气囊和第一感受器之间。 而且,该方法还包括使第一气囊膨胀以使第一感受器和第二感受器同时变形成所需形状。