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    Hydraulic presses
    23.
    发明授权
    Hydraulic presses 失效
    液压机

    公开(公告)号：US3808859A

    公开(公告)日：1974-05-07

    申请号：US27644772

    申请日：1972-07-31

    Applicant: CEFILAC

    Inventor： CAMERON I

    IPC: B21C23/21 ,  B21C31/00 ,  B30B15/02 ,  B30B15/16 ,  B21C51/00

    CPC classification number: B21C23/212 ,  B21C23/215 ,  B21C31/00 ,  B30B15/16

    Abstract: A method and apparatus for detecting relative displacement of hydraulic press components such as stem, container die and mandrel. Measurements are taken using suitable detectors such as wide-gap air gauges.

    Abstract translation: 一种用于检测诸如杆，容器模具和心轴的液压机构部件的相对位移的方法和装置。 使用适合的检测器（例如宽间隙气量计）进行测量。

    Method of hot piercing metal billets
    24.
    发明授权
    Method of hot piercing metal billets 失效
    热镀金属材料的方法

    公开(公告)号：US3777528A

    公开(公告)日：1973-12-11

    申请号：US3777528D

    申请日：1970-11-19

    Applicant: CEFILAC

    Inventor： SIRANTOINE A

    IPC: B21C23/01 ,  B21J5/10 ,  B21C23/32

    CPC classification number: B21J5/10 ,  B21C23/01

    Abstract: A billet containing an axially cold drilled cylindrical pilot hole and previously heated to deformation temperature is inserted into a hot piercing press. The pilot hole is flared at its forward end by a hot punching operation in the press itself prior to the application of the lubricant and the expansion operation. The hot punching can be done by a punching tool or by an expansion tool and the force of the press can be transmitted to the expansion tool in the expansion operation directly through a spindle or through the punching tool.

    Abstract translation: 将含有预先加热到变形温度的轴向冷钻圆柱形引导孔的坯料插入热穿孔压机中。 在施加润滑剂和膨胀操作之前，导向孔在其前端通过热冲压本身的热冲压操作而张开。 热冲压可以通过冲压工具或膨胀工具完成，并且压力机的力可以在膨胀操作中直接通过主轴或冲压工具传递到膨胀工具。

    Process for manufacturing tight seals, and seals obtained by this process
    25.
    发明授权
    Process for manufacturing tight seals, and seals obtained by this process 失效
    制造轻质密封的工艺和本工艺获得的密封

    公开(公告)号：US3660184A

    公开(公告)日：1972-05-02

    申请号：US3660184D

    申请日：1970-05-18

    Applicant: CEFILAC

    Inventor： BURELLE PIERRE ,  ENGELHARDT JEAN ALFRED

    IPC: F02F11/00 ,  F16J15/10 ,  B29J5/02

    CPC classification number: F02F11/002 ,  F16J15/102 ,  F16J15/108 ,  Y10T428/2907

    Abstract: Method of forming gaskets by projecting a layer comprising 7090% of a fibrous material and 10-30% of a settable binder onto a supporting sheet, causing the binder to set, and there compressing the layer. An adhesive may be used to secure the layer to the sheet, or the sheet may be treated to prevent adhesion of the layer and removed after the compression step.

    Abstract translation: 通过将包含70-90％的纤维材料的层和10-30％的可固化粘合剂的层投影到支撑片材上形成垫圈的方法，使粘合剂固化，并且压缩该层。 可以使用粘合剂将层固定到片材上，或者可以处理片材以防止层的粘附并且在压缩步骤之后被去除。

    Extrusion mandrel and method
    26.
    发明授权
    Extrusion mandrel and method 失效
    挤出法和方法

    公开(公告)号：US3580038A

    公开(公告)日：1971-05-25

    申请号：US3580038D

    申请日：1968-04-03

    Applicant: CEFILAC

    Inventor： ANDREASSIAN JEAN-MICHEL

    IPC: B21C25/04 ,  B21C23/04 ,  B21B17/02 ,  B21C25/00

    CPC classification number: B21C25/04

    Abstract: An improvement in an extrusion mandrel in combination with the cylindrical part of the mandrel that defines the interior contour of the extruded workpieces which includes a short front member of generally cylindrical configuration but having a cross-sectional diameter and a length less than the cylindrical part and a base member joining the front member to the cylindrical part. In use, the mandrel is positioned so that the short front member always cooperates with the die at the beginning of the extrusion.

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