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    Steel wire bead for tyres
    1.
    发明公开
    Steel wire bead for tyres 审中-公开
    Reifenwulstkern mitStahldrähten

    公开(公告)号：EP1103390A1

    公开(公告)日：2001-05-30

    申请号：EP99203946.1

    申请日：1999-11-23

    申请人： Bekaert Naamloze Vennootschap

    发明人： Dambre, Paul

    IPC分类号： B60C15/04 ,  B29D30/48

    CPC分类号： B60C15/04 ,  B29D30/48 ,  B60C2015/048

    摘要： A bead reinforcement structure (10) has at least one steel wire which makes several windings which build several layers, amongst which a radially inner layer and a radially outer layer. Each of said layers are built of one or more of windings so as to form a polygonal cross-sectional from The wire has a leading end (23) and a trailing end. The leading end (23) and the trailing end are positioned in a winding different from the left (22) or right winding (20) of the radially most inner layer.

    摘要翻译： 胎圈加强结构（10）具有至少一根钢丝，其形成几个构成若干层的绕组，其中包括径向内层和径向外层。 每个所述层由一个或多个绕组构成以形成多边形横截面。该线具有前端（23）和后端。 前端（23）和后端位于与径向最内层的左（22）或右卷（20）不同的绕组中。

    PROCEDE ET INSTALLATION POUR LA MESURE D'EPAISSEUR DE COUCHE CONDUCTRICE NON FERROMAGNETIQUE SUR UN SUBSTRAT CONDUCTEUR FERROMAGNETIQUE
    5.
    发明公开
    PROCEDE ET INSTALLATION POUR LA MESURE D'EPAISSEUR DE COUCHE CONDUCTRICE NON FERROMAGNETIQUE SUR UN SUBSTRAT CONDUCTEUR FERROMAGNETIQUE 失效
    迪克官员测量的方法和装置未经铁磁性层上执行FERRO磁性基板

    公开(公告)号：EP0835422A1

    公开(公告)日：1998-04-15

    申请号：EP96922828.0

    申请日：1996-06-18

    申请人： Bekaert Naamloze Vennootschap

    发明人： DE HALLEUX, Benoit ,  DE LIMBURG STIRUM, Bruno

    IPC分类号： G01B ,  G01B1 ,  G01B7 ,  G01N27

    CPC分类号： G01B7/085

    摘要： A method for measuring the product of the layer conductivity times the layer thickness in the case of an object consisting of a substrate made of a ferromagnetic electrically conductive material and covered with a non-ferromagnetic electrically conductive coating layer. The method comprises the steps of placing an inductor generating a variable magnetic field in a space adjacent to the object, measuring, with a sensor consisting of at least one defined sensing surface, two quantities proportional to the parts of the time derivative of the magnetic flux generated concomitantly in the sensing surface by the inductor and the object, in phase and in quadrature with an electrical reference signal, concomitantly using two different functions of the two measurements by defining an experimental point determined by considering said two functions as the two input quantities of a first abacus that cannot be reduced to an equivalent single-input abacus, which is not dependent on the conductivity of the layer and the conductivity and permeability of the substrate, but is dependent on the characteristics of the inductor-object-sensor system and the variable magnetic field generated by the inductor, said abacus consisting of a set of non-secant curves each corresponding to a different value of the product of the layer conductivity times the layer thickness, and determining on the abacus which curve passes through the point corresponding to the measurement, then deducing therefrom the value of the product of the layer conductivity times the layer thickness.