Motorcycle tire and method for manufacturing the same
    42.
    发明授权
    Motorcycle tire and method for manufacturing the same 失效
    摩托车轮胎及其制造方法

    公开(公告)号:US08479792B2

    公开(公告)日:2013-07-09

    申请号:US12632443

    申请日:2009-12-07

    Applicant: Toru Fukumoto

    Inventor: Toru Fukumoto

    Abstract: A motorcycle tire comprises: a toroidal carcass comprising two carcass plies of cords arranged at an angle of from 20 to 80 degrees with respect to the tire circumferential direction; and a band comprising at least one ply of at least one helically wound cord disposed radially outside the carcass. The band cord is made of steel filaments of 0.08 to 0.20 mm diameter twisted together into a L×M×N structure. The band cord has a low tensile elastic modulus range and a high tensile elastic modulus range, wherein an inflection point between the low tensile elastic modulus range and the high tensile elastic modulus range lies between 2% elongation and 7% elongation of the cord, and a tensile force required to cause 2% elongation of the band cord is not more than 60 Newton.

    Abstract translation: 摩托车轮胎包括:环形胎体,其包括相对于轮胎圆周方向以20至80度的角度布置的两个胎体层帘布层; 以及包括沿胎体径向设置的至少一个螺旋缠绕绳索的至少一层的带。 带束线由直径为0.08至0.20mm的钢丝绞合在一起形成L×M×N结构。 带状帘线具有低拉伸弹性模量范围和高拉伸弹性模量范围,其中低拉伸弹性模量范围和高拉伸弹性模量范围之间的拐点在绳索的2%伸长率和7%伸长率之间, 使带束带伸长2%所需的张力不大于60牛顿。

    High-strength prestressing strand, method for manufacturing the same, and concrete construction using the same
    44.
    发明授权
    High-strength prestressing strand, method for manufacturing the same, and concrete construction using the same 有权
    高强度预应力钢筋,其制造方法及使用其的混凝土结构

    公开(公告)号:US07861507B2

    公开(公告)日:2011-01-04

    申请号:US11993454

    申请日:2007-02-21

    Abstract: In one aspect, the present disclosure relates to a high-strength prestressing strand having a seven-wire structure in which one core wire and six outer wires are stranded. An external diameter of the strand is from 15.0 mm to 16.1 mm, a total cross-sectional area of the strand is 135 mm2 or more, and a load at 0.2% permanent elongation is 266 kN or more. A relaxation value measured after a 1000-hour relaxation test is 2.5% or lower and a diameter of the core wire is 5.35±0.3 mm and a diameter of the outer wires is 5.15±0.25 mm. The core wire and the outer wires each have a composition of at least 0.90% carbon. The prestressing strand is manufactured by stranding the core wire and outer wires, giving a stretching treatment, and giving a bluing treatment at a temperature of 380° C. or more and 430° C. or less after or at the same time with the stretching treatment.

    Abstract translation: 一方面,本公开内容涉及一种具有七线结构的高强度预应力绞线,其中一根芯线和六根外线绞合。 股线的外径为15.0mm至16.1mm,股线的总横截面面积为135mm 2以上,0.2%永久伸长时的负荷为266kN以上。 1000小时松弛试验后测定的松弛值为2.5%以下,芯线直径为5.35±0.3mm,外线直径为5.15±0.25mm。 芯线和外线各自具有至少0.90%碳的组成。 预应力绳是通过将芯线和外线绞合制成的,进行拉伸处理,并且在380℃以上且430℃以下的温度下进行蓝色处理,或者与拉伸同时进行拉伸处理 治疗。

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