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    Radial tires having at least two belt plies reinforced with steel monofilaments
    5.
    发明授权
    Radial tires having at least two belt plies reinforced with steel monofilaments 失效
    具有至少两个带钢层的径向轮胎用钢单丝增强

    公开(公告)号：US5858137A

    公开(公告)日：1999-01-12

    申请号：US611391

    申请日：1996-03-06

    申请人： Mahmoud Cherif Assaad ,  Dong Kwang Kim

    发明人： Mahmoud Cherif Assaad ,  Dong Kwang Kim

    IPC分类号： B60C9/00 ,  B60C9/20 ,  B60C9/22 ,  B60C9/18

    CPC分类号： B60C9/0007 ,  B60C9/0064 ,  B60C9/2006 ,  B60C2200/04 ,  Y10T152/10765

    摘要： A pneumatic radial tire includes at least two belt plies reinforced with steel monofilaments inclined at an angle of 10.degree. to 30.degree. with respect to the equatorial plane of the tire, the monofilaments being laid at an end count ranging from 25 to 60 ends per inch and having a diameter of from 0.25 to 0.40 mm, a tensile strength of at least 4080 MPa-(2000.times.D).times.95 percent where D is the filament diameter in millimeters and a fatigue resistance of at least 3500 cycles as measured by the three-roll bending fatigue test. Preferably, the filament diameter ranges from 0.30 to 0.35 mm, the tensile strength of each monofilament is at least 4400 MPa-(2000.times.D).times.95 percent and the fatigue resistance ranges from 3500 to 6000 cycles.

    摘要翻译： 充气子午线轮胎包括至少两个相对于轮胎的赤道面倾斜10°至30°的钢单丝增强的带束帘布层，单丝以每英寸25至60个端部的端部计数 直径为0.25至0.40毫米，拉伸强度至少为4080MPa-（2000×D）×95％，其中D为以毫米为单位的长丝直径，以及通过三辊弯曲测量的至少3500次循环的耐疲劳性 疲劳试验。 优选地，长丝直径范围为0.30至0.35mm，每根单丝的拉伸强度至少为4400MPa-（2000×D）×95％，疲劳强度范围为3500〜6000个循环。

    Steel tire cord with high tensile strength
    7.
    发明授权
    Steel tire cord with high tensile strength 有权
    钢轮胎帘线具有高抗拉强度

    公开(公告)号：US6099797A

    公开(公告)日：2000-08-08

    申请号：US239235

    申请日：1999-01-28

    申请人： Anand Waman Bhagwat ,  Sameer Suresh Vijayakar ,  Dong Kwang Kim

    发明人： Anand Waman Bhagwat ,  Sameer Suresh Vijayakar ,  Dong Kwang Kim

    IPC分类号： C22C38/18

    CPC分类号： C22C38/18

    摘要： This invention reveals steel alloys for use in manufacturing reinforcing wires for rubber products, such as tires. The steel filaments made with such steel alloys have an outstanding combination of strength and ductility. The steel alloys of this invention can be manufactured into filaments having a tensile strength in the range of 4000 MPa to 5000 MPa. Additionally, these can be patented in a low-cost process due to their having a very fast rate of isothermal transformation. This allows the steel in the steel wire being patented to transform from a face-centered cubic microstructure to an essentially body-centered cubic microstructure within a very short period. This invention more specifically discloses a steel alloy composition which is particularly suitable for use in manufacturing reinforcing wire for rubber products which consists essentially of (a) iron, (b) about 1.05 to about 1.7 weight percent carbon, (c) about 0.2 to about 0.8 weight percent manganese, (d) about 0.1 to about 0.8 weight percent silicon, (e) about 0.1 to about 0.7 weight percent chromium, (f) 0.0 to about 0.5 weight percent nickel, (g) 0.0 to about 0.3 weight percent copper, (h) 0.0 to about 0.5 weight percent molybdenum and (i) 0.0 to about 0.5 weight percent vanadium; with the proviso that the carbon equivalent of the steel alloy is within the range of 1.15 to 1.8 weight percent. It is highly preferred for the steel alloys of this invention to contain from about 0.02 to about 0.3 weight percent copper.

    摘要翻译： 本发明揭示了用于制造橡胶制品如轮胎的加强丝的钢合金。 用这种钢合金制成的钢丝具有优异的强度和延展性的组合。 本发明的钢合金可以制造成拉伸强度在4000MPa至5000MPa范围内的长丝。 另外，由于它们具有非常快的等温转化速率，因此可以以低成本的方法获得专利。 这允许钢丝中的钢获得专利，在非常短的时间内从面心立方微结构转变为基本上以身体为中心的立方结构。 本发明更具体地公开了一种钢合金组合物，其特别适用于制造用于橡胶制品的加强丝，其主要由（a）铁，（b）约1.05至约1.7重量％的碳，（c）约0.2至约 0.8重量％的锰，（d）约0.1至约0.8重量％的硅，（e）约0.1至约0.7重量％的铬，（f）0.0至约0.5重量％的镍，（g）0.0至约0.3重量％ ，（h）0.0至约0.5重量％的钼和（i）0.0至约0.5重量％的钒; 条件是钢合金的碳当量在1.15至1.8重量％的范围内。 本发明的钢合金非常优选含有约0.02至约0.3重量百分比的铜。