发明名称 |
HIGH ELONGATION STEEL CORD WITH PREFORMED STRANDS |
摘要 |
A steel cord (30) with a high elongation at break of at least 5% comprises n strands (20), each of said strands (20) has m filaments (10) twisted together, n ranges from 2 to 7. m ranges from 2 to 9. The strands and the filaments are twisted in a same direction. The lay length of the cord is Lc and the lay length of said strand is Ls. The ratio of Ls to Lc (Ls/Lc) ranges from 0.25 to 1. Lc ranges from 16 mm to 26 mm. The strands are helically preformed. The E-modulus of the cord is more than 150000 N/mm2. The helical preforming of the strands allows to obtain a high elongation at break and a high E-modulus despite its long lay length Lc. |
申请公布号 |
US2012011823(A1) |
申请公布日期 |
2012.01.19 |
申请号 |
US201013257474 |
申请日期 |
2010.03.09 |
申请人 |
DEL RIO RODRIGUEZ JAVIER;WOSTYN STEVEN;NV BEKAERT SA |
发明人 |
DEL RIO RODRIGUEZ JAVIER;WOSTYN STEVEN |
分类号 |
D07B1/06 |
主分类号 |
D07B1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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