| 摘要 |
<p>A 3 x δ steel cord structure is characterized by a part load elongation which lies between 0.2 and 0.45 %, by a high tensile strength and by a diameter δ lying in the range of 0.27 to 0.35 mm. A preferable twist pitch is 14 mm. The above-mentioned values of part load elongation and of diameter ensure a uniforme rubber penetration independent of the pay-off tension used in the tire building process and a maintenance of the tensile modulus.</p> |
