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提供一种抗崩花掉块性能好的工程机械轮胎。本发明轮胎具有配置于胎面部和/或胎侧中部或下部的有机纤维补强冠带层,适用于矿山等野外作业。用低硫橡胶作为有机纤维补强材料的覆胶。通过低硫橡胶与有机纤维补强材料协作,使有机纤维补强材料覆胶与胎面胶和胎侧胶一致,有助于防止胎面胶崩花和掉块。有机纤维单丝或帘线具有圆形断面,强度为2000旦(2200dtex)以上,韧性为3.5g/旦(31cN/tex)以上,初始强度为20g/旦(177cN/tex),扯断伸长率为10%,收缩率为10%以下。
To provide a good resistance to collapse off the block of construction machinery tires. The tire of the invention has an organic fiber reinforced cap layer disposed in the middle or lower part of the tread portion and / or the sidewall, and is suitable for field operations in mines and the like. Low-sulfur rubber as a reinforcement of organic fiber coating. Through the cooperation of low-sulfur rubber and organic fiber reinforcements, the organic fiber reinforcements are coated with the tread rubber and the side rubber, which helps to prevent the tread rubber from collapsing and dropping off. An organic fiber monofilament or cord has a circular cross section, an intensity of 2000 denier or more, a toughness of 3.5 c / den or more, an initial strength of 20 g / denier (177 cN / tex), elongation at break The rate is 10% and the shrinkage rate is 10% or less.