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济南一拖拉机轮胎充气时发生爆炸 2人被崩1死1伤

2017-07-01 18:55:17   山东商报 

轮胎爆炸的威力到底多大?

轮胎爆炸的威力到底多大?

竟能不断造成死亡惨剧

来听听专业人士怎么说:

轮胎经营店:

破口越小则冲击力越大

“爆炸瞬间像个手榴弹”

济南市一家专门经营轮胎门店的负责人告诉记者,单论普通自重两吨左右的小轿车,轮胎的标准胎压是2.5个大气压。大货车轮胎属于载重胎,一般胎压都要达到7到10个大气压,有的甚至到12个大气压。

上述负责人告诉记者他们只负责修小汽车的轮胎,那种大货车的轮胎太危险,一旦发生爆炸威力堪比手榴弹,破口越小则冲击力越大,爆炸点近10米范围内都属于危险区域。

该负责人称,一般轮胎爆炸有三个原因:一是轮胎本身质量有问题;二是轮胎用的时间较长,轮胎钢圈、包括橡胶等本身严重老化,承受不了压力;三就是胎压过高。“如果司机在开车时能感觉出轮胎异常,很有可能是轮胎气压过高,胎压过高之后就没有缓冲力,就会感觉出异常来。”该负责人说,“有些大货车为了多运货物,可能充的气会偏高。”

高中物理老师:

爆发力相当于

四五个成年人砸向1人

山东师范大学附属中学研究物理方面的教师蔡建国介绍,引发轮胎爆炸的原因,一方面是胎压过高引发,另一方面是由于轮胎长期的磨损,导致表面不均匀,出现一些薄弱点引起的。“在轮胎充气的过程中,有些司机往往将气充的很足,尤其是到了夏天,胎压升高,应适当放点气。”蔡建国说,轮胎的老化受损,也会让轮胎变薄,承受能力减弱。

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