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球墨铸铁井盖的承重标准

Release time：

2020-08-28 14:40

source：

  球墨铸铁井盖厂家的出现慢慢代替了传统放入灰铸铁井盖，使得井盖的载重又上了一个台阶，特别是在一些对于载重有着很高要求的场合，球墨铸铁井盖也能够满足其需求，这是灰铸铁井盖做不到的。

  球墨铸铁井盖的材质使用的是球墨铸铁QT500-7材质，具有较强的抗拉、抗压、抗腐蚀等性能，寿命可达50年以上；有良好的物理韧性，是灰口铸铁井盖及其它材质井盖2倍的强度，又有钢材的韧性，井盖直接落座在沥青路面上，与路面紧密整合为-体，能消除路面井盖下沉等常见问题的新型井盖。井盖与井体的连接方式改为承插式，来自上部的压力被分散到道路的结构层，使井体所承受的负荷减少80%以上，承载等级≥400KN。

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