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圆形和方形铸铁井盖的预留孔设计原则

来源:http://www.kpp647.com添加时间:2018-01-09 18:14:07

  从寿命上来讲,铸铁沟盖板和铸铁井盖从用的材料及强度来讲,没有什么绝对的区别,只不过那铸铁井盖一般都是全封闭的,上面只留一个雨水的小孔,还有一些井盖是连小孔都没有的,那么铸铁沟盖板的话,一般会是中间留很多的空气,以方便雨水浸入,这是他更大的区别。

  From the life of speaking, iron and cast iron manhole covers from the ditch cover material and strength is not what the absolute difference, but the general cast iron manhole cover is closed, leaving only a small hole above the water, and some even have no holes covers, then cast iron ditch cover. The general will is leaving a lot of air, to facilitate rainwater immersed, this is his biggest difference.

  球墨铸铁沟盖板的强度和铸钢的强度是可比的。球墨铸铁具有更高的屈服强度,其屈服强度更低为40k,而铸钢的屈服强度只有36k。在大部分市政应用领域,如:水、盐水、蒸汽等,球墨铸铁的耐腐蚀性和抗氧化性都超过铸钢。

  The strength of the ductile iron groove cover is comparable to the strength of the cast steel. The nodular cast iron has a higher yield strength, the yield strength is lowest 40K, and the yield strength of the cast steel is only 36K. In most of the municipal applications, such as water, brine, steam, and so on, the corrosion resistance and oxidation resistance of spheroidal graphite cast iron exceed the cast steel.

  再来从形状上看一下 球墨铸铁井盖一般分为圆形和方形,在市区的路政方面,一般采用圆形,因为 圆形的沟盖板不易倾斜,能够较好的保护好行人和车辆的安全。

山东球墨铸铁井盖

  Again, from the shape, the nodular cast iron covers are generally divided into circular and square ones. Generally, they are circular in the urban road area, because the circular trenches are not easy to tilt, which can better protect the safety of pedestrians and vehicles.

  使用圆形,主要是考虑到圆形的沟盖板通过其圆心的每条直径长度都是一样的,这样如果沟盖板被经过的车辆轧起时,因为不论如何轧起,其直径都会比下面的井口略宽,井盖不会掉到井口里去。

  Use the circular, mainly taking into account the circular trench cover through its center of each diameter length is the same, so if the vehicle through the trench cover is rolled up, because no matter how rolling, the diameter will be slightly wider than the wellhead, will not fall to the wellhead to manhole cover.

  而铸铁锅盖板的话一般很少有圆形的,一般都是长方形为多,而且在使用的时候一般很多呢都是一个,一个排水沟上,盖一层长长的鼻子,所以这样就统称为铸铁排水管的吧,我的话起到的就是方便雨水排出及,主导,杂物的作用,

  The iron pot cover plate words are rarely rounded, usually rectangular, and when in use a lot of it is a general, a drain, a layer of long nose, so this is referred to as cast iron drainage pipe it, what I play is convenient rainwater discharge and debris, leading role,

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  We are filled with enthusiasm and passion towards work and customers, we are willing to use the hard work and you create a better tomorrow!



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