根据EN124标准对于承压的要求,源盛铸锻的井盖分为如下几种级别: |
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– 级别1:(A15级)测试载荷1.5吨
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材质 — 球墨铸铁和灰铁:
– 微观结构的两种类型:
– 球墨铸铁和传统的铁灰色的区别: The addition of magnesium at the molten stage transforms the flakes of graphite which are common with the grey iron casting process and transform them into spheroidal or nodular form. The nodular structure provides a higher tensile strength as well as a higher “strength to weight”ratio when compared with the properties inherent with grey iron manufacture.
– 球墨铸铁的好处: Ductile iron high strength to weight ratio allows for the production of light weight castings that offer what can amount to a 50% weight saving over traditional grey iron.
大多数情况使用标准尺寸即可。
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