DSD Composite Materials Co., Ltd.

Is ductile iron manhole cover really as good as the legend

When choosing a manhole cover, many people will discuss which manhole cover will be better. Compared with gray iron manhole covers, the favorable rate of ductile iron manhole covers is significantly more. Some people say that after the development of cast iron manhole covers to ductile iron this process, it is already very good, so there is a certain basis, but it can not be said to be perfect. How about ductile iron manhole cover? See from which aspects to look.

There is no perfect product in the world, just like gold without sufficient, ductile iron manhole cover to remove the advantages do not say, who has certain shortcomings.

Ductile iron manhole cover general cost will be relatively high, which is determined by its material, metal material is of course more expensive, let alone cast iron material; Secondly, its weight is relatively heavy, and the installation and maintenance have certain troubles; The process of cast iron manhole cover determines that its price will be more expensive, because the casting process is used, which is much more complex than the high temperature molding process of composite materials. Moreover, the color of the ductile iron manhole cover is single, not as bright as the composite manhole cover. Also because of the process, the casting process is not easy to color, unless it is fired on the surface of the manhole cover, and it is always monotonous black.

After analyzing the problem of ductile iron manhole cover, let's talk about how to choose. First of all, it is necessary to look at the needs of the place, and choose the right manhole cover because of the local construction. The ductile iron manhole cover can not only be used in outdoor ditches such as stadiums and municipal districts, but also can be used in heavy parking yards and other occasions. Customers in the selection should be based on the performance requirements of ductile iron manhole cover, consumption conditions and manufacturing processes to consider. Also need to take into account the size and specifications, if the wear resistance of the ductile ink manhole cover is required, it is necessary to choose corrosion resistance, anti-aging, anti-oxidation castings.