Nodular cast iron well cover in the long-term use will inevitably be affected, there are also some cases of skin damage, but there are problems, we must solve the problem, then how to do with the ductile iron manhole cover skin damage? The following small make-up for you to do a detailed description.
But the ordinary equipment for repairing defects of cast iron can be repaired by welding, which will not affect its application effect.
Cast iron manhole cover is used for water supply, so if it breaks, it is not easy to do。 It must be well maintained and repaired。
Nodular cast iron well cover is used for wellhead protection. And its application environment is also very bad, it must have high corrosion resistance, strong compression performance.
Meanwhile, cast iron manhole covers must have very high anti-aging performance。
The problem of common cast iron manhole cover is cracking, which is due to high temperature during heat treatment in casting.
Or in the casting, there is no appropriate addition of some effective components to avoid the cracking due to proper brittleness.
Some small markets also sell second-hand cast iron manhole covers, but second-hand cast iron manhole covers are very rough in technology, very likely to be cast iron manhole cover skin damage, through simple processing into new, so be careful when buying.
The above is about the relevant introduction of ductile iron manhole cover, want to know more, welcome to consult Shandong ductile iron manhole cover http://www.kpp647.com Official website.