Introduction the use of cast iron more than 球墨铸铁管18 by adding nodulizer, after centrifugal ductile cast iron machine high speed centrifugal casting pipe caused by .
Ductile cast iron pipe is mainly known as the centrifugal ductile cast iron pipe, it has the nature of property, steel iron, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly used for municipal, industrial and mining enterprises of water, gas, oil etc.. The water supply pipe is preferred, with very high price.
The characteristics of ductile cast iron pipe is a kind of cast iron pipe, which is an alloy of iron, carbon and silicon. Graphite in ductile cast iron is exist in spherical form, general graphite size is 6-7, the quality requirements of cast iron pipe nodulizing grade control 1-3 ( spheroidization rate " 80% ), and mechanical properties of the material itself has been improved, with the nature of performance, iron and steel. Ductile cast iron pipe after annealing, the microstructure is ferrite and pearlite, good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly ductile cast iron pipe product warehouse