Introduction the use of cast iron more than 18 by adding nodulizer, 简介使用18号以上的铸造铁水经添加球化剂后，球墨铸铁管经过离心球墨铸铁机高速离心铸造成的管道。
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 离心球墨铸铁管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