The shape of the graphite is sphere, so cast iron is called ductile cast iron, or nodular iron. The graphite cast irons increase the machinery property, especially plasticity and tenacity, so increase the intensity.
The history of ductile cast iron
In 1981, the specialists in
The property of ductile cast iron
Most of the casting fields have used ductile cast iron, because these fields demand cast iron which has high intensity, plasticity, tenacity and good abrasion resistant, heat resistant and corrosion resistant.
The related knowledge of the ductile cast iron
1. In automobiles aspect
Pearlites and ferrite ductile cast iron have used in the base plates parts in the automobiles, this indicates that the ductile cast iron products have reached to a high level and the gap between
2. The factors of metallurgy
Adding proper rare earth complex spheroiditic agent, compel cooling, concrete in order and adding small Sb and Bi can prevent the middle part of the ductile cast iron loose and distortion.
3. Austenite-bainite ductile cast iron
In 20th century 70 times, austenite-bainite ductile cast iron was produced successfully in
4. Mechanical property and other property of ductile cast iron
We have studied the mechanical property and other property of tombarthit magnesium ductile cast iron, such as specific gravity, heat conduction and electromagnetism, besides; we have studied the effect of graphite to the property of ductile cast iron.
5. Ductile cast iron tubes
Nowadays, the development of ductile cast iron is just second to the gray cast iron, because its comprehensive property is close to the steel, so it is used widely.