Why do iron foundry like nodular cast iron so much
You must have heard of ductile iron castings. What we usually mean by "replacing steel with iron" is actually ductile iron. The properties of nodular cast iron are quite close to that of steel, so the castings made from it are widely used in different fields. The following is an introduction to the outstanding performance advantages of ductile iron castings by the iron casting manufacturers, hoping to make everyone realize why the iron casting manufacturers like ductile iron so much.
1. Strong corrosion resistance
Ductile iron means that graphite element enters into the space of iron element. In this way, corrosive objects can not enter into the space of iron element. Naturally, there is no way to corrode iron element.
2. Cracks can be well avoided
The staff of the cast iron manufacturer can clearly see through the microscope that the crack caused by iron will not crack after it reaches the graphite ball. This is because the stability of graphite ball is quite high, so the possibility of fracture is very small.
3. Excellent impact resistance and ductility
After some special treatment, the graphite flakes inside the nodular cast iron will become quite fine carbon elements, and these very fine carbon elements can enter into the voids of iron elements, thus strengthening the physical properties of the nodular cast iron, which will have excellent impact resistance. Anyone who knows ductile iron should be very clear that graphite itself is not ductile, but iron is quite ductile. Combining graphite and iron will play a complementary role. Combined with their own advantages, ductile iron castings can achieve both impact resistance and ductility.
Through the introduction of the above contents, we can know the advantages of nodular cast iron. Because of these advantages, the cast iron manufacturers are very fond of it.