Ductile Iron Is Normal

- Mar 03, 2017 -

The purpose of ductile iron is to obtain the pearlite matrix, and fine grain, uniform organization, in order to improve the mechanical properties of castings. Sometimes normalizing is also the surface of ductile iron quenching in the organization to prepare, normalized high temperature normalizing and low temperature normalizing. High temperature normalizing temperature is generally not more than 950 ~ 980 ℃, low temperature normalizing the general heating to the common temperature range 820 ~ 860 ℃. Normalized after the general need to be four people to deal with the normal fire generated when the stress.

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