Method of manufacture of a forming raw coulee bainitic

摘要

Method of manufacture of castings of spheroidal graphite cast iron bainitic cast, comprising the following steps: - (i) to produce a liquid metal alloy of the chemical composition chosen, - (ii) to carry out a spheroidizing, - (iii) making the molds, - (iv) cast metal alloy liquid in the molds, - (v) to cool the moulds cast placed on a mobile equipment in a cooling device to a controlled speed, characterized in that the chemical composition used is as follows: (see appended drawing in bopi) and in that the cooling step of the parts in the molds has a selected minimum period of 5 h