SU405948A1 - METHOD OF PROCESSING CHUGUN - Google Patents

Description

one

There are known methods for the processing of cast iron in two meta-tal aggregates with the production of a carbonaceous semi-product using the treatment of meta.llas with slag-forming mixtures or slag raloplav-i and in; e: mercury gases.

The purpose of the invention is to obtain a metal with a low content of sulfur and phosphorus.

This goal is achieved by the fact that a carbonaceous product obtained in the first unit and containing not less than 2.0% carbon and 0.01-0.05% silicon and manganese is processed using a co-forming compression or slag melts outside the steelmaking industry. a unit with an inert gas with an inert gas, and the slag obtained therein is used in the second unit when blowing out the intermediate to steel.

It is established that the application of the proposed method of processing cast iron degree

2

the desulfurization of the metal is 70-75%, and the sulfur content is 0.002-0.008%.

Subject invention

The method of processing iron in two metallurgical aggregates to produce a carbonaceous ori intermediate using metal processing with slag-forming mixtures of slag or slag melts and inert gases, which is different, in order to produce 1 metal with low content of sulfur and phosphorus, carbon semi-finished product obtained in the nerve aggregate and containing not less than 2.0% of carbon and 0.01-0.05% of silicon and manganese are treated with slag-forming metals or slag melts with blowing with inert gases outside the steelmaking unit And the resulting slag is used therein in the second unit while purging the precursor steel.