By analysing the flow sheet of producing low/simplex carbon ferrochrome with silicothermic method,we find out the main factors and mechanism which affect production index.

The method to determine the content of Si,Mn and P in low-carbon ferrochromium with ICP-AES method is introduced,the ideal experiment result got through selecting analysis spectral line and the best acidity,the accuracy and precision determined.

Based on the feature of carbon and oxygen reaction in the process of refining low carbon ferrochrome,established the relationship of light-intensity information in furnace mouth and carbon content,get the averages of real-time light-intensity data through PLC,apply a relationship equation to estimate the carbon content in low carbon ferrochrome.

Analyzed affect facter of Cr_2O_3 content in the slag when smelting extra-low carbon FeCr in EAF, Introduced th measure to increase chromium recovery.

It briefly introduces the process of producing medium and low carbon ferrochromium with hot charging ferrochromium in electro-silicothermic method as well as the economic benefit obtained.

Based on sliding and drum wear test and microstucture examination,the influence of quenching temperature and holding time on wear resistance of low carbon and high chromium cast iron was inuvestigated.