It analyzed interrelations among the carbon, silicon and sulphur in high-carbon ferrochrome, slag basicity and furnace temperature, coke's sulphur influenced on desulphurization are also discussed, many effective measures are taked for lessening sulphur content in high-carbon ferrochrome.

It analyses the changeable TiO_2 content in chrome ore and the structural form,the balance of Ti,the reaction mechanism of Ti and its existence form in alloys,the affect factor of Ti content in alloys,and benefits and control methods during the process of smelting low titanium high carbon ferrochrome.

It introduces technological condition and result of smelting high carbon ferrochrome with Xinjiang's high melting point and low grade chromes.

Based on the principle and characteristics of medium frequency furnace, analysis on physical and chemical performance of liner material , better technological economic indexes and benefits of adaptation to 2 tons medium frequemcy furnace for resmelting high carbon ferrochrome are realizde by pilot production and industrialized production.

The chemical compositions of high carbide high chromium steel and chromium-bearing grey cast iron were optimized through orthogonally designed experiments which were carried out on a horizontal cantilevered centrifugal machine to compound the steel and cast iron by way of a centrifugal casting process.

Results show that RE and heat, treatment improves the morphology and the distribution of carbide and increases the impact toughness of high C-Cr cast steel.