Quality identification of high carbon ferro chrome powder

High carbon ferrochrome as a large purchase of products, it is very important to identify its good or bad. High carbon ferrochrome production needs ferroalloy raw materials are chromium ore, coke and silica, in order to adjust the slag type, need to add a certain amount of white ash or dolomite, high carbon ferrochrome manufacturers for raw materials are very high requirements, require high content of useful elements, good performance, good particle size, and greatly energy saving and consumption reduction.

Good quality of high carbon ferrochrome for chromium ore requirements: chemical composition, requirements Cr2O3≥38, Cr/Fe>2.2, P<0.08, C content is not greater than 0.2, moisture content is not more than 18-22%; The physical state requires that the ore shall not be mixed with miscellaneous stones, soil and other impurities. The particle size of a chrome ore in the furnace is 5-60mm, and the amount below 5mm shall not exceed 20% of the total.

High quality high carbon ferrochrome requirements for coke: chemical composition requirements, fixed carbon >83%, ash <16%, volatile content between 1.5-2.5%, total sulfur is not more than 0.6%, moisture is not more than 10%, containing P2O6 is not more than 0.04%; The physical state requires the addition of coke particle size of 20-40mm, metallurgical materials are not allowed to be too large or too broken, not mixed with soil, impurities, powder.