Microcarbon Ferrochrome

Name: China Microcarbon Ferrochrome Manufacturers Suppliers - Low Price Microcarbon Ferrochrome
Brand: Sancheng
SKU: 233638598

< chromite ore, and lime as raw materials, and is refined and desilicated using a 1500-6000 kVA electric furnace.>

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Product Introduction

Anyang Sancheng Metallurgical Refractory Co., Ltd,

located in the ancient capital of the Seven Dynasties in Anyang city, Henan Province, China, known as the "First Town of China's Ferroalloys and Metallurgical Materials". Our main products include: silicon carbide, metal silicon, silico manganese, silicon slag, silicon ball, ferro silicon carbon, silicon aluminum calcium compound deoxidizer, silicon calcium alloy, silicon aluminum barium calcium, manganese iron, carbon additive, graphite electrode, micro silicon powder, inoculant, silicon barium calcium, etc.

high quality

Advanced Equipment

Professional Team

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Low and low-carbon ferrochrome is also produced on a large scale using the hot blending method

During production, two electric furnaces are used, one for smelting silicon chromium alloy and the other for melting slag composed of chromium ore and lime

The refining reaction is carried out in two stages in two containers

After the slag of the slag furnace is injected into the first ladle, the silicon chromium alloy that has been preliminarily desilication in the other ladle is mixed in. Due to the large excess of slag oxidant, desilication is sufficient, and micro carbon chromium iron with silicon content less than 0.8% and carbon content as low as 0.02% can be obtained

The slag (containing about 15% Cr2O3) after reaction in the first container is moved to the second

Heat the silicon chromium alloy (containing 45% silicon) refined by the silicon chromium electric furnace into the slag, and after the reaction, obtain a preliminary desilication silicon chromium alloy (containing about 25% silicon). Pour it into the first ladle for further desilication. If the slag contains less than 2-3% Cr2O3, it can be discarded.

Medium, low, and micro carbon ferrochrome generally uses silicon chromium alloy, chromite, and lime as raw materials

Refining and desilication using 1500-6000 kVA electric furnace, using high alkalinity slag operation (CaO/SiO2 ratio of 1.6-1.8)

Oxygen blowing method for refining medium
and low-carbon ferrochrome

Using liquid carbon chromium iron as raw material

During smelting, a small amount of lime and fluorite are added to the melt to form slag. Before tapping, silicon chromium alloy or silicon iron are added to recover chromium from the slag. The smelting of micro carbon ferrochrome is only possible under a certain vacuum degree

Vacuum solid decarburization refining method

Using finely ground high carbon ferrochrome as raw material, a portion of the finely ground high carbon ferrochrome is oxidized and roasted as an oxidant,

Vacuum solid decarburization refining method

Press into clumps, dry at low temperature, and place them in a car bottom vacuum furnace at a vacuum degree of 0.5-10 millimeters of mercury

Vacuum solid decarburization refining method

Heating and reducing at temperatures of 1300-1400 ℃ for 35-50 hours can yield micro carbon ferrochrome with carbon content below 0.03% or even below 0.01%.