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2019-11-13
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Micro-carbon chromium iron powder is mainly used to produce stainless steel, acid-resistant steel and heat-resistant steel. Exercise methods include electro-silicone method and heat-damp method. Refractory chromite

Exercise method: electro-silicon heating method for micro-carbon chromium iron powder electro-silicon heating method for micro-carbon chromium iron powder It is made by recovering Cr2O3 from chrome in silicon.



The equipment for electro-silicon heating to exercise micro-carbon chromium iron powder is an electric arc furnace. It is divided into two types, open and covered, with power below 500kV.A and equipment with on-load conditioning voltage to meet the needs of different operation periods. The furnace lining is made of magnesium bricks and graphite electrodes are used. The main raw materials for electro-silicone method to exercise micro-carbon chromium iron powder are chrome ore, silicon chromium alloy and lime. There are also fluorite and iron scales. The chrome ore should be a dull and clean lump ore or concentrate, with a block size of less than 50mm; containing Cr2O3> 40%, Cr2O3 / ∑FeO> 2.0, and phosphorus content should not be greater than 0.03%. Select silicon-chromium alloys with different carbon contents according to the trademark of the exercised micro-carbon chromium iron powder.


The heat-draining method to exercise micro-carbon chromium iron powder The heat-draining method to exercise micro-carbon chromium iron powder technology is to heat-drain the pre-melted chrome ore-lime melt and the hot metal ladle outside the silicon-chromium alloy furnace, and then make micro-carbon Iron chrome powder. The heat exchange technology can be divided into one-step heat exchange method, two-step heat exchange method, and three-step heat exchange method according to the number of stages of recovery of Cr2O3 in the slag.


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