Ferro Tungsten Is Highly Resistant

Ferro Tungsten, an alloy composed of iron and tungsten. It is suitable for smelting ferrotungsten containing 70% tungsten with a lower melting point. Silicon and carbon are used as reducing agents; the operation is divided into three stages: reduction (also known as slag depletion), refining and iron extraction. In the reduction stage, there is slag containing more than 10% WO3 left over from the previous furnace, and then successively add batches of tungsten concentrate charge, and then add ferrosilicon containing 75% silicon and a small amount of pitch coke (or petroleum) Coke) is reduced to smelting, and the slag is discharged when the WO3 content of the slag drops below 0.3%.

Then it moves to the refining stage, during which tungsten concentrate and pitch coke mixture are added in batches, operated at a higher voltage, and impurities such as silicon and manganese are removed at a higher temperature. After taking samples for inspection and confirming that the ingredients are qualified, iron extraction begins.

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