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Ferrochrome silicon – Aktyubinskij zavod ferrosplavov, AO |
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Ferrochrome silicon

Ferrochrome silicon

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Kazakhstan, Aktobe
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Technical characteristics
  • Country of manufactureKazakhstan
Commodity ferrosilikokhry apply generally to a raskisleniye (silicon) and an alloying (chrome, silicon) became. Along with commodity plants receive also reefficient ferrosilikokhry which is intended for production a little - and bezuglerodisty ferrochrome (GOST 4757 - 67) by a silikotermichesky method.

Fusion release at 1900 C in futerovanny a magnesian brick a ladle. The quantity of the ferrosilikokhrom which is filled in in the same ladle is counted, proceeding from 100% useful use of silicon. The thermal balance of process is given below.

Recently a row new a varia of t of silikotermichesky process of production sredneugl was offered (rodisty ferrochrome. In the USA it is offered to receive a spl mixture in a ladle low-percentage ferrosilikokhry (10 - 18% of Si; 52 - 65% of Sg) with rudo-limy fusion.

For example, in low-carbonaceous ferrochrome it is lame - the leading element, iron - the main, silicon - undesirable impurity, and carbon, phosphorus and sulfur - harmful impurity. Complex ferroalloys contain several leading elements, for example, in a ferrosilikokhroma - silicon and chrome. Expediency of an alloying became also alloys ferroalloys, but is explained not technically pure metals by the fact that in this case reduction of waste of the leading element is reached, its introduction to steel is facilitated, and the cost of the leading element in ferroalloys and ligatures is usually much lower, than in technically pure metals.
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