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Reserves of the blast-furnace smelting operation for producing high-quality rolled steel

 

Short description:

 

The technology don't requires the capital charges and implemented by entering the pellet of natural compounds of boron into the blast-furnace burden, which during the process of metallurgical treatment pass into the cast iron, steel and rolled product, significantly improving the quality of the latter.

 

As a result of production at the Sokolov-Sarbaiskoye Mining Production Association and processing at the Magnitogorsk Metallurgical Combine the 500 thousand tons of boron-containing pellets were obtained the following results:

  • increase the hot strength of pellets by 2 times,
  • reduce the consumption of fluxing stone by 12 %,
  • reduce the consumption of bentonite by 2 times,
  • reducing the loss of pellets from the ore degradation of 100 tons/twenty-four hours,
  • increasing productivity of blast furnaces by 4 %,
  • reducing the coke consumption by 5 %,
  • increase the production of cast iron of the highest category of sulfur (less than 0,02 %) from 65-70 to 85%,
  • reduce the resulfuration velocity in oxygen converter by 5 times,
  • savings of lime and dolomite - 4 %,
  • growth plasticity (d4) autosteel sheets 08Yu to 3,5-8,7 %,
  • growth stamped factor on 25,3-41,0 %,
  • growth production of rolled products for extreme difficult rolled-out (EDR) by 2 times (from 32 to 75 %).

 

Level of readiness:

 

For the first time in world practice, the proposed method tested in industrial conditions and the new technology have been implemented at the Sokolov-Sarbaiskoye Mining and Industrial Association and the Magnitogorsk Metallurgical Combine.

 

Availability of patents:

 

Technology protected by copyright certificates of USSR.

 

Partners:

 

Sokolov-Sarbaiskoye Mining and Industrial Association;

Magnitogorsk Metallurgical Combine.

 

Contacts:

 

SSE «Zh. Abishev ChMI» RSE «NC CPMRM RK»

Karaganda, 63, Ermekov str.

Tel.: (7212) 43-31-64

Fax: (7212) 43-31-61

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