KazakhRussianEnglish (United Kingdom)

Metallurgy

Technology for smelting of the ferro-aluminum-silicon and «Kazahstanskiy» alloy (RSE «NC CPMRM RK»)

fsaTechnology for smelting of the ferro-aluminum-silicon and the «Kazahstanskiy» alloy for deoxidation, modification and alloying of steel, based on the use of offgrade carbonaceous feed was developed.

Produced alloy of iron, silicon and aluminum with the additions of modifier elements of non-metallic inclusions (calcium, barium, etc.) and alloying elements (vanadium, titanium, etc.) due to their properties has a high degree of recovery by the melted steel, provides the reduction of non-metallic inclusions and visible hot cracking, improves the structure and quality of work steel.

Read more...

KIVCET-technology for processing of the various plumbiferous raw materials (VNIItsvetmet)

kivcetKTVCET-technology for processing of plumbiferous raw materials is based on a combination of roast smelting furnace-charge processes in a spray state with oxygen, the reduction of the oxide melt in the layer of carbon material and the standing of the depleted liquid-alloy in the furnace, continuously carried out at the single set of original design. The furnace-charge is fir burned off and melted in an oxygen atmosphere and the resulting oxide melt is subjected to carbon-thermal reduction with a high extraction of: lead and precious metals - to black lead, copper - to regulus, zinc - to fume or sullage, sulphur - to combination gas.

Read more...

Development of technology for the smelting of new complex aluminum-chromium-silicon alloy (AChS)(Zh. Abishev ChMI)

The proposed flow diagram is simple and allows considered poor chrome ore not only as an integrated metallurgical raw materials, but also use as a reducer of the high-in-ash low-phosphorus coals. The process of smelting AChS complex alloy is a single-stage and uncindery. Process for obtaining of the AChS is the full restoration of oxide ore and mineral part of coal. This method of melting contributes to the high use of components of the furnace-charge and the use of low-grade ore and coal enables us to obtain an alloy with low-cost, and to enhance the quality of the alloy by stabilizing the process and increase furnace productivity due to the high resistivity of used coal, providing a deep landing electrode in the melting furnace. Coal ash is composed mainly of silica and alumina, recovering together with oxides of the ore, is an additional source of silicon and aluminum in the alloy.

Read more...

Technology for processing of the gold-arsenic concentrates(Zh. Abishev ChMI)

Preliminary method of the resistant and extremely resistant gold-arsenic concentrates preparation is developed, it allows to obtain the product suitable for further processing both the conventional hydrochemical methods of the gold extracting and at the pyrometallurgical treatment as a fluxing agent in the content of carbon and silicate components in the production of copper or lead.

Read more...

Reserves of the blast-furnace smelting operation for producing high-quality rolled steel (Zh. Abishev ChMI)

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.

Read more...

More Articles...