Abstract
The temperature of aluminotermic processes changes largely depending on appointment, structure andproperty of received products. Optimum conditions steal up for each concrete process. One of importantpractical questions is influence of temperature and external pressure upon extraction of restored elementsin an ingot. In work concentration and high-speed limits of burning of system WO3-Al are defined. Limitsof burning of system (4.3 – 19.1 g/sm3) are established at dilute from 10 to 300% by a ballast. The factors influencing for speed of burning mixture from tungsten concentrate are investigated. Influence of superfluous pressure on fusion indicators is investigated at reception ferrotungsten from various rawmaterials. Modes of preparation of initial raw materials to process of fusion are defined and parametres ofcarrying out of process of reception ferrotungsten under pressure are established. It is shown thatsuperfluous pressure does not shift balance of reaction of restoration of tungsten only suppresses disorderof a reacting mix and prevents ablation of a reacting mix that promotes increase in an exit of an alloy.