Energy and resources saving as one of the main components of modern technologies, particularly in metallurgy and machine building. To make the plastic properties of metal before rolling it is heated to a temperature of 1200-1300oS. An important problem of high-temperature heating is a significant loss of metal in the groove "in the formation of scale resulting from the oxidation of methane. Thus, at a temperature of more 700oS is the formation of a continuous scale heterogeneous.
The need to expose the metal-propagation hightemperature heat before further processing leads to significant losses due to its groove. In some cases, with multiple heating groove may be approximately 8%. Initially, the high cost of steel and the costs associated with removing the scale, is an incentive to find and develop new technologies and best modes of heating. Improving the competitiveness of enterprises through advanced technological processes, based largely on low-and resource conservation - one of the stages of strategic development of the mining-metallurgical complex of Ukraine.
Reducing waste steel (velocity okalinoobrazovaniya) at high temperature heating, the development of the foundations of the technological process and equipment for its realization.
The technology of heating steel with electro effects include proposals to bring a negative way of the electric potential to the array of heated metal. Resource-saving technology is offered for use in teaching tolkatelnyh furnaces JSC «DMZ».
One way to partially reduce waste is electrophysical effect (EPI) for the heat-mass exchange processes at high temperature oxidation of steel. Scope of impact is that, if compensation of excess positive charge due to the electron of iron oxide to oxygen and the formation of vacancies, an external electric charge, the electrochemical potential gradient in the layer of scale tends to zero, reactionary resistance increases, thereby decreasing the rate and the diffusion of oxygen to the metal through the layer of scale, ie decreases okalinoobrazovanie [1]. Experimental studies [2,3] in the laboratory and industrial conditions have shown the possibility of reducing metal losses with the slag is 20-30%. It also reduces the consumption of energy for heating, because decreasing effect of heat-insulating layer scaling. The most suitable methods for EPI tolkatelnye furnace for heating steel billets for rolling. In such furnaces load of metal, consisting of individual billets, moved by pushing. As we move from zone to zone boot extradition blanks pass through several temperature zones, and heated to the required condition. In the furnace can supply the electrical capacity in the cold zone, as well as the tight mechanical and electrical contact through the actions of the pusher, hence the proliferation of electrophysical effects on the whole of SADC. The paper proposes a way to manage EPI. A timing of the filing of steel billets in the furnace, thus - in the EPI data. Time of contact with the pushrod harvesting, ie, and an electrode for a supply of electric capacity, with an average of 5 minutes interval, when the follower does not communicate with harvesting - 0.5 minutes, which is 94% and 6% respectively. On the way to the application is submitted for a patent, so the details of the method are not included here. The main provisions of EPI management are:
- location of the contact electrode inside the heads of the pusher, which is convenient in the area of the loading mechanisms, as well as compliance with safety requirements;
-electromechanical system location contact electrode;
- synchronization of the system:
a) mechanisms (disable) the electric potential
b) governance arrangement electrode;
c) pusher.
Thus, in the analysis made possible the use of electrophysical effects in the teaching of heating furnaces with a pusher in the high temperature heating of steel billets, as well as the concept of governance EPI.