Stainless steel electric furnace foaming agent and use method thereof

Abstract

The invention discloses a stainless steel electric furnace foaming agent and a use method thereof and belongs to the technical field of stainless steel electric furnace smelting. The technical problem solved by the invention is to provide the stainless steel electric furnace foaming agent good in foaming effect and large in density, and the use method of the stainless steel electric furnace foaming agent. The stainless steel electric furnace foaming agent comprises the following components of, by weight, 6 parts of carbon powder, 40-60 parts of calcium carbonate, 10-20 parts of magnesium carbonate, 5-10 parts of barium carbonate, 10-20 parts of aluminum oxide and 5-10 parts of manganese oxide. All the components are evenly mixed according to the ratio and are then put into a steel pipe. The stainless steel electric furnace foaming agent is simple to prepare, convenient to use and high in density, thereby sinking to the bottom of furnace slag, thus bubbles can push slag for continuous long-time foaming from the bottom of a slag layer, the foaming effect is excellent, stainless steel smelting production efficiency is improved greatly, and smelting production cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of stainless steel electric furnace smelting, and in particular relates to a stainless steel electric furnace foaming agent and a use method thereof. Background technique [0002] At present, foaming slag is a widely used technology in the process of smelting carbon steel in electric furnaces. The foamed slag produced by it can greatly improve the thermal efficiency of arc heating, and significantly reduce the radiant heat erosion of electric furnace lining by electric arc and the loss of electrodes. has an important role. However, in the stainless steel smelting process, it is very difficult to produce good foamy slag. The reason is that oxygen blowing in the stainless steel electric furnace smelting process mainly produces dichromium trioxide instead of iron oxide. The presence of dichromium trioxide will not only deteriorate the The risk of slag fluidity, and the reaction rate of chromium trioxide with c...

AI Technical Summary

Problems solved by technology

The preparation method of the foaming agent in this method is complicated, and the thermal decomposition temperature of limestone is low, and the foaming speed is too fast to continue foaming; after the foaming agent is added to the molten pool, it will stay on the surface of the steel slag, and the generated gas will escape from the surface of the steel slag, and the foaming effect will be improved. not good