Operation method for melting squatting furnace steel body by medium-frequency induction steel melting furnace

Abstract

The invention relates to a re-melting operation method for forming a steel body by squatting molten steel in a medium-frequency induction steel melting furnace, and belongs to the related technical field of metal casting metallurgy. The problem of re-melting of a steel body under the condition that the furnace body is not damaged after the molten steel in the intermediate frequency furnace is cooled and squat to form the steel body due to power or equipment failure when the molten steel is molten in the intermediate frequency furnace is solved. According to the operation method, the furnace body is inclined, the steel body is melted in a furnace poking mode, the furnace body does not need to be smashed and the furnace does not need to be rebuilt after molten steel is cooled and squat to form the steel body, furnace hitting and building labor cost is avoided, and furnace charge is saved. In the prior art, the steel body drawn out in the furnace is large in size, cannot enter the hearth again and can only be sold as waste steel, the operation method does not need to draw the furnace, the steel body of the molten squat furnace is directly used, the steel body of the squat furnace is directly utilized, and the production cost is effectively saved.

Description

technical field [0001] The invention relates to a re-melting operation method for forming a steel body by squatting molten steel in an intermediate-frequency induction melting steel furnace, which belongs to the related technical field of metal casting and metallurgy. Background technique [0002] The melting of steel material into molten steel is an important link in the production of cast steel castings. The intermediate frequency furnace is a common equipment for melting steel into molten steel. as attached figure 1 As shown, the heating coil of the ordinary intermediate frequency furnace is located at the lower outside of the furnace body. The temperature of the molten steel in the furnace is high in the zone ① near the side wall of the inner circumference of the furnace body. The temperature in the ③ area is higher, and the temperature in the ④ area located above the interior of the furnace body is lower. The intermediate frequency furnace melts molten steel normally...

AI Technical Summary

Problems solved by technology

These gases and enamel body, on the one hand, hinder the heat transfer of the molten steel in the middle and lower parts to the upper steel body, and the upper steel body cannot be melted at all. On the other hand, the precipitated gas expands to form air pressure, which may damage the furnace body and cause molten steel to leak and explode. security risk

Without technical measures, the normal melting method cannot re-melt and cool the steel body in the furnace. It can only break the furnace body to take out the steel body, and then rebuild the furnace, which is time-consuming, labor-intensive and material-intensive

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