Smelting device of steel for circle forging and forging method thereof

Abstract

The invention discloses a smelting device of steel for circle forging and a forging method thereof. The device comprises a smelting furnace, a conveying belt, a hot rolling mill, a shaping box and a cold rolling mill, the conveying belt is fixedly arranged at one side of the smelting furnace, the hot rolling mill is fixedly connected to the upper portion of the conveying belt, and the shaping box is fixedly arranged at the position, above the conveying belt, of one side of the hot rolling mill; and the cold rolling mill is arranged at the side, away from the hot rolling mill, of the shaping box. Raw steel melting, molten iron pouring, conveying, hot rolling, quenching, cooling and cold rolling forming are arranged on a continuous production line, so that the smelting and forging process of circular steel is shortened as much as possible, and the smelting and forging process of the circular steel is relatively simplified; and in the process from hot rolling to cold rolling, the shaping box is arranged, in the shaping box, high-temperature round steel is subjected to quenching, forging and water cooling, the material and performance of a round steel rough blank are adjusted, the quality of the round steel is guaranteed and improved, and the temperature of the round steel rough blank is reduced to be close to the normal temperature so that cold rolling operation can be carried out.

Description

technical field [0001] The invention relates to a steel smelting device for forging round steel and a forging method thereof, in particular to a steel smelting device for round forging steel and a forging method thereof, and belongs to the technical field of round steel smelting and forging. Background technique [0002] As one of the most important materials in human society, steel has a wide range of applications. By adjusting the proportion of carbon content in steel, the strength and stiffness of steel can be adjusted accordingly to meet the needs of different uses of steel. The development of steel smelting technology is a material science Milestones in the process, and steel is generally divided into round steel, square steel and I-shaped steel according to needs, and the selection of suitable profiles according to the use environment can improve the use effect. [0003] Round steel is a solid strip of steel with a circular cross section. It is also the most widely use...

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Problems solved by technology

[0003] Round steel is a solid strip of steel with a circular cross section. It is also the most widely used steel profile at present. Its specifications are expressed in millimeters of diameter. The forging process of round steel is divided into hot rolling, forging and cold casting. There are three types of drawing. In the prior art, the raw steel is generally heated and melted, and then stretched to make the raw steel close to the forging diameter, and then combined with the cold rolling process to obtain the round steel with the required diameter. However, the processing procedures of the existing devices are complicated. Because the factors of thermal expansion and contraction will greatly affect the diameter of round steel, the cold rolling process needs to be carried out after the raw steel is cooled to close to room temperature, and the conversion between the cold rolling process and the hot rolling process takes a lot of time and energy, or A large amount of clear water is required to participate, and the process is relatively complicated. Therefore, those skilled in the art propose a smelting device for forging round steel and its forging method to solve the problem of cooling and heat conversion encountered when the above-mentioned existing device processes forging round steel.

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