Swing groove for light and thin continuous casting tundish and manufacturing method thereof

Abstract

The invention discloses a swinging groove for a light thin continuous casting tundish and a manufacturing method of the swinging groove for the light thin continuous casting tundish. The method includes the following steps that an end face baffle used for sealing one end of a semi-round cylindrical shell is arranged at the end of the semi-round cylindrical shell; a first layer of fireproof materials is tied at the bottom of the semi-round cylindrical shell, and a second layer of fireproof materials is tied after a fracture-proof metal mesh is laid on the fireproof materials adjacent to the end face baffle; coating of the fire-resistant materials is started on the edge portion of the semi-round cylindrical shell and carried out until a fireproof material inner layer with the gradually-larger thickness from the edge portion to the center portion is formed; finally, drying is carried out and a finished product is obtained. The swinging groove for the light thin continuous casting tundish is manufactured and obtained through the manufacturing method. The swinging groove for the light thin continuous casting tundish is simple in structure, low in application material consumption, and capable of effectively saving cost of materials, reducing the weight of the swinging groove, well prolonging the service life and obtaining the good technology effect.

Description

technical field [0001] The invention belongs to the technical field of steelmaking, and more specifically relates to a swinging trough for a continuous casting tundish in a pouring process of a continuous casting sizing nozzle and a manufacturing method thereof. Background technique [0002] Billet continuous casting generally adopts the sizing nozzle pouring process. Since the sizing nozzle cannot effectively control the molten steel injection flow, a swinging device is usually used to control the amount of molten steel in the mold. At the start of continuous casting, it is generally adopted to reduce the inflow of molten steel in the crystallizer by swinging the groove multiple times to ensure that the billet in the crystallizer is fully solidified and firmly combined with the dummy head. If accidents such as steel breakout and steel overflow occur during the continuous casting process, the swing tank can be placed below the steel flow, so that the molten steel can flow in...

AI Technical Summary

Problems solved by technology

Since the continuous casting trough is an easy-to-wear spare part, many companies have adopted different methods to reduce material consumption, such as using waste refractory materials from steel mills to make the trough. Although this method can reduce the production cost of the trough, the swing trough However, the amount of consumption has not been effectively reduced, that is, the service life of each swing trough is still very low; another example is the use of combined swing troughs, that is, the purpose of improving the service life of the swing troughs is achieved by replacing some damaged devices, but the actual production The pendulum tank in the tank is impacted by molten steel intermittently, the temperature changes greatly, the outer shell of the pendulum tank is greatly deformed, and there are gaps in the joints of the pendulum tank replaced in sections, so there is a great potential safety hazard

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