Die-casting argon-blowing protection device

Abstract

The invention discloses a die-casting argon-blowing protection device, which comprises an argon-bowing protection part, an argon-sealing brick and a windshield, wherein the argon-sealing brick is arranged under the argon-blowing protection part, a gap is formed between the argon-blowing protection part and the argon-sealing brick, the upper part of the argon-blowing protection part is clamped with a steel ladle, an inner hole is formed in the argon-blowing protection part, the hollow cavity of the steel ladle and the inner cavity of the argon sealing brick are communicated through the inner hole, the lower part of the argon-blowing protection part is provided with a protection ring, a plurality of wind outlets are formed in the lower end surface of the protection ring, the wind outlets are arranged around the inner hole, and are communicated with an argon gas transmission device, the ring-shaped windshield is covered on the argon-blowing protection part and the argon-sealing brick and encloses the gap, and the windshield is made of a ceramic fiber fabric. By adopting the structure, the die-casting argon-blowing protection device disclosed by the invention has the following advantages that the nitrogen retention rate in steel is obviously reduced; and as the gap between the argon-blowing protection part and the argon-sealing brick is in a sealed state, the argon gas leakage can be reduced, and further, the argon sealing with argon gas atmosphere with higher argon gas concentration and lower nitrogen-oxygen partial pressure can be formed.

Description

technical field [0001] The invention relates to a protective device, in particular to a molded argon blowing protective device. Background technique [0002] With the continuous improvement and improvement of the steelmaking process. With the increase of steelmaking varieties and the improvement of quality, especially when producing high-standard special steel and top-quality steel, higher requirements are put forward for the argon seal protection device, especially the argon seal effect. [0003] The traditional argon sealing device has a hole for blowing argon gas on the wall of the argon sealing brick, but because the through hole is set on the side, the flow of argon gas is unstable, resulting in poor quality of molded products. The traditional argon protection part is an iron ring set on the outside of the argon sealing brick, but because the forming process of the iron ring is difficult, and the airflow rebound of the iron ring is not stable, it is also not condu...

AI Technical Summary

Problems solved by technology

[0003]The traditional argon sealing device has a hole for blowing in argon gas on the wall of the argon sealing brick, but because the through hole is set on the side, the flow of argon gas cannot Stable, resulting in poor quality of molded products

The traditional argon protection part is an iron ring set on the outside of the argon sealing brick, but because the forming process of the iron ring is difficult, and the airflow rebound of the iron ring is also unstable, it is not conducive to the molding of molded products

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