The sliding nozzle is composed of upper and lower sliding plates and 4 refractory bricks for the upper and lower nozzles. The pouring of each ladle of molten steel must pass through the upper and lower sliding plates and the upper and lower nozzles, so they are very strict. Firstly, they must have sufficient strength at high temperatures to …
The composition and use skills of sliding nozzle Read More »
The methods of slag blocking are as follows: Blocking slag once by slag blocking cap method; Secondary slag removal is blocked by slag ball method, floating plug method, pneumatic slag monoblock stopper method, pneumatic slag blowing method, etc. (1) Slag cap. A conical slag cap made of steel plate is blocked outside the tapping hole to block …
Argon blowing is usually to build one or several ladle purging plug at the bottom of the pouring ladle or brick ladle. After tapping, blow argon gas through the breathable bricks to cause agitation of the molten steel in the ladle. Argon blowing can promote the floating of emulsified slag droplets and inclusions in steel, and can …
Selection and technological requirements of ladle purging plug Read More »
As the key functional refractory material for billet continuous casting, the sizing nozzle plays a role in controlling the flow of molten steel and determines the casting speed of the billet in continuous casting. It is a necessary condition to ensure the normal operation of continuous casting, which is called continuous casting function. refractory material. …
Classification and production process of tundish sizing nozzles Read More »
1. Strictly control the slag from the big bag The main sources of slag components in the casting area of the tundish are ladle refining slag, tundish covering agent and molten steel inclusions floating up into the slag layer. Among them, the low silicon aluminum killed steel refining slag, which is more severely corroded by the stopper rod, …
Improvement measures for corrosion of tundish stopper Read More »
Ladle has the function of receiving molten steel and refining outside the furnace. The service life of ladle directly affects the ladle turnover rate and refractory consumption, thus affecting the smelting cost of steel mills. Taking 75t ladle as an example, this paper analyzes the factors affecting the service life of ladle, and takes corresponding …
4 effective measures to improve the life of ladle Read More »
According to production process, fire clay brick is divided into machine made brick and handmade brick. According to structures, fire clay brick is divided into solid brick and hollow brick, and hollow brick can be divided into load-bearing brick and nonbearing brick. Fire clay brick is made at different shapes according to different using requirements. Advantages of fire clay …
