Refractory material for sliding gate

Refractory pouring steel used, 60 years ago using socket plug, 60 time development of the slide gate, from ladle to tundish and from the tundish to note the steel crystallizer for continuous casting, is a great change of refractory material. As the control flow of liquid steel puts forward the earliest sliding gate scheme in 1885 1964, American patent, Germany in 1968 and Japan respectively started using sliding gate, promote the use of start of 70 years in China

Sliding gate system (including upper and lower nozzle, upper and lower sliding) as ladle and tundish molten steel flow control system, with good controllability, can improve the productivity and rapid development.

Sliding nozzle system is superior to the traditional plug nozzle control system, it promotes the development of continuous casting technology, process and refining ladle at the same time, along with the steel output rise and steel quality, at the same time development of continuous casting technology of multi furnace must be sliding nozzle system to increase the service life, reduce operating costs.

Therefore, sliding structure and sliding gate refractories are improving. Due to the development of continuous casting ratio increases and the furnace refining technology to promote the continuous promotion of sliding gate technology. At present, the slab and large slab continuous casting using sliding gate, billet continuous casting are also part of the sliding gate. Traditional outlet, plug technology used in cast stainless steel in tundish is extremely special occasions.

Because the slide (Sliding Plate) direct control of molten steel flow, it is considered to be the most important sliding gate part in the system, in order to obtain a longer service life and stable operation, slide brick as refractory sliding gate system and mechanical components are required to have excellent performance.