As one of the important technological innovations to promote the rapid development of the iron and steel industry, sliding gate nozzle has been rapidly popularized because of its obvious superiority over stopper gating control.

Sliding gate nozzle mechanism is a kind of molten steel flow control device installed at the bottom of ladle. Through its structure, the frames of the related refractory materials in the steel flow channel are connected. Its basic structure consists of three parts: the fixed part (base and bracket), the moving part (sliding plate) and the driving assembly. The base is connected to the ladle reference plate. The upper water nozzle and the upper sliding plate are fixed in the base without movement. The lower sliding plate and the lower water nozzle are fixed in the slide block and move back and forth along with the slide block, and the elastic pressure is transmitted to the joint of materials. The driving assembly of the driving source pushes and pulls the slider back and forth, so that the refractory (lower part) in the slider moves relatively to the refractory (upper part) in the base, completely or partially shielding the steel flow, and realizing the control of the molten steel flow.

Castable, also known as refractory castable, is a kind of granular and powdery material made of refractory material added with a certain amount of binder, which has high fluidity and is an unshaped refractory formed by pouring.

The seating brick for steel ladle nozzle produced by our company has the characteristics of stable structure, good thermal shock stability, scour resistance, corrosion resistance, long service life and so on. Al2O3alumina spinel castable and its integral casting technology greatly improve the service life of metallurgical ladle, save resources, save energy and protect the environment, and have remarkable economic benefits compared with traditional smelting brick ladle. It can meet the requirements of the steel ladles for implementing integral casting and continuous pouring in harsh ladle environment.

Our company has developed a series of high-efficiency stuffing agents. It is composed of high-quality imported chrome ore sand, refined quartz sea sand and high refractory materials. It has the advantages of good fluidity, high gravity, high speed, proper sintering degree, resistance to molten steel erosion and penetration, and its self-flow pouring rate of steel ladle reaching over 98%. It greatly reduces the labor intensity of workers, reduces oxygen blowing and stuffing, improves the quality of steel products, and ensures the smooth progress of continuous casting process.

Mg-C brick is made of electrofused magnesia (sintered magnesia) and flake graphite as raw materials, added with resin as binding agent, pressurized and heat treated.