Factory Direct Graphite Mold Graphite Crystallizer for Copper Brass Continuous Casting

To prevent molten steel from sticking to the inner wall of the mold during condensation, reduce friction resistance during billet drawing, improve the surface quality of the billet, and extend the service life of the mold, lubrication of the inner wall of the mold is also necessary in production. Lubrication is the use of liquid lubricants or protective slag with a boiling point higher than the temperature of the inner wall of the mold (about 200 ℃). During the vibration process of the mold, they are continuously brought into the inner wall below the steel liquid level and form an oil gas film or slag film between the steel or billet shell and the inner wall of the mold to lubricate the inner wall.

There are two types of crystallizers according to the linear division of the inner wall of the section in the direction of casting: curved and straight; According to its overall structure, there are both sleeve and combination types for both curved and straight shapes.

The cooling water jacket composed of inner wall copper pipes, inner and outer water jackets, and foot rollers are its main components. The outer surface of straight or curved copper pipes consists of cooling water jackets, flanges, and sealing elements, forming a water supply and oil supply system. In order to ensure a regular appearance of the billet, 2-3 sets of foot rollers are installed at the bottom of the mold to improve the casting speed and prevent the billet from falling off square.