Continuous casting machine (CCM)

 Some of these equipments are described in more detail below. Ladle turret One very important part of a CC machine is the ladle turret. It is mounted at the reinforced concrete base. It holds the steel teeming ladles, which can weigh up to 300 t. By means of the ladle turret, the steel teeming ladles are alternately slewed into pouring and charging position. This function ensures the uninterrupted operation of the CC machine. While one ladle is being emptied, a full ladle is provided on the other side. The bearings in the ladle turret, in spite of being subjected to high forces and considerable tilting moments, reach service lives of more than 10 years. Ladle turret supports the ladles and its hydraulic system with rotary arms has the mechanism to allow the ladles to be raised and lowered whilst maintaining a horizontal position. Also strain gauge load cell is incorporated in the ladle turret to allow the weight of the ladles to be continuously monitored. Variable frequency AC moto...

Continuous casting machine equipment The main equipments of a CC machine constitute  (i) ladle turret along with turret weighing system and ladle cover manipulator,  (ii) tundish and tundish car along with tundish weighing system, tundish preheater and dryer,  (iii) mould and mould oscillation along with mould level control and electromagnetic stirrer,  (iv) secondary cooling consisting of strand cooling, strand containment and guiding,  (v) withdrawal and straightener,  (vi) dummy bar, dummy bar parking and dummy bar disconnect roll unit, (vii) pinch roll and torch cut off unit, (viii) Product identification system, and  (ix) Roller table and product discharge system.  [Some of these equipments are described in more detail below in next post...keep in touch with me]

Continuous Casting Machines and their Types Continuous casting (CC) is a process of producing an infinite solid strand from liquid steel by continuously solidifying it as it moves through a CC machine. It is the predominant process route in a modern steel plant which links steelmaking with hot rolling of steel. In the CC machine, the liquid steel is solidified into a semi-finished steel product for subsequent rolling in the hot rolling mill. The basic operation of the CC machine is to convert liquid steel of a given composition into a strand of desired shape and size through a group of operations. Continuous casting is distinguished from other solidification processes by its ‘steady state’ appearance. That is, the liquid steel freezes against the mould walls and is withdrawn from the bottom of the mould at a rate which keeps the solid / liquid interface at a constant position with time, relative to an outside observer. Major types of continuous casting machines are given in Fig 1. Fig ...

Basics  of Continuous Casting of Steel Hot Strip Mill: Process : Continuous casting, also known as strand casting, is the process where a metal is heated until it liquefies. The molten metal is then allowed to solidify until it becomes a semi-finished slab that is later rolled in the finishing mill. It is used to cast metals of uninterrupted lengths. In this process, the molten metal is continuously supplied to the mold. The mold has an indeterminate length. When the molten metal is cast through a mold, it keeps travelling downward increasing in its length as the time passes by. The molten metal is continuously passed through the mold, at the same rate to match the solidifying casting. This results in casting of long strands of metal. The whole process of continuous casting is a precisely deliberated process that can produce astounding results. Benefits of continuous casting Unlike other processes of casting, the time line of steps in continuous casting is entirely different. While...