The invention relates a pure Calcium Cored Wire Manufacturing Technique for Use in a Specific Iron and Steel Enterprise External Refining Process. Its goal is to provide a manufacturing method that overcomes the problems with conventional calcium-cored wires used in ladle metalurgy. These problems include the oxidation and easy degradation of the metal calcium while it is transported through the system. They also include the fact that it is not tightly packed and can contaminate the inclusions of molten steel.
Cored wire is made from a cold rolled low carbon steel strip wrapped with alloy powder. The alloy powder can be varied and can be divided into many different types such as silicon, calcium, aluminum, manganese or barium and so on. The cored wire is rolled into a composite material and then passed through the slag layer by means of a ladle feeding unit. The cored wire is then injected into the steel melt.
During this injection stage, it is vital that the cored-wire does not lose its compactness and that the core chemistry is not affected by the high temperatures in the steel melt. If the cored-wire becomes loose in the slag and disintegrates, a slag plug can form and clog up the ladle. The resulting hard slag plug may be difficult to get out and can have serious consequences on the metallurgical processing of the steel melting.
The cores of conventional cored steel wires are hollow and very uneven. Due to this, they can easily break while being fed through a system and cause serious problems during the steel production. On the other hand cored wires, with a solid Calcium core, do not experience these problems and are fed by existing systems. This reduces the workload of workers and improves overall steel production quality.
The new cored wire has a high density and is made of a special kind of pure calcium metal. It is produced using a novel production technology which has been developed in Germany and Mexico. This new method offers a significant improvement over conventional cored steel wires. It is not only more compact, homogeneous and can be produced in any sheath thickness. This allows steel plants to use their existing feeders for wires and avoid costly lance systems.
The core of the new pure calcium cored wire is produced from a high purity pure calcium ingot and is then coated with a cold rolled low carbon steel strip. This ensures a very high level of accuracy and consistency. This is particularly important when the metallurgical process is to control inclusions in the steel melt. This is a critical process that determines the quality of the steel product. It is also the basis for high metallurgical performance of the new cored cables. This process also contributes to a very efficient steel production with a reduced carbon footprint.
English
Write a Message