What is alloy cored wire?

In the process of modern metallurgy, it is usually necessary to add various solvents and trace alloys to the molten steel, resulting in great waste. In order to improve the efficiency of microalloy and solvent utilization, cored wire was invented. Adding core-cored wire to molten steel with ladle wire feeding device has good metallurgical effect and is a mature technology.

There are generally three ways to add alloy core-coated wire powder: 1. Core-coated wire powder is to melt, crush, sift, and then pack into core-coated wire; 2, core-coated wire powder is mixed with powder of different density and different particles by artificial mixing into core-coated wire, but because of different powder specific gravity, it is very difficult to mix evenly; 3. The feeding method of coated wire powder is to use multiple hoppers for feeding. Because the specific gravity of various powders is different, the falling speed will be different, so it is difficult to accurately control the amount of different materials falling in the hopper, especially the uniformity of various powders.

The alloy cored wire powder is mixed and filled with high precision online cored wire without component segregation. Core-wire is formed by physical mixing of strip steel and powder of various compositions. Powder of different density and composition is evenly wrapped in core-wire in a certain proportion. The mixing method is: using high-precision belt to mix and combine online weighing, weighing with weighing unit, and then conveying with belt conveying device, and then using strip steel to mix and wrap all kinds of powder with different components and different materials together.

The main components of alloy cored wire powder are ferrosilicon and pure magnesium, which are mixed online by high precision belt with certain particle size and proportion. Taking the mixed spheroidization line as an example, the weight of each ball is 210g, of which 70% of ferrosilicon is 147g, and the magnesium particle is 63g. The precision of unit powder of cored wire produced by on-line mixing method is 1.2-1.8%.

Alloy cored wire powder does not need to melt a variety of materials can be fused together, through the online mixing method can be different density of a variety of powder in accordance with the process requirements are well mixed together, eliminating the process of melting a variety of materials uniformly fused, which will save a lot of electricity, greatly reduce the emission of harmful substances, greatly reduce labor and labor intensity, It has good economic and social benefits.

The alloy core-coated wire has the advantages of uniform core composition, high filling rate, suitable for various industries, effective reduction of production cost and storage time during smelting. The core-coated wire can be more convenient to add metallurgical materials to the molten steel in the steelmaking process of the manufacturer. The method of use is to insert the core-coated wire vertically into the hot metal or molten steel by the manufacturer's wire feeder, and fully melt the metallurgical materials such as the core-coated wire at the ideal depth and produce chemical reactions, effectively avoiding the reaction of the added elements with air and slag, and improving the absorption rate of the metallurgical materials of the manufacturer. The core-coated wire also has the function of refining and precision casting to change inclusions, alloying and purifying molten steel, which plays an important role in improving the quality of cast iron and cast steel, reducing the cost of casting and steelmaking, and improving the economic benefits of cast iron and cast steel.