Calcium Silicon Cored Wire With Good Quality

Calcium silicon cored wire is a kind of linear material widely used in refining molten steel, which consists of a core powder layer and a sheath made of a strip steel sheet wrapped on the outer surface of the core powder layer. The core part of silicon-calcium cored wire is mainly composed of calcium silicon alloy powder, which has high silicon-calcium content to reduce oxidation loss and improve metal purity. It is made of thin strip steel and wrapped on the outer surface of the core powder layer to protect and transport the core powder layer.

The calcium silicon cored wire is continuously fed into the spoon through the wire feeder. When the sheath melts, the core powder layer directly contacts the molten steel for a chemical reaction, which effectively removes oxygen and sulfur from the molten steel and reduces oxide and sulfide inclusions. Calcium silicon cored wire can change the shape of inclusions, making them easier to float and be removed, thus improving the purity and quality of steel. Through deoxidation, desulfurization and inclusion removal, the calcium silicon cored wire can significantly improve the castability and mechanical properties of molten steel, such as improving the transverse impact toughness, plasticity and hot workability of steel.

In the casting process, calcium silicon cored wire can be used for inoculation treatment of castings. Inoculation treatment can improve the microstructure, mechanical properties and crack resistance of castings. As a kind of inoculant, the calcium silicon cored wire is added into the mold by wire feeding, which reacts with molten iron to achieve the inoculation effect. The use of calcium silicon cored wire helps reduce defects such as porosity and shrinkage porosity in castings and improves the compactness and surface quality of castings. This is of great significance for producing high-quality and high-precision castings.

The standard of calcium silicon cored wire strictly stipulates its performance, specifications and inspection methods to ensure the quality and safety of products. According to different application scenarios and performance requirements, the standards of calcium silicon cored wires can be divided into the following categories: classified by materials, such as stainless steel calcium silicon cored wires and carbon steel calcium silicate cored wires. According to specifications: such as round, flat, triangle and other different cross-sections of calcium silicate cored wires. Classification by use: such as silicon-calcium cored wire for steelmaking, silicon-calcium cored wire for casting, silicon-calcium cored wire for metal heat treatment, etc.

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