Product Description: Seamless Calcium Core Wire
Seamless Calcium Core Wire is a specialized metallurgical product used primarily in the steelmaking industry for deoxidation, desulfurization, and inclusion modification processes. This wire is designed to improve the quality and purity of steel by introducing calcium into the molten steel in a controlled and efficient manner.
Key Features:
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High Calcium Content: The internal core of the wire is composed of high-purity metal calcium, typically with a content of 97% or more。
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Seamless Design: The wire is made using a seamless process, which ensures a higher calcium absorption rate and reduces the operational intensity of the steel mill。
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Long Storage Life: The seamless design also allows for long-term storage without oxidation, with the calcium core remaining effective for up to two years。
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Reduced Splashing: During wire feeding, the seamless calcium wire reduces the splashing of molten steel, which is a common issue with regular calcium wires。
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High Yield Rate: The wire offers a high yield rate, meaning less calcium is consumed for the same treatment effect, reducing costs。
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Uniformity: The wire ensures a uniform distribution of calcium, with a stable calcium content of 52g/m, leading to high reproducibility and minimal fluctuations in residual calcium values
Specifications:
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Diameter: Common diameters include 9mm, 10mm, 13mm, and 16mm。
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Steel Strip Thickness: Typically ranges from 0.35mm to 1.5mm, depending on the diameter。
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Core Powder Weight: Varies based on the diameter, with common weights being 230g/m for 13mm diameter wire。
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Uniformity: The core material composition is uniform, with a variation of 2.5-5%。
Applications:
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Deoxidation: Used as a deoxidizer for refining molten steel, reducing nozzle blockage and preventing the formation of long strip-shaped sulfide inclusions。
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Desulfurization: Helps in the removal of sulfur from molten steel, improving the purity and quality of the final product。
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Inclusion Modification: Transforms alumina into low melting point calcium-aluminates, which avoids nozzle clogging and controls the shape of oxide and sulfide inclusions。
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Microalloying: Used for calcium treatment and microalloying in ladle metallurgy, offering precise control over the chemical composition of the steel。
Benefits:
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Improved Steel Quality: Enhances the mechanical properties and surface quality of steel by reducing impurities。
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Cost-Effective: Reduces the amount of precious elements needed and lowers refining costs。
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Environmentally Friendly: The wire feeding technology is simple, requires minimal investment, and is completely environmentally friendly。
Melting Point: 850℃ 
Boiling Point:1480℃
Density:1.55/cm³
Ca:97±1%
Diameter:9-9.5mm/10-10.5mm
Dosage:0.35-0.5kg/T
Ingredient
| Ca(%) | Calcium filament(g/m)
| Strip thickness(mm) | Weight of steel strip(g/m) | Core weight(g) | Diameter of Wire(mm) |
Content | 97±1
| 52-58 | 1±0.2 | <300 | <360
| 9-9.5
|
97±1 | 52-60 | 1.5±0.1
| <410 | <470 | 10-10.5 |