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Applied Study of Dynamic Soft Reduction for Bloom Continuous Casting

Yang Su-bo

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Abstract

Focused on typical steel grades such as heavy rail steel and hard wire steel, experiments and studies on application of soft reduction have been carried out at Panzhihua Steel. The results showed that the yield of qualified bloom can reach to 100% with central porosity and segregation of ≤1.0, central shrinkage of ≤0.5, and central segregation index of carbon of ≤1.05. The qualified blooms are delivered to produce heavy rail for high-speed tracks.

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What this paper is about

Focused on typical steel grades such as heavy rail steel and hard wire steel, experiments and studies on application of soft reduction have been carried out at Panzhihua Steel. The results showed that the yield of qualified bloom can reach to 100% with central porosity and segregation of ≤1.0, central shrinkage of ≤0.5, and central segregation index of carbon of ≤1.05. The qualified blooms are delivered to produce heavy rail for high-speed tracks.

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Available abstract

Focused on typical steel grades such as heavy rail steel and hard wire steel, experiments and studies on application of soft reduction have been carried out at Panzhihua Steel. The results showed that the yield of qualified bloom can reach to 100% with central porosity and segregation of ≤1.0, central shrinkage of ≤0.5, and central segregation index of carbon of ≤1.05. The qualified blooms are delivered to produce heavy rail for high-speed tracks.

Key concepts: Bloom, Shrinkage, Reduction (mathematics), Casting, Continuous casting, Metallurgy, Porosity, Yield (engineering)

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