Title

SLIDE GATE PLATES STATE OF ART FOR SI KILLED STEEL

SLIDE GATE PLATES STATE OF ART FOR SI KILLED STEEL

Authorship

NASCIMENTO, VINICIUS FRANCO DO; ESTEVES, VASCO; TAGLIATTI, JULIO; ARAÚJO, EVERALDO; ADAMI, ANDERSON

NASCIMENTO, VINICIUS FRANCO DO

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ESTEVES, VASCO

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TAGLIATTI, JULIO

I am this author

ARAÚJO, EVERALDO

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ADAMI, ANDERSON

I am this author

DOI

10.5151/2594-5300-42223

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Abstract

This study evaluates the performance of advanced slide gate plates, specifically the L-Tech model utilizing TS3378 refractory composition, in the casting of silicon-killed steels. Silicon-killed steels, known for their improved cleanliness and mechanical properties, present specific challenges for refractory performance due to high-temperature interactions and aggressive slag environments. The research compared the L-Tech plates to traditional TS3214 and TS3182 plates under real operational conditions across multiple South American steel plants. Key evaluation metrics included bore erosion, surface wear, and oxidation resistance, assessed through post-mortem analysis. Results demonstrated that L-Tech plates provided up to 40% increased service life, with lower wear rates and enhanced oxidation resistance. Operational benefits included reduced replacement frequency, improved safety and ergonomics, and a lower environmental footprint. The superior thermal and mechanical properties of the TS3378 formulation contribute to increased casting reliability and support sustainable steelmaking practices, confirming the L-Tech plate as a high-performance solution for Si-killed steel applications.

THIS STUDY EVALUATES THE PERFORMANCE OF ADVANCED SLIDE GATE PLATES, SPECIFICALLY THE L-TECH MODEL UTILIZING TS3378 REFRACTORY COMPOSITION, IN THE CASTING OF SILICON-KILLED STEELS. SILICON-KILLED STEELS, KNOWN FOR THEIR IMPROVED CLEANLINESS AND MECHANICAL PROPERTIES, PRESENT SPECIFIC CHALLENGES FOR REFRACTORY PERFORMANCE DUE TO HIGH-TEMPERATURE INTERACTIONS AND AGGRESSIVE SLAG ENVIRONMENTS. THE RESEARCH COMPARED THE L-TECH PLATES TO TRADITIONAL TS3214 AND TS3182 PLATES UNDER REAL OPERATIONAL CONDITIONS ACROSS MULTIPLE SOUTH AMERICAN STEEL PLANTS. KEY EVALUATION METRICS INCLUDED BORE EROSION, SURFACE WEAR, AND OXIDATION RESISTANCE, ASSESSED THROUGH POST-MORTEM ANALYSIS. RESULTS DEMONSTRATED THAT L-TECH PLATES PROVIDED UP TO 40% INCREASED SERVICE LIFE, WITH LOWER WEAR RATES AND ENHANCED OXIDATION RESISTANCE. OPERATIONAL BENEFITS INCLUDED REDUCED REPLACEMENT FREQUENCY, IMPROVED SAFETY AND ERGONOMICS, AND A LOWER ENVIRONMENTAL FOOTPRINT. THE SUPERIOR THERMAL AND MECHANICAL PROPERTIES OF THE TS3378 FORMULATION CONTRIBUTE TO INCREASED CASTING RELIABILITY AND SUPPORT SUSTAINABLE STEELMAKING PRACTICES, CONFIRMING THE L-TECH PLATE AS A HIGH-PERFORMANCE SOLUTION FOR SI-KILLED STEEL APPLICATIONS.

Keywords

Slide Gate Plates, Silicon-Killed Steel, Refractory Wear, L-Tech Plates

Slide Gate Plates, Silicon-Killed Steel, Refractory Wear, L-Tech Plates