Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with _____________ bricks?
Correct answer: C. Bakelite impregnated or fused periclase
- A. Semi-silica
- B. Silica
- C. Bakelite impregnated or fused periclase
- D. Fireclay
Explanation
Slide-gate components face severe abrasion, thermal shock, and molten-steel contact, so they use dense fused periclase or bakelite-impregnated refractory blocks. Ordinary silica or fireclay bricks do not provide comparable service performance.
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