Question

In continuous casting process, the mould is generally made of

• A. Cast Iron
• B. Bronze
• C. Copper
• D. Tungsten carbide

Hint:

Copper is the king of heat transfer. Fast heat removal is critical for forming the steel shell in continuous casting.

Answer 1

The Correct Option is C

Step 1: Concept In continuous casting, the mould must extract heat rapidly from the liquid steel to form a solid skin.

Step 2: Meaning The mould material must possess exceptionally high thermal conductivity and be able to withstand thermal cycling.

Step 3: Analysis
Cast iron and bronze have lower thermal conductivity compared to copper. Pure copper or high-conductivity copper alloys provide the best heat transfer rates for this application.

Step 4: Conclusion Consequently, copper is the standard material used for the moulds in continuous casting machines. Final Answer: (C)