Crossword Puzzle

3. A furnace used to produce pig iron from iron ore by reducing iron oxides with carbon.
9. A natural rock or mineral deposit containing valuable metals that can be extracted.
10. A large block of metal formed by casting molten metal into a mould for storage or further processing.
12. A non-destructive testing method that uses high-frequency sound waves to detect internal defects.
15. The process of examining components to ensure they meet required specifications and standards.
18. A device that supplies forced air to a furnace to support combustion.
19. A substance added during melting to combine with impurities and help remove them as slag.

1. A coil in an induction furnace that carries alternating current and produces a magnetic field to heat and melt metal.
2. The materials loaded into a furnace for melting, such as ore, coke, limestone, and scrap metal.
4. The process of replacing or repairing the internal refractory lining of a furnace.
5. The process of removing rough surfaces, excess metal, and unwanted projections from a casting using abrasive tools.
6. The removal of unwanted excess metal, such as sprues, runners, and risers, from a casting.
7. The process of repairing, reworking, or recovering defective castings so they can be used.
8. The bottom area of a furnace where molten metal and slag collect.
11. The channel or opening through which molten metal is poured or drained from a furnace.
13. A molten waste material formed when flux combines with impurities during metal production.
14. A nozzle through which air or oxygen is blown into a furnace.
16. A cylindrical, vertical furnace used in foundries to melt cast iron, typically using coke as fuel.
17. A carbon-rich fuel produced by heating coal without oxygen, used as a fuel and reducing agent in metal production.