Question:
The main function of the RH process of steel treatment is to
The main function of the RH process of steel treatment is to
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RH Process = Vacuum Degassing. It "sucks" the unwanted gases out of the liquid steel.
Updated On: Jul 4, 2026
- Remove carbon from molten steel
- Increase the carbon content of steel
- Preheat the molten steel before casting
- Remove dissolved gases such as $H_{2}, N_{2}, SO_{2}$
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The Correct Option is D
Solution and Explanation
Step 1: Concept The RH (Ruhrstahl-Heraeus) process is a type of secondary steelmaking or ladle metallurgy treatment.
Step 2: Meaning It is a vacuum degasser where molten steel is circulated through a vacuum chamber using an inert lift gas.
Step 3: Analysis Under vacuum, the partial pressure of dissolved gases drops significantly, causing them to leave the liquid steel.
Step 4: Conclusion The primary metallurgical goal of the RH process is the degassing of steel, specifically the removal of hydrogen and nitrogen. Final Answer: (D)
Step 2: Meaning It is a vacuum degasser where molten steel is circulated through a vacuum chamber using an inert lift gas.
Step 3: Analysis Under vacuum, the partial pressure of dissolved gases drops significantly, causing them to leave the liquid steel.
Step 4: Conclusion The primary metallurgical goal of the RH process is the degassing of steel, specifically the removal of hydrogen and nitrogen. Final Answer: (D)
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