Question
Download Solution PDFWhich of the following is the correct order of cooling media for increasing cooling rate?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The cooling rate affects the hardness of steel. To increase the hardness of steel, the cooling rate should be increased.
Commonly used cooling media are:
- Brine: the fastest cooling media
- water: medium cooling rate
- Oil: slow cooling rate
- Air: slowest cooling rate as compared to oil.
So, the increasing order of cooling rate is Air, Fused salt, Oil and Water.
Thus, option (2) is the correct answer.
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