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Just learned the old Bessemer converter at the Pittsburgh plant could process a 25 ton heat in under 20 minutes.
I was reading a history book about steel towns from the library. It said the Bessemer process was so fast, the whole pour was done before the furnace lining got too cold. I always thought those big heats took hours, not minutes. Has anyone else come across old facts about our trade that blew their mind?
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paige_wells446mo ago
That speed is wild. Makes you wonder how many heats they could run back to back before a full reline.
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seanperry6mo ago
Probably not many, honestly. That kind of wear has to be crazy.
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spencerw724mo ago
Whoa, I never even thought about the heat cycles. But it's not just the liner itself, you know? Think about the chassis and the suspension components. All that flex and rebound at 200+ mph, the dampers are basically fighting for their life every single run. Plus the wheel bearings. I bet after a couple back to back passes the bearings are screaming hot and the oil in them is basically soup. They probably have to let the whole car cool down for a while, not just swap the liner.
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