In Reply to: isn't the iron in the old ones pure, and the newer ones have a lot of recycled metal posted by Timbo in Oz on February 15, 2012 at 23:39:29:
The transformer laminations are made from grain oriented silicon steel (either M4 or M6). The composition, mechanical handling, and heat treating of the metal are pretty rigorously defined. I don't think it matters if the iron entering the steel making process is "virgin" pig from a blast furnace or scrap, as correct composition is correct composition. It's the old tale of the difference between path functions and state functions.
Eli D.
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Follow Ups
- RE: isn't the iron in the old ones pure, and the newer ones have a lot of recycled metal - Eli Duttman 19:37:33 02/16/12 (1)
- RE: isn't the iron in the old ones pure, and the newer ones have a lot of recycled metal - Crazy Dave 08:52:19 02/17/12 (0)