Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1995-07-14
1997-03-11
Ip, Sikyin
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148112, 148120, H01F 104
Patent
active
056096968
ABSTRACT:
Batch annealed, semi-processed and fully processed motor lamination steels are made by processes which subject a slab having an ultra low carbon composition (less than 0.01%) to at least the following steps: hot rolling with an austenite finishing temperature, coiling at a temperature ranging from 1300.degree.-1450.degree. F., and light temper rolling (less than 1.0% reduction) or leveling; reheating at a temperature less than 2300.degree. F., hot rolling with a ferrite finishing temperature, coiling at a temperature less than 1200.degree. F., and light temper rolling or leveling; or hot rolling with a ferrite finishing temperature, coiling at a temperature ranging from 1100.degree.-1350.degree. F. without a subsequent hot band anneal, and light temper rolling or leveling.
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Beatty Gerald F.
Blotzer Richard J.
Larson Ann M. R.
Lauer Barry A.
Ip Sikyin
LTV Steel Company, Inc.
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