Back to results
US 2014/0150249 A1Published application
Cold rolled motor lamination electrical steels with reduced aging and improved electrical properties
OwnerGwynne Johnstoninventor
Life of this patent
Estimating the term…
Abstract
A semi-processed electrical steel is provided comprising the elements .005 ≦ Tin ≦ .09% 0 < Carbon ≦ 0.050% .10 ≦ Manganese ≦ 1.00% .005 ≦ Phosphorus ≦ .120% .0 < Sulfur ≦ .010% .50 ≦ Silicon ≦ 2.50% .01 ≦ Aluminum ≦ 1.60% .0 ≦ Antimony < .02% Iron—at least substantial portion of balance
Claims11
A semi-processed cold rolled lamination electrical steel, comprising:
- .005 ≦
- Tin ≦
- .09%
- .0 <
- Carbon ≦
- 0.050%
- .10 ≦
- Manganese ≦
- 1.00%
- .005 ≦
- Phosphorus ≦
- .120%
- .0 <
- Sulfur ≦
- .010%
- .50 ≦
- Silicon ≦
- 2.50%
- .01 ≦
- Aluminum ≦
- 1.60%
- .0 ≦
- Antimony <
- .02%
- Iron—at least substantial portion of balance
22 more elements
A method for producing a magnetic core, comprising the steps of:
- providing a semi-processed cold rolled electrical steel comprising
- .005 ≦
- Tin ≦
- .09%
- .0 <
- Carbon ≦
- 0.050%
- .10 ≦
- Manganese ≦
- 1.00%
- .005 ≦
- Phosphorus ≦
- .120%
- .0 <
- Sulfur ≦
- .010%
- .50 ≦
- Silicon ≦
- 2.50%
- .01 ≦
- Aluminum ≦
- 1.60%
- .0 ≦
- Antimony <
- .02%
- Iron—at least substantial portion of balance;
- stamping the semi-processed electrical steel to create stamped parts;
- and
- assembling and annealing the stamped parts after the stamping to form the magnetic core.
26 more elements
Dependencies are inferred from the claim text.