NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAME
A non-oriented electrical steel sheet is provided with a base material and an Fe—Ni alloy film formed on at least one surface of the base material. The Fe—Ni alloy film contains, by mass %, Fe: 10% to 40% and Ni: 60% to 90%, and has a thickness of 0.1 μm or more are provided.
1 . A non-oriented electrical steel sheet comprising:
a base material; and
an Fe—Ni alloy film formed on at least one surface of said base material, containing, by mass %, Fe: 10% to 40% and Ni: 60% to 90%, and having a thickness of 0.1 μm or more.
2 . The non-oriented electrical steel sheet according to claim 1 , wherein the thickness of said Fe—Ni alloy film is equal to or less than 0.6 μm.
3 . The non-oriented electrical steel sheet according to claim 1 , wherein
said base material contains, by mass %:
C: 0.05% or less;
Si: not less than 0.1% nor more than 7.0%; and
Al: not less than 0.01% nor more than 7.0%, and
a balance of said base material is composed of Fe and inevitable impurities.
4 . The non-oriented electrical steel sheet according to claim 2 , wherein
said base material contains, by mass %:
C: 0.05% or less;
Si: not less than 0.1% nor more than 7.0%; and
Al: not less than 0.01% nor more than 7.0%, and
a balance of said base material is composed of Fe and inevitable impurities.
5 . The non-oriented electrical steel sheet according to claim 1 , further comprising an insulating film formed on a surface of said base material.
6 . The non-oriented electrical steel sheet according to claim 2 , further comprising an insulating film formed on a surface of said base material.
7 . The non-oriented electrical steel sheet according to claim 3 , further comprising an insulating film formed on a surface of said base material.
8 . The non-oriented electrical steel sheet according to claim 4 , further comprising an insulating film formed on a surface of said base material.
9 . A method of manufacturing a non-oriented electrical steel sheet comprising:
forming, on at least one surface of a base material, an Fe—Ni alloy film that contains, by mass %, Fe: 10% to 40% and Ni: 60% to 90% to have a thickness of 0.1 μm or more.
10 . The method of manufacturing a non-oriented electrical steel sheet according to claim 9 , wherein the thickness of the Fe—Ni alloy film is equal to or less than 0.6 μm.
11 . The method of manufacturing a non-oriented electrical steel sheet according to claim 9 , wherein
the base material contains, by mass %:
C: 0.05% or less;
Si: not less than 0.1% nor more than 7.0%; and
Al: not less than 0.01% nor more than 7.0%, and
a balance of the base material is composed of Fe and inevitable impurities.
12 . The method of manufacturing a non-oriented electrical steel sheet according to claim 10 , wherein
the base material contains, by mass %:
C: 0.05% or less;
Si: not less than 0.1% nor more than 7.0%; and
Al: not less than 0.01% nor more than 7.0%, and
a balance of the base material is composed of Fe and inevitable impurities.
13 . The method of manufacturing a non-oriented electrical steel sheet according to claim 9 , further comprising forming an insulating film on a surface of the base material, before said forming the Fe—Ni alloy film.
14 . The method of manufacturing a non-oriented electrical steel sheet according to claim 9 , further comprising forming an insulating film on a surface of the base material, after said forming the Fe—Ni alloy film.
15 . The method of manufacturing a non-oriented electrical steel sheet according to claim 10 , further comprising forming an insulating film on a surface of the base material, before said forming the Fe—Ni alloy film.
16 . The method of manufacturing a non-oriented electrical steel sheet according to claim 10 , further comprising forming an insulating film on a surface of the base material, after said forming the Fe—Ni alloy film.