Insulating coating compositions applied on electrical steel shee

Details Insulating coating compositions applied on electrical steel shee Insulating coating compositions applied on electrical steel shee

1980-02-04

1981-09-08

Smith, Ronald H.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

336219, 427 44, 427 541, 427129, 427130, 428418, 4284255, 4284258, 428439, 428447, 428450, 428457, 428458, 260 37SB, 260 37EP, 260 37N, 260 39SB, B32B 1508, B32B 2738

Patent

active

042884926

ABSTRACT:
A coating composition including inorganic compounds dispersed in an organic material capable upon exposure to UV rays or electron beams of producing an adherent insulating film of high dielectric properties on the surfaces of electro-sheets of ferrous material. The coated electro-sheets are annealed after the forming, for example, cutting or punching operation in order to remove thereby imparted stresses without impairing the dielectric properties.

REFERENCES:
patent: 1924311 (1933-08-01), Frey
patent: 3666568 (1970-06-01), Shimanaka
patent: 3840448 (1974-10-01), Osborn et al.
patent: 3924022 (1975-12-01), Schroeter et al.
patent: 3945862 (1976-03-01), Lee et al.
patent: 3947373 (1976-03-01), Sobajima et al.
patent: 3970535 (1976-07-01), McGinniss
patent: 3976553 (1976-08-01), Larsen
patent: 3979270 (1976-09-01), Trecker et al.
patent: 3979426 (1976-09-01), Demajistre
patent: 4071425 (1978-01-01), Guarino et al.

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