PRODUCTION OF STEEL SHEET FOR DIRECT ONE COATING PORCELAIN ENAMELING

Japanese Patent JP3613810

B2

PURPOSE: To produce a steel sheet for direct one coating porcelain enameling, hardly causing porcelain enameling defects, such as fishscale and blister.
CONSTITUTION: A continuously cast slab, which has a composition consisting of, by weight, ≤0.0025% C, ≤0.02% Si, 0.20-0.50% Mn, ≤0.010% P, ≤0.020% S, ≤0.0030% N, 0.0300-0.0600% O (oxygen), 0.0020-0.0080% B, 0.020-0.060% Cu, and the balance Fe with impurities and satisfying the inequality P(%)≤10×[B(%) =(11/14)N(%)], is hot-rolled, cold-rolled, and then annealed at a temp. in the region between the recrystallization temp. and the Ac3 point. By this method, the steel sheet, hardly causing defects, such as fishscale and blister, excellent in adhesion of porcelain enamel, and suitable for use in the production of direct one coated porcelain enameled products, can be produced.

JPH0776439	[Title of the Invention] A method for producing a two-layer alloyed hot-dip galvanized steel sheet.
JPH06505771	INDUSTRIAL APPLICABILITY: A method and an apparatus for producing a partially cured product.

Shinichiro Katsu

JP16522894A

January 26, 2005

July 18, 1994

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SUMITOMO METAL INDUSTRIES,LTD.

C21D9/46; C22C38/00; C22C38/16; (IPC1-7): C21D9/46; C22C38/00; C22C38/16

JP6057374A
JP6158174A
JP6033187A
JP3010048A

Mikiji Sugioka
Terutada Hogami
Michio Mori

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