STAINLESS STEEL SHEET FOR ELECTROMAGNETIC INDUCTION HEATING

• Main Authors: SATSUNOKI TOMIO, HASHIMOTO MASAAKI
• Format: Patent
• Language: English
• Published: 13.08.1996
• Edition: 6
• Subjects: ALLOYS; APPARATUS FOR MAKING BEVERAGES; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; FURNITURE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HUMAN NECESSITIES; KITCHEN EQUIPMENT; METALLURGY; SPICE MILLS; SUCTION CLEANERS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PURPOSE: To produce an inner pot material having superior electromagnetic induction heating characteristic and excellent in adhesion to fluororesin by specifying a composition consisting of Cr, Al, impurities and Fe, and also specifying electric specific resistivity, surface roughness and thickness of Al oxide film, respectively. CONSTITUTION: An alloy, having a composition which consists of, by weight, 10-35% Cr, 2.5-10.0% Al, and the balance essentially Fe and further contains, if necessary, <=1.0% of one or more elements among Ti, Nb, Zr, V, W, Ta, Hf, B, and REM and further <=10% of one or more elements among Ni, Mo, Cu, and Co and in which the contents of C, N, Mn, and S as impurities are regulated to <=0.05%, <=0.05%, <=2.0%, and <=0.01%, respectively, is formed into a sheet. In the state of this sheet, electric specific resistivity, surface roughness, and the thickness of an Al oxide film in the surface layer are regulated to 110-200μΩ.cm, 0.02-3.0μm Ra, and 80-850 , respectively. By this method, the stainless steel sheet for electromagnetic induction heating, as an inner pot material, composed of a single material easy of scrapping can be obtained.