Thermally hardening saw blade teeth - using induction devices to heat teeth in controlled manner via eddy currents

• Main Authors: FUNK, GUNTER. DR., 7000 STUTTGART, DE, IMBODEN, WILLY, ST. NIKLAUS, CH, SINGER, HUBERT, 7149 FREIBERG, DE, AUTENRIETH, HEINZ, 7015 KORNTAL-MUENCHINGEN, DE, LINK, FRITZ-OTTO, 7130 MUEHLACKER, DE
• Format: Patent
• Language: English; German
• Published: 10.02.1994
• Edition: 5
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

Appts. for thermally hardening the teeth of saw blades (22) comprises an induction device (10) made up of at least two loop-shaped conductio (14) spaced apart through which the part to be hardened is moved. ADVANTAGE - The magnetic field produced by the device (10) cuts perpendicularly through the teeth and produces eddy currents which avoid the overheating of the tip of the teeth and produces an automatic quenching effect.