Carbide saw blade and welding method thereof

Abstract

This invention discloses the carbide saw blade and the welding method thereof. The method includes: S1, heating the carbide tool bit, the saw blade base, the welding wire and the welding flux that well-placed; S2, at temperature 760° C.-840° C., spreading the melted welding wire to the gap between the carbide tool bit and the saw blade base by using the wetting action of the welding flux; S3, cooling to obtain a preliminary welding body, when the temperature of the preliminary welding body is lower than 350° C., the preliminary welding body will be processed to first tempering; S4, within 1-3 hours after first tempering, second tempering the preliminary welding body to obtain carbide saw blade; second tempering process is performed in a sealed container, and in this container the temperature of each spatial location is consistent. This invention solves the problems of breaking of the tooth holder during cutting and tensile stress cracking between the adjacent sawteeth.

Dependencies are inferred from the claim text.