Atmosphere protection brazing shield cuttertechnology

The invention provides an atmosphere protection brazing shield cutter technology. Theatmosphere protection brazing shield cutter technology comprises the steps that a cutter body, a hard alloy and a silver-copper welding piece areassembled into an assembly body, and an antioxidant brazing agent is coated on the surface of the hard alloy; the assembly body ispackaged in a graphite mold to form a graphite assembly; the graphite assembly is evenly arranged in an atmosphere protection furnace according to layers, and then heating and brazing are carried out accord to a set brazing process; after heating is carried out to the welding temperature, a forced air cooler in the furnace is adopted to reduce the temperature; the graphite assembly is discharged from the furnace after furnacecooling, and the graphite mold is removed after cooling to room temperature; and surface quenching treatment iscarried out on the brazed cutter body, and a abrasion-resistant layer iswelded to the assembly bodyto obtain a brazed shield