Heat treatment anti-oxidation protection device and operation method

• Main Authors: PANG SHULAI, LI WANHUI, LI YUBO, GAO DIANBAO, WANG TIANYING, ZHANG XIAOPENG
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: CHEMISTRY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

The invention relates to a heat treatment anti-oxidation protection device and an operation method.The heat treatment anti-oxidation protection device comprises a shielding device and a gas replacement device, the shielding device is placed inside a heat treatment furnace, and the gas replacement device is placed outside the heat treatment furnace; the shielding device comprises a gland, a shroud, a high-temperature sealant, a locking hand wheel, a main air inlet pipe and an armored galvanic couple, a shroud annular sealing groove is formed in the edge of the top of the shroud, a gland annular sealing groove is formed in the edge of the bottom of the gland, and the shroud annular sealing groove and the gland annular sealing groove are matched and filled with the high-temperature sealant; a plurality of locking hand wheels are evenly distributed between the edge of the gland and the edge of the top of the shroud, a main air inlet pipe is installed on the outer wall of the lower portion of the shroud, a circle