Forno de resistência ao tipo grande do poço

Large pit type resistance furnaces are generally used for heat treatment of large-diameter workpieces and large-sized annular workpieces. They are suitable for annealing, quenching, and tempering heat treatment of extra-long rods and shafts. The deformation of vertically placed or mounted workpieces is small. Large pit-type furnaces or deep pit furnaces are generally insulated by full-fiber furnace linings. Since large pit-type furnaces are very large in depth and diameter, in order to ensure uniform temperature at each point in the working area of the furnace, especially to reduce the temperature difference in the upper and lower depth directions, special heating elements are designed for such pit-type furnaces. They are not only professionally made with upper and lower multi-section partitions, but also each section is independently controlled with high precision by a microcomputer program. The lining is insulated and energy-saving, and the empty furnace loss is small, saving 30-50% of electricity year-on-year. Large pit-type furnaces and deep pit furnaces can be used for high-temperature, medium-temperature, and low-temperature work, and can be Utilizado para recozimento, tambor, temperamento e outras fins de tratamento térmico para materiais metálicos e peças mecânicas, como aço de liga de liga, o aço alto e o aço de alta manganesa . O diâmetro de um grande forno de poço pode atingir 6 metros, e a profundidade de um forno profundo pode atingir 27 medidores.