High thermal conductivity corrosion-resistant carbon block for Ni-Fe electric furnace, and preparation method of high thermal conductivity corrosion-resistant carbon block

The invention provides a high thermal conductivity corrosion-resistant carbon block for a Ni-Fe electric furnace, and a preparation method of the high thermal conductivity corrosion-resistant carbon block. The high thermal conductivity corrosion-resistant carbon block is prepared from the following raw materials: 7-11 parts of 4-2mm electric calcined anthracite, 7-12 parts of 4-2mm graphite scrap,13-17 parts of 2-1mm electric calcined anthracite, 17-21 parts of 2-1mm graphite scrap, 8-12 parts of 1-0mm graphite scrap, 23-27 parts of less than or equal to 0.076mm electric calcined anthracite,8-12 parts of less than or equal to 0.076mm graphite powder, 3-5 parts of less than or equal to 0.076mm silicon metal and 18-19 parts of medium temperature pitch, wherein the electric calcined anthracite is obtained by carrying out electric calcining and high-temperature calcining on anthracite in an electrical calciner at the temperature of 2300-2500 DEG C. The carbon block prepared by the methodnot only has resistance of