1·Bogie hearth resistance furnace bearing and susceptible to collision parts with high strength refractory brick masonry, and the use of water glass during building the mud, so the strength increase.
台车式电阻炉的炉膛的承重和易受冲撞部位用高强度耐火砖砌筑，并且在砌筑过程中使用掺水玻璃的的泥浆，所以炉膛强度大幅提高。