Muffle furnace as an auxiliary equipment, widely used in pre-drying of laboratory samples for analysis, metallurgical laboratory for fusion experiments, heat treatment departments for annealing, quenching experiments, as well as other experimental high-temperature heating needs. 
 1.2 Instrument characteristics 
 TC series of special into a muffle furnace with ceramic fiber insulation materials, light weight, good insulation properties, heat quickly, reduce energy consumption, thermal pollution.