Frame-type Heater is mainly used for internal thermal integral heat treatment of large containers. Put the heater in the container and fixed with a shelf. Connect the power supply with steel wire. Wrap the workpiece with aluminum silicate insulation cotton. Connect the power cord and thermocouple to the heat treatment machine. After that, the heater can run normally. Frame-type heater is characterized by convenience and high thermal efficiency. Its power is generally 5KW, 10KW. The suitable heating treatment machine are ZWK-T and CWK-T.