Controllable muffle furnace heaies up

The utility model discloses a controllable muffle furnace heaies up, including furnace body and control box, the furnace body includes shell, heat preservation, furnace, heating element, first thermocouple and second thermocouple, the shell cladding is in on the heat preservation, heat insulation layer covers furnace is last, heating element with first thermocouple is established respectively in the furnace just heating element with the contact of first thermocouple, the second thermocouple is established on the furnace inner wall, heating element with the control box electricity is connected, first thermocouple with the second thermocouple respectively with control box communication connection, the furnace body is established the top of control box. The utility model discloses the intensification controllability is stronger, utilizes and to monitor respectively and to adjust loading voltage on heating element temperature inside heating element's temperature and the furnace, and then avoid temperature runaway