KTL1400 atmosphere tube furnace with silicon carbon rod as the heating element, Using the double shell structure and yu electric temperature control instrument, Multiple program temperature control, Phase shift triggered, SCR controlled, The furnace is made of alumina polycrystalline fiber material, Control the intake flow tube at both ends of the stainless steel flange sealing, The stainless steel flange is fitted with air nozzle, valve and pressure gauge, The vacuum degree can reach 10-3 Pa, The furnace is of the horizontal type, convenient to use, Simple operation The furnace has the advantages of temperature field balance, low surface temperature, fast lifting temperature rate, energy saving and so on, It is an ideal product for universities, scientific research institutes, industrial and mining enterprises to do high temperature atmosphere sintering, atmosphere reduction, CVD experiment and vacuum annealing.