Tube furnace use and maintenance matters
1, when used again after a tube furnace for the first time or for long periods, must be oven. Ovens time should be at room temperature 200 ℃ four hours. 200 ℃ to 600 ℃ four hours. When used, the furnace temperature can not exceed the rated temperature, so as not to burn the heating element. Prohibit the furnace perfusion various liquid and easily dissolved metals, Burnout furnace preferably is below the maximum temperature 50 ℃ work, then furnace wire has a longer life.
2, the tube furnace and the controller must not exceed 85 in relative humidity, no work place conductive dust, explosive gas or corrosive gases. Where oil and the like with the metal materials to be heated, a large number of volatile gases will impact and corrosion heating element surface, so that the destruction and shortened life expectancy. Therefore, the heating should be timely prevention and good sealed containers or appropriate holes to be eliminated.
3 furnace controller should be limited to use in an ambient temperature range of 0-40 ℃.
4, according to the technical requirements, always check the furnace regularly, lines connecting controller wiring is good, whether the phenomenon stranded stuck indicator pointer movement and electricity meter calibration potentiometer because magnets, demagnetization, rose silk, shrapnel error caused by fatigue, balance destruction increases circumstances.
5, tube furnace thermocouples do not suddenly pull out at high temperatures to prevent jacket burst.
6, keep a tube furnace hearth clean, timely removal of things like the furnace oxide.