Tubular electric furnace is widely used in ceramics, metallurgy, electronics, glass, chemical industry, machinery, refractories, new material development, special materials, building materials and other fields. Small series to show you how to tube electric furnace to pass inert gas.
1. Connect the working gas circuit and connect the gas outlet end of the tubular electric furnace to the mechanical pump.
2. Open the air inlet valve of the tubular furnace, close the vacuum pump power, open the air outlet valve (pay attention to the flange to avoid excessive force on the furnace tube), and pump out the corundum tube and gas pipeline.
3. When the vacuum gauge of the tubular electric furnace reaches -0.1 (pointer ends), close the air outlet valve and the air inlet valve.
4. Turn the knob counterclockwise to open the cylinder main valve and clockwise to slowly open the outlet pressure reducing valve, so that the outlet pressure is at 0.004mpa (2 small grids).
5. Turn the knob counterclockwise to slowly open the air inlet valve of the tubular electric furnace; Pay close attention to the barometer of the tubular electric furnace and confirm that the air pressure is below 0.08mpa (if the air pressure is higher than 0.08mpa, open the outlet valve of the tubular electric furnace for air discharge).
6. When the pressure is stable, close the inlet valve of the tubular furnace, open the outlet valve, vacuum to -0.1, and close the outlet valve of the tubular furnace.
7. Repeat steps 4 and 5 twice.
What kinds of tubular electric furnace are there?
Tubular furnace is a common material sintering equipment in laboratory. Then what kind of tubular furnace are there?
1. According to the temperature and heating elements of the tubular furnace, there are 1200℃ resistance wire tube furnace, 1400℃ silicon carbide tube furnace and 1600 ℃ silicon molybdenum tube furnace.
2. According to the material of the furnace tube, there are quartz tube furnace, stainless steel tube furnace and corundum tube furnace.
3, according to the heating part of the structure, there are open tubular furnace and integrated tubular furnace.
4, according to the furnace structure, horizontal tube furnace, vertical (vertical) tube furnace, multi-station tube furnace, inclined tube furnace, rotating tube furnace, sliding rail tube furnace.
5, according to the temperature control area can fly for single temperature zone tube furnace and multi-temperature zone tube furnace (such as, double temperature zone tube furnace, three temperature zone tube furnace, five temperature zone tube furnace).
7, according to the vacuum can be divided into high, low vacuum tube furnace.
8, other can also be used: such as rapid annealing tube furnace, CVD tube furnace, PECVD tube furnace.
The tube type electric furnace application range is very wide, to the tube type electric furnace classification is to better understand the performance of the tube type furnace and work, such as the tube type electric furnace any question can contact xiaobian for you to answer!
On 2018-08-08 11:45:46
