Procedure inflated tube furnace
Time：2015-03-06 09:16
Tube resistance furnace atmosphere mainly used in metallurgy, glass, heat treatment, lithium anode and cathode materials, new energy, and other industries measured abrasive materials under certain atmospheric conditions of professional equipment, tube furnace during use sometimes need to access gas, then the ventilation process should be how to regulate the operation to avoid mistakes?
When one, the use of hydrogen gas as the working gas
1. Turn on the hydrogen gas line, for each joint with soapy water leak detection, confirmation does not leak.
2. Make sure that the valves are closed.
3. Rotate the knob to open a bottle of hydrogen gas main valve knob clockwise, slowly open the outlet valve, the outlet pressure at 0.1MPa.
4. Turn the mechanical pump power, open the two valves tube furnace outlet valve and mechanical pump gas on the road, pumping five minutes.
5. Close the two valves mechanical pump gas on the road, closed tube furnace outlet valve, close the mechanical pump.
6. counter clockwise to open the pneumatic control valve, so that the arrow points to the "on" position.
7. meter adjustment knob counter clockwise, so that shows the number 20ml / min.
8. Turn the knob counterclockwise to open the inlet valve tube furnace until the pressure gauge reads zero.
9. Open the tube furnace inlet valve, outlet valve open red hydrogen gas on the road. 10. After the hydrogen through full ten minutes, you can start heating tube furnace. Before heating, the flow meter adjusting knob counterclockwise, so that the speed Erlenmeyer flask bubbles appear is 2 / sec.
When Ⅱ. Using an inert gas as the working gas
1. Turn on the working gas manifold, the outlet end of the tube furnace connected to a mechanical pump gas.
2. Open the tube furnace inlet valve, close the pump power, open the valve (note keeping guard flange, tube avoid excessive force), taking the alumina tube and a gas pipeline.
3. When the tube furnace vacuum gauge to -0.1 (the pointer to the end), close the valve and closing the intake valve.
4. Turn the knob counterclockwise to open the main cylinder valve knob clockwise, slowly open the outlet valve, the outlet pressure at 0.004MPa (2 small cell).
5. Turn the knob counterclockwise, slowly open the tube furnace intake valve; close attention barometer tube furnace, make sure the air pressure in 0.08MPa below (such as air pressure higher than 0.08MPa, open the valve discharge tube furnace gas).
6. barometer tube furnace when the pressure is stable, closed tube furnace inlet valve, open the valve, vacuum to -0.1, the valve off the tube furnace.
7. Repeat steps 4 and 5 twice.
8. Close the mechanical pump, open tube furnace inlet valve.
For more information, please attention Tube furnace Dental furnace Official Website：http://www.lab-furnace.com/
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