Basic knowledge of experimental resistance furnace

1. nitrogen should not be used as cooling gas when titanium alloy is treated in experimental electric furnace, because titanium and nitrogen react at high temperature to form golden titanium nitride.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

2. all the movable connection parts of the experimental electric furnace are sealed with O-shaped rubber rings, and this part is cooled with water.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

3. when the workpiece is quenched in vacuum, vacuum quenching oil with low saturated vapor pressure shall be used.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

4. the maintenance of the experimental electric furnace should be in the vacuum or pure nitrogen state to avoid inhaling air and moisture when not in use.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

5. the pressure rise rate of domestic experimental electric furnace shall not be greater than 1.33pa/h, and the standard of some foreign enterprises is 0.67pa/h2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

6. vacuum heating is dominated by radiation, and the distance between workpieces in the furnace shall be maintained.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

7. during the heating process, the workpiece and materials in the furnace will be vented, which will reduce the vacuum degree.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

8. the heating temperature of vacuum tempering, vacuum annealing, vacuum solution treatment and vacuum aging is generally the same as that of conventional treatment.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

9. the vacuum furnace shall be equipped with quick cooling device. The pressure of cooling water shall be greater than 0.2MPa and the flow shall be adjustable.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

10. cooling gas: 99.995% nitrogen is generally used for steel, 99.999% nitrogen or argon is used for high-temperature alloy, and 99.995% argon is used for titanium alloy.2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac

11. temperature rise: after the workpiece is put in, the temperature can be raised and heated only when it is pre pumped to 6.67pa2k2Muffle Furnace,Tube Furnace,Vacuum Furnace,Atmosphere Furnac