High temperature vacuum furnace is the use of vacuum system (carefully assembled by vacuum pump, vacuum measuring device, vacuum valve and other components) in the specific space of the furnace cavity to discharge part of the substances in the furnace cavity, so that the pressure in the furnace cavity is less than a standard atmospheric pressure, and the space in the furnace cavity realizes the vacuum state, which is the high temperature vacuum tube furnace.

　　Industrial furnaces and experimental furnaces heated by electric heating elements in a near-vacuum state. Equipment for heating in a vacuum environment. In a furnace chamber sealed by a metal housing or quartz glass cover, it is connected to the high vacuum pump system by pipes. The vacuum degree of the furnace can reach 133×(10-2~10-4)Pa.

The furnace heating system can be directly heated with silicon carbon rod or silicon molybdenum rod, or it can be heated by high-frequency induction heating. The maximum temperature can reach about 2000°C.

It is mainly used for ceramic firing, vacuum smelting, degassing of electric vacuum parts, annealing, brazing of metal parts, and ceramic and metal sealing.

　　How to clean the high temperature vacuum furnace equipment? ——Next, Wolfou Xiaowo will give you a piece:

Step 1: The furnace tank is cleaned once a week during continuous production, and the cleaning of the intermittent production furnace tank should be carried out immediately after the furnace is stopped.

Step 2: When the cleaning temperature of the furnace tank is 850~870 °C, the chassis ** should be taken out.

Step 3: When blowing in from the feeding end of the high-temperature vacuum furnace furnace with a compressed air nozzle, the valve should not be opened too large, and it must be moved back and forth to prevent local overheating.

Step 4: Inspection of the overtemperature protection device in the laboratory.

Step 5: Remove the dust test chamber condenser, the condenser should be regularly maintained every month, use vacuum cooling to cool the dust attached to the dust inhalation clean condenser net or use high-pressure air spray dust.

Step 6: Cleaning and maintenance of the external cabinet of the laboratory.

Step 7: Clean the gas burner once with kerosene before carburizing.

Step 8: After the chassis or fixture is quenched, it should return to the pre-cooling chamber to remove the oil stain.

Step 9: If the exhaust gas pipe is found to be blocked (sudden pressure increase in the furnace), it should be cleaned up immediately. First open the exhaust gas valve that does not pass the water seal, and then close the waste gas pipe valve that is the water seal. After cleaning, the exhaust gas valve with water seal should be opened first, and then the waste gas valve without water seal should be closed.

(1) The impurity laboratory in action should be relocated before the relocation.

(2) The power distribution room is cleaned more than once a year, cleaning, vacuum cleaner, can be used for indoor dust, can be inhaled.

(3) The external fuel tank* must be cleaned once and can be cleaned for a year or more and can be washed with soap and water.