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Maintenance rules for vacuum brazing furnace
Autor: meishengchao (180.155.246.---)
Datum: 10 October, 2018 09:47

Vacuum brazing furnace needs good maintenance and maintenance in use, then how to do a good job of daily maintenance? Today Weifang vacuum furnace manufacturer sent gold to take us to understand.
(1) operators should understand various parts of appearance, pump and equipment. Read and understand various manuals.
(2) the water pressure of cooling water should be between 0.1 and 0.2 Mpa, and the effluent temperature is less than 45 degrees Celsius.
(3) compressed air pressure ranges from 0.4 to 0.5 Mpa.
(4) before starting the boiler, we should check the cylinder capacity of the maintenance gas, avoid the lack of gas filling, and replace the gas cylinder.
(5) if there is any abnormal condition after starting, the reason should be immediately removed or stopped.
(6) often check the backwater volume of each part. Ensure that each part has enough cooling water during operation.
(7) When the equipment stops operating, the gas in the furnace should be pumped out of time, which is unnecessary for a long time. Maintenance gas should be filled and the circulating water in the water-cooled jacket of the equipment should be discharged.
(8) mechanical pumps and Roots pumps should be refueling regularly, and the oil cups of Roots pumps should always be oil. Oil must be cleaned when changing oil.
(9) If there is oxidation in the interior of the dispersed pump, the oxide layer inside the dispersed pump should be cleaned and then replaced with new oil.
(10) the purity of the charged maintenance gas should not be less than 99.99%.
(11) this equipment does not permit the use of flammable, explosive and corrosive gases as a maintenance atmosphere.
(12) The appearance and appearance of the equipment shall be kept clean, and the inner wall of the scrubbing furnace shall not be allowed to be scrubbed with a dishcloth containing water and non-vacuum oil.
(13) The oil-water separator on the pneumatic three-piece of the pneumatic system should always discharge water, and the vacuum dispersing pump oil should be written into the oil mist separator.
(14) the whole machine voltage should be within 350~420 V. Three phase to balance.
(15) Regulators, electrical contact pressure gauges, thermocouples and other places to be often coated with dispersed pump oil, so that between the seat and form a layer of oil film to avoid leakage. The above parts and flange connections are not allowed to be sealed with vacuum seals for long time.


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