The vacuum brazing furnace maintenance conditions
Vacuum brazing furnace used in need of good maintenance and maintenance, so how to do daily maintenance work? Today with everyone together to look at.
(1) the operator to understand all sorts of appearance, pump, all the parts of the equipment. Read and understand all kinds of specifications.
(2) the cooling water pressure should be between 0.1 ~ 0.2 Mpa, the water temperature is 45 ℃ or less.
(3) compressed air pressure is between 0.4 ~ 0.5 Mpa.
(4) before starting each furnace, to see the maintenance of gas cylinder capacity, to avoid the lack of gas filling, change of gas cylinders.
(5) after startup if any abnormal situation, should immediately remove or stop to find the reason.
(6) often see the back of each part of water, shall ensure that the parts have enough cooling water when working.
(7) when they stop using vacuum furnace equipment should be in furnace gas evacuation, don’t have to for a long time, to fill the gas maintenance, equipment in the water jacket of circulating water and put out.
(8) mechanical pump, roots pump should be regularly in oil gas, roots pump oil cup to have oil. When an oil change is bound to put the waste oil clean.
(9) pump oil change, internal oxidation, if any, to the dispersed pump internal oxidation layer disposal clean, then put on the new oil.
(10) the maintenance of filling the gas, the purity should not be less than 99.99%.
(11) of this equipment is not allowed to use flammable and corrosive gases as maintain atmosphere.
(12) equipment looks and appearance they stick to clean, scrub with water and furnace wall are not allowed to have with the vacuum type oil rag scrub.
(13) pneumatic system of pneumatic even three pieces of the oil-water separator to often water, oil mist device should be written to the scattered vacuum pump oil.
The machine voltage (14) equipment to ensure that in the range of 350 ~ 420 V. Three phase equilibrium.
(15) gauge, electric contact pressure gauge, the place such as thermocouple is often coated with scattered oil pump, to that of the bridge between form a layer of oil film, avoid air leakage. The above parts and flange joints are not allowed to use vacuum cement seal for a long time.