Vacuum brazing performance of the unit

Vacuum brazing performance of the unit

Vacuum brazing furnace brazing furnace to maintain excellent soldering quality depends on the performance of the vacuum brazing furnace maple group vacuum brazing furnace pump often need to pay attention to don't think that you never turn it off, it will run forever. "If the vacuum brazing furnace maintenance crew at the time, on weekends and holidays shutdown, more economical to do so. Otherwise, if still idling at the weekend, mechanical pump will be stuck and difficult to start again. Our experiment results show that the average winter set in 28 degrees, set in 26 degrees in summer. With this method can save a lot of electricity. Due to the lack of water or overheating: temperature 140. ~ 150. F the above 60 ~ 66 ℃), easy to cause mechanical pump overheating, and noises. Available portable device on a weekly basis to pump vacuum brazing furnace oil filter, check the oil level and take the sample, check the oil quality by feeling and appearance.
A few years ago, we have found that the mechanical pump use high quality oil is more economic. The cost of high quality oil is generally more than three times of industrial oil, and keep the pump clean time is five times the sustainable. A valve should be replaced every three months and spring. Stainless steel spring longer diffusion pump should be removed once a year, to overhaul, including all the cleaning. After the diffusion pump oil contaminated can't vacuum soldering furnace So should check the quality of the oil level and oil once a week. Best high quality silicon oil, such as SW1 - ZKY or a brand. Practice shows that using this oil can keep the degree of vacuum brazing furnace in 10 ~ l0 3-5 torr range, brazing production quite satisfied. Replace the oil can be recycled, the price about 70 yuan, every kilograms and new oil 220 yuan per kilogram.