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We use Vac Aero furnaces with 6 bar quench to process tool steel and high speed steel.
In the past week, both furnaces have been unable to reach the starting vacuum or loose vacuum during heat treating.
I do have a leak detector and have been using it. Not finding any significant leaks when the furnace is cold.
I am looking for someone who can give us some hands on insight on what is going on. I have been overseeing these 2 furnaces for the past 7 years.
