The vacuum annealing furnace design contains the furnace body, which includes the furnace shell, door, electrode, and other components, excluding the vacuum system, electrical system, and heating system. Therefore, the design and manufacture of the vacuum annealing furnace body must fully meet the following parameters: the empty vacuum annealing furnace must restore the vacuum time, and the vacuum and other final data from the equipment and the vacuum system and other related ancillary equipment must be decided together.
https://www.zhonghangjiayue.com/products/annealing-furnace.html