Stainless tightness

How to maintain the purity of the protective gas furnace is a key issue. In this regard, stainless steel magnetic sealing, and it will not happen as electric furnace material contamination protective atmosphere, providing a more pristine environment of space. Additionally, vertical furnace strip entrance are located lowermost portion of the furnace, the furnace pressure is stable, as compared with a horizontal furnace, air enters the danger is much smaller. However Importers sealed box furnace for bright annealing, the strip conveying section, the dancer roller and the guide roller roof box should ensure a few parts per million (ppM level) sealing requirements, so that oxygen, water vapor can not enter the shielding gas can not escape.
Vertical bright annealing furnace construction should pay attention to issues related to
In the long-term high temperature will creep elongation. Structurally the muffle cover hanging on the roof, in a suspended state, cover the lower part of the water ring seal, not fixed, allowing a certain amount of creep. Creep accumulated to a certain amount, remove seal, with a special plasma cutter to cut away along the lower section of the hood muffle. About half cut once. Cutting operating requirements are relatively high. Its special equipment, operating space and structure, operational reliability should pay full attention.