Prior to use, the crucible for the heat treatment pit furnace must be cleaned to remove surface oil, rust, slag, and oxides. To prevent...Bain-MarieThe iron in cast iron crucibles dissolves into the alloy, and the crucible should be preheated to 150-200°C. Apply a coat of paint on the working surface, then heat it to 2000-300°C to completely remove moisture from the paint.

Daily Motto: You can, you should, if you dare, you will.