Keywords: crucible, Crucible, Cast Iron Crucible, Passivation, Heat Treatment, Crucible Furnace, Melting Furnace, Iron Crucible, Stainless Steel Crucible, Graphite Crucible, Silicon Carbide Crucible, Corundum Crucible,

Maintenance of cast iron crucible

Cast iron crucible is cheap, durable and so on, thus it is widely used in melting furnace, crucible furnace and other furnaces to melt aluminum, lead and other metals.

1. The melting point of cast iron is 1300 degrees.

2, cast iron crucible should be used before the first near line passivation treatment. That is, first wash with dilute HCl, then wipe the crucible with fine sandpaper, then wash it with hot water, then put it into 5% H2SO4 and 1% HN03 mixture, soak it for a few minutes, then wash it with water, then dry it and then burn it in the heat treatment muffle furnace at 300-400 degrees for 10 minutes.

3. The use of cast iron crucible is the same as that of nickel crucible. Because of the cast iron crucible is cheap, when the presence of iron does not affect the analysis of the work, the use of iron crucible is more appropriate.

4. Clean the cast iron crucible with cold dilute HCl can be.

More Maintenance of cast iron crucibles: en.chengchi.net/view-251.html