An ingot rotating distributor, wheel shaped is currently made in DI (sg )ferritic iron but it is corroded by liquid zinc supposed to be transferred to ingot molds. Any suggestion for a different cast iron or alternative material? Thanks
Julio
A very expensive alloy named W24879 (48-50%Ni, 27-30%Cr, 1,5%Mn 4-5%W, 3%Co, 0,5-2%Si and 0,35-0,40%C)very close to that suggested by arunmrao used to last 2 years but lastly it fails after 6 months. Reasons appears a combined corrosion+wear phenomenum (noticeable presence of MnS close to the...
All the shovels have the same shape. Cast iron could be a cheaper choice but considering the temperature of operation and the presence of corrosive gases containing no doubt SO2, I doubt such material can withstand too long.
Julio
Cooling appear a hard task to implement since the furnace rotates continuously althought at low speeds. Furnace is 100 m (330 ft) long and shovels are distributed along 5 even spaced lines.
Thanks again!
Julio
Fixed shovels attacched to the wall in rotary furnaces with operating temperatures around 1.200°C (2,200°F)where expanded clay balls are produced. They must resist also to abrasion. Which alloy (possibly not from NASA applications) could be adequate?
Thanky you
Julio
