Friends I am repeating a previous request for help message which
seems not to have any takers. Hope some one out there will catch
on this time and interact to help out with suggestions or leads.
I am attempting to roll my own sterling sheets. I am using a
continously cast billet.Could someone please advise me on some of
1.The surface of my billet is dark in color from the casting (
Not oxidized I think as adequate precaution with inert atmosphere
provided while casting ).Will I need to clean the surface of this
color before rolling? If yes which is the best possibility.
2.I am annealing on a belt furnace with a craked ammonia
atmosphere.Annealing to be done after what factor of reduction?
3.Any recommended formulae for calculation of belt speed ie to
have correct time through the heating zone.
4.The lenght of my cooling zone is twice the heating zone and
provided with a water jacket.Will the sheet emerge hot?
5.Which is the minimum temperature which will ensure that the
sheet does not oxidize on emerging from the furnace?
6.Do I need to pickle between rollings or at the end of rolling.
7.Will the surface emerge bright and shiny after the final
annealing or is the shine due to the last rolling operation or is
any other operation recommended to get the bright lustre of the
finally rolled sheet?
Replies to any or all will help. Any one with experiance who
could share their protocal for rolling???Will make my day.