Press emax with Dekema press-i-dent

[cooz]

Does anyone have the temps and times for pressing e.Max in the Dekema press-i-dent? I have this fournace and i think is the best,and i don't wont to change it only for pressing emax,thanks to all

[sixonice]

Originally Posted by cooz

Does anyone have the temps and times for pressing e.Max in the Dekema press-i-dent? I have this fournace and i think is the best,and i don't wont to change it only for pressing emax,thanks to all

pressing the e.max in anything other than the Ivoclar press takes a little bit of trial and error. most all other pressing ovens out there and friends that I know that use them, all say increasing the pressing high temp is the place to start. try a base temp of 700C, heat rate of 60C, high temp of 940C, pressing time of 8 minutes, pulling vacuum the entire time.

[cooz]

Thanks but do you (or some other) have the exactly program for the Dekema,cause is fully programmable,and is different from other furnace,thanks

[sixonice]

Originally Posted by cooz

Thanks but do you (or some other) have the exactly program for the Dekema,cause is fully programmable,and is different from other furnace,thanks

there is not an "exact" pressing program for the Dekema oven. the only oven with exact specs is the ivoclar press. that is where your trial & error come into play. i gave you a very good starting point that may get you right on the money. if the pressing come out with rounded, shiny, short margins bump your high temp say, 10 degress celcius. if the pressing come out with heavy reaction layer (but press complete) your running hot (bump high temp down some). bottom line.....your going to have to run a couple pressings through your oven, check your results and make adjustments.

[cooz]

Thank you,i've seen that in the Dekema official site there are all exact program to press emax,just in case some other needs this information,this weeh i'm gonna try

[RBob]

Originally Posted by cooz

Does anyone have the temps and times for pressing e.Max in the Dekema press-i-dent? I have this fournace and i think is the best,and i don't wont to change it only for pressing emax,thanks to all

This is the program I use for a 100g ring:

L9 C700 V9 T060.C924 T1500 L95 T420 L9 V0 C0 L6 T120 T5 T60.L0 C500

[cooz]

Thanks!!!

[cooz]

Sorry,for 200g ring?
You'll never press bridges?
Thanks

[RBob]

Yes, I press bridges. For a 200g ring just raise the press temp by 10 degrees. I find that the lower the press temp the better the surface of the crowns. I've been reducing the press temp by 1 degree each time and it seems to be an improvement. I'll let you know when I reach the lower limit. :-)

[cooz]

Ok,tomorrow i'm gonna try my first emax press,thanks