Sintering programs, Multimat2Sinter / heat DUO / Sirona HTC-speed sintering furnace:
Speed sintering of bridge frameworks with up to 6 units ( Cercon® base / Cercon® ht)
and bridge frameworks up to 3 units ( Cercon® xt)
Heating rate
Temperature
Step
°C / min
S4
120
S3
7
S2
14
S1
23
Cercon® base, Cercon® ht and Cercon® xt standard sintering:
Heating rate
Temperature
Step
°C / min
S4
25
S3
120
S2
11
S1
22
Cercon® base, Cercon® ht sintering of bridge frameworks with 9 or more units:
Heating rate
Temperature
Step
°C / min
S4
120
S3
10
S2
2
S1
7
Sintering temperatures are recommendations. If necessary, carry out a trial
sintering cycle and adapt the sintering temperatures or times as needed.
Separating the sintering reinforcement in the case of large-span bridges:
Objects are separated from the "tongue" after sintering using irrigated rotary diamond cutters
Manual finishing after sintering:
• Sandblast the inside and outside of the framework with aluminium oxide
(110 – 125 μm, max 2 – 3 bar, 45 ° angle)
• Eliminate premature contacts one by one until the framework has reached its final position on the die(s)
• During the try-on and fitting of the framework, keep the dies on the cast and try on the framework
as a whole
• Once the try-on and fitting has been completed, do not perform any additional adjustments such as
finishing the entire framework
Holding time
°C
min
750
0
1520
35
1350
0
1100
0
Holding time
°C
min
0
0
300
0
1500
135
880
0
Holding time
°C
min
200
0
900
0
1500
135
860
10
7