24
86105 BA-en/00
English ⋅ Nautilus
®
CC plus ⋅ Nautilus
®
T
Bridges
a) A casting cone can be dispensed with.
b) Use an indirect sprue system so the melt
does not flow directly into the object, but
first fills the distribution channel.
c) Reinforce distribution channel for full pon-
tics (the volume of the reinforcement must
correspond at least to the volume of the full
pontics).
d) Dimension the distribution channel gener-
ously and allow it to project to enable sub-
sequent suction of liquid melt.
e) Keep the distance between the object and
the mould bottom and mould wall small (5
mm).
Follow the instructions of the alloy manufacturer
with regard to dimensioning sprue systems and
sprues.
Crowns
a) Prevent the melt from flowing in directly
through sinuous sprue system.
b) Extend the distribution channel beyond the
sprue system of the crown.
c) Keep the distance between the object and
the mould bottom and mould wall small (5
mm).
Follow the instructions of the alloy manufacturer
with regard to dimensioning sprue systems and
sprues.
Casting mould former
Enforcement with full pontics
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