The spin casting technology basically need a
vulcanized mold to be placed into spin casting machine
and also the silicone rubber as the material of the
mold. The spin casting machine has been constructed in
UAJY in 2007, but it did not use the cured silicon
rubber already. It was applied to RTV silicone rubber.
The experimental works showed that using uncured
silicone rubber in spin casting tend to produce
inappropriate shape of products because of its
elasticity. Hence it brings to the need of constructing
vulcanizer for spin casting technology, by selecting the
appropriate type of silicone rubber to be vulcanized.
The design of vulcanizer machine is conducted using
Rational Method and tree diagram. The tree diagram is
used to identify the objectives needed in vulcanizer
itself, and then the rational method is used to set the
technical requirement of good vulcanizer and also to
choose the best material alternatives based on the
objectives.
By the end of the research, a vulcanizer machine is
obtained 4000 watt of power supply and dimension of 500
mm x 445 mm x 811 mm. It also can produce maximum heat
400