Pre-expansion: The process begins with the pre-expansion of EPS
beads. The beads are fed into a pre-expander, where they are
exposed to steam and heat.
Variable volume barrel inherits the foam- ing precision of the
small barrel and also has the characteristics of high efficiency of
the large barrel. The raw materials can be turned 360° in the
barrel and heated evenly. The uniformity of the foam partic- les is
also very good.
The feeding and discharging speed of the conical barrel is very
fast. The feeding speed is increased by 50%, and the dis- charging
efficiency is increased by 65%.
Variable volume barrel optimizes the EPS pre-expansion mechanism
and heating process, and has the characteristics of high efficiency
and high output. The amount of steam required to prepare one ton of
materials can be saved by 20%.
lt pre-expands black suspended graphite materials through a special
heating process, which has a higher expansion ratio than
conventional pre-expanders.
Main features:
The machine adopts Mitsubishi PLC and Taiwan HMI with atuo to
filling material,auto electronic weighint,auto controlling chamber
temperature , pressure and level testing to
Steam system:Steam pressure reducer and angle valve to contorl steam.
Fillng system:Adopts electronic weighing system ,setting filling weight to HMI
for material filling automatically .
Material level control:Adopts laser sensor to control the expansion level.
Electronic control: Mitsubishi PLC and Taiwan HMI,chneider components
