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Built-in Mould
Thermal Management
Manufacturing News Center
'The ST Mould'
Photo courtesy
of AXXICON Mould Technology
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Biel, Switzerland and Helmond, the Netherlands-- Jobwerx News
-- Building on its successful new generation S-Mould, AXXICON
Moulds has introduced a mould for the efficient production of the DVD-R
format: the STDR© Mould, capable of perfectly replicating the highly
complex DVD-R structure with its microscopic and relatively deep grooves
at fast cycle times. Built-in thermal management enables the mould to
operate at high temperatures to ensure uniform replication of grooves.
The advanced new STDR Mould is now operational at a number of locations
in the world and achieving a uniform replication greater than 98% at
cycle times of around 5 seconds.
Mechanical aspects of the STDR Mould ensure overall stability and reliability.
Technologically advanced features include controlled movement of the
pneumatic venting ring, which compensates automatically for variations
in stamper thickness, a completely new nozzle design to ensure an undisturbed
flow of the polycarbonate and an extended life span. Advanced geometric
cutting technologies and an optimised cooling capacity of the cutting
bush and other parts contribute to the thermal stability of the mould.
The improved sprue design ensures high uptime.
In addition to these features, the STDR Mould comes complete with a
mechanical ejector sleeve to further deliver productivity. A proprietary
mold guiding system ensures that the two halves of the mold are always
perfectly centred during the entire molding process. Together these
systems also contribute to a widening of the processing window as well
as overall disc quality.
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