Extrusion 2-2017

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➠ ST Soffiaggio Tecnica s.r.l.
61 Extrusion 2/2017
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PREMIUM PARTNERS:
SOLIDS EUROPEAN SERIESSOLIDS
DORTMUND
10 – 11 May 2017
Messe Westfalenhallen
Trade show for granules, powder &
bulk solids technologies
In parallel with
RECYCLING-TECHNIK Dortmund 2017
further milestone for the company, being the first Aspi Seco
destined for the notoriously fast-growing Indian automotive
industry.
Besides having an important local automotive industry, India
works as a hub for the major foreign manufacturers thanks
to a multiplicity of factors that make investment in India
worthwhile (low production costs, flexibility in the labour
market, abundance of raw materials, high level of personnel
technical qualification, incentives and economic policies,
etc.).
The Aspi series blow moulding machines are supplied in the
Seco configuration when it is necessary to produce parts
with two different materials arranged in sequence. This se-
quential coextrusion utilises a parison that presents, in an al-
ternating manner, different physical-mechanical characteri-
stics. In this way it is possible to obtain manufactured articles
with flexible parts and more rigid sections, thereby avoiding
the time and cost of assembling more components. This
technology also reduces the product cost, compared to a sin-
gle-material solution, because each of the two resins is used
only in those sections where it is needed.
The two new Aspi Seco machines have the same clamping
unit (with maximum opening of 1,400 mm) and identical
plasticization units (two 60 mm extruders), but differ in some
other characteristics: the clamping forces are 15 and 20
tonnes respectively, and the accumulator head capacities are
1.0 and 1.5 litres. A peculiarity of both machines – not com-
mon on this bi-material typology – is the possibility to reach
a process temperature in excess of 350 ° C. This characteris-
tic makes them suitable for processing not only any technical
resin available today for blow moulded engine compartment
parts, but also new plastic materials that could be developed
in the coming years for applications at even higher tempera-
tures: the challenge to metallic materials continues!