Page 45 - Plastics News August 2021
P. 45
PRoDUCT NEwS
DREYPLAS To Showcase Innovative Oerlikon HRS Flow
Application At FAKUMA Has Developed A
Innovative Mechanical
Stroke Regulator
erlikon HRSflow has developed
Oa Mechanical Stroke Regulator
(MSR) for hydraulic driven valve gate
systems that makes it easy to individually
preset the opening positions of the pins
in hot runner systems. Via a graduate
scale adjusting screw the user specifies
the individual oil volume, which the
valve gate system then uses to bring
the needles into the intended positions.
In this way, the pressure drop for each
lastics distributor DREYPLAS will the reduced molecular weight, Lubmer
Pshowcase innovative application offers, with smooth friction partners nozzle can be set independently, and
possibilities for the ultra-high-molecular- such as steel,equally good tribological the pressure distribution during the
weight polyethylene (UHMWPE) properties as components made of a packaging phase can be controlled.
LUBMER™ from Mitsui Chemicals sintered semi-finished product. This and OerlikonHRSflow supplies its new
at Fakuma this year. Compared with its recyclability in the polyolefin stream MSR ready-to-install on all of the
conventional sintered semi-finished make it in many applications a sustainable company's existing hydraulic cylinder
products, this offers possibilities alternative to engineering plastics such series equipped with electrovalves.
for considerable cost savings in the PPS, POM, PA or PBT. Lubmercan Installation can be limited to individual
production of moulded parts and be used in applications at long-term
profiles that also boast excellent surface temperatures down to –200°C,and its
slip properties. This advantage comes chemical resistance, heat resistance and
from the thermoplastic processability (low-temperature) impact strength are
by injection moulding and extrusion. In the same as those of UHMWPE semi-
this way, it is no problem with Lubmerto finished products. It complies with all the
produce parts with narrow tolerances REACH regulations and is approved to
and very low depths of roughness. As FDA and EU10/2011 for food-contact
a result, the amount of time required applications.Alongside the basic types,
is significantly reduced, and the large namely Lubmer L3000 with the highest
quantities of costly, non-reusable flowability, L4000, and L5000, which is nozzles of a system to save costs. It
production scrap from the machining also suitable for extrusion and has the only takes around 10 minutes and can
of semi-finished products are no longer highest abrasion resistance, DREYPLAS be done without dismantling the mold.
produced. In current sampling trials at also markets the higher temperature- Modifications to the existing hot runner
customers, Lubmerhas also proved that resistant Alloy LS4140, which, thanks to cutout are not required. Combined
the product is suitable for 3D printing. its polyamide modification, combines with OerlikonHRSflow'sFLEXspeed
The difference between the various elevated temperature resistance with system, the speed of the pin can also
UHMWPE types lies in the length of good flow properties. Lubmer can be
the molecule chains. With conventional used both with hot runner systems and be adjusted. First users unanimously
types, they are so long that they cannot with traditional tunnel gates. The light confirm the very good suitability of the
be melted but have to be sintered into and opaque intrinsic colour facilitates the new MSR for balancing the melt flow
the semi-finished products. Despite use of colour masterbatches. in cascade molding and thus avoiding
surface defects by simple means.
44 PLASTICS NEWS AUGUST 2021 45 PLASTICS NEWS AUGUST 2021