Multi-layer co-extrusion die with high-end manufacture
The multi-layer technology is mainly divided into two methods: one is feed
With the development of science and
technology, new materials emerging, the application field of plastic
products has been amplified. The single material characteristics of
products have been unable to meet the needs of production, but
multi-layer co-extrusion technology can achieve different functions . It
can manufacture by several different materials with excellent
characteristics, the product has gradually become the new darling, for
example TPU, TPE-TPO packaging material CPP film, optical film and used
in electronic products such as PC-PMMA, the comprehensive performance of
multi-layer composite materials are widely applied in many fields.
Multilayer co-extrusion technology is mainly divided into two forms, one
is the feed block co-extrusion, and the other is the CO extrusion.
Compared with the feed block co-extrusion, the multi layer coextrusion,
has the advantages of high accuracy of the composite uniformity, the
surface layer is particularly thin or the production of the two raw
materials with different processing temperature is particularly
advantageous.
Innovation design, promote the product value
Because of the complex structure of the mold, the design and
production have a lot of difficulties. The processing precision is also
more demanding. We fully follow the physical characteristics of raw
materials, constantly trying to design, made a new breakthrough. For the
production of composite materials with large temperature difference,
using special technology and development, so that the raw material
between the feed inlet through the insulation hole, to reduce the
temperature transfer between different materials, effectively eliminate
the effect of the temperature difference between the materials.
The improved mold multilayer co extrusion die with precise adjustment,
increasing the within block independent for convenient production, a
set of die head can produce a variety of different width of the
products, each composite layer can also set different block lengths,
different cutting edges, can maximum eliminate the phenomenon of
webbing, both to save the waste of raw materials, according to the
special requirements of customers for products, especially for the
frequent adjustment of different materials and different width of the
material production, designers of the PLC control system to achieve
accurate electric block wide adjustment, to avoid losses caused by the
shutdown regulation, with automatic control system using die lip the
opening gap, through the die head bolts for automatic tuning, fast and
effective control of the accuracy of products, make the composite
processing more flexible, save time Lifting efficiency.
The technical advantage of the internal multiple die compound die in the electric inner gear:
Independent internal structure, electric adjustment, suitable for different width of each layer of product production
Independent temperature control system, the realization of multi
material mold temperature difference thermal composite, the maximum
temperature difference between layers 80
Suitable for each layer of the material characteristics of the material
is more complex, the composite proportion of the error reduced to less
than 5%
PLC control system, the width of the inside, to achieve accurate and convenient production
And can be used for PP, PA, EVOH, EVA, PVDF, PVDC, PET and other temperature sensitive polymer.
