EST
1980
1104 north scenic drive
payson, arizona 85541
tm
Copyright 2006-2011 - SRG Plastics - All Rights Reserved
C
knowledge of various plastic materials and their unique characteristics.
Once the dies are completed it’s time to perform a die test. This involves attach-
materials require that the extrusion travel through chilled water, some materials
can be cooled by air alone and some require a combination of both. In many
cases the extrusion, once leaving the die, must then enter a vacuum chamber
or sizer, in order to maintain the intended shape. At this time the plastic resin
must be loaded into the extruder and brought to a specified temperature before
the process begins. The set up procedure can take hours.
Now the extrusion process begins, which entails adjusting extruder temperatures,
setting desirable line speeds and applying appropriate vacuum to calibrators. This
stage can take several hours before an acceptable part is achieved. In many
cases the dies need to be adjusted and sometimes new dies must be made.
If adjustments are necessary, the die testing procedure has to be performed again.
When the extrusion meets the print requirements, the die testing phase is finished
and the part is submitted to our customer for approval. Now that we have the
data to extrude a part that meets the print, we can set up and run production orders.
Under normal conditions the development phase can take four weeks. It is important
that the customer leave ample time to develop the profile extrusion. Once the part has
been developed, turn around time for production and subsequent orders is quick.
For a definition of some common plastic terms see plastic terms
Understanding dimension tolerances see standard tolerance chart
Once the dies are completed it’s time to perform a die test. This involves attach-
materials require that the extrusion travel through chilled water, some materials
can be cooled by air alone and some require a combination of both. In many
cases the extrusion, once leaving the die, must then enter a vacuum chamber
or sizer, in order to maintain the intended shape. At this time the plastic resin
must be loaded into the extruder and brought to a specified temperature before
the process begins. The set up procedure can take hours.
Now the extrusion process begins, which entails adjusting extruder temperatures,
setting desirable line speeds and applying appropriate vacuum to calibrators. This
stage can take several hours before an acceptable part is achieved. In many
cases the dies need to be adjusted and sometimes new dies must be made.
If adjustments are necessary, the die testing procedure has to be performed again.
When the extrusion meets the print requirements, the die testing phase is finished
and the part is submitted to our customer for approval. Now that we have the
data to extrude a part that meets the print, we can set up and run production orders.
Under normal conditions the development phase can take four weeks. It is important
that the customer leave ample time to develop the profile extrusion. Once the part has
been developed, turn around time for production and subsequent orders is quick.
For a definition of some common plastic terms see plastic terms
Understanding dimension tolerances see standard tolerance chart
The plastic extrusions process begins with an accurate
part drawing defining all dimensions and critical
tolerances. Material selection is important as different
materials require different die design and after-forming
equipment. For instance, designing dies for acrylic
will not work for extruding polyethylene and so on. Die
design and manufacturing of dies requires qualified and
experienced toolmakers who possess a comprehensive
part drawing defining all dimensions and critical
tolerances. Material selection is important as different
materials require different die design and after-
will not work for extruding polyethylene and so on. Die
design and manufacturing of dies requires qualified and
experienced toolmakers who possess a comprehensive
profile extrusion production
Plastic profile extrusion produces a thermoplastic
part that has a continuous cross-section, such as
a tube or channel. Using heat (350 to 600 degrees)
and pressure, the part is pulled at a specified line
speed through a machined set of dies, that match
the part profile. The extrusion is then cut inline
or taken offline for secondary precision cutting.
part that has a continuous cross-
and pressure, the part is pulled at a specified line
speed through a machined set of dies, that match
the part profile. The extrusion is then cut inline
or taken offline for secondary precision cutting.
The physical properties of extruded plastics range from very stiff and rigid to soft
and flexible. Plastic extrusions can be enhanced to increase impact strength,
resist ultra-violet, perform in cold weather and withstand many harsh chemicals.
In a process called co-extrusion , two different colors or two different durometers
(flexible and rigid) can be combined…..good for hinged parts. In some cases we
can combine different materials, such as acrylic and abs. Even a tri-extrusion
(three different colors or durometers) is possible. Click on types of extrusions
Some of our extrusion capabilities include…..
- wall thickness from .010 to .375 / up to 22” in cross-section
- offer a wide range of materials including engineering grades
- surface finishes include gloss, semi-gloss, matte and texturing
- decorative finishes include foils, in gold, silver, chrome, colors and wood grain
- all types of pressure sensitive tapes can be applied
- parts cut as small as 1/4” in length with precision cutting
and flexible. Plastic extrusions can be enhanced to increase impact strength,
resist ultra-
(flexible and rigid) can be combined…..good for hinged parts. In some cases we
can combine different materials, such as acrylic and abs. Even a tri-
(three different colors or durometers) is possible. Click on types of extrusions
Some of our extrusion capabilities include…..
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