High Precision Machining Customized Single Extruder Screw Barrels
Plastic Machine Screw And Barrel For PP / PE
1 . Descriptions
Plastic extrusion is a manufacturing process that involves melting
and shaping plastic materials into a continuous profile or shape
using an extruder machine. The plastic materials are fed into the
extruder through a hopper and then melted by a heating element,
which is typically a single screw or a twin screw.
There are various types of plastic materials used in plastic
extrusion, including PE (polyethylene), PS (polystyrene), PC
(polycarbonate), ABS (acrylonitrile butadiene styrene), PET
(polyethylene terephthalate), PP (polypropylene), and PVC
(polyvinyl chloride).
The type of plastic extruder machine used in the manufacturing
process depends on the type of plastic material being processed and
the desired end-product. For example, a single screw barrel
extruder is typically used for processing materials such as PE, PS,
PC, ABS, PET, and PP, while a conical twin screw barrel extruder or
parallel twin screw barrel extruder is used for processing PVC.
There are many manufacturers of plastic extruder machines that
produce single screw barrel extruders, conical twin screw barrel
extruders, and parallel twin screw barrel extruders. Some popular
manufacturers include KraussMaffei, Battenfeld-Cincinnati,
Milacron, Toshiba Machine, and Coperion.
2 . Brief Application
The High Precision Machining Customized Single Extruder Screw
Barrels Plastic Machine Screw and Barrel for PP/PE is a type of
extruder screw and barrel that is specifically designed for
processing polypropylene (PP) and polyethylene (PE) plastics. It is
used in plastic extrusion machines to melt and process these
materials into various forms such as sheets, pipes, films, and
other plastic products.
This screw and barrel set is customized to meet the specific
requirements of the plastic extrusion process and is manufactured
with high precision machining techniques to ensure accuracy and
quality. The screw and barrel are typically made from high-grade
alloy steel and undergo special surface treatments such as
nitriding or bimetallic coatings to increase their wear resistance
and durability.
The High Precision Machining Customized Single Extruder Screw
Barrels Plastic Machine Screw and Barrel for PP/PE is designed to
provide high efficiency and productivity in plastic extrusion
applications. It has a high surface area-to-volume ratio, which
allows for efficient heat transfer and melting of the plastic
material. It also has a tight screw pitch and a high screw speed,
which generates high shear forces that are necessary for melting
and processing PP and PE plastics.
Overall, the High Precision Machining Customized Single Extruder
Screw Barrels Plastic Machine Screw and Barrel for PP/PE is a
high-quality and reliable component for plastic extrusion machines
that ensures consistent and efficient processing of PP and PE
plastics.
3 . Features:
The Conical Twin Screw Barrel is a type of extruder screw and
barrel that has several unique features that make it ideal for
processing PVC and other thermoplastic materials. Some of these
features include:
1. Conical design: The Conical Twin Screw Barrel has a tapered or
conical design, which allows for better material mixing and
melting. The geometry of the barrel provides a longer processing
length, which results in improved melting and dispersion of the
plastic material.
2. High shear forces: The Conical Twin Screw Barrel is designed to
generate high shear forces, which are required to melt and process
PVC. The high shear forces are achieved through the use of a tight
screw pitch and a high screw speed.
3. Self-cleaning: The Conical Twin Screw Barrel has a self-cleaning
design that helps to prevent material buildup and reduces the need
for frequent cleaning. The tapered design of the barrel allows for
more efficient material flow and reduces the risk of material
stagnation.
4. Wear-resistant: The Conical Twin Screw Barrel is constructed of
high-quality materials that are wear-resistant and durable. The use
of high-grade alloy steel and special surface treatments such as
nitriding or bimetallic coatings ensures that the barrel has a long
service life.
5. Versatility: The Conical Twin Screw Barrel can be used in a wide
range of plastic extrusion applications, including profile
extrusion, pipe and tubing extrusion, sheet extrusion, and cable
and wire coating. Its versatility makes it a popular choice for
plastic extrusion manufacturers.
Overall, the Conical Twin Screw Barrel's unique design and features
make it an efficient and cost-effective option for processing PVC
and other thermoplastic materials.
4 . Screw&barrel use material
| Raw material | The finished product processing requirements |
| 38CrMoAIA, SACM645 | Nitriding treatment |
| Cr12MoV, Cr12, | Alloy steel |
38CrMoAIA, SACM645, 40Cr, AISI4140,
42CrMo | Alloy steel |
| 4Cr5MoSiV1,SKD-61,SKD-11 | Bimetallic of the inner hole centrifugal casting |
| GHII3 | nature hard after high temperature |
