PMMA Acrylic pipe extruder professional production of acrylic extruder
Product Description
Plastic extruder is an important mechanical equipment in plastic processing industry.
It is mainly composed of a feeding device, a screw, a barrel, a head and a die. When working, the plastic raw materials are added from the feeding port, and under the rotation of the screw, the plastic is gradually heated, melted and mixed evenly in the barrel, and then extruded into plastic products with a specific shape through the head and mouth die, such as pipes, plates, films, cable sheathing and so on.
Plastic extruder has the advantages of high production efficiency, continuous production, product size stability, etc., has a wide range of applications in the field of plastic processing, and has played an important role in promoting the development of the plastics industry.
Plastic extruder is a very critical equipment in plastic processing.
The main structure of the plastic extruder includes:
• Drive device: provides power for the rotation of the screw.
• Feeding device: used to add plastic raw materials.
• Cartridge: holds plastic and heats it.
• Screw: conveying, compressing, plasticizing, etc.
• Head and die: give plastic products a specific shape.
The working principle is to drive the screw to rotate through the driving device, so that the plastic raw materials are gradually melted and plasticized in the barrel, and continue to pass the head and mouth die under the push of the screw, and finally extrusion molding into the required plastic products.
Plastic extruder has the following characteristics and advantages:
• High production efficiency: continuous production can be achieved.
• Strong adaptability: can process a variety of plastic materials.
• Stable product quality: ensure the consistency of product size and performance.
PMMA acrylic extruder technology is mature, the product transparency is high, the surface scratch is less. The PMMA products that can be made are:
First, PMMA pipe extruder, production capacity: 10--110MM high transparent PMMA pipe
Second, PMMA bar extruder, production capacity: 2-110mm PMMA rod, bubble rod, stripe rod
Third, PMMA profile extruder, production capacity: according to the size of the product, customize the corresponding equipment
Equipment features and advantages:
1, with mature PMMA extrusion process, experienced debugging team;
2, the main screw adopts acrylic special screw barrel, reasonable structure, good plasticization, excellent workmanship
3, electrical appliances and main components using well-known brand products, to provide a strong guarantee for the long-term stable operation of equipment
The difference between plastic twin screw extruder and plastic single screw extruder is mainly reflected in the following two aspects:
How materials are transported
In a single screw extruder, friction drag is used in the solid conveying section and viscous drag is used in the melt conveying section. The frictional properties of solid materials and the viscosity of molten materials determine the conveying behavior. If some materials have poor friction performance, if the feeding problem is not solved, it is more difficult to feed the material into the single screw extruder. In twin-screw extruders, especially meshing twin-screw extruders, the transfer of materials is to some extent a positive displacement transfer, and the degree of positive displacement depends on the proximity of the screw edge of one screw to the relative screw groove of another screw. The geometry of the screw of the tightly engaged cross-rotating extruder can obtain high forward displacement transport characteristics.
Flow velocity field of material
At present, the flow velocity distribution of the material in a single screw extruder has been described quite clearly, but the flow velocity distribution of the material in a twin screw extruder is quite complicated and difficult to describe. Many researchers just do not consider the material flow in the meshing zone to analyze the material flow velocity field, but these analysis results are very different from the actual situation. Because the mixing characteristics and the overall behavior of the twin-screw extruder mainly depend on the leakage flow in the meshing zone, the flow situation in the meshing zone is quite complex. The complex flow spectrum of the material in the twin screw extruder shows the advantages that the single screw extruder can not compete in the macro, such as sufficient mixing, good heat transfer, large melting capacity, strong exhaust capacity and good temperature control of the material.
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