Work done in the Extruder Processing Zone of a co-rotating twin-screw extruder plastic recycling extruder machine results in the desired quality of compounded materials and outcome level. The Extruder Processing Zone (EPZ) is the heart of a Co-rotating Twin-Screw Extruder that helps to achieve the required performance.
In the EPZ, several actions are carried out on the material as it performs its way through the extruder and exits from the die. With respect to the character of work being completed, these zones are known as Intake, Melting, Atmospheric Venting, Mixing, Vacuum Metering and Venting. Proper configuration with a good choice of barrels and elements optimizes the performance of every zone. Solids conveying in Intake, Softening of Polymer in Melting, Degassing in Venting, Distribution and dispersion associated with Kneading actions in Mixing, Discharge control in Metering will be the functions of the many zones.
Conveying screws, Kneading Blocks and various other Mixing Elements are the working associates in each zone. Producing the right selection among numerous factors and configuring them in the right order needs knowledge of the functional attributes of each element. This article attempts to throw additional light in understanding the zones and attributes of elements.
Configuration of Screw Elements in EPZ
The adage diverse strokes for unique folks holds good when one attempts to cope with the EPZ (Extruder Processing Zones) of a Co-rotating Twin-Screw Extruder. In this EPZ location the key to accomplishment lies with the precise design of the Element and Barrel Configuration. In the overall game of Chess, a very good formation is essential to achieve an absolute result, since parts in isolation cannot perform. This is true in the case of Compounding also. Elements work ideal in some combinations, plus some elements are more strong than others. Certainly, it really is true! Importantly,
1. The design must deliver the right amount of work on the product for mixing and melting.
2. The design should have the capability to take the product in and out of the extruder.
3. Lastly, the design should allow volatiles or gases to flee without the product leaking out through Vents.
It can be imagined there are different zones (area) inside the extruder performing a number of specific functions. Like a relay competition, each area passes on the baton (the materials being processed) to another zone and before final stage. Extruder functionality measured by energy consumption, quantity and top quality of output, largely depends on the design of the processing zones. The effective collection of factors is the first step in design. The proper combination and amount of elements is the next step. We will go over these various zones and outline the aspect characteristics, its potential use and certain design principles
In the EPZ, several actions are carried out on the material as it performs its way through the extruder and exits from the die. With respect to the character of work being completed, these zones are known as Intake, Melting, Atmospheric Venting, Mixing, Vacuum Metering and Venting. Proper configuration with a good choice of barrels and elements optimizes the performance of every zone. Solids conveying in Intake, Softening of Polymer in Melting, Degassing in Venting, Distribution and dispersion associated with Kneading actions in Mixing, Discharge control in Metering will be the functions of the many zones.
Conveying screws, Kneading Blocks and various other Mixing Elements are the working associates in each zone. Producing the right selection among numerous factors and configuring them in the right order needs knowledge of the functional attributes of each element. This article attempts to throw additional light in understanding the zones and attributes of elements.
Configuration of Screw Elements in EPZ
The adage diverse strokes for unique folks holds good when one attempts to cope with the EPZ (Extruder Processing Zones) of a Co-rotating Twin-Screw Extruder. In this EPZ location the key to accomplishment lies with the precise design of the Element and Barrel Configuration. In the overall game of Chess, a very good formation is essential to achieve an absolute result, since parts in isolation cannot perform. This is true in the case of Compounding also. Elements work ideal in some combinations, plus some elements are more strong than others. Certainly, it really is true! Importantly,
1. The design must deliver the right amount of work on the product for mixing and melting.
2. The design should have the capability to take the product in and out of the extruder.
3. Lastly, the design should allow volatiles or gases to flee without the product leaking out through Vents.
It can be imagined there are different zones (area) inside the extruder performing a number of specific functions. Like a relay competition, each area passes on the baton (the materials being processed) to another zone and before final stage. Extruder functionality measured by energy consumption, quantity and top quality of output, largely depends on the design of the processing zones. The effective collection of factors is the first step in design. The proper combination and amount of elements is the next step. We will go over these various zones and outline the aspect characteristics, its potential use and certain design principles