Extrusion Screw
View system integration details
Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Metering Section used in the Rubber and Plastic Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.
A canonical Metering Section is characterized by the integration of Flight and Root. In industrial production environments, manufacturers listed on CNFX commonly emphasize Tool Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.
The final section of an extrusion screw where molten material is precisely metered and pumped at constant pressure through the die.
Technical details and manufacturing context for Metering Section
Commonly used trade names and technical identifiers for Metering Section.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 70 MPa (10,000 psi) typical, 100 MPa (14,500 psi) maximum |
| flow rate: | 10-10,000 kg/hr (screw diameter dependent) |
| temperature: | 150-350°C (depending on polymer type) |
| slurry concentration: | Not applicable - designed for molten polymers, not slurries |
Manufacturer profiles with relevant production capability in China
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The metering section precisely meters molten material and pumps it at constant pressure through the extrusion die, ensuring consistent product dimensions and quality in rubber and plastic manufacturing.
Bimetallic alloys and nitrided steel offer superior wear resistance for abrasive materials, while tool steel provides durability for general applications, and stainless steel is preferred for corrosive environments.
Flight land width and clearance directly impact pumping efficiency, pressure stability, and melt temperature control. Proper dimensions minimize leakage backflow and ensure consistent throughput to the die.
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