What is the recommended drying temperature for PEEK material?
Drying at this temperature is not sufficient to remove moisture effectively.
This temperature is optimal for drying PEEK for 4 to 6 hours.
Drying PEEK at this high temperature can damage the material.
This temperature is too low for effective drying of PEEK.
PEEK material should be dried at 150℃ for 4 to 6 hours to efficiently remove moisture without damaging it. Other temperatures either do not adequately dry the material or risk degradation.
What is the recommended mold temperature range for PEEK injection molding?
This range is too low and would lead to poor flow and quality.
This is the optimal range to ensure proper flow and solidification.
Exceeding this range may cause material expansion and defects.
Such low temperatures would prevent proper molding of PEEK.
The optimal mold temperature range for PEEK is between 120℃ and 200℃. This ensures proper flow and solidification, which are critical for achieving high-quality molded parts.
Which screw speed is recommended for processing PEEK?
This speed is too low and may lead to incomplete melting.
This range ensures effective mixing and prevents bubble formation.
Exceeding this speed can lead to material degradation.
This is too slow to ensure proper processing of PEEK.
For processing PEEK, a screw speed of 50-80 RPM is recommended to maintain proper material flow and prevent decomposition or bubble formation.
What happens if the barrel temperature is set too low during PEEK injection molding?
Lower temperatures do not enhance quality; they hinder it.
Low temperatures can cause the material to solidify prematurely, affecting flow.
Lower temperatures typically slow down the molding process.
Insufficient temperature leads to incomplete mold fills.
If the barrel temperature is set too low during PEEK injection molding, it prevents proper material flow, leading to incomplete fills and potentially defective parts.
What is the purpose of holding time in PEEK injection molding?
Holding time does not relate to machine cooling but product solidification.
Proper holding time reduces the risk of shrinkage and deformation.
Holding time is about cooling, not speeding up injection.
Holding time does not affect color but rather the physical properties of the part.
The holding time in PEEK injection molding allows the material to fully cool and solidify before demolding, reducing risks of shrinkage or deformation.
Why is specialized screw design essential for PEEK processing?
Cost reduction is not a primary function of screw design.
A specialized screw can handle over 400℃ without degradation.
Screw design does not influence color options in molding.
While speed is important, it's not the main role of a specialized screw.
Specialized screw design is essential for PEEK processing because it must withstand high temperatures (above 400℃) and ensure efficient melting without material degradation.
What effect does high back pressure have during PEEK molding?
High back pressure may restrict flow rather than enhance it.
Excessive back pressure can cause density issues and defects in the final product.
Cooling time is more influenced by other factors than back pressure alone.
High back pressure can actually hinder effective filling of molds.
High back pressure during PEEK molding can lead to defects such as bubbles or voids, as it disrupts uniform material density essential for quality products.
Which mold material is recommended for high-temperature applications in PEEK molding?
Aluminum does not withstand high temperatures as effectively as others.
This material is highly resistant to wear and heat, ideal for PEEK molds.
Most plastic composites cannot endure the high temperatures required for PEEK molding.
Copper may conduct heat well, but it lacks durability at high temperatures required for PEEK.
S136 stainless steel is recommended for high-temperature applications in PEEK molding due to its excellent heat resistance and durability, ensuring long-lasting molds without degradation.