https://www.avient.com/sites/default/files/2024-12/Terms and Conditions of Sale for Czech Republic.pdf
If Seller grants
a discount, such discount only relates to the delivery and/or quantity
of the Products specifically mentioned in Seller’s order
confirmation.
Any such statement, sample or other
information of Seller in relation to the Specifications, the Products
and the use thereof are furnished for the accommodation of Buyer
only and are not warranties or representations of performance.
15.
The Buyer hereby agrees that any data in
connection with the business relation existing between the Buyer
and the Seller may be processed by the Seller in accordance with the
relevant laws and regulations.
20.
https://www.avient.com/sites/default/files/2024-12/Terms and Conditions of Sale for India %28English%29.pdf
The sale of Products or the providing of samples
or developmental material shall not, by implication or otherwise,
convey any license under any intellectual property right relating to
the compositions and/or applications of the Products, sample, or
developmental material, as applicable.
If Seller grants
a discount, such discount only relates to the delivery and/or quantity
of the Products specifically mentioned in Seller’s order
confirmation.
Any such statement, sample or other
information of Seller in relation to the Specifications, the Products
and the use thereof are furnished for the accommodation of Buyer
only and are not warranties or representations of performance
15.
https://www.avient.com/sites/default/files/2024-12/Terms and Conditions of Sale for Thailand %28English%29.pdf
The sale of Products or the providing of samples
or developmental material shall not, by implication or otherwise,
convey any license under any intellectual property right relating to
the compositions and/or applications of the Products, sample, or
developmental material, as applicable.
If Seller grants
a discount, such discount only relates to the delivery and/or quantity
of the Products specifically mentioned in Seller’s order
confirmation.
Any such statement, sample or other
information of Seller in relation to the Specifications, the Products
and the use thereof are furnished for the accommodation of Buyer
only and are not warranties or representations of performance.
15.
https://www.avient.com/sites/default/files/2024-12/Terms and Conditions of Sale for Hong Kong %28English%29.pdf
The sale of Products or the providing of samples
or developmental material shall not, by implication or otherwise,
convey any license under any intellectual property right relating to
the compositions and/or applications of the Products, sample, or
developmental material, as applicable.
If Seller grants
a discount, such discount only relates to the delivery and/or quantity
of the Products specifically mentioned in Seller’s order
confirmation.
Any such statement, sample or other
information of Seller in relation to the Specifications, the Products
and the use thereof are furnished for the accommodation of Buyer
only and are not warranties or representations of performance
15.
https://www.avient.com/sites/default/files/2024-07/avient-human-rights-position-statement-updated-july-2021 %286%29.pdf
We prioritize stakeholder engagement and discussion related to
implementation of our human rights policy, particularly as it pertains to employee and environmental
safety.
Regular engagement with these key stakeholders builds positive
community relations, sets the expectation for open dialogue related to the effectiveness of our policy
implementation, and assists with preparedness and collaboration in the event of an issue in our
operations in that community.
We value opportunities to engage with these
stakeholders and welcome their feedback and input related to our activities and their interests.
https://www.avient.com/center-of-excellence/avient-europe-middle-east-and-africa
Avient Supports Resia Manufacturing to Create Prefabricated, Modular Components for Multi-Family Housing...
https://www.avient.com/center-of-excellence/avient-asia
Avient Supports Resia Manufacturing to Create Prefabricated, Modular Components for Multi-Family Housing...
https://www.avient.com/sites/default/files/2020-12/artisan-thermoplastics-nylon-processing-guide.pdf
Sink Marks
Melt too hot • Decrease nozzle and barrel temperatures• Decrease mold temperature
Insufficient
material volume
• Adjust transfer position
• Increase shot size
• Increase injection rate
• Increase packing pressure
Part geometry
too thick
• Reduce wall thickness
• Reduce rib thickness
Processing Guide 5
Troubleshooting Recommendations
Problem Cause Solution
Flash
Injection pressure
too high
• Decrease injection pressure
• Increase clamp pressure
• Decrease injection rate
• Increase transfer position
Excess
material volume
• Adjust transfer position
• Decrease pack pressure
• Decrease shot size
• Decrease injection rate
Melt or mold
too hot
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
Loose clamp • Reset mold height• Increase clamp tonnage
Shrink
Too much shrink • Increase cooling time• Decrease mold temperature
Too little shrink • Decrease cooling time • Increase mold temperature
Burning
Process related
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Decrease injection rate
• Reduce decompression
Mold design • Clean, widen and increase number of vents• Increase gate size to reduce shear
Wet material • Verify material is dried at proper condition
Nozzle Drool
Nozzle temperature
too hot
• Decrease nozzle temperature
• Decrease back pressure
• Increase screw decompression
• Verify material has been dried at proper conditions
Incorrect nozzle • Use reverse taper tip
Weld Lines
Melt front
temperatures are
too low
• Increase injection rate
• Increase pack and hold pressure
• Increase melt temperature
• Increase mold temperature
Mold design
• Increase gate size
• Identify end of fill pattern and verify proper
vent location
• Add vents or increase vent width
• Move gate location
6 Artisan Pre-Colored Thermoplastics
Problem Cause Solution
Warp
Process related
• Increase melt temp
• Reduce injection speed
• Increase pack pressure
• Increase pack time
• Decrease mold temperature
• Increase cool time
Mold design • Non-uniform mold cooling
Part design • Non-uniform wall thickness
Thermolator incorrect
temperature
• Check settings
• Inspect thermocouple
Sticking in Mold
Overfilled cavity
• Decrease injection rate and pressure
• Decrease hold pressure
• Adjust transfer position
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Decrease cooling time
Part too hot
• Decrease barrel temperature
• Decrease mold temperature
• Increase cooling time
Mold design • Increase draft angle • Polish cores in direction of ejection
Black Specks
Contamination • Purge machine
Degradation
• Reduce melt temperature
• Reduce screw speed
• Reduce back pressure
Machine related • Check for wear on screw, barrel or check ring
Delamination
Process related
• Increase melt temperature
• Decrease injection speed
• Purge barrel to eliminate material contamination
Mold design • Reduce sharp corners in material flow path • Increase venting
Troubleshooting Recommendations
Processing Guide 7
Troubleshooting Recommendations
Problem Cause Solution
Discoloration
Oversheared
material
• Decrease melt temperature
• Decrease injection speed
• Reduce residence time
Mold design • Increase gate sizing
Dry material • Check moisture of material to ensure it is within the recommended moisture percentage for molding
1.844.4AVIENT
www.avient.com
Copyright © 2020, Avient Corporation.
https://www.avient.com/sites/default/files/2021-11/artisan-ar7300-pre-colored-formulation-processing-guide.pdf
Sink Marks
Melt too hot
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
Insufficient
material volume
• Adjust transfer position
• Increase shot size
• Increase injection rate
• Increase packing pressure
Part geometry
too thick
• Reduce wall thickness
• Reduce rib thickness
TROUBLESHOOTING RECOMMENDATIONS
PROBLEM CAUSE SOLUTION
Flash
Injection pressure
too high
• Decrease injection pressure
• Increase clamp pressure
• Decrease injection rate
• Increase transfer position
Excess
material volume
• Adjust transfer position
• Decrease pack pressure
• Decrease shot size
• Decrease injection rate
Melt and/or mold
temperature too hot
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
Loose clamp
• Reset mold height
• Increase clamp tonnage
Shrink
Too much shrink
• Increase cooling time
• Decrease mold temperature
Too little shrink
• Decrease cooling time
• Increase mold temperature
Burning
Process related
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Decrease injection rate
• Reduce decompression
Mold design
• Clean, widen and increase number of vents
• Increase gate size to reduce shear
Wet material • Verify material is dried at proper condition
Nozzle Drool
Nozzle temperature
too hot
• Decrease nozzle temperature
• Decrease back pressure
• Increase screw decompression
• Verify material has been dried at proper conditions
Incorrect nozzle • Use reverse taper tip
Weld Lines
Melt front
temperatures are
too low
• Increase injection rate
• Increase pack and hold pressure
• Increase melt temperature
• Increase mold temperature
Mold design
• Increase gate size
• Identify end of fill pattern and verify proper
vent location
• Add vents or increase vent width
• Move gate location
TROUBLESHOOTING RECOMMENDATIONS
PROBLEM CAUSE SOLUTION
Warp
Process related
• Increase melt temperature
• Reduce injection speed
• Increase pack pressure
• Increase pack time
• Decrease mold temperature
• Increase cool time
Mold design • Non-uniform mold cooling
Part design • Non-uniform wall thickness
Thermolator incorrect
temperature
• Check settings
• Inspect thermocouple
Sticking in Mold
Overfilled cavity
• Decrease injection rate and pressure
• Decrease hold pressure
• Adjust transfer position
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Decrease cooling time
Part too hot
• Decrease barrel temperature
• Decrease mold temperature
• Increase cooling time
Mold design
• Increase draft angle
• Polish cores in direction of ejection
Black Specks
Contamination • Purge machine
Degradation
• Reduce melt temperature
• Reduce screw speed
• Reduce back pressure
Machine related • Check for wear on screw, barrel or check ring
Delamination
Process related
• Increase melt temperature
• Decrease injection speed
• Purge barrel to eliminate material contamination
Mold design
• Reduce sharp corners in material flow path
• Increase venting
TROUBLESHOOTING RECOMMENDATIONS
PROBLEM CAUSE SOLUTION
Discoloration
Oversheared material
• Decrease melt temperature
• Decrease injection speed
• Reduce residence time
Mold design • Increase gate sizing
Dry material
• Check moisture of material to ensure it is within the
recommended moisture percentage for molding
TROUBLESHOOTING RECOMMENDATIONS
1.844.4AVIENT
www.avient.com
Copyright © 2021, Avient Corporation.
https://www.avient.com/sites/default/files/2020-10/2020-gravi-tech-design-guide-.pdf
In relation, if the hold/pack time
is too long, the runner will be packed out, which
could cause processing problems
Just because the barrel
temperatures are at the set values, does not
necessarily mean the screw temperature will be
the same.
It also has a means of opening
the mold and ejecting the part .