https://www.avient.com/sites/default/files/2020-09/lubrione-processing-guide.pdf
PROBLEM CAUSE SOLUTION
Incomplete Fill Melt and/or mold
temperature too cold
Shot Size
• Increase nozzle and barrel temperatures
• Increase mold temperature
• Increase injection speed
• Increase pack and hold pressure
• Increase nozzle tip diameter
• Check thermocouples and heater bands
• Enlarge or widen vents and increase number of vents
• Check that vents are unplugged
• Check that gates are unplugged
• Enlarge gates and/or runners
• Perform short shots to determine fill pattern and verify
proper vent location
• Increase wall thickness to move gas trap to parting line
• Increase cushion
Brittleness Melt temperature too low
Degraded/Overheated material
Gate location and/or size
• Increase melt temperature
• Increase injection speed
• Measure melt temperature with pyrometer
• Decrease melt temperature
• Decrease back pressure
• Use smaller barrel/excessive residence time
• Relocate gate to nonstress area
• Increase gate size to allow higher flow speed and
lower molded-in stress
Fibers on Surface
(Splay)
Melt temperature too low
Insufficient packing
• Increase melt temperature
• Increase mold temperature
• Increase injection speed
• Increase pack and hold pressure, and time
Sink Marks Part geometry too thick
Melt temperature too hot
Insufficient material volume
• Reduce wall thickness
• Reduce rib thickness
• Decrease nozzle and barrel temperatures
• Increase shot size
• Increase injection rate
• Increase packing pressure
Flash Injection pressure too high
Excess material volume
Melt and/or mold
temperature too hot
• Decrease injection pressure
• Increase clamp pressure
• Decrease injection speed
• Increase transfer position
• Decrease pack pressure
• Decrease shot size
• Decrease injection speed
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Decrease screw speed
TROUBLESHOOTING RECOMMENDATIONS
PROBLEM CAUSE SOLUTION
Excessive Shrink Too much orientation • Increase packing time and pressure
• Increase hold pressure
• Decrease melt temperature
• Decrease mold temperature
• Decrease injection speed
• Decrease screw rpm
• Increase venting
• Increase cooling time
Not Enough Shrink Too little orientation • Decrease packing pressure and time
• Decrease hold pressure
• Increase melt temperature
• Increase mold temperature
• Increase injection speed
• Increase screw rpm
• Decrease cooling time
Burning Melt and/or mold
temperature too hot
Mold design
Moisture
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Clean, widen and increase number of vents
• Increase gate size or number of gates
• Verify material is dried at proper conditions
Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature
• Decrease back pressure
• Increase screw decompression
• Verify material has been dried at proper conditions
Weld Lines Melt front temperatures
too low
• Increase pack and hold pressure
• Increase melt temperature
• Increase vent width and locations
• Increase injection speed
• Decrease injection speed
• Increase gate size
• Perform short shots to determine fill pattern and verify
proper vent location
• Add vents and/or false ejector pin
• Move gate location
Warp Excessive orientation
• Increase cooling time
• Increase melt temperature
• Decrease injection pressure and injection speed
• Increase number of gates
Sticking in Mold Cavities are overpacked
Part is too hot
• Decrease injection speed and pressure
• Decrease pack and hold pressure
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Increase cooling time
• Increase draft angle
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
TROUBLESHOOTING RECOMMENDATIONS
Note: These are general processing conditions.
https://www.avient.com/sites/default/files/2020-09/edgetek-processing-guide.pdf
PROBLEM CAUSE SOLUTION
Excessive Shrink Too much orientation • Increase packing time and pressure
• Increase hold pressure
• Decrease melt temperature
• Decrease mold temperature
• Decrease injection speed
• Decrease screw rpm
• Increase venting
• Increase cooling time
Not Enough Shrink Too little orientation • Decrease packing pressure and time
• Decrease hold pressure
• Increase melt temperature
• Increase mold temperature
• Increase injection speed
• Increase screw rpm
• Decrease cooling time
Burning Melt and/or mold
temperature too hot
Mold design
Moisture
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Clean, widen and increase number of vents
• Increase gate size or number of gates
• Verify material is dried at proper conditions
Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature
• Decrease back pressure
• Increase screw decompression
• Verify material has been dried at proper conditions
Weld Lines Melt front temperatures
too low
• Increase pack and hold pressure
• Increase melt temperature
• Increase vent width and locations
• Increase injection speed
• Decrease injection speed
• Increase gate size
• Perform short shots to determine fill pattern and verify
proper vent location
• Add vents and/or false ejector pin
• Move gate location
Warp Excessive orientation
• Increase cooling time
• Increase melt temperature
• Decrease injection pressure and injection speed
• Increase number of gates
Sticking in Mold Cavities are overpacked
Part is too hot
• Decrease injection speed and pressure
• Decrease pack and hold pressure
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Increase cooling time
• Increase draft angle
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
TROUBLESHOOTING RECOMMENDATIONS
PROBLEM CAUSE SOLUTION
Incomplete Fill Melt and/or mold
temperature too cold
Shot Size
• Increase nozzle and barrel temperatures
• Increase mold temperature
• Increase injection speed
• Increase pack and hold pressure
• Increase nozzle tip diameter
• Check thermocouples and heater bands
• Enlarge or widen vents and increase number of vents
• Check that vents are unplugged
• Check that gates are unplugged
• Enlarge gates and/or runners
• Perform short shots to determine fill pattern and verify
proper vent location
• Increase wall thickness to move gas trap
to parting line
• Increase cushion
Brittleness Melt temperature too low
Degraded/Overheated material
Gate location and/or size
• Increase melt temperature
• Increase injection speed
• Measure melt temperature with pyrometer
• Decrease melt temperature
• Decrease back pressure
• Use smaller barrel/excessive residence time
• Relocate gate to nonstress area
• Increase gate size to allow higher flow speed and lower
molded-in stress
Fibers on Surface
(Splay)
Melt temperature too low
Insufficient packing
• Increase melt temperature
• Increase mold temperature
• Increase injection speed
• Increase pack and hold pressure, and time
Sink Marks Part geometry too thick
Melt temperature too hot
Insufficient material volume
• Reduce wall thickness
• Reduce rib thickness
• Decrease nozzle and barrel temperatures
• Increase shot size
• Increase injection rate
• Increase packing pressure
Flash Injection pressure too high
Excess material volume
Melt and/or mold
temperature too hot
• Decrease injection pressure
• Increase clamp pressure
• Decrease injection speed
• Increase transfer position
• Decrease pack pressure
• Decrease shot size
• Decrease injection speed
• Decrease nozzle and barrel temperatures
• Decrease mold temperature
• Decrease screw speed
TROUBLESHOOTING RECOMMENDATIONS
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https://www.avient.com/products/thermoplastic-elastomers/resound-rec-recycled-content-thermoplastic-elastomers
reSound™ REC post-industrial recycle (PIR) and post-consumer recycle (PCR) TPEs help brand owners create sustainable end-user products, with formulations utilizing 9-83% recycled content.
Manufactured in North America, Europe and Asia, these grades give multinational customers global access to a more sustainable alternative to virgin TPE grades with comparable performance.
https://www.avient.com/sites/default/files/2023-12/Jeddah%2C Saudi Arabia ISO 9001.pdf
SN Registrars (Holdings) Limited Certificate Number: DAS 65732900/31/Q Rev: 003
Registration House, 22b Church Street,
Rushden, Northamptonshire,
NN10 9YT, UK
Tel: +44 (0) 1933 381859
Email: enquiries@snregistrars.com
Web: www.snregistrars.com
Company number: 07659067
mailto:enquiries@snregistrars.com
http://www.snregistrars.com/
https://www.avient.com/sites/default/files/2023-12/Jeddah%2C Saudia Arabia ISO 14001.pdf
SN Registrars (Holdings) Limited Certificate Number: DAS 18788177/31/E Rev: 001
Registration House, 22b Church Street,
Rushden, Northamptonshire,
NN10 9YT, UK
Tel: +44 (0) 1933 381859
Email: enquiries@snregistrars.com
Web: www.snregistrars.com
Company number: 07659067
mailto:enquiries@snregistrars.com
http://www.snregistrars.com/
https://www.avient.com/investor-center/news/polyone-announces-first-quarter-2017-results
During the quarter, the company noted it completed a number of capital structure improvements including upsizing its credit facility from
Patterson said, "I'm pleased with our strong start to the year and our global team who delivered these results.
To listen to this recording, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and enter conference ID number 99045455.
https://www.avient.com/sites/default/files/2020-09/sem-tpes-for-anti-vibration-feet-application-bulletin.pdf
When top load washing machines have issues with vibration and walking, manufacturers face a high number of
costly service calls to remedy the problem.
VERSAFLEX™ VDT
4202-40B
DYNAFLEX™
G7940
Defining Characteristic Vibration damping Vibration isolation
What it Does
Dampens vibrations,and
specifically minimizes
appliance walking
Isolates vibrations, which
reduces overall movement
of the appliance
Tactile Feel Grippy feel Soft touch, rubbery feel
Coloring Black Natural
Hardness 40 Shore A 40 Shore A
Overmolding Substrate Polypropylene Polypropylene
HOME APPLIANCE SOLUTIONS
REDUCE MOVEMENT OF TOP LOAD
WASHING MACHINES WITH TPES
FOR ANTI-VIBRATION FEET
EXAMPLES OF APPLICATION-SPECIFIC MATERIALS AND DESIGN SUPPORT
DynaflexVersaflex VDT
Polypropylene
HOW OUR TPES MAKE THE DIFFERENCE IN TOP LOADING WASHING MACHINE
ANTI-VIBRATION FEET
Lower the number of service calls – Our TPEs for
anti-vibration feet reduce appliance movement and
walking during use, thus lowering the number of
service calls and reducing costs.
https://www.avient.com/sites/default/files/2022-02/Sustainability ESG Disclosures_Silicon Dioxide.pdf
CATEGORY DETAIL
EC Number 231-545-4
CAS Number 7631-86-9
Chemical Name Silicon Dioxide (SiO2)
Structural Formula
CHEMICAL IDENTITY
Si
O O
HEALTH EFFECTS
HUMAN HEALTH SAFETY ASSESSMENT
Consumer No human health hazard has been identified relating to this substance.
https://www.avient.com/news/avient-design-and-georgia-tech-students-team-innovate-polystrand-composites
The designs demonstrated the material's potential in the sporting goods sector, highlighting its ability to enhance performance and user experience.
Our local touch and customer engagement, combined with our global presence, allows us to serve customers with agility.