https://www.avient.com/sites/default/files/2020-10/2020-gravi-tech-design-guide-.pdf
A larger processing window
will account for the lot to lot changes between
materials, without having to make process
changes .3
Setting the Beginning Variables
• Injection Pressure = Maximum of machine
- Should not be pressure limited
• Injection Velocity = Maximum of machine
- This is for the injection velocity curve
starting point
- If flashing is an issue start slower and
then increase
• Injection Cut-Off Time = 15 seconds
- This is only a limiting factor, needs to
be above 10 seconds for velocity graph
• Hold Pressure = 0
- Need to get 95% full part with a hold
pressure of 0
• Hold Time = 10-15 seconds
- Need to ensure gate is frozen
• Screw Speed = 90% of Maximum
- Unless shear sensitive material, if shear
sensitive, set RPMs to optimum
• Cooling Time = 10–15 seconds
• Shot Size = 50% of calculated part volume
• Decompression = .25in
• Transfer Position = High enough to ensure
a cushion
- Cushion size does not matter but there
must be a cushion to keep a constant
pressure on the melt during hold time
- Typically 0.25" is sufficient
• Back Pressure = 800-1000 plastic pressure
- 100–150 hydraulic pressure
- Unless specified by material data sheet
Determining Shot Size
The shot size should be determined by
calculating the combined volume of the parts
and the runner system .
If the part
begins to flash and there are still sinks,
the problem is most likely not
insufficient hold pressure, but rather
could be material related
Gate Freeze Study
The gate freeze study is performed to conclude
at what time the gate freezes .
https://www.avient.com/sites/default/files/2022-03/Avient 2021 Annual Report.pdf
These core values, which begin with our individual
decisions and actions, focus our attention on
putting the customer first by creating genuine value
through collaboration, innovation and an unwavering
commitment to excellence.
These personal values begin with each of us—the
judgments and decisions we make as individuals affect
the way Avient is viewed in the marketplace and in the
communities where we work.
Our commitment to diversity begins at the highest levels of our organization, as evidenced by the fact that 42% of
our Board of Directors are female or racially diverse.
https://www.avient.com/sites/default/files/resources/PolyOne%25202014%2520Annual%2520Report.pdf
These core values, which begin
with our individual decisions
and actions, focus our attention
on putting the customer first by
creating genuine value through
collaboration, innovation and
an unwavering commitment to
excellence.
It will be effective for us beginning January 1, 2017, with early
adoption not permitted.
It will be effective for us beginning January 1, 2017, with early adoption not
permitted.
https://www.avient.com/sites/default/files/2020-10/luxury-closures-gravi-tech-design-guide-2.0-application-specific.pdf
A larger processing window
will account for the lot to lot changes between
materials, without having to make process
changes .3
Setting the Beginning Variables
• Injection Pressure = Maximum of machine
- Should not be pressure limited
• Injection Velocity = Maximum of machine
- This is for the injection velocity curve
starting point
- If flashing is an issue start slower and
then increase
• Injection Cut-Off Time = 15 seconds
- This is only a limiting factor, needs to
be above 10 seconds for velocity graph
• Hold Pressure = 0
- Need to get 95% full part with a hold
pressure of 0
• Hold Time = 10-15 seconds
- Need to ensure gate is frozen
• Screw Speed = 90% of Maximum
- Unless shear sensitive material, if shear
sensitive, set RPMs to optimum
• Cooling Time = 10–15 seconds
• Shot Size = 50% of calculated part volume
• Decompression = .25"
• Transfer Position = High enough to ensure
a cushion
- Cushion size does not matter but there
must be a cushion to keep a constant
pressure on the melt during hold time
- Typically 0.25" is sufficient
• Back Pressure = 800-1000 plastic pressure
- 100–150 hydraulic pressure
- Unless specified by material data sheet
Determining Shot Size
The shot size should be determined by
calculating the combined volume of the parts
and the runner system .
If the part
begins to flash and there are still sinks,
the problem is most likely not
insufficient hold pressure, but rather
could be material related
Gate Freeze Study
The gate freeze study is performed to conclude
at what time the gate freezes .
https://www.avient.com/sites/default/files/2024-08/Avient-2023-Sustainability-Report_5.pdf
Our commitment to diversity
begins at the highest levels of our organization, as evidenced by the fact that 50% of our Board of Directors are female or
racially diverse.
CCS training
is provided to ever y member of the Avient
salesforce beginning in their onboarding
process and continues thereafter throughout
their careers.
Our alumni base continues to grow, as they
immediately begin to utilize their leadership
skills to help our great company thrive.
https://www.avient.com/sites/default/files/2024-08/Avient 2023 Sustainability Report_6.pdf
Our commitment to diversity
begins at the highest levels of our organization, as evidenced by the fact that 50% of our Board of Directors are female or
racially diverse.
CCS training
is provided to ever y member of the Avient
salesforce beginning in their onboarding
process and continues thereafter throughout
their careers.
Our alumni base continues to grow, as they
immediately begin to utilize their leadership
skills to help our great company thrive.
https://www.avient.com/sites/default/files/2021-11/avient-design-ergonomic-design-guide.pdf
CASE STUDY CONCLUSION
https://www.researchgate.net/publication/328003979_Risk_assessment_of_vascular_disorders_by_a_supplementary_hand-arm_vascular_weighting_of_hand-transmitted_vibration
https://www.researchgate.net/publication/328003979_Risk_assessment_of_vascular_disorders_by_a_supplementary_hand-arm_vascular_weighting_of_hand-transmitted_vibration
Ergonomic Grip Design Guide 22
DESIGNING FOR SUSTAINABILITY
With sustainability in mind at the beginning
of product design, the result can be a product
with improved ergonomic elements and
functional performance that also helps to reduce
environmental impact through the choice of
sustainable materials, a reduction in resource
usage, and the optimization of end-of-life options .
https://www.avient.com/sites/default/files/2021-03/avient-antitrust-2021-update-neth-a4.pdf
Aan het begin van elke vergadering moet
er ook een geheugensteuntje zijn over de
doelen van de vergadering.
https://www.avient.com/sites/default/files/2023-07/Avient-2022-Sustainability-Report.pdf
As the CEO, change of this
importance must begin with me—my direction, decisions and actions,” he explained.
Our commitment to diversity begins at the highest levels of our organization, for example having 42% female
or diverse board members.
CCS training
is provided to ever y member of the Avient
salesforce beginning in their onboarding
process and continues thereafter throughout
their careers.
https://www.avient.com/sites/default/files/resources/PolyOne%25202017%2520Annual%2520Report.pdf
These core values, which begin with our individual decisions and actions, focus
our attention on putting the customer first by creating genuine value through collaboration, innovation and an
unwavering commitment to excellence.
We have elected to transition
to the standard through a cumulative-effect adjustment as of the date of adoption, but as a result of no material
impact from the adoption of the standard, we will not have an adjustment to our beginning retained earnings
balance.
We will recognize an adjustment of $17.0 million to beginning retained earnings upon
required adoption of this standard on January 1, 2018 from transactions completed as of December 31, 2017.