Blow Molding: Part Tab

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Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable

Default Value

Range

 

Name

Plastic Bottle

Any Text

Resin Material

HDPE

List

Resin Thermal Diffusivity (cm2/s)

0.00219354

Positive

Density (g/cm3)

0.96

Positive

Max Critical Wall Thickness (cm)

0.10

Positive

Min Critical Wall Thickness (cm)

0.08

Positive

Average Wall Thickness (cm)

0.08

Positive

Bottle Mass (g)

70.0

Positive

Bottle Volume (mL)

72.9167

Positive

Shape

Oval

List

Height (cm)

21.6

Positive

Depth (cm)

9.4

Positive

Width (or Diameter) (cm)

14.0

Positive

Symbol Key: User-specified value (always input); Calculated value (always output); Sometimes input, sometimes output

Specification Choices / Comments

The following list describes the available specification choices in this tab; for more details on how these are implemented, see Blow Molding: Modeling Calculations.

Bottle Mass/Volume Options...

The user can specify either the mass or the volume of the polymeric material that makes up the molded object. The specified value must also account for any extra material that is removed during trimming and/or reaming.