Viscosity index

Viscosity index

The viscosity of the material at 1000 1/s shear rate and at a specified temperature.

For example, VI(240)125 means that the material has a viscosity of 125 Pa.s at a shear rate of 1000 1/s and a temperature of 240C.

The viscosity index is used to compare the viscosity of one material to another.

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Part of Speech: noun
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Industry/Domain: Software
Category: CAM
Company: Moldflow
Product: Moldflow Plastics Advisers
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Related terms

viscosity index

Agriculture; Animal feed

A measure of the viscosity-temperature characteristics of a fluid as referred to that of two arbitrary reference fluids.

viscosity index

Software; CAM

The viscosity of the material at 1000 1/s shear rate and at a specified temperature. For example, VI(240)125 means that the material has a viscosity of 125 Pa.s at a shear rate of ...

viscosity index improvers

Industrial machinery; Industrial lubricants

Additives that increase the viscosity of the fluid throughout its useful temperature range. Such additives are polymers that possess thickening power as a result of their high ...

viscosity index (VI)

Industrial machinery; Industrial lubricants

A commonly used measure of a fluid's change of viscosity with temperature. The higher the viscosity index, the smaller the relative change in viscosity with temperature.

viscosity index improver

Automotive; Automobile

Chemical additive to modify an oil's viscosity characteristics.

viscosity index (VI)

Automotive; Automobile

A measure of how the viscosity of a liquid (especially oil) changes with temperature: the higher the VI, the smaller the change of viscosity with temperature.

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Software; CAM

The barrel capacity is the maximum weight of material that a machine can produce from one forward motion of the ram or screw.

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The barrel effect is the effect of material compressibility while the material is in the barrel of the injection molding machine. This compressibility can be significant. A ...

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Software; CAM

A batch is the quantity of polymer that is made in one operation. A batch is also referred to as a lot In CAE products, batch refers to the execution of consecutive analyses in ...

bending moment

Software; CAM

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Software; CAM

A boss is a raised projection in a molded part that usually has a hole in it to provide additional material for supporting a mechanical fastener, such as a screw.

boundary representation solid

Software; CAM

A boundary representation solid is a model format produced from a surface modeling CAD system. The solid is defined as a list of surfaces that enclose a volume.

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