Blow Up Ratio Calculator

Calculate Blow Up Ratio



Formula

To calculate the Blow Up Ratio (\(BR\)):

\[ BR = \frac{Df}{Dd} \]

Where:

What is Blow Up Ratio?

A blow up ratio is a term used in blown film problems to describe the ratio of the final tube diameter to the die diameter.

Example Calculation 1

Let's assume the following values:

Using the formula:

\[ BR = \frac{1.5}{0.5} = 3 \]

The Blow Up Ratio is 3.

Example Calculation 2

Let's assume the following values:

Using the formula:

\[ BR = \frac{2}{0.8} = 2.5 \]

The Blow Up Ratio is 2.5.