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In blown film extrusion, the bubble diameter is typically measured using a caliper or other measuring device at the bubble's widest point, which is usually above the die. The bubble up ratio is calculated by comparing the measured bubble diameter to the die diameter. This ratio helps assess the efficiency of the extrusion process, as an optimal bubble up ratio contributes to uniform film thickness and quality. Accurate measurement is crucial for ensuring consistent film properties.
What else can I help you with?
What is Blow up ratio in film extrusion?
Blow up ratio is a number that refers to the ratio of a blown film bubble diameter to the extrusion die diameter. The blow up ratio can affect the polymer molecules.
What is the actual formula of blow up ratio?
The formula for blow-up ratio (BUR) is BUR = (D1/D2) where D1 is the diameter of the extruder screw and D2 is the diameter of the die in the blown film extrusion process. The blow-up ratio determines the amount of expansion that occurs in the film extrusion process.
Diameter of water bubble?
The diameter of a water bubble can vary depending on several factors such as the surface tension of the water, the environment in which the bubble is formed, and any external forces acting on it. On average, water bubbles typically have diameters ranging from a few millimeters to a few centimeters.
Do you have any bubble gum world records?
Yes there is a bubble gum recorderThe biggest bubble blown was 23 inches in diameter by Susan Montgomery Williams from Fresno, California.
How big was Susan mountgomery's largest bubble?
Susan Montgomery's largest bubble was measured at 50.5 cm (19.88 inches) in diameter.
What was the largest bubble gum bubble ever blown?
Biggest bubble for bubble-wand type bubbles:David Stein holds the official Guinness Book of Records mark for the longest bubble (50 feet x 2 feet in diameter)
A large bubble has appeared under the screen of your ipod classic. 120gb No screen protecter. It was bourght second hand. Bubble is about 1cm diameter?
yes
How do you measure a soap bubble?
by the help of plane glass
What bubble gum is is better bubble yum or double bubble?
Double bubble!
Which expression is equivalent to b b b b?
bubble bubble bubble bubble
What is throwing a bubble?
throwing a bubble means to blow a bubble normally in a bubble gum
How do you measure a bubble gum bubble?
Of course, a bubble gum bubble is a sphere, so...Surface area of a sphere equals 4 x p x radius2Volume of a sphere equals 4/3 x p x radius3Take a ruler and 2 paper clips.put 1 paper clip on zero and one on the end then measure the bubble by moving the paper clip on the end to your bubble.
