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When the parison is placed in the second mold it doesn't yet have the exact shape if a finished bottle. is the parisons viscosity low or high?
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∙ 9y ago
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∙ 11y ago
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When the parison is placed in the second mold it doesnt yet have the exact shape of a finished bottle is the parisons viscosity low or high?
If we assume that sufficient air pressure is being used to mold the bottle, it is probable that the temperature of the material being used is too low, and this would mean that the viscosity is too low to insure the material being blown takes the proper shape of the mold.
How multilayer bottles are manufactured?
The answer is not simple. First you'd need to understand how bottles can be manufactured through different processes. Extrusion Blow Molding is a process that allows you to make a bottle usinga) an EXTRUDER to melt and feed material to b) an EXTRUSION HEAD, and then form a c) PARISON (which is a sort of a hot plastic hose that can later be blown with high pressure air) that is brought into a d) MOULD that will cool-down the plastic giving it its final form. In the extrusion head, the hot plastic (fluid) is guided trough some channels that form the Parison, several different systems are used to form a parison, and they vary from manufacturer to manufacturer. Once you have a parison you can superpose it onto another parison (it's like forming an onion) and you can add several parisons to form different layers, you can use different materials as long as you can make them stay united. The multilayer parison is then brought into the mould and blown to adopt the form of it, which can be a bottle or some other forms. In Injection Blow Molding you can also use the multilayer process to form a bottle. The process is quite different here: you need to inject first a preform (which is a sort of tube o proto-bottle) and then you condition its temperature to allow blowing in a next step. For this process you need two molds, one that will be used for injection and the other that will be used to blow the bottle. The preform or proto-bottle is then brought into the blowing mould and blown to the shape of the bottle using high pressure air. To form several layers you need a multi-extruder or canyon capable machine that injects the material layer onto layer. You can have several different materials as long as they are compatible and stick together. I hope this is clear for you - if not, i could expand the answers, and maybe include a picture....
What is sae 30 mean?
"Most of the time when viscosity is explained words are used that are too technical for the average person to quickly grasp. This leaves them still wondering what the viscosity numbers really mean on a bottle of motor oil. Simply put, viscosity is the oil's resistance to flow or, for the layman, an oil's speed of flow as measured through a device known as a viscometer. The thicker (higher viscosity) of an oil, the slower it will flow. You will see oil viscosity measurement in lube articles stated in kinematic (kv) and absolute (cSt) terms. These are translated into the easier to understand SAE viscosity numbers you see on an oil bottle."
As the temperature of a fluid increases does its viscosity increase or decrease?
Assuming all other conditions stay the same as the viscosity increase this restricts flow and the flow rate will slow down. For example if you put water in a squeezable ketchup bottle it would be able to be emptied much faster than if you applied the same pressure with ketchup in the bottle.
What is it when you attempt to hit someone else with a glass beer bottle?
due to the mass of the beer bottle, its velocity, and possible viscosity of the liquid inside, the beer bottle will smash through someones head and cut there head clear off. I sees it, is to say i saw it happen..
Where can one purchase a bottle filling machine?
When buying a bottle filling machine, one should first determine what will the bottle be filled with. Items such as liquids, dry goods such as pills and powders, will require a different type of bottle filling machine because of the viscosity of the materials. One may purchase a bottle filling machine by going to the site Kinnek and getting a quote.
Average speed of tomato sauce leaving a bottle?
Ketchup exits the iconic glass bottle at .028 miles per hour. According to Heinz.com, if the viscosity of the ketchup is greater than this speed, the ketchup is rejected for sale.
When you tip a syrup bottle upside down, It takes a long time for all the syrup to move down.Explain this, using the idea of viscosity, cohesion,and adhesion?
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Why might the viscosity of shampoo be important to people who design and manufacture it?
We believe that having the perfect viscosity is important to any shampoo. Too thin and it'll run off easily. Too thick and it'll never reach the scalp or get out of the bottle. Also, making it thin could be hard for the comsumer (getting it in their eyes).
What is the 'Pee Pee Bottle' product meant to do?
The 'Pee Pee Bottle' is designed to help toddlers urinate on-the-go, when there is not a clean bathroom available. Parents can bring the portable 'pee-pee bottle' with them and when the child has finished urinating, the bottle can be sealed and then cleaned out at a more convenient time. The pee-pee bottle works for both boys and girls.
What is fluid friction please give an exemple?
Fluid Friction is best visualized by VISCOSITY, which is a measure of Flow resistance, or thickness of a Fluid. The thicker a Fluid is the harder it is to move an object through it.Think of the difference between Water and Honey. Turn a bottle of Honey upside down and the air bubble slowly flows through it from down to up. Do the same thing with a bottle of Water and the bubble ZIPS to the top.Honey has more Fluid Friction (Viscosity) than Water.
Why is oil leaking out of your electric chainsaw?
It is completely normal. To prevent this, when finished dump oil from tank back in to the original bottle.
