air knife


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air knife

[′er ‚nīf]
(engineering)
A device that uses a thin, flat jet of air to remove the excess coating from freshly coated paper.
(metallurgy)
A device that employs a high-velocity airstream to separate metallic particles with different densities by shifting the trajectory of lighter particles more than that of heavier particles.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
EXAIR's Super Air Knife is available with or without static elimination, up to 108" wide.
Popular options include diesel-fired boilers, air compressor 185 cfm with air knife, and much more.
The wideslot positive-pressure drafting assembly parameters are as follows: the exit length L = 60 mm, the drawing segment length S = 690 mm, the air knife edge distance d = 0.16 mm, the slot width b = 4.6 mm, and the jet angle [alpha]=30[degrees].
The basic version, for example, offers manual adjustment in two positions for air knife and roller knife coating and printing without magnet for working widths of up to 240 cm.
Features such as a fully enclosed pre-cleaning booth and an anti-static deionising air knife were integrated into the design to ensure the best possible finish.
As the screw comes out--if you have some helpers--use an air knife and brass pliers to peel the PE off.
The new system can be readily integrated into a production line environment, with an air knife mechanism or similar used to fire rejected lids from the line.
Problem solution, hardware/software implementation of an air knife assembly that would remove any foreign material on the panel surface before the MPM solder placement process.
To decide, we ran a comparison test on the same application using four different blowoff methods: drilled pipe, flat air nozzles, Super Air Knife (each using compressed air as a power source), and a blower supplied air knife (using an electric motor as a power source).
The Swiftcool chill-roll unit has dual cooling rollers and a dual-chamber air knife with an integrated x-ray thickness gauge which can also work with coloured stretch film.
Splash-back solder balls occur when the wave height is set too high or hot, or the air knife is set incorrectly; if there is excess turbulence in the wave, or there is increased surface tension due to nitrogen.