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The development of Pneumatic Technology
Air pressure engineering or technology is called Pneumatics in English.
Pneumatics is an engineering technique that uses the air we are using in a compressed or deflated manner for the purpose.
The use of Air
History of Pneumatic technology
Around 100 B.C. to 100 A.D., weapons, pumps, watches, and Organ began to be used and the ancient Egyptians made fire using this compressed air.
Although it has been used in government work and construction since the 14th century for mechanization of power and improvement of workability, the application of pneumatic technology in the industry is actually from the 1940s to the 1950s, with the invention of the Second Industrial Revolution, the 1850s mining steam drill, the 1880s Air Brake, and the 1927 automatic door opener for vehicles.
Characteristics of Pneumatic
Advantage of Pneumatic
Weekness of Pneumatic
Composition unit of Air(%)
/ | N2 | O2 | Ar | CO2 |
---|---|---|---|---|
Volume Composition | 78.09 | 20.95 | 0.93 | 0.03 |
Weight Composition | 75.53 | 23.14 | 1.28 | 0.05 |
Basic compositon of Pneumatic System
Air Compressor
Compressed air is made from a compressor.
The pressure generated by the compressor is a Gauge pressure of 7 to 10Kgf/Cm2 and, depending on its general purpose, a high pressure of 10Kgf/Cm2 may be used.
This point is taken into account because it is subject to the high pressure gas regulation.
In addition, a vacuum pump is used to obtain negative or vacuum pressure.
Treatment of compressed air
Compressed air generated from the compressor is not allowed to be used as a normal air pressure source because it causes the following problems under the same conditions.
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