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Air
Conditioners Manufacturing
The Manufacturing Process of Air
Conditioners
By Ma Wen Jie
Making the Parts
Most air conditioners are made from sheet steel or other
easily formed metal or plastic.
The
first step in making an air conditioner is to form the metal and plastic parts.
Metal
parts are usually sheet stamped to give them the desired shape.
Sheet
stamping typically trims the metal to the required size. Large, flat plastic
pieces are often vacuum formed, while smaller pieces are cast or formed using a
number of different techniques, including vacuum forming.
If
the metal used is steel, it is then galvanized.
Galvanization
is the process of adding a layer of zinc to slow rust and other deterioration.
Once
galvanized, the steel is painted or powder coated.
Powder
coating is a durable form of paint that is sprayed on dry and then heated to
melt and bond to the metal substrate.
Assembly
Once the exterior parts are made, the air conditioner is
ready for assembly.
Most
condensers, the devices that perform heat transfer functions, are pre-made.
Most
compressors, the device that compresses the gas that transfers the heat through
the condensers, are also pre-built.
Assembling
the air conditioner is a matter of installing the compressor, the inside
condenser, which cools the air being blown into the indoor area, the outside
condenser, which transmits heat from inside the building to the outside air and
and various electronic controls.
The
condensers are connected via copper pipes to the compressor, and the electronic
controls are connected to an electric motor, which causes the compressor to
spin.
Charging
and Finishing
Once the air conditioner has been assembled, the coolant gas
is placed in the compressor, condensers and pipes to a pre-determined pressure
level.
The
air conditioner is tested for coolant leaks and the electronics are tested.
If
it works well, the cover is screwed in place.
If
the air conditioner has controls, as opposed to a remote control, control knobs
and sliders are installed.
Then
the air conditioner is packaged for transportation to a warehouse and
distribution facility.
About
the Author
Although
he grew up in Latin America, Mr. Ma is a writer based in Denver. He has been
writing since 1987 and has written for NPR, AP, Boeing, Ford New Holland,
Microsoft, RAHCO International, Umax Data Systems and other manufacturers in
Taiwan. He studied creative writing at Mankato State University in Minnesota.
He speaks fluent Mandarin Chinese, English and reads Spanish.
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