Английский для сварщиков. Гричин С.В. - 10 стр.

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10
make them act as a single piece. Welding is vital to our economy. It is often
said that over 50% of the gross national product of the U.S.A. is related to
welding in one way or another. Welding ranks high among industrial
processes and involves more sciences and variables than those involved in
any other industrial process. There are many ways to make a weld and many
different kinds of welds. Some processes cause sparks and others do not even
require extra heat. Welding can be done anywhere…
outdoors or indoors, underwater and in outer space.
Nearly everything we use in our daily life is
welded or made by equipment that is welded. Welders
help build metal products from coffeepots to
skyscrapers. They help build space vehicles and millions
of other products ranging from oil drilling rigs to automobiles. In
construction, welders are virtually rebuilding the world, extending subways,
building bridges, and helping to improve the environment by building
pollution control devices. The use of welding is practically unlimited. There
is no lack of variety of the type of work that is done.
Welders are employed in many industry groups. Machinery manufacturers
are responsible for agricultural, construction, and mining
machinery. They are also involved in bulldozers, cranes,
material handling equipment, food-processing machinery,
papermaking and printing equipment, textiles, and office
machinery.
The fabricated metals products compiles another
group including manufacturers of pressure vessels, heat exchangers, tanks,
sheet metal, prefabricated metal buildings and architectural and ornamental
work. Transportation is divided into two major groups: manufacturers of
transportation equipment except motor vehicles; and motor vehicles and
equipment. The first includes shipbuilding, aircraft, spacecraft, and railroads.
The second includes automobiles, trucks, buses, trailers, and associated
equipment.
A small group of welders belongs to the group of
repair services. This includes maintenance and repair on
automobiles or refers to the welding performed on
industrial and electrical machinery to repair worn parts.
The mining, oil extraction, and gas extraction industries
form yet another group. A large portion of the work
involves drilling and extracting oil and gas or mining of ores, stone, sand and
gravel.
Welders are also employed in the primary metals industries to include
steel mills, iron and steel foundries, smelting and refining plants. Much of

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