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USES OF NITROGEN GAS
Nitrogen is a chemical element with symbol N and atomic number 7. Elemental nitrogen is a colorless, odorless, tasteless, and mostly inert diatomic gas at standard conditions. Scientist has proven that four-fifths of Earth’s atmosphere is nitrogen, which was isolated and recognized as a specific substance during early investigations of the air.Among the elements, nitrogen ranks sixth in outer space abundance. The atmosphere of Earth consists of 75.51% by weight (or 78.09% by volume) of nitrogen
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Dec 06, 2019
TYPES OF WELDING GASES AND THEIR PURPOSE
TYPES OF WELDING GASES AND THEIR PURPOSE
Welding is the process of joining two pieces of materials such as thermoplastics or metal using high levels of heat. The melted parts are then left to cool in order to form a joint. Apart from electricity, there are gases which are often used in the welding process. Gases are often used with the aim of shielding the area which needs to be welded.Gas welding involves the use of a gas-fed flame torch to heat the metal work piece a
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Nov 20, 2019