What are the benefits and characteristics of aluminum used in broken bridge aluminum doors and windows equipment

by:kingtool aluminium machinery     2021-09-30
What are the benefits and characteristics of aluminum used in broken bridge aluminum doors and windows equipment? Aluminum is added to some metals in small amounts to improve their properties for specific purposes, such as aluminum bronze and most magnesium-based alloys; or, for aluminum-based alloys, appropriate amounts of other metals and silicon are added to aluminum . This metal and its alloys are widely used in aircraft manufacturing, construction materials, durable consumer goods (refrigerators, air conditioners, cooking utensils), electrical conductors, and chemical and food aluminium processing machine. Pure aluminum (99.996%) is quite soft and fragile; commercial aluminum (99% to 99.6% purity) with small amounts of silicon and iron is hard and strong. Aluminum is malleable and highly plastic, and can be drawn into a wire or rolled into a thin aluminum foil. The density of this metal is only one-third that of iron or copper. Although chemically active, aluminum has strong corrosion resistance, because in the air, a hard oxide film will form on the surface of aluminum. Aluminum is an excellent conductor of heat and electricity. Its thermal conductivity is about one-half of copper; its electrical conductivity is about two-thirds. Its crystal is a face-centered cubic structure. All natural aluminum is the stable isotope aluminum-27. Metal aluminum and its oxides and hydroxides are non-toxic. Aluminum is slowly eroded by most dilute acids and quickly dissolves in concentrated hydrochloric acid. However, concentrated nitric acid can be transported in aluminum tank trucks because it renders the metal powerless. Even very pure aluminum is strongly corroded by alkaline substances such as sodium hydroxide and potassium hydroxide, producing hydrogen and aluminate ions. Because of its strong affinity for oxygen, if the small aluminum is ignited, it will burn in carbon monoxide or carbon dioxide to form aluminum oxide and carbides, but when the temperature reaches red heat, aluminum is inert to sulfur. Through emission spectroscopy, aluminum can be detected in concentrations as low as one part per million. The aluminum used in the broken bridge aluminum door and window equipment can be quantitatively analyzed as an oxide (formula Al2O3) or as a derivative of the organic nitrogen compound 8-hydroxyquinoline. The molecular formula of the derivative is Al (C9H6ON) 3.325
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