Aluminum Sheet Metal Thickness
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Aluminum and Copper wiring?
- It is very common in older homes to have tin coated copper wiring which many people then think they have aluminum wiring. If you have a piece of the older wiring or can turn the breaker off to one of these wires use a screw driver to scrape at the wire on the bare end; if it's tin coated copper you will see the orange/rust color of copper after a few light scrapes, the scaping is nothing agressive. This will determine if you have aluminum or not. Someone else mentioned about a loose connection which if a copper wire aluminum wire are connected together it would very likely fail creating a short. The two different materials expand contract at different rates which creates a bad connection. There is a special crimp process that can be done to join the two but a electrician should definately do this. A lot of the older homes just have two many items all on one breaker. With what you've described I would suggest using a electrician. Additional: If no breakers are tripped off and you do not have power in some areas you might have another panel (sub-panel) somewhere else in the home OR this circuit is hooked up to a GFI outlet somewhere else such as the kitchen, bathroom or garage. I would physically re-check each breaker and then hunt for a GFI outlet and sub-panel.s
explain the following observation :(1) aluminium foil does not react with water?
- Aluminium is very reactive in air and forms a protective oxide coating. This protects it when placed in water as aluminium oxide is unreactive with water. When immersed in mercury the oxide coating is removed and therefore the aluminium itself reacts when the cleaned aluminium metal is immersed in water.s
Is there a way to join copper and aluminium?
- Aluminium and copper can be used to produce an alloy (see the first link, under wrought alloys). The alloy strength is comparable to steel. Aluminium melts at around 660C and copper at 1084C, so you'd need special burners to produce that kind of heat. An oxyacetylene torch would do it, but more readily available gases like propane and butane mixed with air would also suffice.s
why lye and aluminum shouldn't be mixed?
- Under normal circumstances, aluminum does not react with water, as an impermeable protective layer composed of aluminum hydroxide either forms within seconds or is already in place. With the addition of sodium hydroxide, the formation of a protective layer is prevented. With the production of aluminates [ Al(OH)4 ]-, the amphoteric (capable of acting as either an acid or a base) aluminum hydroxide Al(OH)3 goes in solution: 2 Al + 6 H2O -- 2 Al(OH)3 + 3 H2 Al(OH)3 + NaOH -- Na+ + [ Al(OH)4 ]- A layer of aluminum oxide previously formed by passive corrosion is dissolved by the addition of sodium hydroxide. For this reason, the reaction takes place at the beginning relatively slowly: Al2O3 + 2 NaOH + 3 H2O -- 2 Na+ + 2 [ Al(OH)4 ]- The aluminum completely dissolves and the water acts here too as an acid (for an analog, see Experiment 4.4.1). This reaction is used in drain cleaners. They are mostly made out of strong alkalis, to which alumunim or zinc has been added. The alkalis break down organic residues chemically. In addition, the formation of hydrogen leads to a bubbling effect which adds an additional mechanical cleaning mechanism. The big problem here is the formation of hydrogen gas (as well as some heat). The hydrogen gas is flammable, and if it's in a closed container, will explodes
Thickness of Aluminum Foil A rectangular sheet of?
- density Aluminum 2700 kg/m³ Volume = 0.5 x 0.2 x d = 0.1d m³ where d is thickness 5.4 g = 0.0054 kg 0.0054 kg / 2700 kg/m³ = 2.0e-6 m³ 2.0e-6 m³ = 0.1d m³ d = 2.0 e-5 m or 20 µm or 0.02 mm or 0.002 cm .s
What kind of material is wood grain aluminum sheet?
- Wood grain aluminum plate itself is the main aluminum alloy,The surface of that wood grain should be paint or inks
how to melt down recyclable aluminum
- It requires high temperature (933K), and is inefficient for small quantities. Why not just sell it to your local recycler?s
what's the difference between aluminum sheet detergent and central air-condition detergent?
- Central air condition cleaning includes air-cooled condenser cleaning and water-cooling condenser cleaning, if it’s air-cooled condenser cleaning, you can use aluminum sheet detergent.s
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