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FAQ

Yes, aluminum sheet can be used for certain medical applications. It is commonly utilized in medical equipment, such as imaging machines, as it is lightweight, durable, and has good electrical conductivity. However, it is important to note that aluminum's use in direct contact with the human body or in implants is limited due to potential health concerns and the availability of more suitable materials.

There are several methods to form curves or shapes in aluminum sheets. One common technique is called bending, where the sheet is clamped and then gradually bent using a mechanical press brake or a hammer. Another method is called roll forming, which involves passing the aluminum sheet through a series of rollers to achieve the desired shape. Additionally, aluminum sheets can be molded or pressed into curves or shapes using specialized tools or dies.

why is copper sheet but not aluminum sheet that becomes the negative pole after putting copper sheet and aluminum sheet connected with wire into concentrated nitric acid?

According to metal reactivity series order table, aluminum has a better metallicity, but it will be passivated soon after contacting concentrated sulfuric acid, and won’t react again. But copper and concentrated sulfuric acid can react continually. So aluminum sheet becomes the positive pole after passivation.

ive been working with parts for a robot without gloves and ive manged to 3 cuts in my fingers, also my hands get covered with powdered aluminum from sanding the peices, can this be dangerous to my health?

ALUMINUM DUSTS ARE CONSIDERED NUISANCE PARTICLUATES, WHICH HAVE LITTLE ADVERSE EFFECT ON LUNGS AND DO NOT PRODUCE SIGNIFICANT ORGANIC DISEASE OR TOXIC EFFECTS

I want to make a dress from aluminum cans. However, aluminum is very sharp once cut. So, do you thing there is a possible way to make the cut edges less sharp? Would sanding the edges help?

Or you could just curve them to the back or front a bit by hand, or roll them over a dowel, etc, for more of a curve but maybe easier to do. You could also try sanding or filing them (electric sanders/etc would be best but wear eye protection and a mask to keep metal dust/bits from getting to you). Or you could also paint each edge with something like ModPodge, white glue, polyurethane, etc, all of which would dry clear (or dip each edge into a tray of one of them)...or you could use acrylic paint but that would be colored. Or you could put tape over the edge (but more time consuming). Or just connecting the cans could help, whether you'll be connecting them with lacing through holes, etc, or the edges of some glued/taped overlapped on other cans.

The weight of an aluminum sheet can vary depending on its thickness and dimensions.

Yes, aluminum sheets can be anodized. Anodizing is an electrochemical process that creates a durable, corrosion-resistant layer on the surface of aluminum. This process can be applied to aluminum sheets to enhance their appearance, increase their resistance to wear and tear, and improve their overall performance.

My understanding of the periodic table, the transitional metals all rust because the S shells are higher energy then the D shells. So all transitional metals have 2 valence electrons. (Roughly...some electrons like to move around and give different apparent charges.) So why does aluminum corrode if it doesn't have a 2+ charge?

'Rusting' commonly refers to the corrosion (oxidation) of iron so when talking about other metals, it is better to use the term 'corrosion' or 'oxidation'. Aluminum can corrode and the fact that it has a general oxidation number of +3 doesn't really matter. Many elements which have a charge that is different from +2 can oxidize. Alkali metals for instance (which have a charge of +1) can oxidize. Lithium can form lithium oxide (Li2O), sodium can form sodium oxide (Na2O) and so on. However, aluminum is known to be quite resistant to corrosion (oxidation) because it spontaneously forms a thin (solid) oxide layer at it's surface protecting it from further oxidation whereas iron, for an example, will easily lose that thin layer (it ''peels off easily'') exposing more iron to corrosion. So since Al has a +3 charge and O has a -2 charge, you'll need 2 atoms of Al and 3 atoms of O to make an electrically neutral compound. 2 atoms of Al = +6 charge 3 atoms of O = -6 charge Hence Al2O3 which is aluminum oxide. I hope it helps.