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FAQ

What kind of welding rod should be used for aluminum plate, welding and welding?.

Aluminum plate welding, now mostly choose TIG welding, MIG welding to welding, selection of welding rod is less. If the choice of electrode welding, can recommend selection of MG400 electrode, the electrode is produced by American MG welding, gas welding and welding, can all Aluminum Alloy, good welding performance. Need to use DC welding machine, welding electrode as far as possible upright, welding speed is relatively fast, about two times the carbon steel electrode. A kilogram of electrodes is nearly seventy.

what's the oxidation method of positive pole on the surface of aluminum sheet?

Do chemical polishing again, oxidation time is about 40 – 90 minutes, after finishing all of these, you can conduct positive pole oxidation, choose sulfuric acid solution in normal situation, pretreatment is very important in the whole process, take stereo as negative pole, firstly, use the solution mixed of carbonate-bicarbonate and detergent to heat and clean its surface, pretreat the aluminum sheet, dyeing according to requirement after oxidation, then remove the oxide film with oxide film removal solution, place aluminum sheet on the positive pole, finally closing it in the boiling water for about 15 minutes.

Indeed, automotive applications are well-suited for 101 aluminum sheets. This alloy, known for its high-strength composition, boasts impressive formability, corrosion resistance, and exceptional weldability. These attributes render it a favored selection for a range of automotive elements, including body panels, heat shields, and structural parts. Furthermore, the lightweight nature of 101 aluminum sheets aids in enhancing fuel efficiency and overall vehicle performance. In summary, the strength, formability, corrosion resistance, weldability, and lightweight characteristics of 101 aluminum sheets make them a highly suitable choice for automotive applications.

I don't know if the electrons are being passed from my hand to the aluminum or from the aluminum to my hand.Thanks

Aluminum is a metal and a good conductor of electricity. If you touch it, it will get grounded, so it will be neutral. You cannot charge a metal up by touching it with your hand unless you are not grounded yourself. If you are standing on a piece of plastic, say, then it will take whatever charge is on you. If you are positive, it will become positive. If you are negative, it will become negative. But you must be insulated from ground to do that. If you are touching the ground then any charge on the aluminum will just flow out of the metal through you to ground and the aluminum will stay neutral

Maybe you didn't know but in the year 2025 the earth's population will be up to 12 billion people, which is double what we have now. And i am doing a project on Aluminum, and I have to know if there is enough AL for this many people in the year 2025. So will there be enough AL in the world to support us all?

Yes, there will be enough aluminum for us all. Economic theory says so. As demand rises, the cost of aluminum will go up (lowering demand) and more aluminum will be recycled (increasing supply). Our children might not see aluminum foil, but aluminum cans might still be out there :)

The surface cleanliness of aluminum sheet has a significant impact on its adhesion properties. The presence of contaminants, such as dirt, grease, or oxide layers, on the surface can hinder the ability of adhesives to bond effectively with the aluminum sheet. A clean and properly prepared surface is essential for achieving strong adhesive bonds. When the aluminum sheet is free from contaminants, the adhesive can spread evenly and make intimate contact with the surface, resulting in a stronger bond. On the other hand, if the surface is not clean, the adhesive may not be able to adhere properly, leading to weak or unreliable bonds. In addition to contaminants, the presence of oxide layers on the aluminum surface can also affect adhesion properties. Aluminum naturally forms an oxide layer when exposed to air, which can hinder adhesive bonding. This oxide layer needs to be removed or modified to ensure good adhesion. Surface preparation methods like cleaning, degreasing, and treating with chemical solutions can help remove or modify the oxide layer, allowing for better adhesion. Various surface cleaning techniques can be employed to improve the cleanliness and adhesion properties of aluminum sheets. These can include mechanical cleaning methods such as abrasive cleaning or sanding, solvent cleaning, acid etching, or even plasma cleaning. Each method is selected based on the type and extent of contamination present on the surface. In summary, the surface cleanliness of aluminum sheet directly affects its adhesion properties. A clean and properly prepared surface ensures better adhesion by allowing the adhesive to make intimate contact with the aluminum sheet. Therefore, it is crucial to consider and address surface cleanliness when attempting to achieve strong and reliable adhesive bonds with aluminum sheets.

Why must the aluminum oxide be electrolyzed in a molten cryolite solution?

To electrolyse aluminium oxide, it has to be molten. However, the melting point of Al2O3 is extremely high ( 1000°C), and that would make the electrolysis very inefficient. However, Al2O3 dissolves in cryolite at much lower temperatures (lower than 900°C), which makes it a much more viable process.

Is this aluminium plate ceiling dark keel or bright keel?

I see you're a layman...... Where is the ceiling keel now?.... Now they are made of dark keel, so it's better to look at comfort, and we need to go through the lines and some pipes