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| Color Coated Aluminum Coil |
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Posted by: ZellaHyday - 01-18-2022, 09:00 AM - Forum: Selling Leads
- Replies (1)
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【Color Coated Aluminum Coil】
Wanzhi Steel specializes in producing color-coated aluminum coil for Exterior and Interior applications. Color coated aluminum coil is a salt with excellent acid-resistant material. The coating ensures long life. It is an environmentally friendly, fire-resistant property of the green and beautiful decorative. Color coated aluminum coil is widely used in ACP, curtain panel, honey comb panel, shutter, roofing, and most of the decoration areas. Please contact me for the latest price!
[size=1]wade
Email：wade@haomeicn.com[/size]
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| Why aren't ammo casings made out of aluminium instead of brass |
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Posted by: ZellaHyday - 01-13-2022, 07:37 AM - Forum: aluminium faq
- Replies (2)
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Casings have been and still are made of aluminum. The ones that spring to mind are the popular Blazer line by the manufacturer CCI.
The main reason brass is used is the elasticity of the metal allows it to expand and press against the walls of the weapon’s chamber when the bullet is still in the barrel. This seals the breech ensuring hot gas doesn't leak out of the chamber. When the bullet leaves the barrel and pressure drops brass shrinks away from the chamber wall slightly allowing easy ejection of the spent case.
Both aluminum and mild steel will do the same thing. However those spent cases can't be easily reloaded. Brass cases can be.
There's also a sight element of tradition. The first metallic cases were made of brass, albeit with a much higher copper content. Many shooters will only use brass casings. They feel other metals cause excessive wear on the weapon. I personally have never found this to be an issue.
In my experience weapons with fluted chambers actually work better with steel case ammo.
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| The difference between steel shell, aluminum shell and pouch cell batteries |
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Posted by: aluhm - 01-13-2022, 07:34 AM - Forum: Knowledge & Technique
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The shell materials used in lithium batteries on the market can be roughly divided into three types: steel shell, aluminum shell and pouch cell (i.e. aluminum plastic film, soft pack). We will explore the characteristics, applications and differences between them in this article.
Steel–Shell Battery
The steel material for this battery is physically stable with its stress resistance higher than aluminum shell material. It is mostly used as the shell material of cylindrical lithium batteries.
Steel Sheel Battery Structure| Cylindrical battery structure | Grepow
Structure of Steel Sheel Battery
In order to prevent oxidation of the steel battery’s positive electrode active material, manufacturers usually use nickel plating to protect the iron matrix of the steel shell and place a safety device inside the battery cell.
At present, most laptops use steel-shell batteries, but it is also used in toy models and power tools.
Aluminum–Shell Battery
The aluminum shell is a battery shell made of aluminum alloy material. It is mainly used in square lithium batteries. They are environmentally friendly and lighter than steel shell batteries while having strong plasticity and stable chemical properties.
Generally, the material of the aluminum shell is aluminum-manganese alloy, and its main alloy components are Mn, Cu, Mg, Si, and Fe. These five alloys play different roles in the aluminum shell battery. For example, Cu and Mg improve strength and hardness, Mn improves corrosion resistance, Si can enhance the heat treatment effect of magnesium-containing aluminum alloys, and Fe can improve high temperature strength. These elements work together to make aluminum shell batteries more robust.
Structure of Aluminum Shell battery | Grepow
Structure of Aluminum Shell Battery
Aluminum shell batteries are the main shell material of liquid lithium batteries, which is used in almost all areas involved.
Pouch–Cell Battery
The pouch-cell battery (soft pack battery) is a liquid lithium-ion battery covered with a polymer shell. The biggest difference from other batteries is its packaging material, aluminum plastic film, which is also the most important and technically difficult material in pouch cells.
The packaging materials are usually divided into three layers: the outer barrier layer (it is usually an outer protective layer composed of nylon BOPA or PET), barrier layer (middle layer aluminum foil) and inner layer (multifunctional high barrier layer). The materials such as positive electrode, negative electrode, electrolyte, separator and so on are similar to other types of batteries.
Structure of pouch cell battery | Grepow
Structure of Pouch Cell Battery
The hidden danger of lithium batteries is the instability of the material or other unexpected comprehensive factors, which may cause the heat to run out of control and result in gas accumulation in the battery. This is dangerous because steel-shell and aluminum-shell batteries have a fixed space. When the gas inside these batteries expands beyond the limits of this space, the battery will explode. Pouch cells will also bulge up and crack, so they have a higher safety index.
Compared with steel and aluminum batteries (i.e. hard-shell batteries), pouch-cell batteries can have a flexible design, low internal resistance, more cycle time, and high energy density. They are lightweight, and they do not explode easily.
Pouch-cell batteries are 40% lighter than steel-shell lithium batteries of the same capacity and 20% lighter than aluminum-shell batteries. The capacity can be 10-15% higher than steel-shell batteries of the same size and 5-10% higher than aluminum-shell batteries of the same size.
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| What are the common grades of 7 series aluminum plates? |
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Posted by: aluhm - 01-13-2022, 06:26 AM - Forum: aluminium faq
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The representative of seven series aluminum plate is 7075, which mainly contains zinc.
7075 aluminum plate is stress relieved and will not deform and warp after processing. 7075 aluminum plate has high thermal conductivity, which can shorten the forming time and improve the working efficiency.
7075 is mainly characterized by high hardness. It is an aluminum alloy with high hardness and high strength. It is commonly used in the manufacture of aircraft structures and high stress structural parts and molds requiring high strength and strong corrosion resistance.
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| What is a 7-series aluminum alloy? |
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Posted by: aluhm - 01-13-2022, 06:25 AM - Forum: aluminium faq
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7 series aluminum alloys are aluminum magnesium zinc copper alloys, mainly zinc, but sometimes a small amount of magnesium and copper are added. Superhard aluminum alloy contains zinc, lead, magnesium and copper alloys, which is close to the hardness of steel.
7 series aluminum alloys are heat treatable alloys, belonging to superhard aluminum alloys, with good wear resistance, slower extrusion speed than 6 series alloys and good welding performance.
7 series aluminum alloy also belongs to Aviation series, and its application scope: Aviation (aircraft load-bearing components, landing gear), rocket, propeller and aerospace.
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| Aluminum Sheet/Plate . |
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Posted by: ZellaHyday - 01-12-2022, 09:26 AM - Forum: Selling Leads
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I’m Eva from EXCEED METAL Co.,LTD in China, specialize on producing Aluminum Sheet/Plate .
Alloy:1100-6061,
Temper：HO-H3*,TXXX
Width:915mm-2200mm
Length:2000mm-5000mm
Thickness:0.005mm-0.2mm,0.3mm-400mm
Type:Mill Finish,Coated,Embossed,Checker,embossing etc.
Should you have any questions,pls do not hesitate to contact me.
Best regards!
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| Can You Put Aluminum Foil in the Air Fryer? |
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Posted by: ZellaHyday - 01-11-2022, 07:36 AM - Forum: aluminium faq
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Since our air fryers are in pretty heavy rotation, it's a good thing they are pretty darn easy to clean. However, it's pretty tempting to throw a little foil in there to catch any drips and make clean-up even easier, but is that allowed? The short answer is yes.
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| What is the function of aluminum foil? |
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Posted by: aluhm - 01-11-2022, 07:23 AM - Forum: aluminium faq
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At home, people use aluminum foil for food storage, to cover baking surfaces and to wrap foods, such as meats, to prevent them from losing moisture while cooking. People may also use aluminum foil to wrap and protect more delicate foods, like vegetables
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