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About Aluminum Rods, All You Want to Know Is Here

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Aluminum rods are often used in our production. Many things we use in our life are related to aluminum rods. However, how much do you know about aluminum rods?


Aluminum rod is a kind of aluminum product. Its surface is rod-shaped, so it is called an aluminum rod. The melting and casting of aluminum rod includes melting, purification, impurity removal, degassing, slag removal and casting process.

Classification of aluminum rods

1. According to the different metal elements contained in the aluminum rod, the aluminum rod can be roughly divided into 8 series:

(1). 1000 series aluminum rods

Main representatives: 1050, 1060, 1100 series. Among all the series, the 1000 series belongs to the series with the most aluminum content. The purity can reach more than 99.00%. Since it does not contain other elements, the production process is relatively simple and the price is relatively cheap. It is the most commonly used series in conventional industries. Most of the circulating on the market are 1050 and 1060 series. 1000 series aluminum rods determine the minimum aluminum content of this series according to the last two Arabic numerals. For example, the last two Arabic numerals of 1050 series are 50. According to the international brand naming principle, the aluminum content must reach more than 99.5% to be qualified products. For the same reason, the aluminum content of 1060 series aluminum rods must reach more than 99.6%.

(2). 2000 series aluminum rods

Main representatives: 2A16 (LY16), 2A02 (LY6). 2000 series aluminum rods are characterized by high hardness, among which the copper content is the highest, about 3-5%. 2000 series aluminum rods belong to aviation aluminum materials, which are not often used in conventional industries.

2024 is a typical hard aluminum alloy in the aluminum-copper-magnesium series. It is a heat-treatable alloy with high strength, easy processing, easy turning, and general corrosion resistance.

After heat treatment (T3, T4, T351), the mechanical properties of the 2024 aluminum bar are significantly improved. The T3 state parameters are as follows: tensile strength 470MPa, 0.2% yield strength 325MPa, elongation: 10%, fatigue strength 105MPa, hardness 120HB.

The main uses of 2024 aluminum rods: aircraft structures, rivets, truck hubs, propeller assemblies and various other structural parts

(3). 3000 series aluminum rods

Main representatives: 3003, 3A21 mainly. my country's 3000 series aluminum rod production technology is relatively good. 3000 series aluminum rods are mainly composed of manganese. The content is between 1.0-1.5, which is a series with better anti-rust function.

(4). 4000 series aluminum rods

The main representative is 4A01. 4000 series aluminum rods belong to the series with higher silicon content. Usually, the silicon content is between 4.5-6.0%. It belongs to building materials, mechanical parts, forging materials, welding materials; low melting point, good corrosion resistance, product description: It has the characteristics of heat resistance and wear resistance

(5). 5000 series aluminum rods

Main representatives: 5052, 5005, 5083, 5A05 series. 5000 series aluminum rods belong to the more commonly used alloy aluminum rod series, the main element is magnesium, and the magnesium content is between 3-5%. Also known as aluminum-magnesium alloy. The main features are low density, high tensile strength and high elongation. Under the same area, the weight of aluminum-magnesium alloy is lower than that of other series, and it is also widely used in conventional industries. In my country, the 5000 series aluminum rod is one of the more mature aluminum rod series.

(6). 6000 series aluminum rods

Main representative: 6061 and 6063 mainly contain magnesium and silicon, so the advantages of 4000 series and 5000 series are concentrated. 6061 is a cold-treated aluminum forging product, suitable for high corrosion resistance and oxidation resistance. Applications. Good workability, easy to coat, and good workability.

6061 aluminum sheet. Various industrial structures with certain strength, weldability and high corrosion resistance are required, such as pipes, rods, shapes for manufacturing trucks, tower buildings, ships, trams, furniture, mechanical parts, precision machining, etc. wood, plate

6063 aluminum plate. Building profiles (aluminum alloy doors and windows are mostly used in this series), irrigation pipes and extruded materials for vehicles, benches, furniture, fences, etc.

(7). 7000 series aluminum rods

Main representative: 7075 mainly contains zinc element. It also belongs to the aviation series. It is an aluminum-magnesium-zinc-copper alloy, a heat-treatable alloy, and a super-hard aluminum alloy with good wear resistance. It basically relies on imports, and my country's production technology needs to be improved.

(8). 8000 series aluminum rods

The more commonly used ones are 8011, which belong to other series, most of which are used for aluminum foil, and are not commonly used in the production of aluminum rods.

2. According to the shape of aluminum rods, it can be divided into:

round aluminum rods, square aluminum rods, hexagonal aluminum rods, trapezoidal aluminum rods, etc.

Application of aluminum rods

1. Aluminum rods are widely used in decoration, packaging, construction, transportation, electronics, aviation, aerospace, weapons and other industries.

2. Aluminum rods for transportation are used as materials for car body structural parts of automobiles, subway vehicles, railway passenger cars and high-speed passenger cars, doors and windows, shelves, automobile engine parts, air conditioners, radiators, body panels, wheel hubs and ships. .

3. Aluminum for printing is mainly used to make various PS plates. Aluminum-based PS plates are a new type of material in the printing industry, which are used for automatic plate making and printing.

4, aluminum alloys for architectural decoration Aluminum alloys are widely used in building frames, doors and windows, ceilings, decorative surfaces, etc. because of their good corrosion resistance, sufficient strength, excellent process performance and welding performance. Such as various building doors and windows, aluminum profiles for curtain walls, aluminum curtain wall panels, profiled panels, checkered panels, color-coated aluminum panels, etc.

The production process of aluminum rods

1. Let's first understand the production process: electrolysis → casting (melting) → extrusion → deep processing, etc...

2. The so-called electrolysis is the process of producing molten aluminum. Only in this process, the level of electrolyte, cell voltage and other parameters are extremely strict to produce molten aluminum that meets the A00 level.

3. The produced aluminum water will be divided into two production modes: casting / casting

Casting: The produced aluminum water is directly transferred to the casting system through the "ladle", directly poured into the melting furnace, and added with different elements and refining agents according to the needs of making alloy labels, and then cast into aluminum rods through the casting platform. Or pour it into aluminum ingots for storage/foreign sales~

Melting and casting: There is no electrolysis production line itself, and aluminum ingots need to be purchased. The rest is the same as casting with an additional heating and melting process.

4. According to the diameter of the extruder, the largest diameter of the aluminum rod in the world is 784mm.

5. The aluminum rods produced are nearly 20 meters long and need to be taken out from the casting well with a professional spreader. And transferred to the sawing machine, sawing in sections.

6. Because the properties of the alloy just cast are not stable enough, it is often put into a homogenizing furnace after sawing for stabilization.

7. Finally, a qualified aluminum rod is produced.

Chemical composition of aluminum rods

Aluminum Al: Allowance

Silicon Si: 0.200.60

Copper Cu: 0.10

Magnesium Mg: 0.450.9

Zinc Zn: 0.10

Manganese Mn: 0.10

Titanium Ti: 0.10

Chromium Cr: 0.10

Iron Fe: 0.35

Why do aluminum profiles use aluminum rods instead of aluminum ingots?

Aluminum profile manufacturers generally use aluminum rods instead of aluminum ingots, because aluminum rods are also a raw material processed from aluminum ingots.

Aluminum rods can be produced directly at the factory, but if they are aluminum ingots, they must be processed. The extrusion machine selects aluminum rods with suitable specifications according to tonnage, which will greatly improve production efficiency.

Most of the aluminum profiles are extruded from aluminum rods. Aluminum profile factories will use aluminum rods instead of aluminum ingots, because aluminum rods are processed from aluminum ingots. Aluminum rods are made of aluminum ingots made by adding a small amount of other metals that meet the national standard after being converted into aluminum water at high temperature. When the aluminum rod is heated and extruded into an aluminum material, the shape of the aluminum rod is conducive to the flow and forming of the metal. The circular shape in the geometric shape is more suitable for extrusion molding than other shapes, so the aluminum rod is used instead of the aluminum ingot. Flat shape, the extrusion cavity is not easy to design and the quality is not uniform after molding. After the aluminum rods are transported to the factory, they can be directly produced on-line. If they are replaced with aluminum ingots, they need to be processed again. Therefore, the use of aluminum rods greatly improves the production efficiency and reduces links to save costs.

Our advantages in exporting aluminum rods

1. Complete specification

Our production line covers various specifications of aluminum rod products to meet different needs. Non-standard aluminum rods and squares can also be customized.

2. Good quality

Our aluminum bar products have passed a number of inspection and certification, strong corrosion resistance, good product processing performance, and excellent oxidation effect after processing.

3. Various forms of sales

Our range of aluminum rods can be purchased as a whole or in pieces.

4. Fast delivery

We have a large-scale aluminum bar product storage base, a huge standing inventory, and a perfect logistics system, which can deliver the products at the fastest speed.

How are aluminum rods packed into containers?

The aluminum rod package is completely packaged and directly loaded into the container for fixation. Now containers can hold anything, even a lot of bulk cargo, liquefied gas tanks, fresh meat, dairy products, alcohol, valuables, firearms, dangerous goods, various chemical reagents, mobile phones, and so on.


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