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В aluminum sheet size depends entirely on its thickness, ширина, длина, and intended application, which can range from a small craft project to the skin of an airplane.

Aluminium Sheet Size

The size of aluminum sheets varies widely depending on the application and manufacturer. Однако, there are common standard dimensions and thicknesses.

Common Standard Sizes (Длина x ширина):

In Imperial measurements:

4 feet x 8 ноги (48″ x 96″)

4 feet x 10 ноги (48″ x 120″)

5 feet x 10 ноги (60″ x 120″)

Also smaller sizes like 12″ x 12″, 12″ x 18″, 18″ x 24″, 36″ x 72″ are available.

In Metric measurements:

1200 mm x 2440 миллиметровый

1200 mm x 3000 миллиметровый

1500 mm x 3000 миллиметровый

Other common metric sizes include 2000 x 1000 миллиметровый, 2500 x 1250 миллиметровый, 3000 x 1250 миллиметровый, 3000 x 1500 миллиметровый, and larger up to 4000 x 2000 mm or 12000 mm in length for plates.

Common Thicknesses:

Aluminum sheet thickness is often measured in millimeters (миллиметровый) or by gauge number (though gauge numbers can vary between materials).

Typical thicknesses range from:

Very thin: 0.2 мм до 0.5 миллиметровый (например, for lighting fixtures, computer panels)

Common uses: 0.8 миллиметровый, 1.0 миллиметровый, 1.2 миллиметровый, 1.5 миллиметровый, 2.0 миллиметровый, 2.5 миллиметровый, 3.0 миллиметровый, 4.0 миллиметровый, 5.0 миллиметровый, 6.0 миллиметровый (often used for general construction, enclosures, vehicle bodies)

Thicker plates: 8.0 миллиметровый, 10.0 миллиметровый, 12.0 миллиметровый, up to 50 mm or even 500 mm for very thick plates (used in heavy machinery, marine components, сосуды под давлением).

Important Considerations:

Alloy and Temper: The specific alloy (например, 1050А, 3003, 5052, 6061, 7075) and temper (например, H14, H32, T6) will affect the properties of the sheet, such as its strength, пластичность, and corrosion resistance.

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For more detailed information about aluminum sheet sizes click to visit: https://www.dw-al.com/a/news/aluminium-sheet-size.html

The lifespan of a Печатный алюминиевый лист can vary significantly depending on several factors, including the printing process, качество используемых материалов, and environmental conditions.The lifespan of a printed aluminum sheet can range from 3 years to over 100 годы.

How long does a printed aluminum sheet last

1. Printing Process:

Dye-sublimation (most common for “metal prints”): This is often considered the most durable method for printing on aluminum. The dyes are infused into a special coating on the aluminum sheet using heat and pressure. This creates a highly scratch, воды, and fade-resistant print. Dye-sublimated metal prints can last anywhere from 60 Для 100 years without significant fading, with some studies showing them outlasting archival photographic prints by a factor of four. ChromaLuxe panels, a leading brand for dye-sublimation, are rated for 65+ годы.

Direct Printing (UV printing): In this method, ink is printed directly onto the surface of the aluminum. While it can produce vibrant prints and allow for post-printing effects, direct printing is generally less durable than dye-sublimation. The inks are on the surface, making them more susceptible to scratching and fading over time.

They are often suitable for indoor and semi-outdoor applications.

Screen Printing: This process can offer good durability on metal, lasting up to 12-13 years in some cases.

Etching and Metalphoto: These are highly durable processes for metal nameplates and can last up to 30 годы.

2. Качество материала:

Aluminum Quality: High-quality aluminum (like aluminum alloys or composite panels like Dibond, which has two aluminum sheets with a plastic core) is less likely to degrade, warp, bend, or rust over time. Thicker aluminum boards are also more durable.

Protective Coatings/Laminates: Many printed aluminum sheets, especially dye-sublimated ones, have a protective top coat with UV-resistant qualities. This significantly slows down fading and provides resistance to scratches and moisture. Anti-graffiti laminates can further extend the life of outdoor prints.

Ink Quality: UV-resistant inks are crucial for longevity, especially if the print will be exposed to sunlight.

3. Условия окружающей среды:

Direct Sunlight: Prolonged exposure to direct sunlight and its UV rays is the biggest enemy of printed materials, including aluminum prints. It can cause inks to fade and the metal to become brittle. While good quality prints with UV coatings will resist fading for a long time, avoiding direct sunlight will maximize their lifespan.

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For more detailed information about how long the printed aluminum sheet can be used click to visit: https://www.dw-al.com/a/news/printed-aluminum-sheet-life.html

Carbon-carbon (C-C) composites are renowned for their exceptional thermal properties, which make them ideal for high-temperature and demanding applications such as aerospace components (например, brake discs for aircraft, rocket nozzles, re-entry nose tips) and industrial furnaces. These properties are highly dependent on the manufacturing process, fiber type, orientation, and matrix density.

Carbon-carbon Composites Thermal Properties

High-Temperature Stability:

C-C composites retain their mechanical properties and dimensional stability at extremely high temperatures, often exceeding 2000℃(3632℉) and even up to 3000℃(5432℉) in non-oxidizing atmospheres. This is significantly higher than most metals and other advanced ceramics.

Their excellent thermal shock resistance is a major advantage, allowing them to withstand rapid and extreme temperature changes without significant damage.

Thermal Conductivity:

C-C composites can exhibit a wide range of thermal conductivities, from good insulators to excellent conductors, depending on their fabrication and microstructure. Этот “tailorable” conductivity is a significant advantage.

Anisotropy: Thermal conductivity is often anisotropic, meaning it varies with direction.

In-plane (along the fiber direction): Values can range from approximately $10 \text{ W/(м·К)}$ Для $233 \text{ W/(м·К)}$. Graphitized fibers contribute to higher in-plane conductivity.

Through-the-thickness (perpendicular to the fiber direction): Values are typically lower, Эта цена также Рыночные условия также являются относительно распространенным ценовым диапазоном. $2 \text{ W/(м·К)}$ Для $21 \text{ W/(м·К)}$.

Temperature Dependence: Thermal conductivity generally decreases with increasing temperature, although values can be fairly stable at very high temperatures.

Compared to other materials: While a simple carbon fiber-epoxy composite might have thermal conductivity 40 times less than aluminum and 10 times less than steel, advanced C-C composites, particularly those with highly graphitized matrices, can achieve conductivities comparable to or even exceeding some metals.

Coefficient of Thermal Expansion (CTE):

C-C composites generally possess a very low coefficient of thermal expansion, meaning they exhibit minimal dimensional changes when subjected to temperature fluctuations. This contributes to their excellent dimensional stability and thermal shock resistance.

Anisotropy: Like thermal conductivity, CTE in C-C composites is often anisotropic.

In the fiber direction, carbon fibers can even have a negative CTE, meaning they slightly contract when heated. This unique property, combined with the matrix, can result in very low or even near-zero overall CTE in certain directions.

Typical ranges for linear CTE are from approximately −1× 10⁻⁶ K^-1Для +8×10⁻⁶ K^-1

The CTE is influenced by the fiber type, weave architecture, matrix density, and the degree of graphitization.

Specific Heat Capacity:

The specific heat capacity of carbon-carbon composites is generally comparable to that of graphite, especially at temperatures above 340 К.

Typical values are around$760 \text{ J/(кг·К)}$ ($0.18 \text{ BTU/(lb·^\circ F)}$) at room temperature, which can increase with temperature.

Factors Influencing Thermal Properties:

The thermal properties of C-C composites are not fixed values but vary significantly based on:

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For more detailed information on the thermal properties of carbon-carbon composites and the factors affecting them, нажмите, чтобы посетить: https://www.czgraphite.com/a/news/carbon-carbon-composites-thermal-properties.html

Graphite is the raw substance. А carbon composite is the high-tech, engineered final product that uses a special fibrous form of graphite to achieve its incredible performance.While both carbon composites and graphite are made of carbon, they are fundamentally different in their structure, properties, и приложения.

Difference Between Carbon Composites and Graphite

Here’s a breakdown of the key distinctions:

Graphite:

Определение: Graphite is a naturally occurring crystalline allotrope (form) of the element carbon. It’s one of the most stable forms of carbon under standard conditions.

Состав: It has a layered atomic structure. Each layer consists of carbon atoms arranged in a hexagonal lattice (like a honeycomb). These individual layers are called graphene. The layers are held together by weak van der Waals forces, allowing them to slide easily over each other.

Properties:

Softness: Due to the weak bonding between layers, graphite is very soft (Mohs hardness of 1-2) and has lubricating properties (which is why it’s used in pencils).

Conductivity: It’s an excellent conductor of both heat and electricity, especially along the planes of its layers.

Высокая температурная стойкость: It can withstand very high temperatures (sublimates around 3,600°C) in inert atmospheres.

Density: Relatively low density.

Приложения:

Lubricants

Pencil lead

Electrodes in batteries and industrial furnaces

Refractory materials (materials resistant to high temperatures)

Thermal management (heat sinks)

Carbon Composite (often Carbon Fiber Reinforced Polymer – CFRP):

Определение: A carbon composite is an engineered material created by combining strong carbon fibers (a form of carbon) with a binding matrix material, typically a polymer resin (like epoxy). It’s a type of composite material, meaning it’s made from two or more distinct materials that, when combined, produce properties superior to the individual components.

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More detailed information about the difference between carbon composites and graphite can be found by visiting:https://www.czgraphite.com/a/news/difference-between-carbon-composites-and-graphite.html