High-quality aluminum plate decoration material with aluminum alloy content of at least 80%, excellent barrier, easy to process into various shapes, has good toughness, the higher the aluminum content, the better the toughness.
Aluminum material is mainly divided into pure aluminum material and aluminum alloy material. The density of pure aluminum is close to 2700kg / M ~ 3, which is about 35% of the density of iron. Although the strength of pure aluminum is not high, it can be doubled by cold working. Moreover, it can be alloyed by adding magnesium, zinc, copper, manganese, silicon, lithium, scandium, and other elements, and then further strengthened by heat treatment. Its strength is comparable to that of high-quality alloy steel.
High-quality pre-painted aluminum coils--raw materials of aluminum composite materials
Pure aluminum is easy to process and can be cast by any casting method. On the surface of aluminum and alloy, it is easy to form a dense and firm protective film of Al2O3. Only under the intense action of halogen ion or alkali ion can the protective film be destroyed. Therefore, aluminum has good resistance to atmospheric corrosion (including the industrial atmosphere and marine atmosphere) and water corrosion. It can resist the corrosion of most acids and organic matters. The corrosion resistance of aluminum alloy can be improved by using corrosion inhibitors and protective measures.
Aluminum is second only to silver, copper, and gold. At room temperature, the equal volume conductivity of electrical aluminum can reach 62% IACS, if calculated by unit mass conductivity, its conductivity is twice that of copper. The reflectivity of the polished surface of highly reflective aluminum is more than 80%. The higher the purity, the higher the reflectivity. At the same time, aluminum has good reflection performance to infrared rays, ultraviolet rays, electromagnetic waves, and thermal radiation. Nonmagnetic, impact, no spark, which is very valuable for some special purposes, such as instrument materials, shielding materials for electrical equipment, flammable and explosive production equipment, etc. It has sound absorption, which is beneficial to interior decoration and can also be configured as a damping alloy. For high-energy neutrons, radiation-resistant aluminum has the same neutron absorption cross-section as other metals. For neutrons in the low-energy range, its absorption cross-section is small, second only to beryllium, magnesium, zirconium, and other metals.
The surface of the aluminum and its alloy is silvery-white due to its strong reflective ability. High finish and brightness can be achieved after machining. If anodized and colored, not only the corrosion resistance can be improved, but also colorful and dazzling products can be obtained. Aluminum is also an excellent substrate for the production of paint materials. Pure aluminum and antirust aluminum can only be annealed, and quenching aging is the final heat treatment for hard aluminum, forged aluminum, and antirust aluminum.
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