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    • Rame - Schiuma

      Known to ancient civilisations. Copper is a reddish coloured metal which is malleable and ductile. It has excellent thermal and electrical conductivities and good corrosion resistance. It is found in sulphide ores and as carbonate, arsenide and chloride (abundance in the Earth's crust is 50 ppm). Extraction of the metal involves roasting the ore to produce the oxide, followed by reduction and purification by electrolysis. The element is inert to non-oxidising acids but reacts with oxidising agents. In air, it will weather to produce the characteristic green patina of the carbonate. Copper will combine with oxygen on heating to produce CuO at red heat, and Cu₂O at elevated temperatures. Pure copper has an electrical conductivity second only to that of silver and hence its main application is in the electrical industry. Copper is also the basis of many important alloys (e.g. brass, bronze and aluminium bronze) and has been traditionally considered to be one of the coinage metals, along with silver and gold, but being more common, is the least valued. It is one of the first metals ever to have been worked by man and is thought to have been mined for more than 5000 years.Schiuma - La struttura permeabile e a bassa densità delle cellule e i legamenti continui offrono un rapporto elevato tra aria e volume, e inoltre un rapporto elevato tra resistenza e peso.

    6 risultati

    Prodotto CU00-FA-000104 Rame - Schiuma - Thickness 4mm Porosity 63% - Diametro 23mm -
    Prodotto CU00-FA-000114 Rame - Schiuma - Thickness 4mm Porosity 63% - Diametro 23mm -
    Prodotto CU00-FA-000105 Rame - Schiuma - Thickness 5mm Porosity 63% -- Size 50mm x 64mm
    Prodotto CU00-FA-000115 Rame - Schiuma - Thickness 5mm Porosity 63% -- Size 50mm x 64mm
    Prodotto CU00-FA-000141 Rame - Schiuma Purity 99.9% Thickness 6.35mm - Pori/cm 16 Diametro 6mm -
    Prodotto CU00-FA-000133 Rame - Schiuma - Thickness 6.35mm Porosity 94% Pori/cm 16 - Size 150mm x 150mm
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