Pure copper plate GB 2040–89
Pure copper is a malleable, ductile, and corrosion resistant metal that is used for a variety of industrial and commercial applications. Copper can be used to create electrical components, decorative objects and structures, plumbing fixtures and pipes, and electronics. Pure copper plate is a flat piece of material made from pure copper that is used mainly in electrical and electronic applications.
GB2040–89 is a Chinese standard for the production of copper plates. GB2040–89 has strict requirements for material purity, physical and mechanical properties, production process, and surface condition for copper plates.
The raw material for the production of pure copper plates is an electrolytic copper product with a purity of at least 99.90%. The chemical composition of the material must meet the requirements of GB2040–89, with a minimum content of copper of 99.90%, a maximum content of iron of 0.03%, and a maximum content of lead of 0.003%. The product also meets parameters such as electrical conductivity and tensile strength, as specified in GB2040–89.
The production process for pure copper plates involves a series of steps, including hot and cold rolling. During hot rolling, the hot-rolled material is formed into a plate with a specific thickness of 1.6–3.2mm and a width of 1000mm. The material is then cooled and subjected to hot working to improve the physical and mechanical properties of the material. Finally, the plate is cold rolled, annealed, and pickled before being trimmed and sent to final inspection.
The surface condition of GB2040–89 pure copper plates is based on manufacturing processes, such as surface milling and coiling. The surface is normally clean and free from corrosion, rolling marks, mechanical imperfections, and discoloration. The surface finish provides a smooth metallic appearance and a high degree of reflectivity.
GB2040–89 pure copper plates are widely used in the electrical and electronic industries for various components and applications. The material is ideal for producing electrical components such as terminals, connector pins, wiring devices, and boards. In addition, the plates can also be used for purposes such as thermal conductivity, electrical conductivity, and noise reduction.
Overall, GB2040–89 pure copper plate is a versatile material that can be used in a wide range of industrial and commercial applications. The material is well suited for electrical components, wiring devices, and structural components. The material is strong, durable, and corrosion resistant, making it a cost-effective solution for many manufacturing requirements. The material is easy to work with, and its high reflectivity adds aesthetic value.
