Production process and product advantages of C18200 copper strip and copper coil:

1. Production process

Melting and casting process

Use coreless industrial frequency furnace for smelting to ensure uniform distribution of alloy components (such as Cr), and optimize material properties through quenching and aging treatment.

The specifications of ingots are usually 15~18×300~450×Lmm, with a maximum single weight of 6.5 tons, and enter subsequent processing after strict inspection.

Processing process

Continuous extrusion method: After continuous extrusion and deformation, the Φ20 copper rod is cooled by circulating water to generate billets, which are suitable for the production of precision products such as copper strips for new energy vehicle batteries.

Rolling process: including milling, rough rolling, intermediate annealing, finishing rolling, finished product annealing and other steps. Key equipment such as Japan Morita milling machine and Germany Otto Junker annealing furnace ensure that the product surface is high in smoothness and thickness accuracy of ±0.002mm.

Surface treatment: including pre-degreasing, pickling, passivation, brushing, grinding and drying to remove impurities and improve surface quality.

Application of advanced technology

Using three processes of "horizontal continuous casting-cold rolling", "vertical semi-continuous casting-hot rolling-cold rolling" and "upward continuous casting extrusion" to meet the needs of different specifications.

Italian Mino six-roller cold finishing mill and other equipment achieve high-precision control, with a minimum thickness of 0.035mm.

2. Product advantages

Excellent mechanical properties

High strength and wear resistance: high tensile strength, suitable for die discharge machining, resistance welding electrodes and other scenes, can be used at high temperatures of 100℃~250℃ for a long time.

Anti-stress relaxation: good thermal stability, wide aging range, high yield, especially suitable for applications with high requirements for upright performance.

Excellent conductivity and corrosion resistance

Electrical conductivity ≥80%IACS, meeting high conductivity requirements, such as electrical switches, cable connectors, etc.

Strong corrosion resistance, surface passivation treatment further improves the oxidation resistance and corrosion resistance.

Environmental protection and versatility

Environmentally friendly and non-toxic: in line with food hygiene standards, can be used for food molds, sanitary ware molds, etc.

Good electroplating performance: high surface finish, suitable for precision electroplating processing.

Wide range of applications

Covering molds (cores, injection nozzles), electronic components (switch contacts, springs), copper strips for new energy vehicle batteries and welding electrodes, etc.