Production process and product advantages of C61900 copper plate:

1. Production process

Basic processing flow

Hot rolling and cold rolling: The production of copper plate strips usually adopts hot rolling and cold rolling processes. In the hot rolling stage, the plasticity is improved by heating the ingot (930°C solid solution treatment and water quenching), followed by multiple rolling; cold rolling further improves the dimensional accuracy and surface finish.

Annealing and pickling: Annealing is required after cold rolling to eliminate work hardening, and the surface oxide layer is removed by pickling to ensure the ductility and surface quality of the material.

Finishing: Including straightening, milling and other steps to meet the flatness and size requirements of the final product.

Surface treatment technology

Painting process: Some copper plates need to be degreased, washed, sprayed with primer/topcoat and dried to improve corrosion resistance and appearance performance.

Titanium plating carburizing modification: Plasma carburizing after magnetron sputtering titanium film can form a high hardness (more than 300 HV) wear-resistant layer on the surface, significantly reducing the wear rate (up to 90%).

Plasma nitriding: Thermal plasma nitriding is performed on the Cu-Ti gradient film to generate Ti-N compounds and AlCuTi intermetallic phases, improving surface hardness and wear resistance.

Application of advanced equipment

The use of equipment such as the Italian Mino six-roller cold finishing mill and the German Otto Junker annealing furnace ensures the high precision and consistency of the product.

2. Product advantages

Excellent mechanical properties

High strength and wear resistance: tensile strength of 685 MPa, Brinell hardness of 170 HB, and can be further increased to more than 300 HV through surface modification.

Excellent hot processing performance: good plasticity at high temperature, suitable for hot extrusion, forging and stamping.

Cold processing adaptability: cold rolling, bending and other processing can be carried out to meet the needs of complex parts manufacturing.

Outstanding corrosion resistance

High stability in the atmosphere, fresh water and seawater environments, good corrosion resistance to non-oxidizing acids (such as sulfuric acid), but alkaline environments must be avoided.

Electrical and thermal conductivity

The electrical conductivity is better than most alloys, with a thermal conductivity of 58.6 W/(m·K), suitable for electrical switches, contactors and other scenes that require high conductivity.

Economic and substitutable

Compared with tin bronze, stainless steel and other materials, the cost is lower and can replace some expensive alloys.

Special functional potential

It has shape memory effect and can be developed into shape memory alloys.

3. Application fields

Electrical engineering: springs, switch parts, conductive parts.

Mechanical manufacturing: bearings, gears, ship parts.

Aerospace and automobiles: high-stress structural parts and wear-resistant parts.