C11000 electrolytic copper plate production process

1. Raw material preparation and electrolytic refining

Copper anode plate processing: Using copper anode plates (containing more than 98.5% copper) as raw materials, impurities are removed through electrolytic refining process. Under the action of direct current, the electrolyte (copper sulfate solution) deposits copper ions at the cathode to form high-purity cathode copper (purity of more than 99.99%).

Electrolyte circulation: The electrolyte is heated by circulating through high-level tanks and plate heat exchangers, and byproducts such as copper sulfate and nickel are recovered in the steps of vacuum evaporation and water-cooling crystallization to achieve efficient resource utilization.

Residual anode treatment: The residual anode after electrolysis is returned to the smelting workshop for reuse after washing, and the anode mud is filtered to recover precious metals.

2. Processing and forming

Melting and rolling: The cathode copper is formed after melting and casting, and the surface oxide is removed by milling, and then hot rolling or cold rolling is performed to refine the size.

Stretching process: Use triple stretching, coil stretching and other stretching processes to enhance material strength and toughness to meet different industrial needs.

Annealing treatment: Improve grain structure and mechanical properties through online annealing, and restore ductility after cold processing.

3. Inspection and packaging

Quality inspection: Including spectrometer component analysis, eddy current flaw detection, size inspection, etc., to ensure that the product meets ASTM, GB and other standards.

Finished product storage: After cutting to size and surface treatment, it is packaged and stored, and customized specifications are supported (such as thickness 0.1-120mm, width 2-2500mm).

Our product advantages

1. Material performance advantages

Ultra-high purity: copper content ≥99.90%, impurities (oxygen, sulfur, etc.) are strictly controlled below 0.005%, meeting the high purity requirements of electrical applications.

Excellent conductivity: conductivity ≥100% IACS (International Annealed Copper Standard), some products can reach 101% IACS, suitable for high current density scenarios.

Excellent thermal conductivity: thermal conductivity 394-401 W/(m·K), suitable for heat exchangers, radiators and other thermal management components.

Corrosion resistance: stable in the atmosphere and fresh water, but avoid oxidizing acid environments.

2. Processing and application advantages

Processing performance: supports cold/hot processing, welding, brazing, can be made into various forms such as plates, bars, pipes, etc., adapted to complex industrial needs.

Wide applicability: covers power (cables, busbars), electronics (circuit boards, connectors), chemicals (pipelines, valves), construction (decorative materials) and new energy (solar panels) and other fields.

3. Factory production and service advantages

Standardized production: in line with international standards such as ASTM, DIN, JIS, and SGS certification to ensure global market compatibility.

Flexible supply: providing spot wholesale (such as German Cu-OFE oxygen-free copper, American standard C11000 plate) and customized services, with a short delivery cycle (within 7 working days).

Environmentally friendly and sustainable: electrolyte recycling, residual anode recovery rate of 100%, in line with the concept of green manufacturing.

4. Technical parameter guarantee

Current density control: 100-200 A/m², voltage 0.2-0.5V, optimize electrolysis efficiency.

Stable mechanical properties: tensile strength 200-360 MPa, elongation 2-40%, meet high-precision processing needs