C12000 copper rod is a low-phosphorus deoxidized copper material, and its production process and product advantages are as follows:

1. Production process

Raw material processing and smelting

The raw materials are waste copper, electrolytic copper, etc., which are melted at a high temperature of 1100℃ by an industrial frequency furnace or a medium frequency furnace, and a slag remover (such as quartz flux) is added to remove impurities.

Deoxidation treatment is the core step. By adding phosphorus elements (such as P≤0.004%) for deoxidation, the fluidity and organizational density of the copper liquid are improved, and the oxygen content is reduced.

Continuous casting and molding

Horizontal continuous casting technology or submerged liquid transfer multi-head multi-stream continuous casting is used to achieve efficient and continuous production. For example, Ningbo Jintian Copper's horizontal continuous casting technology can produce 64 copper rods of different specifications at the same time, with an efficiency increase of more than 10 times compared with traditional processes.

After the molten copper liquid is treated in an insulation furnace, it is formed by a traction machine or an extruder. Hailiang Co., Ltd.'s 38MN reverse extruder can cover the production of multiple brands and improve the density and surface smoothness of the product.

Subsequent processing

Includes processes such as drawing, stretching, pickling, and annealing. For example, mechanical properties are improved by cold rolling or cold stretching, and annealing eliminates internal stress and controls grain size (20-40μm) to ensure material stability.

Scraps and slag are recycled, such as cutting waste is returned to the furnace for remelting, and slag is partially reused after screening to reduce resource waste.

2. Product advantages

Excellent physical properties

High electrical conductivity and thermal conductivity: C12000 copper purity ≥99.9%, electrical conductivity ≥100% IACS, excellent thermal conductivity, suitable for electrical components and heat exchange equipment.

Corrosion resistance: Low-phosphorus deoxidation process reduces grain boundary oxidation and enhances corrosion resistance in reducing atmospheres and extreme environments, suitable for ships, oil pipelines and other scenes.

Outstanding processing performance

Good cold bending and welding performance, can be easily processed into complex shapes such as pipes and wires, meeting precision manufacturing needs.

After annealing, it has excellent ductility (such as tensile strength ≥ 200MPa, elongation ≥ 35%), suitable for cold pressing.

Environmental protection and safety characteristics

Antibacterial property: Naturally inhibits the growth of bacteria and fungi, suitable for medical facilities and drinking water systems.

Recyclability: The material can be fully recycled, reducing the carbon footprint, in line with the environmental protection trend.

Wide application

Covering electrical, HVAC, bathroom valves, industrial machinery and other fields. For example, high-density copper rods are used for precision valve manufacturing, and thin-walled copper tubes are used in refrigeration systems.