C71500 copper rod production process

Raw material ratio and smelting:

Raw materials include copper, zinc ingots, copper bran, etc., which are mixed in proportion and put into a medium frequency electric furnace to heat to about 1100℃ and melt into liquid metal solution. Slag remover needs to be added during the smelting process to remove impurities, and the production efficiency is ensured by continuous feeding and discharging of the electric furnace.

After smelting, it enters the holding furnace to ensure that the temperature of the copper liquid is uniform and prepare for subsequent molding.

Molding process:

Continuous casting or extrusion: The molten copper liquid is formed into a rod billet through a continuous casting process, or a hot extrusion process (such as the traditional process "ingot-hot extrusion-stretching" or short-process continuous extrusion) is used to improve the material density and surface quality. The mainstream domestic method uses extrusion, combined with automation technology to improve product performance.

Pulling and straightening: The formed copper rod needs to be polished to remove surface debris, and the dimensional accuracy is ensured by straightening.

Heat treatment and processing:

Heat treatment is a key step to improve performance. Through annealing and other processes, the microstructure is optimized to enhance strength, hardness and corrosion resistance.

Cold processing (such as cold rolling and stretching) can further increase the tensile strength to more than 1100MPa while maintaining good ductility (elongation after fracture ≥25%).

Quality inspection:

Follow ASTM B350-98 and GB/T 13808-2009 standards, strictly control chemical composition, mechanical properties and corrosion resistance to ensure product stability.

Product advantages of C71500 copper rod

Excellent mechanical properties:

Tensile strength can reach more than 1100MPa, yield strength is about 414MPa, with high ductility (elongation ≥25%) and toughness, suitable for heavy load and high pressure environment.

Excellent corrosion resistance:

Stable in harsh environments such as seawater, acidic solution, high temperature and high humidity, especially suitable for marine engineering, chemical equipment and other fields.

Good processing and welding performance:

Supports hot and cold processing and a variety of heat treatment processes, and can be made into complex shape parts.

Stable welding performance, argon arc welding, plasma welding and other methods can be used, and the welding quality is reliable.

Thermal conductivity and electrical conductivity:

The thermal conductivity reaches 31W/(m·K), which is suitable for high-temperature scenarios such as heat exchangers and radiators; it has good electrical conductivity and can be used in power transmission equipment.

Wide range of application fields:

It covers industries such as aviation, shipping, petrochemicals, electronics, and electricity. Typical uses include pipelines, valves, heat exchangers, cables, etc.

Standardization and quality assurance:

The production strictly follows international (ASTM) and domestic (GB/T) standards, and provides original material certification to ensure long-term reliability.