Production process and product advantages of C17510 copper tube:

1. Production process

Material preparation

C17510 belongs to nickel-beryllium-copper alloy (Cu-Ni-Be), whose basic components include copper (97.8%), beryllium (0.2-0.6%), nickel (1.4-2.2%) and a small amount of cobalt, silicon and other elements. The raw materials are smelted in an industrial frequency furnace (about 1200℃) and horizontally cast, and then water-cooled to 50℃ for initial solid solution.

Hot working and cold working

Hot working: Hot forming processes such as rolling and forging can be carried out in the temperature range of 648-885℃, which is suitable for the initial processing of bars, plates and pipes.

Cold working: It has excellent cold working properties, including drawing, bending, stamping, etc., and is especially suitable for manufacturing thin-walled (≤0.5mm) and small-diameter (≤5mm) precision copper tubes.

Welding and forming

Recommended welding processes include gas shielded arc welding, brazing, spot welding and seam welding, while oxyacetylene welding is explicitly prohibited because it can easily cause material embrittlement.

Subsequent processes need to be combined with precision processing such as planetary rolling, triple drawing, and disk drawing, and online annealing (such as 500-600℃ aging treatment) is used to improve material strength and conductivity.

Surface treatment and testing

Milling, polishing and surface cleaning processes are used to ensure the smoothness and corrosion resistance of the copper tube, and the quality of the finished product is guaranteed through processes such as rewinding and flaw detection.

2. Product advantages

High strength and high hardness

The tensile strength can reach 760-965 MPa and the hardness can reach HRC 38-44, which is better than ordinary copper alloys and is suitable for harsh working conditions such as high-pressure CO₂ refrigerants.

After precipitation heat treatment, the yield strength is increased to 1035 MPa, and the elongation remains above 1%, which meets the structural stability under the trend of thin-walling.

Excellent electrical and thermal conductivity

The electrical conductivity can reach 45-60% IACS (International Annealed Copper Standard), and the thermal conductivity is 105 W/(m·K), which is 40-60% higher than ordinary copper, suitable for high current transmission and efficient heat dissipation scenarios.

Corrosion and wear resistance

It remains stable in seawater, acidic environment and high temperature, with better corrosion resistance than chrome zirconium copper, and outstanding wear resistance, suitable for high-frequency friction parts such as molds and electrodes.

Superior processing performance

The cold processing rating is "excellent", which can easily realize small diameter (such as less than 5mm) and complex tooth processing, reducing the cost of heat exchangers by about 20%.

Environmental protection and energy saving

The small diameter design reduces the refrigerant filling amount, which meets environmental protection requirements; the material can be recycled and reused, and the waste gas and waste liquid in the production process are treated and reused.

Applicability to special scenarios

It is non-magnetic and does not produce sparks when impacted, suitable for explosion-proof tools, aerospace and precision electronics.