C96900 copper rod is a copper-nickel-tin alloy material. Its production process and product advantages are as follows:

Production process

Raw material processing and smelting

C96900 uses copper, nickel and tin as the main alloying elements. After preheating, the raw materials (including electrolytic copper, nickel, tin ingots, etc.) are heated to about 1100℃ in an electric furnace or induction furnace to melt, and slag remover is added to remove impurities. Some processes directly use scrap copper as raw material, and the purity is ensured by sorting, radiation detection and other steps.

2. Forming process

Extrusion and forging: After the smelted copper liquid is heat-insulated, it is plastically deformed by a reverse extruder (such as 38MN-level equipment) to form a high-density copper rod blank. The extrusion force covers the production of multiple grades to ensure product strength.

Continuous casting: Some processes adopt the "large-tonnage electric furnace smelting-submerged liquid transfer-multi-head multi-stream horizontal continuous casting" technology. A single furnace can simultaneously cast 64 products of different specifications, and the efficiency is more than 10 times higher than that of traditional processes.

Heat treatment strengthening

The core process is spinodal decomposition, which forms a nano-scale phase separation structure inside the alloy through specific heat treatment, greatly improving the strength. This technology makes C96900 stronger than traditional beryllium copper, while avoiding the use of toxic beryllium elements.

Subsequent processing

The formed copper rod needs to go through steps such as drawing, straightening, and cutting, and the surface finish and dimensional accuracy are improved through finishing processes such as rolling, stretching, and annealing. Some processes use automated wire coil collection technology to reduce surface damage and improve the yield rate.

Product advantages

Excellent mechanical properties

High strength: Spinodal decomposition heat treatment significantly improves the tensile strength, which is better than ordinary copper alloys.

High hardness and wear resistance: Suitable for applications in high friction environments, such as bearings, gears, etc.

Corrosion resistance and erosion resistance

Copper-nickel-tin alloys show good corrosion resistance in seawater and chemical media, and are suitable for ships, petrochemicals and other fields.

Non-magnetic and conductive

C96900 is a non-magnetic material, while retaining a high conductivity (although slightly lower than beryllium copper), suitable for non-magnetic components in electronic and power equipment.

Environmental protection and safety

It contains no beryllium element at all, which solves the toxicity problem in beryllium copper processing and meets environmental protection regulations.

Production efficiency and economy

Using continuous extrusion, multi-head continuous casting and other technologies, the production efficiency is more than 10 times higher than that of traditional processes.

Directly use scrap copper as raw material to reduce production costs.

Wide application

Applicable to high-demand fields such as aerospace, marine engineering, and precision instruments, and can be processed into various forms such as bars, pipes, and plates.