Production process and product advantages of C16200 copper rod:

1. Production process

Raw material preparation and smelting

The main raw materials include scrap brass, scrap copper, zinc ingots, etc., which are melted at about 1100℃ in an electric furnace, and slag removers are used to remove impurities. Waste gas (containing compounds such as cadmium and lead) will be generated during the smelting process and needs to be treated by a bag filter.

2. Continuous casting and forming

The molten copper liquid enters the continuous casting link after being insulated in an insulation furnace and is formed into a copper rod billet by a traction machine. Developed countries mostly use large-tonnage horizontal continuous casting technology to improve ingot quality and production efficiency.

Hot extrusion and drawing

The copper rod billet after continuous casting is hot extruded by a large-tonnage reverse extruder (such as 2000-ton equipment), and then further processed in combination with combined drawing technology (such as the German Schumacher drawing machine) to ensure the dimensional accuracy and surface finish of the copper rod.

Subsequent processing includes polishing (removing surface debris), straightening, cutting (fixed length) and annealing (such as softening annealing O60 state), and finally the finished product is obtained.

2. Product advantages

High strength and heat resistance

C16200 cadmium bronze has a tensile strength of not less than 196MPa, an elongation of ≥35%, a hardness of ≤75HB, and can still maintain stability at high temperatures, suitable for high pressure and high temperature environments.

Excellent electrical and thermal conductivity

Its electrical conductivity is higher than that of ordinary copper alloys, suitable for high conductivity demand scenarios such as electrical switches and waveguides.

Wear resistance and fatigue resistance

It has anti-friction and aging hardening effects, excellent cold and hot processing performance, and is suitable for high-load mechanical parts.

Diverse specifications and applications

The products cover bars (diameter 1-300mm), plates, strips, pipes, etc., which can meet the needs of multiple industries such as power, ships, and machinery. For example, the hard state (H04) and soft annealing (O60) states are suitable for different processing needs.

Environmental protection and process optimization

Some companies use recycled copper resources for smelting, combined with short-process technology (such as continuous extrusion of copper wire rods) to reduce energy consumption, and reduce cadmium pollution through waste gas treatment.