Production process and product advantages of C14500 copper plate (tellurium copper):

1. Production process

Alloy smelting and composition control

The chemical composition of C14500 is mainly copper (≥99.3%), with 0.4-0.7% tellurium (Te) and trace phosphorus (0.004-0.012%) added. The high conductivity and easy cutting of the material are ensured by precisely controlling the smelting temperature and alloy ratio. Impurity interference should be avoided during the manufacturing process to maintain stable physical properties.

Hot and cold processing technology

Hot processing: Forging, extrusion or hot rolling in the temperature range of 750-875°C is suitable for the production of high-strength parts such as bolts and nuts.

Cold processing: Through drawing, stamping or die-casting, it can be made into profiles such as plates, bars, and pipes to meet the needs of precision parts.

Annealing treatment: Annealing at 420-650°C to eliminate internal stress and improve material ductility.

Precision machining technology

Using CNC turning, milling, drilling and other processes, and taking advantage of its excellent cutting performance (machining efficiency score ≥85%), high-speed automated production is achieved, and the chips are in small pieces, reducing the problem of sticking. Surface treatment includes polishing, electroplating, etc., to further improve the finish.

2. Product advantages

Excellent electrical and thermal conductivity

The electrical conductivity is as high as 85-95% IACS, and the thermal conductivity is 355W/(m·K), which is suitable for high-current connectors, electrical terminals and other scenarios.

Excellent cutting performance

The tellurium element forms an easy-to-break chip structure, and the processing efficiency is 1-2 times that of ordinary copper, and the tool wear is less, and the life is extended by more than 30%.

Corrosion resistance and arc ablation resistance

Excellent corrosion resistance, suitable for marine environment; arc resistance makes it an ideal material for circuit breakers and welding nozzles.

Diverse processing adaptability

Supports a variety of cold and hot processing methods such as forging, casting, extrusion, etc., and can produce complex special-shaped parts, such as aviation connectors, automotive parts, etc.

Significant economic benefits

Reduce burr generation and reduce subsequent deburring costs; high surface finish, save finishing steps, and reduce overall production costs.

3. Typical application areas

Electronic appliances: new energy vehicle charging pile connectors, solar power station connectors.

Machinery manufacturing: precision gears, arc-resistant switches.

Welding equipment: plasma cutting machine nozzles, welding electrodes.

Plumbing pipe fittings: high-grade corrosion-resistant pipes and accessories.