Characteristics and application of high performance tellurium copper
Tellurium copper core characteristics
High electrical and thermal conductivity: tellurium copper conductivity can reach more than 90% IACS, close to the level of pure copper, while having excellent heat dissipation capacity, suitable for high-load electrical components.
Excellent machining performance: The addition of tellurium significantly improves cutting performance, machining complex precision parts and reducing tool wear.
Resistance to softening and high temperature: the strength is still maintained in high temperature environment, and the long-term working temperature can reach 200°C or more.
Corrosion resistance and oxidation resistance: The surface forms a dense oxide film, resistant to moisture, acid and alkali environment corrosion.
Main application field
Electronic connector: 5G base station, new energy vehicle battery connection piece
Switch components: relay, circuit breaker contact
Welding electrode: resistance welding head, spot welding electrode
Heat conduction element: radiator substrate, semiconductor package
Why copper tellurium?
Compared to ordinary copper alloys, tellurium copper can reduce machining time by more than 30% in precision machining scenarios, while extending part life by 2-3 times. Its balanced cost performance meets the development trend of lightweight and efficient industrial equipment.
FAQ
Tellurium copper frequently asked questions
Q1: What are the main components of copper tellurium?
A: Tellurium copper usually contains more than 99% copper (Cu), tellurium (Te) 0.4-0.7%, some models add phosphorus (P) to improve the deoxidation effect.
Q2: Does the electrical conductivity of copper tellurium decrease due to processing?
A: Through the precise temperature-controlled thermal treatment process, copper tellurium can recover more than 95% conductivity after cold processing to ensure stable performance.
Q3: What surface treatments is tellurium copper suitable for?
A: Support silver plating, nickel plating, passivation and other processing, it is recommended to degreasing and pickling before pretreatment to improve adhesion.
Q4: How to distinguish copper tellurium from copper chromium zirconium?
A: Tellurium copper has better cutting ability and lower cost, while chromium zirconium copper (CuCrZr) focuses on high-strength wear resistance scenarios.
Q5: What is the corrosion resistance of copper tellurium?
A: Corrosion resistance in conventional industrial environment is better than pure copper, but strong acid and alkali environment is recommended to use with surface coating.
Q6: What parameters are required when ordering copper tellurium?
A: It is necessary to specify the alloy grade (such as C14500), state (hard/semi-hard), dimensional tolerance and testing standard (ASTM/GB).