Phos Copper silver brazing alloy is a composite of silver, copper, and phosphorus, with the silver content typically ranging from 2% to 15%. It is an alloy material that achieves high-strength joining of non-ferrous metals without the need for flux.
phos copper silver brazing alloy exhibits excellent flowability within its melting point range. For example, the 15% Ag grade has a solidus point of 645°C and a liquidus point of 800°C. This short melting range facilitates rapid brazing of the brazing material within capillary crevices, ensuring a dense joint and improving weld strength and durability.
Different grades of Phos Copper silver brazing alloy have low and stable melting points. For example, the 5% Ag grade has a melting point of approximately 720°C. This lowers the welding temperature compared to traditional copper-phosphorus alloys, making it suitable for precision brazing of heat-sensitive materials or complex parts, while minimizing material deformation caused by thermal stress.
Due to phosphorus's inherent deoxidizing properties, ideal brazing results can be achieved without the addition of any flux when brazing copper and copper alloys. This avoids corrosion and contamination caused by residual flux, making it particularly suitable for refrigeration systems and medical equipment manufacturing, where cleanliness is critical.
Phos Copper Silver Brazing Alloy forms a strong metallurgical bond with the copper substrate during brazing, offering high shear strength and achieving a typical weld strength exceeding 400 MPa. Grades with higher silver content offer superior shock, vibration, and fatigue resistance, making them suitable for joints subjected to dynamic loads.
A variety of grades, including Ag2%, Ag5%, and Ag15%, are available to meet diverse welding processes and operating conditions. For example, Ag2P copper-silver-phosphorus brazing alloy is suitable for low-cost, high-volume industrial welding, while Ag15P is more suitable for welding critical components requiring high strength and conductivity.
In air conditioning copper piping systems, Phos Copper Silver Brazing Alloy is widely used for brazing copper pipes, both between pipes and between pipes and manifolds. Its excellent fluidity and low melting point not only improve assembly efficiency but also effectively prevent high-temperature damage to the pipes. It is often used by manufacturers such as Gree and Midea.
In the welding of compressor copper connectors to winding lead wires, Phos Copper Silver Brazing Alloy provides excellent electrical conductivity and weld crack resistance, ensuring long-term stable operation. This material is widely used in compressor assembly processes for brands such as Panasonic and Hitachi.
In connecting electric vehicle battery management systems to high-voltage cables, Phos Copper Silver Brazing Alloy is used to securely braze copper conductors. Its flux-free process significantly reduces the risk of insulation contamination, making it a standard material of choice for electric vehicle brands such as BYD and NIO.
Include welding copper heating elements and electrical contacts in appliances such as electric kettles, coffee makers, and microwave ovens. The brazing seam is stable, heat-resistant, and meets EU RoHS environmental requirements. Phos Copper Silver Brazing Alloy is commonly used in the OEM production lines of international brands such as Philips and Bosch.
Medical devices require extremely high weld stability and metal cleanliness. Phos Copper Silver Brazing Alloy provides a flux-free, dense, and crack-free solution. It is suitable for precision joining copper components in devices such as blood analyzers and X-ray imaging systems. Partner brands include GE Healthcare and Siemens Healthineers.
Previous: Silver Copper Brazing Rod
Next: Phos Copper Brazing Rod
Mobile Phone:
Phone:
Contact Now