Overview

Palladium Spooled Wire

Advantages

• Excellent catalytic performance, particularly in reactions such as hydrogenation, dehydrogenation, and oxidation.
• Excellent electrical properties, with low and stable contact resistance, reduce contact losses and ensure stable current transmission.
• Palladium is highly resistant to corrosive media such as acids, alkalis, and salts, and maintains stable performance in humid, high-temperature, or corrosive environments.
• Palladium has a high melting point (approximately 1554°C), making it resistant to melting and deformation at high temperatures, maintaining its excellent mechanical properties.
• Palladium exhibits excellent ductility and plasticity, allowing it to be processed into wires of varying diameters and lengths through processes such as drawing and rolling.

Dimension

Application

1. Electronics Industry: Palladium spooled wire not only serves as contact points in relays and switches, ensuring reliable performance of electronic components during high-frequency switching, but also as signal transmission leads in precision sensors such as temperature and pressure, ensuring signal accuracy in complex environments.
2. Exhaust Gas Purification: It is a key catalytic material in automotive three-way catalytic converters, efficiently catalyzing carbon monoxide, hydrocarbons, and nitrogen oxides in vehicle exhaust, converting them into harmless carbon dioxide, water, and nitrogen, thereby reducing air pollution.
3. Chemical Industry: Palladium spooled wire is primarily used for catalytic reactions in fields such as pharmaceutical synthesis and fragrance preparation. In particular, it can serve as a catalyst carrier or electrode material in fuel cells, promoting the hydrogen-oxygen reaction to generate electricity. It also exhibits resistance to carbon monoxide poisoning, improving battery stability.
4. Aerospace: It can be used in high-temperature sensor leads for aerospace engines and heating element connectors for high-temperature furnaces, ensuring stable mechanical and electrical properties under extreme temperatures.
5. Medical industry: In certain implantable medical devices (such as the electrode lead coating of pacemakers), palladium wire (or palladium alloy) can reduce the body's rejection reaction and ensure the long-term and stable operation of the equipment due to its good biocompatibility and resistance to corrosion by body fluids.

Process

① High-purity palladium ingots (≥99.95%) are typically used as the raw material. When producing alloy palladium wire (such as palladium-silver or palladium-iridium alloys), palladium and other metal raw materials must be mixed in appropriate proportions.

② Alloy ingots with uniform composition are obtained through vacuum induction melting or arc melting.

③ The melted ingots are forged while hot to form bars or wire blanks in preparation for subsequent drawing.

④ Hot or cold drawing using carbide dies produces wire with high-precision diameters and smooth surfaces.

⑤ Heat treatment (annealing or aging) eliminates work hardening, refines grain size, and improves ductility.

⑥ Surface cleaning and straightening are followed by comprehensive quality testing to ensure they meet stringent customer requirements.

Pictures