Phosphor Bronze Woven Wire Mesh

Phosphor Bronze Woven Wire Mesh

Phosphor bronze woven mesh is a metal mesh made of copper, tin (5% to 8 %) and phosphorus (0.03 % to 0.35%) alloy wires. The addition of tin enhances the corrosion resistance and strength of the mesh, while the addition of phosphorus increases its wear resistance and rigidity. Phosphor bronze woven mesh can be added with other elements to give it unique characteristics depending on the specific application.

Phosphor bronze is the "performance champion" among copper-based alloys. The excellent performance of phosphor bronze woven mesh comes from this:

1. Ultra-high electrical and thermal conductivity: The copper-based properties make its electrical/thermal conductivity second only to pure copper and far superior to stainless steel.

2. Excellent elasticity and fatigue resistance: The addition of phosphorus significantly improves the elastic limit and fatigue resistance of the alloy. At the same time, it can recover to its original shape after repeated bending, vibration or pressure, and is not prone to permanent deformation (plastic deformation).

3. Excellent wear resistance: The hardness is higher than pure copper and brass, and the friction and wear resistance is outstanding.

4. Good corrosion resistance: Resistant to corrosion by atmosphere, seawater, fresh water, various non-oxidizing acids (such as dilute sulfuric acid, acetic acid), salt solutions, and organic media . Its oxidation resistance in dry air is better than that of pure copper (a dense oxide film is formed on the surface). It is not resistant to ammonia, ammonium salts, and strong oxidizing media (such as nitric acid).

5. Anti-stress relaxation: It can maintain stable contact pressure under long-term stress or high temperature (critical for electrical connection).

6. Non-magnetic: Suitable for situations where magnetic interference needs to be avoided.

7. Good processability and weldability: easy to draw, weave, stamp and solder.

After phosphor bronze wire is woven into a mesh, its performance advantages are further reflected in the structural and functional levels:

1. High elasticity and excellent resilience: The mesh itself has a spring-like compression and rebound property. It can fit tightly to irregular surfaces when compressed and return to its original shape when the pressure is released.

2. Low contact resistance and stable conduction: bronze base ensures extremely low body resistance. Elastic contact provides a continuous, reliable low-impedance electrical connection path, avoiding connection failure caused by micro-vibration or thermal expansion and contraction.

3. Excellent electromagnetic shielding performance (EMI Shielding) : High conductivity and dense mesh structure form an effective electromagnetic wave barrier to reflect/absorb electromagnetic interference.

4. Good ventilation, heat dissipation and current distribution: The mesh structure allows air circulation to avoid heat accumulation. When used as an electrode or current collector, the mesh structure helps to evenly distribute the current.

5. Wear resistance and mechanical fatigue resistance: The wear resistance of phosphor bronze wire itself + the toughness of the woven structure enable it to withstand repeated friction, plugging and pulling, and vibration.

6. Plasticity (for specific shapes): It can be processed into complex shapes such as gaskets, shielding strips, contacts, etc.

7. A certain degree of sealing (fitting elasticity): Under appropriate compression, it can provide environmental sealing (dust-proof, splash-proof) and electromagnetic sealing.

The application of phosphor bronze woven mesh is almost entirely based on its three major properties: elastic conductivity, electromagnetic shielding and wear resistance:

1. Electrical connection and grounding (largest application area) :

Ø Conductive spring washers/gaskets: Used in high voltage/high current connections of power equipment, switchgear, circuit breakers, transformers, etc. to provide low impedance, anti-loosening electrical contact.

Ø Grounding braid/woven wire: Connects the equipment housing to the grounding stake to discharge static electricity and fault current. It is especially suitable for occasions that require flexibility and vibration resistance (such as mobile equipment, vehicles, and aircraft).

Ø Battery connector/flexible jumper: High-current flexible interconnection between battery modules in electric vehicles and energy storage systems, adapting to thermal expansion and contraction and slight displacement.

Ø Brushes and sliding contacts: wear-resistant conductive sliding contact parts in motors, generators and slip rings.

2. EMI/RFI Shielding

Ø Shielding gaskets/reeds: Installed in electronic equipment chassis, doors, covers, and gaps in shielded rooms to fill gaps, provide a continuous conductive path, and ensure electromagnetic sealing integrity (better than conductive foam and longer life).

Ø Ventilation window shielding net: covers the heat dissipation holes of the cabinet, effectively shielding electromagnetic leakage while ensuring ventilation.

Ø Cable shield braid: A flexible shielding layer around high-frequency coaxial cables and data cables (sometimes mixed with tinned bronze wire).

3. Special industrial parts

Ø Explosion-proof Equipment Safety Barrier: Used as a vent in explosion-proof instrument housings to block flame transfer while allowing gas diffusion (using fine mesh and high thermal conductivity of metal to absorb heat).

Ø Electrodes and current collectors: used as corrosion-resistant, highly conductive electrode substrates or current collection networks in the fields of electrolysis, electroplating, and batteries.

Ø Wear-resistant filtration and transportation: In situations where conductivity and wear resistance are required, such as screening or conveying nets of special materials (relatively less used).

4. High-end electronics and precision instruments

Ø Internal connection of vacuum/high frequency devices: Using its non-magnetic, high conductivity and elasticity. Elastic conductive contact points of precision instruments.

Things to note when choosing and using phosphor bronze woven mesh

1. Anti-corrosion environment: Avoid using in environments containing ammonia, ammonium salts, nitric acid and strong oxidation. In moist sulfur-containing environments (such as industrial atmosphere), bronze sulfide is easily generated on the surface and becomes dark, but it does not affect the conductivity. In important occasions, tin-plated phosphor bronze woven mesh can be selected to enhance corrosion resistance and solderability.

2. Stress control: Although the relaxation resistance is good, the design should avoid being in the extreme deformation state for a long time.

3. Cleaning and maintenance: Use alcohol or special metal cleaner to clean, strong acid and alkali are prohibited.

4. Weaving specifications: Select appropriate wire diameter, hole diameter (mesh number) and weaving density according to current size, shielding effectiveness and elasticity requirements. Fine wires are often used for high elasticity requirements.

Phosphor bronze woven mesh is a leader in the field of elastic conductive functional materials. It perfectly combines the high conductivity, strong elasticity, fatigue resistance and wear resistance of phosphor bronze alloy with the flexibility, compressibility and current sharing/heat dissipation capabilities of the woven structure. Its core value lies in solving the problems of dynamic or long-lasting and reliable contact, grounding and electromagnetic shielding, especially in power equipment connection, high-end electronic shielding and mobile equipment grounding. Although the cost is higher than ordinary bronze mesh or stainless steel mesh, phosphor bronze woven mesh is an irreplaceable choice in critical occasions that require zero-compromise performance and reliability.

DASHANG WIRE MESH is a professional phosphor bronze mesh manufacturer. We select high-quality phosphor bronze wire , rely on advanced production equipment and professional technical team, raw material screening and finished product inspection are strictly controlled to ensure the provision of the best quality phosphor bronze woven mesh.

Phosphor bronze woven mesh availabel in stock: