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What Are the Types and Advantages of Copper Meshes

Oct. 21, 2024

Copper mesh, also referred to as copper screen or copper wire mesh, is a square weave mesh made from copper wires, known for its excellent electrical and thermal conductivity. Copper is a soft, malleable material, making copper mesh ideal for various applications. It is commonly used to block electromagnetic interference (EMI) and as a shield against radio frequency interference (RFI). Additionally, copper mesh is utilized in window screens and in industries for filtration and separation purposes.

 

Known for its durability and long service life, copper mesh also carries a sense of wealth and prestige, which is why it is often used as a decorative element in building facades. Moreover, it serves as a strong and reliable plastering reinforcement material for ceilings and walls.


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Classification

 

Copper mesh can be classified into medium, fine, and coarse types based on the wire specifications.

 

- Medium copper mesh includes mesh sizes ranging from 12 x 12 to 40 x 40.

- Fine copper mesh includes sizes such as 50 x 50, 60 x 60, 80 x 80, and 100 x 100.

- Coarse copper mesh consists of mesh sizes like 2 x 2, 4 x 4, 6 x 6, 8 x 8, and 10 x 10.

 

Copper mesh can also be categorized by the materials used, resulting in three main types: pure copper mesh, brass wire mesh, and phosphor bronze mesh.

 

1. Pure Copper Mesh  

Made from 99.8% pure copper wire, this mesh is non-magnetic and can withstand grinding pressure. It is commonly used for electron beam filtration and in electronic display screens.

 

2. Brass Wire Mesh  

Made from brass, this mesh comes in various compositions. One common type is 65 brass, containing 65% copper and 35% zinc, while another is 80 brass, with 80% copper and 20% zinc. Brass wire mesh is non-magnetic, ductile, and wear-resistant. It is used for filtering gases and liquids, as well as screening powders and granules, and is commonly applied in porcelain, glass, and clay industries.

 

3. Phosphor Bronze Mesh  

Also known as tin bronze mesh, this type is made from phosphor copper wire, containing 85–90% copper and 5–15% tin. It is non-magnetic, resistant to alkali and acid corrosion, and has good ductility, making it suitable for various industrial applications.

 

Mesh Sizes and Shapes

 

Copper mesh is available in various sizes, with wire diameters typically ranging from 0.3mm to 1.2mm. The most commonly preferred wire diameter among consumers is 0.6mm. The opening size of the mesh usually falls between 4mm and 6mm. Copper mesh is typically shaped into squares, with bare copper mesh often having a standard spacing of 300 x 300mm.

 

Advantages of Copper Mesh

 

1. Tensile Strength  

Copper is both strong and versatile, which enhances the reliability of systems, even in unfavorable conditions.

 

2. Non-Reactivity with Water  

Copper does not react with water, though it can react with oxygen to form a protective dark brown layer of copper oxide. Unlike iron oxidation, this copper oxide layer prevents further corrosion, maintaining the material's integrity.

 

3. Adaptability  

Copper mesh is flexible, easy to handle, and simple to install. It can be quickly secured through welding, brazing, or soft soldering, making it adaptable to various design configurations.

 

4. Durable and Low Maintenance  

Copper mesh is highly durable and requires minimal maintenance, making it a preferred material for mechanical and industrial systems. It is naturally corrosion-resistant and does not require additional finishing.

 

5. Biostatic Properties  

Copper's biostatic nature prevents the growth of bacteria on its surface.

 

6. Sustainability  

Copper is fully recyclable and retains its high quality, whether reused in its original form or as part of manufactured products. It is one of the most recyclable metals, alongside aluminum and iron.

 

7. Safety and Security  

Copper mesh does not melt or burn easily, and it does not propagate fire through walls, ceilings, or floors. Additionally, it does not decompose into toxic gases when exposed to high temperatures.

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