What does the mesh number of copper bronze powder mean?

Copper bronze powder is made of copper, copper/zinc alloy and aluminum. By varying the copper and zinc content in the alloy, various shades of gold can be made. Copper bronze powder has different applications depending on the mesh number. So, what does the mesh number of copper bronze powder mean?

1. Definition of mesh number of copper bronze powder

The mesh number of copper bronze powder is an indicator used to describe the particle size of copper powder. It represents the ability of copper bronze powder to pass through a sieve, and is usually tested using sieve analysis. The smaller the mesh number, the larger the particle size of copper bronze powder.

2. The difference between different mesh numbers

Copper bronze powder is divided into 200 mesh, 400 mesh, 600 mesh, 800 mesh, 1000 mesh, 1200 mesh and 1500 mesh according to different particle sizes. The larger the mesh number, the smaller the particle size, and the higher the surface coverage.

1) Copper bronze powder with a mesh size of 200 and below has larger particle size and is mainly used in the production of electronic slurries, conductive adhesive coatings, copper-based materials and other products.

2) Copper bronze powder with a mesh size of 300 to 500 mesh, with medium particle size, is mostly used in metal coatings, additives, electrolytic circuits, printed circuit boards and other fields.

3) Copper bronze powder with a mesh size of 600 and above has a smaller particle size and is mainly used in microelectronic technology fields such as advanced ceramics, piezoelectric materials, conductive inks, and conductive adhesives.

3. The role of copper bronze powder mesh number in practical applications

Copper bronze powder is often used to manufacture various bronze products. In addition to manufacturing bronze products, copper bronze powder has many other uses, such as manufacturing castings, powder metallurgy products, and as additives and electrode materials.

The mesh size of copper bronze powder directly affects its application in different fields. Larger copper bronze powder can better fill the surface and improve conductivity; finer particle size copper bronze powder can provide higher chemical reactivity and is suitable for the field of microelectronics. Therefore, in specific production and applications, choosing copper bronze powder with different mesh numbers can better meet the particle size requirements of different fields.