Introduction of particle size and mesh for powdered products.
1. Powdery particle size refers to the diameter or particle size of individual particles in a powder.
Generally speaking, the measurement methods of powdery particle size mainly include sieving method, laser particle sizer method, electron microscope method and so on. Among them, sieving method is a commonly used measurement method to measure the particle size of the powder by screening the powder through sieves of different mesh sizes.
2. Sieve inner diameter (μm) ≈ 14832.4 / sieve mesh number of measurement unit mesh particle size is the size of raw material particles, generally expressed in terms of the maximum length of the particles.
3. Sieve mesh is a way to indicate the size of the sieve holes, usually refers to the number of sieve holes in each inch (25.4 mm) length. A larger mesh size means smaller holes and finer particles; a smaller mesh size means larger holes and coarser particles.
4. Sieve inner diameter refers to the diameter of the sieve holes, is a measure of the size of the sieve aperture index. The size of the inner diameter of the sieve directly affects the screening effect of the size of the powdered product particles.
Generally speaking, the smaller the inner diameter of the sieve, the smaller the particles of powdered products can be screened out; on the contrary, the larger the inner diameter of the sieve, the larger the particles of powdered products can be screened out.
Sieve inner diameter (μm) ≈ 14832.4 / sieve mesh number of units of measurement mesh size refers to the size of the raw material particles, generally expressed in terms of the maximum length of the particles.
5. Sieve mesh is a way to express the size of the sieve holes, usually refers to the number of sieve holes in each inch (25.4 mm) length. The larger the mesh size, the smaller the holes and the finer the particles; the smaller the mesh size, the larger the holes and the coarser the particles.
6. sieve size is the particles can pass through the sieve mesh sieve size, to 1 inch (25.4mm) width of the sieve mesh within the number of sieve holes, and therefore called the "mesh" mesh, that is, the number of holes, that is, the number of holes per square inch. 100 mesh that is, 100 holes per square inch on the mesh, 300 mesh is 300 holes. The higher the mesh number, the more holes. In addition to indicating the mesh of the screen, it is also used to indicate the particle size of the particles that can pass through the screen, the higher the mesh number, the smaller the particle size. In general, mesh number x aperture (number of microns) = 15,000.
The following table shows the conversion between mesh and micron (μm) particle size.
