How big is the mesh mesh of a 12 mesh sieve, and how many mm pore size is equivalent to a 160 mesh s

Mesh. 1. Terminology in physics.

Definition of the number of particles.

The so-called mesh number refers to the particle size or coarseness of the material. The general definition refers to the screen in an area of 1 inch * 1 inch, the material can pass through the screen, and the number of holes in the screen is defined as the number of meshes. For example, 200 mesh, that is, the material can pass through a screen with 200 mesh holes within 1 inch * 1 inch.

And so on, the larger the mesh, the finer the particle size of the material;The smaller the mesh, the larger the particle size of the material. Sieve particle size is the size of the mesh through which the particles can pass through the screen, which is expressed as the number of mesh holes in the screen with a width of 1 inch, so it is called the number of meshes.

The specifications of standard screens vary from country to country, and the commonly used Taylor system is based on the number of holes per inch of length as the screen number, which is called mesh. For example, a 100-mesh sieve means that there are 100 mesh holes per inch of screen.

The mesh size corresponds to the standard mesh:

Sieve hole size: Standard mesh: 4 mesh.

Sieve hole size: Standard mesh: 5 mesh.

Sieve hole size: Standard mesh: 6 mesh.

Sieve hole size: Standard mesh: 7 mesh.

Sieve hole size: Standard mesh: 8 mesh.

Sieve hole size: Standard mesh: 10 mesh.

Sieve hole size: Standard mesh: 12 mesh.

Sieve hole size: Standard mesh: 14 mesh.

Sieve hole size: Standard mesh: 16 mesh.

Sieve hole size: Standard mesh: 18 mesh.

Sieve hole size: standard mesh: 20 mesh.

Sieve hole size: standard mesh: 25 mesh.

Sieve hole size: standard mesh: 30 mesh.

Sieve hole size: standard mesh: 35 mesh.

Sieve hole size: standard mesh: 40 mesh.

Sieve hole size: standard mesh: 45 mesh.

Sieve hole size: standard mesh: 50 mesh.

Sieve hole size: standard mesh: 60 mesh.

Sieve hole size: standard mesh: 70 mesh.

Sieve hole size: standard mesh: 80 mesh.

Sieve hole size: standard mesh: 100 mesh.

Sieve hole size: standard mesh: 120 mesh.

Sieve hole size: standard mesh: 140 mesh.

Sieve hole size: standard mesh: 170 mesh.

Sieve hole size: standard mesh: 200 mesh.

Sieve hole size: standard mesh: 230 mesh.

Sieve hole size: standard mesh: 270 mesh.

Sieve hole size: standard mesh: 325 mesh.

Sieve hole size: standard mesh: 400 mesh.

A plus or minus sign before the mesh indicates whether the mesh of the mesh can be missed. A negative number indicates that the mesh can be leaked through that mesh, that is, the particle size is less than the mesh size; A positive number indicates that the mesh cannot be missed, i.e., the particle size is larger than the mesh size. For example, the particles are -100 mesh + 200 mesh, that is, these particles can leak from the 100 mesh but can not leak from the 200 mesh mesh, when screening the particles of this mesh, the large mesh (200) should be placed under the screen of the small mesh (100), and the screen left in the large mesh (200) is -100 + 200 mesh particles.

The screen has the American Taylor standard screen and the current standard screen in China, and the 160 mesh screen is about 95um=.

Let's give you a comparison table for reference.

"Mesh" is a unit of length, representing the side length of the square hole corresponding to the number of meshes on 1 square inch, due to the existence of mesh wire, the number of meshes and the corresponding length are not completely linear, but it must be that the higher the number of meshes, the smaller the length. The screen is different from the general mesh products, and the screen has a strict series of mesh sizes. In addition, there are mesh products that have the function of grading and screening object particles and are recognized by industries, institutions and standards.

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The screen 10 mesh is millimeter, and the screen 10 mesh means that there will always be 10 mesh, and each mesh has a corresponding size. Each country has different specifications for the screen, but when using the screen, it is also necessary to select the appropriate specifications according to the actual use, basically the screen is made of steel wire, the stability is relatively strong, and it can be used for reinforcement.

In fact, there is no fixed value for the screen, and the corresponding size is generally calculated according to the number of meshes. If you want to know the exact value, you can also directly check the screen mesh number and size comparison table.

Screen use standards and precautions for liquid covers

The screen uses the standard of wire diameter and mesh size as the standard for material and liquid screening of materials. The selected material should be suitable for the characteristics of acid and alkali resistant environment, which is not easy to rust, and stainless steel screen is preferred. Stainless steel screens are widely used in the noisy coastal border.

After use, wipe it with a dry cotton cloth frequently to maintain the original bright color.

When the wire screen is used, the surface is easy to rust and the wire diameter is broken. In order to prolong the service life, galvanizing, spraying, frosting and other treatments on the surface of the wire screen are treated to achieve the characteristics of corrosion resistance and high temperature resistance, and enhance the matching of surface color and use environment, and a variety of colors are available for users to choose.

The above content refers to Encyclopedia - Sifting.

The standards of the mesh number and pore size comparison table are as follows:Sieve hole size: Standard mesh: 4 mesh.

Sieve hole size: Standard mesh: 5 mesh.

Sieve hole size: Standard mesh: 6 mesh.

Sieve hole size: Standard mesh: 7 mesh.

Sieve hole size: Standard mesh: 8 mesh.

Sieve hole size: Standard mesh: 10 mesh.

Sieve hole size: Standard mesh: 12 mesh.

Sieve hole size: Standard mesh: 14 mesh.

Sieve hole size: Standard mesh: 16 mesh.

Sieve hole size: Standard mesh: 18 mesh.

Sieve hole size: standard mesh: 20 mesh.

Sieve hole size: standard mesh: 25 mesh.

Sieve hole size: standard mesh: 30 mesh.

Sieve hole size: standard mesh: 35 mesh.

Sieve hole size: standard mesh: 40 mesh.

Sieve hole size: standard mesh: 45 mesh.

Sieve hole size: standard mesh: 50 mesh.

Sieve hole size: standard mesh: 60 mesh.

Sieve hole size: standard mesh: 70 mesh.

Sieve hole size: standard mesh: 80 mesh.

Sieve hole size: standard mesh: 100 mesh.

Sieve hole size: standard mesh: 120 mesh.

Sieve hole size: standard mesh: 140 mesh.

Sieve hole size: standard mesh: 170 mesh.

Sieve hole size: standard mesh: 200 mesh.

Sieve hole size: standard mesh: 230 mesh.

Sieve hole size: standard mesh: 270 mesh.

Sieve hole size: standard mesh: 325 mesh.

Sieve hole size: standard mesh: 400 mesh.

Calculation method of mesh: wire diameter + aperture diameter) = mesh.

Screen calculation formula:

1. Mesh size: w=l n d, w - average size of mesh (mm), l - length of adjacent mesh (mm), d - average diameter of wire (mm).

Second, the number of screen meshes: 1 inch (the number of mesh holes in the length.)

1 mesh = 1 aperture + 1 wire diameter mesh inch = number of meshes

3. Find the number of meshes = aperture + wire diameter).

Fourth, find the mesh size = mesh wire diameter.

The 20 mesh mesh aperture is an mesh screen that has 20 holes in a length of 1 inch. 20 mesh means that there are 20 holes in the length of one inch.

The mesh is the number of holes per square inch of 20 meshes and 20 holes per square inch.

1 square inch = square millimeter.

square millimeters. The diameter of each mesh is millimeters squared.