What about the key points for selecting flour mesh?...

There are flour factories both at home and abroad. If the flour mill chooses, it is better to choose nylon sieve mesh. So many friends will want to choose the main points of the nylon sieve mesh? What are the precautions for the stretch net?

1. Wear resistance: It determines the service life of nylon sieve mesh to a large extent. Among all the materials currently used, nylon wear resistance is the best, polyester is only 70%, silk is the worst, for the same material. In the case of a screen, the thicker the wire diameter, the better the wear resistance.

2. Elongation: From the value of Table 1, the silkworm mesh is obviously lower than polyester and nylon mesh, but now, most polyester and nylon meshes are heat-set after being braided to prevent mesh deformation as much as possible. Therefore, it is basically close to the use effect of silkworm mesh.

3, anti-static: all flour screens are required to do anti-static treatment, which is because the contact and friction between fibers and fibers, fibers and materials, will cause the transfer of charge between the fiber surface, resulting in static phenomena, but also due to flour The particle size is fine, and it is easy to be sifted by the charge attraction, and even the paste net.

4. Screen opening size: As can be seen from the above, due to the existence of various representation methods, it is preferable to select according to the actual size.

Note on nylon sieve mesh: Here we focus on the general principles of attention. In fact, in addition to the principle, there are aspects of proper control of tension, aging treatment, and so on.

1. From the operational specification, mechanical tensioning should be followed by latitude, and if pneumatically stretched, it should be tight at the same time.

2. The screen core should be flattened, and the screen mesh should be laid flat. When clamping, ensure that the latitude and longitude of the screen is consistent with the screen core frame to preventthe tension.

3. Pneumatic stretcher machine adopts combined structure for adapting to various specifications of screen cores. Therefore, it must be ensured that the pneumatic clamps are arranged in the middle of the machine, corresponding to each other, tension and balance, and also the distance of the pneumatic clamp from the edge of the screen core. At least 1.5 cm short, so as to avoid pulling the broken net and preventing uneven force.

4. When placing the tension meter, it is best to select the measuring point in the center of the screen core field, because the force in the stretching process is weak in the middle. If the two compartments are mainly stretched at the same time in the middle test, in order to prevent the two sieve cores from being placed unevenly, the hidden tension is not tight.

When choosing a nylon sieve mesh, you can consider the above points. When you need to pay attention, you need to pay attention to the operation specifications when using the mesh.