als should meet the requirements.

Weaving accuracy inspection. Divided into 3 levels: first-level accuracy, mesh limit deviation cannot exceed 6%; second-level accuracy does not exceed 9%; third-level accuracy does not exceed 12%; mainly the inspection of the arithmetic average of the mesh and the size of the large mesh test.

Weaving quality inspection. There can be no manufacturing defects in the production of steel mesh. Generally speaking, the metal mesh delivered in rolls is not allowed to have major defects, a small number of important defects, and a certain number of general defects are allowed.

Stainless steel filter inspection method and quality standard requirements

Stainless steel filter screen has the following main defects in the weaving process

1. The warp and weft are not firmly interwoven, and the warp and weft are obviously loosened and displaced when rubbing up and down with hands and fingers.

2. The curling is serious, the mesh size is greater than or equal to 0.18mm, and the natural crimp diameter of the 1m long wire surface is less than 80mm; the mesh size is less than 0.18mm, and the natural bending diameter of the 1m long wire surface is less than 60mm, which shall be judged as unqualified;

3. The net skew is serious, and the warp and weft of the weaving width on the net surface are not perpendicular to more than 4 degrees;

4. a large area with many creases;

5. The extra large meshes in the radial direction exceed the tolerance;

6. Large area density is out of tolerance;

7. Large-area weft run, with uneven mesh surface;

8. The diameter of warp and weft is seriously out of tolerance;

9. broken hole, half-cut, large fork;

10. Severe chromatic aberration in a large area and serious mechanical damage.