Quality requirement and major defects types about stainless steel dutch woven wire mesh

Quality requirement:

1. The mesh surface is flat, clean, and the weft wires are tightly arranged without gaps, any mechanical damage, creases, or rust spots. Weaving defects (number of mesh defects) shall not exceed GBT 21648 standard (according to customer requirements)

2. The test shall be carried out on the Frosted glass test bench with uniform light source. When the nominal pore size is less than 30 microns, it should be detected in suggestion.

Major defects types:

1. The surface is not flat with waves on both sides of roll;

2. The woven mesh is too soft due to improper machine adjustment;

3. Uneven mesh surface caused by improper machine adjustment;

4. Different types of bright spots or highlights

● A single broken warp is counted as a single bright spot, and more than 3 concentrated broken warp are considered as unacceptable holes;

● If the length of a single missing thread exceeds 5mm, it will be considered as an impermissible hole;

● The individual bright spots formed by weft breakage and weft dimples, as well as the individual bright spots formed by the back nose, are counted as individual bright spots. The continuous bright spots formed by weft breakage, dimples, and back nose are converted into the number of bright spots based on their length. When the hole spacing between warp threads is less than 1MM, one bright spot is converted into one bright spot for every 1MM length. When the hole spacing between warp threads is greater than or equal to 1MM, one bright spot is converted into one bright spot for every 2MM length;

● When the length of the bright channel is greater than 50MM, it can be counted according to the usual bright channel. Bright channels less than or equal to 50MM can be converted into bright points. When the aperture between warp threads is less than 1MM, it is converted into one bright point per 1MM length. When the aperture distance between warp threads is greater than or equal to 1MM, it is converted into one bright point per 2MM length.

Dutch wove wire mesh(filter mesh) plays a very important role in the filtration industry, but producing high standard dutch woven mesh is not very easy. Therefore, Dashang Wire Mesh has introduced advanced fully controlled weaving machines, effectively solving the problem of uneven mesh surface of dutch woven mesh. Dutch woven mesh is the main product series of Dashang wire mesh, and both weaving technicians and inspectors have rich experience in dutch woven mesh. We can produce dutch woven mesh with filtration accuracy ranging from 1 micron to 300 microns, including plain weave, twill weave, and revers weave. Our main specifications and models include: