The weft shrinkage of metal wire mesh.

The weft wires of the square mesh are bent and deformed to varying degrees within the mesh, and the length of the bended weft wires is always longer than the width of the mesh. The warp shrinkage of metal wire mesh is generally achieved through plastic elongation of the metal wire woven into the mesh (unlike warp shrinkage, which is achieved by increasing the length of the warp). Therefore, the magnitude of the weft shrinkage of metal wire mesh directly affects the probability of weft wire fracture in the mesh. The weft shrinkage of metal wire mesh is an important structural parameter and a key reference data for estimating the difficulty of weaving metal wire mesh of a particular specification, as well as for selecting weft wire materials and mechanical properties.

In the plain weaving process of square mesh, the weft shrinkage rate is generally lower than the warp shrinkage rate, so the elongation rate of most soft metallic wire materials can meet the requirements of weft shrinkage rate.

The Dutch weave is made up of warp threads that are coarse and weft threads that are fine. The warp threads do not bend or have shrinkage, but the weft threads are subject to deformation and have a high shrinkage rate within the network. The quality of the Dutch weave is directly affected by the size of the weft shrinkage. If the weft shrinkage is significant, the weaving force will be high, which may result in the breakage of weft threads. Therefore, it is essential to calculate the weft shrinkage of the Dutch weave.