Make sure all the machines are in good condition before production.
Wire Condition Inspection
Check the wire diameter with microcalliper, make sure the wire diameter is within the tolerance, the zinc is evenly coated on the wire surface, and there are no visible nicks or cuts.
Straightened & Cut Wire Inspection
Surface condition check every 500 pieces, discard the defect ones.
Trail Production Inspection
Adjust the welding machine mesh sheet tractor device, the electricity current, welding pressure, warp wire & weft wire spacing, then produce 3 to 5 sheets to check the sheet size, flatness, diagonal tolerance, welding strength. If the sheets are not good, readjust the related parameters. If ok, then start bulk production.
Bulk Production Inspection
Check the first 5 sheets, and then check them every 50 sheets. And 1 worker will randomly check the mesh sheets condition during welding, to achieve the consistent quality control.
Sheet size, wire spacing, diagonal, welding strength, overhang size inspection
With everything is in order, pack the mesh sheets waiting for shipment.