expanded mesh suppliers

Latest articles


  • The COMBINATION OF disSIMILAR METALS, such as steel and copper, tin, lead and other non-ferrous metals, during hot dip operation, the dissolution of this non-metal will cause the change of zinc film structure. Also like the combination of old and new steel, in pickling operation, the new material is easy to pickling over. In addition, such as part of the processed components, excessive pickling at the processing place is also.
  • If the coating roughness is not caused by the above reasons, it may be caused by impurities in the plating solution. Can take a small amount of electroplating solution, filtration test, and then take a small amount of electroplating solution, with zinc powder treatment after the test, check the problem is solid particles or copper, lead and other foreign metal impurities caused by. One by one, it’s not hard to find the cause of the problem. Galvanized iron wire coating blister, poor adhesion.

  • Latest articles

    Links