Galvanized Welded Wire Mesh (sstsp): Manufacturing Technology, The Advantages
Over the past few decades, the zinc coating has shown high consumer qualities and it became one of the most common methods of protection against corrosion of metal mesh. High protective (Corrosion) properties of this coating due to the fact that most occurring corrosion-active media (in the industrial and marine atmosphere, in fresh and salt water) is a zinc anode, almost all of the applicable Metals. Because of this, zinc is dissolved in these media, and therefore not subject to destruction unless it contains a layer of zinc. Therefore, the life of galvanized mesh, even in conditions of increased aggressiveness may up to 30 years, which at times reduces the cost of its operation and maintenance. To date, there are five technologies corrosion protection of metal, each of which has its positive and negative sides. We concentrate on the method of hot-dip galvanizing is the most common in the manufacture of welded galvanized mesh.
This is largely due to high productivity and efficiency of the technology, and high consumer demand for this type of dip. The process of applying zinc coatings "hot" method on the metal grid is composed of six agreed stages. When hot dip galvanizing requires that welded wire mesh was perfectly clean until immersion in molten zinc, it is only "metal clean" surfaces can react with each other. Therefore, the six-step dip "hot" way, five of them are preparatory "cleansing" phase: 1) Phase degrease the surface of any metal product to be galvanized to a greater or lesser extent, contaminated oils and fats.
Tags: construction and repair