Discussion on corten weathering steel processing technology

Corten weathering steel sheets are commonly used in bare buildings. With the frequent occurrence of adverse weather, in order to reduce the corrosion of buildings, the demand for corten weathering steel sheets in the market is also increasing. Corten weathering steel plate is different from ordinary stainless steel. It will form a dense oxide film on its surface after long-term contact with the atmosphere, and the oxide film gradually changes color with the evolution of time. Therefore, corten weathering steel plate has a better application in the art field. Let's follow corten weathering steel plate manufacturers to understand corten weathering steel plate processing technology.

The preparation of corten weathering steel sheet before welding is the same as that of low carbon steel. It should be noted that the groove size and the galvanized layer nearby should be carefully handled. In order to penetrate, the groove size should be appropriate, and there should be a certain gap, generally 1.5-2.5 mm. In order to reduce the penetration of zinc into the weld, before welding, the galvanized layer in the groove can be removed and then welded. In the actual supervision work, the centralized grooving, no blunt edge technology and two-layer welding technology are adopted to control the centralized grooving, which reduces the possibility of non-penetration. Corten weathering steel is usually plated with zinc on the low carbon steel, and the zinc coating is usually 20um thick. In welding, zinc melts into liquid and floats on the surface of the weld pool or at the root of the weld. At the same time, zinc and iron can form intermetallic brittle compounds. These brittle phases reduce the plasticity of weld metal and cause cracks under tensile stress. If the fillet weld, especially the fillet weld of the T joint, is easy to produce through cracks. When the corten weathering steel plate is welded, the zinc layer on the groove surface and the edge produces oxidation, melting, evaporation and even evaporation of white smoke and vapor under the action of arc heat, which easily causes weld pore.

Through the knowledge of corten weathering steel plate manufacturers, I believe that you have a new understanding of corten weathering steel plate. In life, corten weathering steel plate is also used in garden landscape or building curtain wall. Corten weathering steel plate used in these areas will not affect the surrounding ecology, but also enhance the overall texture of these areas. BBN steel has many kinds of corten weathering steel sheets with reliable quality and good performance. If you want to know more, please contact us.