2205 Stainless Steel Seamless Tube Surface Iron Trioxide Plating Machine Processing

In the range of 25-300℃, with the increase of deformation temperature, the strength and elongation of the prepared materials decrease gradually in hot rolled, cold rolled and solid solution states. The reason may be that the rise of temperature, the increase of stacking fault energy and the change of deformation mechanism from twinning to slip. 4.210-4-6. In the range of 310-3/ rate, with the acceleration of strain rate, the strength and elongation of the material gradually decrease, which may be caused by the increase of strain rate, the limited dislocation movement and the difficulty in forming deformation twins. Metal material electrochemical workstation on the corrosion resistance of material test and analysis show that the developed 2205 stainless steel seamless tube after solid solution treatment good corrosion resistance and corrosion resistance decreases after deformation, Cr and Ni element is helpful to improve corrosion resistance, the mechanical chemistry corrosion is the main reason of corrosion resistance decrease after deformation.

Finite element simulation method is used to simulate the expansion process of large expansion rate expansion tube, and the results are similar to those of dynamic tensile test under underground temperature field. In some radio products, silver - plated 2205 stainless steel seamless tube material is required. But for 2205 stainless steel seamless tube material (parts) electroplating, if not special treatment, it is difficult to electroplate this problem how to solve it? Various experiments have been made repeatedly, and the following better methods have been summarized. 2205 stainless steel seamless tube after mechanical processing, heat treatment, welding and other technological measures, its surface will produce a layer of oxide. This layer of oxide is difficult to remove by pickling before plating with ordinary ferrous metals, which is one of the reasons for the difficulty in electroplating. The scale of 2205 stainless steel tube mainly contains: ferric oxide (Fe_2O_3), aqueous ferric oxide (Fe_2O_3mH_2O), ferric oxide (Fe_3O_4), chromium oxide (Cr_2O_3), silicon dioxide (SiO_2), titanium dioxide (TiO_2) and spinel oxides. In order to be able to electroplate, it is necessary to remove the pretreatment of these 2205 stainless steel seamless tube electroplating.