Copper is a type of Non-ferrous metal, and metal rusts under normal conditions, most commonly in the case of iron, as do copper plates. Copper plates react with carbon dioxide in a humid environment, so in a humid climate with more carbon dioxide, copper plates can also be oxidized and rust, just not like iron. Red Copper Plate has good mechanical properties, good plasticity in hot state, good plasticity in cold state, good machinability, easy to welding and welding, corrosion resistance, but easy to produce corrosion cracking, in addition to cheap, is a common brass widely used varieties. It is easy to oxidize in the air and lead to rust. If the rust part is not handled properly, it will affect our processing use, so we use copper, always very worried, if not long copper rust how to do? What are the methods of Red Copper Plate Rust? 1 using copper cleaning agent, can easily complete the work of rust removal, but for rust, oxidation of copper we also need to do copper chemical polishing, because it can not only quickly remove the surface oxide layer, rust, copper green, after treatment, it can restore the natural color of Red Copper Plate. And polished at the same time, can achieve a level, smooth effect. 2 copper hydrochloric acid pickling. However, many power plants in the red copper plate acid pickling corrosion inhibitor is not ideal. Corrosion inhibitors (corrosion inhibitors that protect iron and iron-based alloys) are often used directly in boiler pickling, or small-scale screening tests are carried out, but due to the improper experimental methods, the main factors that promote the corrosion of copper plate in actual pickling have not been grasped, so that the corrosion inhibitor which is selected seems to be effective in small scale experiment, but its corrosion inhibition efficiency is very low or even ineffective in actual pickling. In order to simulate the field practice as far as possible, the screening experiments of corrosion inhibitors were carried out under the condition of adding some Cu'10 ions (in the form of copper chloride) and stirring at the same time. 3 can be passivated treatment, after passivating treatment, it can effectively prevent copper rust, copper oxidation, and resistance to salt spray test for a long time, does not affect the conductivity of copper products, is the best choice between the final corrosion inhibition, rust prevention. 

Source: Web Collation

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