How to quickly deal with the rust on the surface of a single-head electric heating tube?

How to quickly deal with the rust on the surface of a single-head electric heating tube?

　1. Use spray or pickling paste to assist the re-passivation of the rusted part to form a chromium oxide film, so that it can restore corrosion resistance. Apply the pickling paste to the surface to be treated, the thickness of the coating film is 0.5-2mm, the general reaction time is 3-10 minutes or more, when it is used below 0 degree or where the oxide scale is thick, the time needs to be extended appropriately.

　　 2. In the process of treatment, it is best to use a brush to wash it several times. After the surface oxide scale is completely removed, rinse it with clean water (lime water or alkaline water is better) to avoid returning rust. After pickling, in order to remove all contaminants and acid residues, it is important to rinse properly with clean water.

　　 3. After all processing, re-polishing with polishing equipment, and then sealing with polishing wax. For those with slight rust spots, you can also use a 1:1 gasoline and engine oil mixture to wipe off the rust spots with a clean cloth.

　　 The inner tank of the instant electric water heater is coated with nano-silver, and the heating tube is oxygen-free copper, which will not scale. It should be understood that there are two prerequisites for fouling in production lines, one is stagnant water, and the other is that the condition for fouling is above 80 degrees. Instant electric water heaters are ready to use, no storage of water, running water is used, not dead water, and the product is equipped with anti-high temperature settings. As long as the temperature of the inner tank is close to 80 degrees, it will stop heating, so there will never be scaling phenomenon. Of course, we are talking about no scaling under the premise of qualified tap water. If non-qualified tap water or self-fetching water, experts recommend adding a pre-filter or a central water purifier before the water heater. This not only protects the water heater, but also prolongs the life of each water device, which is of great benefit to human health.