Hur man korrekt hanterar det svärmningsproblemet med flänsens elektriska värmningsrör

1. Förberedelse före rengöring: Rengör först ytan på det elektriska värmningsröret, ta bort föroreningar och se till att ytan på det elektriska värmningsröret är ren och snygg .

2. Degreasing treatment: Immerse the electric heating tube in a degreasing night with a pH value of about 13. Degreasing liquid is easily available on the market. Immerse in alkaline degreasing liquid for about 30 minutes to treat the surface of the heating tube, and use clean water to remove impurities produced by surface chemical reactions to ensure that the surface is clean.

3. Pickling: After degreasing, there will be alkaline and alkaline substances on the surface of the heating tube, and the heating tube needs to be cleaned with acidic liquid. Generally, the pH value of the acidic liquid is about 3, and the soaking time is about 10 minutes. After treatment, clean the electric heating tube with clean water.

4. Blackingbehandling: Se till att vätskans pH -värde är mellan 2-4, och behandlingstiden är cirka 10 minuter . Efter behandlingen rengör ytan på värmningsröret .}

5. Complete drying and oiling: After the paired electric heating tubes are chemically treated and cleaned, they should be dried to remove the clean water on the surface, and then oil the electric heating tubes after drying. After blackening, an oxide film will appear on the surface of the heating tube, which plays a good role in corrosion protection for the heating tube.