Simple steps for blackening treatment of single-head tube

The prerequisite for handling the blackening is to keep the surface of the heating tube clean and tidy. If there are impurities on its appearance, it will not be conducive to the treatment of blackening.

The first thing to do is to understand the organic matter on the outside, the so-called degreasing treatment. Don’t worry about this. Degreasing is easy to do. As long as there is degreasing liquid for degreasing. The degreasing fluid is also easily available on the market. The requirement for degreasing is the requirement for the pH of the liquid. It must maintain a very high alkalinity, and the pH value must be stable at about 13. The time requirement is approximately 30 minutes. After this is done, the external surface must be cleaned to remove the impurities that are generated by the chemical reaction. Clean water must be used for cleaning to ensure a high degree of cleanliness on the surface of the heating tube.