How to solve the blackening of the electric heating tube of the ceramic heater
The ceramic heater uses the electric heating tube for a long time, and the electric heating tube will turn black over time. Next, Ssangyong will discuss with you how to optimize the blackening of the electric heating tube?
Simple steps for blackening treatment of electric heating tube:
Ceramic heater manufacturers
a The premise of the blackening treatment is to keep the surface of the heating tube clean and clean. If there are impurities on the surface, it will not be conducive to the treatment of blackening.
b The first thing to do is to clear the organic matter on the surface, the so-called degreasing treatment. Here everyone should rest assured that degreasing treatment is very easy to do. As long as there is degreasing liquid for degreasing treatment. The degreasing fluid is also easily available on the market. The requirement of degreasing treatment is the requirement of liquid pH, to maintain extremely high alkalinity, and probably the pH value should be stable at about 13. The time requirement is about 30 minutes. After this treatment, the surface should be cleaned to remove impurities generated by chemical reactions. Clean water must be used for cleaning to ensure a high degree of cleanliness on the surface of the heating tube.
c Pickling is required after alkaline washing. Because there are not only alkaline organic matter on its surface, but also acidic organic matter. So acid cleaning is also very necessary. The acidity requirement is a pH value of 3, and the processing time is no more than 10 minutes or so.
d Finally, the formal blackening process is about to be carried out. Ph guaranteed between 2~4. The time is 10 minutes. Clean it after processing.
Ceramic heater manufacturers