During the electroplating process, chemical liquids and electrical equipment are also required for processing. Among them, the temperature of the chemical treatment liquid must be controlled. Therefore, it is necessary to use cooling equipment such as chillers to assist in processing.
Author: Marisa
1、 Principle of galvanizing
The principle of galvanizing is to coat the surface of steel with a layer of zinc to obtain a galvanized layer for the purpose of corrosion prevention.
2、 Galvanizing process flow
The galvanizing process generally includes the following steps: surface treatment, pre-treatment before electroplating, electroplating, post-treatment after electroplating, etc.
During the electroplating process, chemical liquids and electrical equipment are also required for processing. Among them, the temperature of the chemical treatment liquid must be controlled. Therefore, it is necessary to use cooling equipment such as chillers to assist in processing.
3、 Why do we need a freezer?
1)Temperature control
In the process of galvanizing and electroplating, the temperature of the liquid should be strictly controlled within a certain temperature range, which is an important factor affecting the quality of electroplating. If the temperature is too high, it will affect the quality and surface glossiness of the coating, and easily cause defects such as excessive zinc crystals, loose crystals, voids, scratches, etc., resulting in substandard coating quality.
The use of a freezer can effectively cool down the electroplating tank and maintain the stability of the liquid temperature. During the cooling process, the freezer can quickly remove the heat generated in the liquid to ensure that the liquid temperature is not too high, and can also provide a stable environment at the required temperature.
2)Coating quality
The use of a freezer can effectively solve the problems caused by unstable temperature during the galvanizing process, thereby improving the quality of the coating. A freezer can control the temperature of the liquid to evenly deposit electrolytes on the surface of steel, resulting in high-quality coatings.
In addition, the freezer can also reduce coating structure changes caused by liquid temperature fluctuations, avoiding surface defects or cracks in the coating.
4、 Conclusion
This article briefly introduces the principle and process of galvanizing, and analyzes the reasons and functions of using a refrigeration unit during the galvanizing process. In industrial production, galvanizing technology has been widely used to protect the surface of steel plates, reduce their corrosion and wear, and extend their service life. Therefore, refrigerators are of great significance in meeting the requirements for high-quality galvanizing.