Hebei Messi Biology Co., Ltd. said that high -performance magnesium oxide with specific reaction, particle size and flowing characteristics can be used to manufacture transformer silicon steel sheets with grains. During the annealing process, the steel was treated with magnesium oxide coating to form a glass ceramic film (magnesium olive). The insulation performance of the film is very important, as is the choice of different magnesium oxide levels.
The surface quality of the orientation silicon steel mainly depends on the formation quality of the underlying layer of the magnesium. In normal production, the bottom layer defects such as dew crystals, black, red, blue, and color differences occur. In order to improve the underlying quality, this article is The impact of magnesium oxide activity, magnesium oxide coating process, and decarburization time on the bottom of the magnesium siliconate. As a result, the higher the activity of magnesium oxide, the better the underlying formation. Within the range, the water content is too low, which will cause the emergence of dew crystal defects; the extension of the decarburization time will be conducive to the formation of the underlying layer of magnesium silica.
A method of controlling the temperature of the magnesium oxide oxide in silicon steel belongs to the field of metallurgical technology. This control method is performed in a magnesium oxide coating system composed of liquid -distributing and circulating tanks. Among them, the temperature of the liquid temperature of each liquid and the liquid temperature of each cycle tank is controlled by the frozen machine. There is a first temperature regulating valve on the pipeline connecting liquid irrigation. There is a second temperature regulating valve on the pipeline connected to each circulating irrigation connection. Open the freezer and set the temperature to ‑10 ~ 0 ℃. Open the first temperature regulating valve and adjust the openness of the valve to 20 ~ 80%to control the temperature of the internal fluid of 0 ~ 15 ° C. Open the second temperature regulating valve and adjust the valve opening to 20 to 100%to control the circulating irrigation irrigation irrigation irrigation The inner liquid temperature is 5 ~ 20 ° C, and the surface coating of the orientation of Silicon Steel ends. The control method designed by the present invention realizes the control of the moisture content of magnesium oxide.