The role and performance evaluation of magnesium oxide coating in silicon steel

The role and performance evaluation of magnesium oxide coatings in silicon steel involve multiple aspects,including

                The role and performance evaluation of magnesium oxide coatings in silicon steel involve multiple aspects,including:

                Function:

                High temperature annealing isolation agent:Magnesium oxide mainly acts as an isolation agent in the production of silicon steel,preventing adhesion of the strip steel during the high temperature annealing stage.

                Impurity removal effect:Magnesium oxide can react with silicon dioxide on the surface of silicon steel to form a magnesium silicate insulating layer,which helps to remove impurities such as nitrogen and sulfur from the steel.

                Enhancing magnetic induction strength:The formed magnesium silicate insulation layer can enhance magnetic induction strength,thereby improving the magnetic properties of silicon steel.

                Enhanced mechanical properties:The use of magnesium oxide can form an oriented film on the surface of silicon steel,enhancing its mechanical properties.

                Performance evaluation:

                Heat resistance and welding performance:Magnesium oxide in inorganic coatings has good heat resistance and welding performance,which is crucial for ensuring the stability of silicon steel during high-temperature processing.

                Coating adhesion:Magnesium oxide tension coating can improve the adhesion of the coating and enhance the adhesion between the coating and the silicon steel substrate by controlling the coating composition and adding materials such as phosphates.

                Iron loss reduction:In the context of"dual carbon",the development of low iron loss oriented silicon steel is a goal pursued by the industry,and magnesium oxide tension coating can help achieve this goal,thereby improving the efficiency of transformers and motors.

                Coating quality:The coating quality of magnesium oxide solution plays a crucial role in the quality of silicon steel products.The coating process needs to ensure the fluidity and uniformity of the magnesium oxide solution to avoid the formation of precipitates affecting the coating quality.

                In summary,the application of magnesium oxide coating in silicon steel has a significant effect on improving the electromagnetic performance,heat resistance,mechanical properties,and stability during processing of the product.In the production and quality control process,special attention needs to be paid to the coating quality and reaction effect of magnesium oxide coating solution to ensure that the final product can meet high-performance requirements.