取向硅钢板坯高温抗氧化涂料

High-temperature oxidation resistance coating for silicon steel

摘要: 为了提高取向硅钢板坯的抗高温氧化性能,采用浆料法制备MgO-Cr₂O₃系的取向硅钢用高温抗氧化涂料.通过氧化增重、X射线衍射和电子扫描电镜等测试方法,研究涂层保护下的取向硅钢在不同温度下的氧化增重规律以及1400℃下氧化产物截面形貌、元素分布特征.结果表明,该涂料对于取向硅钢具有良好的高温防护功能,且具有宽泛的抗氧化区域.

Abstract: An anti-oxidation coating, mainly composed of MgO and Cr₂O₃, was prepared by a mixing method. XRD and SEM were used to study the difference of mass increment, oxidative products and element distribution between samples with and without coatings at 1400℃. The results show that the coatings are environmental-friendly and cost effective and also have good effect on grain-oriented silicon steel, with a wide range of anti-oxidation applications.