论文部分内容阅读
由于保护渣空心颗粒常温强度不足等原因,在储存、运输过程中会发生部分粉化,对其生产使用造成了一定的影响。为了研究空心保护渣颗粒的微观结构对其常温强度的影响,采用扫描电镜、保护渣颗粒强度检测仪等设备对不同粒径的保护渣进行了微观结构和常温强度检测对比分析。结果表明,粒径在0.3~0.6 mm间的保护渣颗粒强度比其他粒径的常温强度好,提高空心颗粒保护渣中0.3~0.6 mm粒径的比例可有效防止保护渣在运输储存过程中的粉化,对保护渣的生产使用具有指导意义。
Due to the lack of room temperature strength of hollow mold flux particles and other reasons, some powdering occurs during storage and transportation, causing some impact on its production and use. In order to study the effect of the microstructure of hollow mold powder on the room temperature strength, the microstructure and room temperature strength of different sizes of mold fluxes were analyzed by scanning electron microscopy and powder density tester. The results show that the strength of the powder with a particle size of 0.3-0.6 mm is better than that of other particles at room temperature. Increasing the particle size of 0.3-0.6 mm in the hollow particles can effectively prevent the flux Dusting, the production of protective flux is of guiding significance.