摘要
通过市场调查和缺陷分析认为:影响酒钢研磨质量的主要缺陷是点状缺陷,点状缺陷分为两类,一类为设备原因造成的周期性缺陷;第二类为研磨抛光后出现的点状缺陷,通过SEM和晶相分析,缺陷不是晶间腐蚀和夹杂物引起。研磨抛光后出现的点状缺陷是热轧氧化铁皮结构与酸洗工艺的影响导致Rmax提高,较大的Rmax经过轧制,带钢表面凹凸点相互挤压覆盖使带钢表面平滑,在后续研磨中凸点挤压覆盖凹点处研磨脱落所产生。
Through the market investigation and analysis of the defects, it is believed that pitting defects is the main defect affecting grinding quality in JISCO. Pitting defects are divided into two kinds, one is the periodic defect caused for equip- ment reason, the other is the pitting defects occurred in grinding and polishing process. Through the SEM and the phase a- nalysis, the defects are not caused by intergranular corrosion and inclusion. Pitting defects after grinding and polishing is due to the influence of hot rolling oxide structure and pickling process resulting in increase of Rmax. After rolling, concave- convex points on surface of strip with high Rmax squeeze each other forming a facial smooth strip surface, but defects occur in the subsequent grinding process at the points where the salient point extrusions cover concave points resulting in stripping of convex point by grinding.
出处
《甘肃冶金》
2013年第1期39-42,共4页
Gansu Metallurgy
