roll marks

Defects such as scales , patterns , roll marks and so on are unavoidable on the hot strip steel surface .

热轧带钢表面常常存在氧化铁皮、翘皮、辊印等缺陷。

Mechanism and Control of Roll Marks on Surface of Ferritic Stainless Steel with Medium and High Chromium

中高铬铁素体不锈钢表面辊痕形成机理及控制

The annealing treatment at 300 ℃ for 1h could prompt the enrichment of microelements at dislocations , but could not enrich the microelements along the roll marks .

300℃退火1h可以促使铝箔中的微量元素向表面位错附近的富集，但不足以实现向机械划痕区域的富集。

The annealing treatment at 500 ℃ for 1h could not only enrich the microelements along the roll marks , but also reduce the equilibrium segregation concentration of the microelements at the foil defects which distributed more uniformly on the surface .

500℃退火1h不仅可以实现微量元素向机械划痕区域的富集，而且还会降低缺陷区域平衡偏聚的浓度，使铝箔表面微量元素的分布趋于均匀化。