Φ100mm以上大规格棒材心部裂纹产生机理研究

摘要

轧制工艺对棒材心部质量起着至关重要的作用,合理的轧制工艺能够压合原始坯料的心部缺陷；否则,会对棒材心部造成损伤,严重时会破坏棒材心部金属连续性,形成心部裂纹.%Rolling process is an important risk factor for the bar inner quality. Reasonable rolling process can pressure the heart defects of the original stock. Otherwise, it can damage the bar heart, If severe, it can damage metallic continuity of the bar heart, forming heart cracks.