高压锅炉管微裂纹产生的原因及预防

Reasons for the Microflaw’s Occurrence in High Pressure Boiler Tube and its Preventive Measures

分析了高压锅炉管在张减机轧制过程中微裂纹产生的原因，提出了相应的预防措施并取得了很好的效果。

The reasons for the microflaw’s occurrence in high pressure boiler tube during rolling stretch reducing mill are described.At the same time some preventive measures are proposed, and good results are achieved.