管桩钢筋延迟脆断的原因研究

Studies on cause to the delayed brittle fracture of reinforcing steel barfor pipe peg use

针对PC钢棒延迟脆断的现象,从化学成分、金相组织、表面质量以及后续热处理加工工艺等方面进行分析探讨,提出一些积极的预防措施。

In light of the delayed brittle fracture of the PC steel bar analytical studies on the chemical compositions, metallographical structre, surfacial quality and consequential heat treatment of the steel have been made and a series of active preventative measures put forward accordingly as well.