摘要
从力学性能、化学成分、金相组织等方面进行对比试验,分析30MnSi盘圆加工成的管桩用PC钢棒镦头发生脆断的原因,提出工艺改进措施。
The Causes for brittle failure of PC steel bar heading machined from 30MnSi rod for pipe pile were analyzed through comparative test of mechanical properties, chemical compositions and metallurgical phases, and the countermeasures for process were put forward .
关键词
金属材料
PC钢棒
脆断
预应力
Metallic Material PC Steel Bar Brittle Failure Prestress
