PC钢棒生产工艺技术若干问题探讨  

Several Problems of the Production Technology for PC Steel Bar

作　　者：孙亚飞[1] 李景强[2] 郭喜荣[2] 

机构地区：[1]广东科学技术职业学院计算机与电子工程系,广东珠海519090 [2]沈阳超力钢筋有限公司,辽宁沈阳110179

出　　处：《金属热处理》2005年第3期40-42,共3页Heat Treatment of Metals

摘　　要：分析了影响PC钢棒质量的主要因素和降低延迟破坏的可能性.提出PC钢棒用钢的成分配比原则是:0.25%～0.40%C,＞1%Si,＜1%Mn,≤0.010%P,≤0.005%S.指出目前国产PC钢棒生产中存在的若干问题及可能的解决方法,并提出PC钢棒力学性能预报与控制经验公式.建议对国内PC钢棒产品行业标准YB/T 111-1997进行修订.Main factors affecting the quality of PC steel bars and the possibilities to reduce the delayed fractures were analyzed. It has been proposed that the principle for developing chemical compositions of PC bars should be 0.25% - 0.40% C, > 1% Si, less than or equal 1% Mn, [less-than or equal to] 0.010% P, [less-than or equal to] 0.005% S. The authors also pointed out several problems in PC steel bar production, and suggested some ways to solve the problems. Besides, the empirical formulas to predict the mechanical properties of PC steel bars are presented. Finally, this paper proposed that the standard of YB/T 111-1997 should be revised.

关 键 词：预应力混凝土用钢棒 延迟断裂 

分 类 号：TG142.41[一般工业技术—材料科学与工程]