稳定化处理工艺参数对PC钢绞线性能的影响  

Effect of Stabilizing Treatment Parameters on Properties of PC Steel Strand

作　　者：王福新[1] 袁康[1] 秦术宝 朱龙[3] 

机构地区：[1]北京科技大学,100083 [2]天津市恒久预应力材料有限公司,300400 [3]天津钢线钢缆集团有限公司,300400

出　　处：《金属制品》2002年第5期17-20,共4页Metal Products

摘　　要：通过对预应力钢绞线稳定化处理及破断应力松弛试验 ,分析了稳定化处理前后强度、塑性、松弛率指标的变化趋势 :PC钢绞线的松弛率在稳定化处理后 10 0 0h的松弛率比未处理的松弛率降低 71.0 1%～ 84 .84 % ,满足强度、塑性及应力松弛要求的最佳工艺参数为工艺温度 375℃ ,张应力为 0 .4 8σb。To make experiments on the stabilizing treatment of PC steel strand and the breaking stress relaxation.The change trend in strength,plasticity and relaxation rate of the PC steel strand before and after stabilizing treatment are analyzed.The 1?000?hour stress relaxation rate of the strands decrease 71.01%～84.84% after stabilizing treatment than before.The optimum process parameters which can meet the needs of strength,plasticity and stress relaxation are that the stabilizing temperature is at 375?℃ and the tensile stress is 0.48 σ b.

关 键 词：PC钢绞线 性能 稳定化处理 工艺参数 

分 类 号：TG356.46[金属学及工艺—金属压力加工]