高碳钢线材拉伸性能的影响因素  

Effect Factor of Tensile Properties on High Carbon Wire Rod

作　　者：覃之光[1] 夏艳花[1] 

机构地区：[1]武钢(集团)公司研究院,湖北武汉430080

出　　处：《武汉工程职业技术学院学报》2015年第1期1-4,共4页Journal of Wuhan Engineering Institute

摘　　要：为了研究影响高碳钢线材拉伸性能的因素,避免马氏体组织,进行了热模拟实验室实验及生产应用,结果表明:随着吐丝温度提高,钢材的抗拉强度、断面收缩率提高,珠光体片层间距减小,且冷速为15℃/s钢的抗拉强度优于10℃/s的钢,但吐丝温度达到940℃,因钢中出现马氏体组织,虽然抗拉强度仍有提高,但断面收缩率下降。生产中通过调整斯太尔摩入口辊速、风机风量来控制冷却速度和相变温度,可以达到所期望的金相组织和拉伸性能。The thermal simulation laboratory experiments and production application were carried out to study the factors affecting the tensile properties of high carbon wire rod and to avoid martensite. The re- sults showed that as the spinning temperature increased, the tensile strength, reduction of cross--section area increased while the pearlite interlamellar spacing decreased, and that the tensile strength at cooling rate 15 ℃/s was better than that at 10 ℃ /s. In the case of the spinning temperature reaching 940 ℃ due to existence of martensite, the tensile strength was improved, but the reduction of area decreased. In pro- duction, the entrance roll speed of Stelmor and the amount of breeze of the breeze machine could be adjus- ted to control the cooling speed and phase transition temperature, achieving the desired, microstructure and tensile properties.

关 键 词：高碳钢 线材 拉伸性能 影响因素 

分 类 号：TG142.14[一般工业技术—材料科学与工程]