湘钢高速线材的质量控制及产品现状

Quality Control and Products Present Situation of High Speed Wire Rod in Xiangtan Iron & Steel Co.

阐述湘钢高速线材生产线工艺装备、质量控制特点 ,产品的研究与开发、运行状况及发展方向。指出采用计算机控制步进式加热炉、钢坯内外加热均匀 ,钢坯中任意两点的温差不超过 30℃ ;将钢坯开轧温度控制在95 0～ 980℃可有效地防止表面脱碳 ;高线斯太尔摩控制冷却线根据用户对产品性能的要求可采用标准冷却方式 ,冷却速度在 4～ 10℃ /s,也可采用延迟冷却方式 ,冷却速度可低于 1℃ /s ,对线圈进行冷却 ,可保证得到理想组织和力学性能的线材。对湘钢现有高线产品品种及质量作了介绍 。

To relate the characteristics of process equipment and quality control,research and development,run situation and trend of high speed wire rod in Xiangtan Iron & Steel Co.It is pointed out that billets internal and external can be heated uniformly and the temperature difference between two points arbitrarily in billet is less than 30?℃ by adopting walking beam heating furnace with computer to control.Controlling billet blooming temperature at 950～980?℃ can prevent surface from decarbonising.The wire rod with ideal microstructure and mechanical property can be obtained by adopting either standard cooling mode whose cooling speed is at 4～10?℃/s or delay cooling mode whose cooling speed is at below 1?℃/s in terms of consumer′s requirements on products property in the Stelmor cooling line.The variety and quality of the high speed wire rod of the Co.at present are introducted.Some suggestions for development trend of the rod production of the Co. are put forward.