摘要
在自制的高频电流在线加热复合轧制装置上进行了不锈钢/碳钢复合带的制备工艺研究.根据温度场数值模拟的结果确定了高频电流的主要参数,结合常规热轧复合的对比实验,分析了高频电流在线加热工艺对不锈钢/碳钢复合带的组织与性能的影响.结果表明:该工艺可在(25—30)%的压下率下制备出高性能的不锈钢/碳钢复合带,复合带的硬化程度较低,避免了常规热轧复合带在高温退火后界面出现的脆性"贫碳层",退火后复合带的延伸率可达40%以上.高频电流在线加热工艺有效解决了各阶段母材氧化的问题,不锈钢表面的氧化程度很低,该工艺的加热区温度分布合理,具有加热速度快,热效率高的特点.
By using a self-manufactured device the preparation technology of stainless main parameter of high-frequency current was high frequency current heating on-line/roll-bonding steel/carbon steel cladding strip was studied. The determined according to the results of simulation of temperature field. The effect of on-line process on the microstructure and property of cladding strip were analyzed by comparing with the general hot rolling bonding. The results showed that the prepared cladding strip has high properties, such as the reduction rate of （25-30）%, low work-hardening, no brittle ＂ carbon-poor layer ＂ on the interface, and the elongation exceeding 40% after annealing. The oxidation problem of base metal under all the stages was solved and only a little oxidation appeared on the surface of stainless steel. The distribution of temperature in heating zone is reasonable, so the process has the predominant characteristic of quick heating rate and high heat efficiency.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第10期1048-1052,共5页
Acta Metallurgica Sinica
基金
国家自然科学基金项目50174019
辽宁省博士启动基金项目20061017资助
关键词
高频电流在线加热工艺
不锈钢/碳钢复合带
氧化
压下率
high-frequency current heating on-line process, stainless steel/carbon steel cladding strip, oxidation, reduction rate
