冷轧带钢板形辊激光熔覆表面强化试验  

Experiment on laser cladding surface strengthening of flatness roll for cold-rolled steel strip

作　　者：张帅 于华鑫 张桐源[1] 高心成 刘宏民 ZHANG Shuai;YU Hua-xin;ZHANG Tong-yuan;GAO Xin-cheng;LIU Hong-min(National Engineering Research Center for Equipment and Technology of Cold Rolling Strip,Yanshan University,Qinhuangdao 066004,Hebei,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China)

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [2]燕山大学亚稳材料制备技术与科学国家重点试验室,河北秦皇岛066004

出　　处：《钢铁》2021年第7期94-100,共7页Iron and Steel

基　　金：河北省“巨人计划”创新团队及领军人才基金资助项目(4570019)。

摘　　要：板形辊是生产高端冷轧带钢的关键装备,其表面性能对保证带钢产品表面质量和提高其自身使用寿命都至关重要。为了提高板形辊辊面的硬度和耐磨性,通过激光熔覆铁基耐磨合金的方式对其进行了表面强化处理,通过试验对比了激光熔覆强化辊面与淬火强化辊面性能。结果表明,在满足硬度要求的前提下,熔覆层的耐磨性比淬火层至少提高20.9%。为研发冷轧带钢板形辊表面强化技术开辟了一条新途径。The flatness roll is the key equipment for the production of high-end cold-rolled strip.Its surface performance is very important to ensure the surface quality of strip products and improve its own service life.To improve the hardness and wear resistance of the surface of the flatness roll,the surface strengthening treatment is carried out by means of the laser cladding iron base wear-resistant alloy.The properties of the surface strengthened by laser cladding and hardened by quenching are compared through experiments.The results show that the wear resistance of the cladding layer is at least 20.9% higher than that of the quenching layer under the condition of satisfying the hardness requirement.A new way for the research and development of surface strengthening technology of coldrolled strip steel flatness roll has been opened up.

关 键 词：冷轧带钢 板形辊 硬度 耐磨性 激光熔覆 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TG665[金属学及工艺—金属学] TG335.17