汽车钢板镀锌机组热工设备初探  

Preliminary Study on Annealing Furnace of CGL for Automobile Strip

作　　者：杨柏松 白若昕 唐奇毅 YANG Baisong;BAI Ruoxin;TANG Qiyi(Chongqing CISDI Thermal&Environmental Engineering Co,Ltd.,Chongqing 401122,China)

机构地区：[1]重庆赛迪热工环保工程技术有限公司,重庆渝北401122

出　　处：《工业加热》2025年第2期46-50,共5页Industrial Heating

摘　　要：介绍了汽车板对退火炉生产工艺及装备配置提出的最新要求;论述了明火DFF无氧化炉生产汽车板高强钢的合理性,主要包括直燃段炉内清洗功能和预氧化-还原退火功能;对比了汽车面板和高强钢的不同工艺路线;重点论述了全辐射管镀锌退火炉的预氧化-还原工艺、对比和论证了各种高速冷却段的优化设计、(Q&P)(Quenching and Partitioning)的碳配分及二次感应加热的优化设计,认为露点控制是实现预氧化的最有效途径;同时强调针对汽车面板全线所需要仪表的特殊性要求包括:带钢清洗后清洁度检测仪表、在线锌液分析仪表、锌层测厚仪表(闭环)、钢板粗糙度检测仪表、机械性能检测仪表、在线表面打磨及缺陷检测系统、测宽测厚仪表、油膜测厚仪等,这些仪表针对镀铝硅、DP、QP以及汽车面板的使用要求是有区别的,通过优化辐射管退火炉的工艺设计,实现在同一条机组生产汽车面板和高强钢的工艺要求。It introduced the latest requirements of the furnace production process and equipment configuration;this paper discusses the rationality of high strength steel produced by DFF furnace,it mainly includes the furnace cleaning function and the pre-oxidation-reduction annealing function;compare the different process routes of automobile panel and high-strength steel;this paper mainly discusses the pre-oxidation-reduction process of galvanized annealing furnace,compares and demonstrates the optimal design of various high-speed cooling sections,the carbon partition of(Q&P)(Quenching and Partitioning)and the optimal design of secondary induction heating,considering that dew point control is the most effective way to achieve pre-oxidation;at the same time emphasizes the particularity of automotive panel all instrument include:strip after cleaning cleanliness detection instrument,online zinc liquid analysis instrument,zinc layer thickness meter(closed loop),steel roughness detection instrument,mechanical performance testing instrument,online surface grinding and defect detection system,width thickness meter,oil film thickness meter,etc.,these instruments are different for the use of aluminized silicon,DP,QP and automotive panels,by optimizing the process design of the tube annealing furnace,to achieve the process requirements for the production of automobile panels and high-strength steel in the same unit.

关 键 词：淬火-配分 感应加热 喷嘴 冷却速度 

分 类 号：TG15[金属学及工艺—热处理]