锌锅感应加热器漏锌原因的分析与预防对策.pdfVIP

66 2010 5 锌锅感应加热器漏锌原因分析与预防对策 王 鲁, 张 伟 (宝钢新日铁汽车板有限公司, 上海 201900) : 介绍锌锅感应加热器的工作原 及内部结构通过对发生漏锌的感应加热器内部 耐材解体研究, 观察其微观结构以及结合面密封情况, 找出了容易产生漏锌的薄弱环节, 指出 结合面密封不良漏锌及熔沟耐材劣化造成漏锌是感应加热器漏锌的两大主要原因同时结合 现场经验介绍了感应加热器耐材制作时的要点安装过程中法兰面紧固的优化方法以及平时 使用维护中的注意事项, 从多方面预防感应加热器漏锌的发生 : 热镀锌; 锌锅; 感应加热器; 耐火材料; 泄漏 : TG 155. 5 : B : 1008- 0716( 2010) 05- 0066- 04 do :i 10. 3969 / j. issn. 1008- 0716. 2010. 05. 015 Z inc L eakage Cause Analysis and Preven tive M easures for an Induction H eater WAN G L u and ZHAN G Wei ( Baosteel-N SC A celor A utom otive S teel Sh eets Co. , L td. , Shanghai 20 1900, China) Abstract: T h is paper brie ly descr ibes the w ork ing principle and in terna l structure o a z inc pot induct ion heater. Through a d isintegra ted study on zinc leakage o an induction heater and its in terna l re ractory, the heater s m icrostructure together w ith its sur ace sealing. Som e w eak links w h ich lead to the z inc leakage w ere ound. T he authors po inted ou t that the wt o m ain reasons o r the zinc leakage are bad sea ling jo ints and deg radation o re racto ries. In com b ination w ith the w orksite experience, the autho rs a lso introduced som e key points w hen producing re racto ries, opt mi ization m e thods o r asten ing langes in the installation process, and som e po in ts or attention w hen m ainta in ing the induction heater. A ll these prevented the z inc leakage o the induction heater in m any w ays. K ey w ords: ho t-d ip ga lvan iz ing; z inc pot; induction hea ter; re ractory; leakage 0 1 , 1. 1 ,