热交换器搪瓷界面过渡层结构研究  

Study of the Transitional Layer Structure of Gas-Gas Heater Enamels

作　　者：童丽萍[1] 万钧[1] 钱蕙春[1] 蒋伟忠[1] 刘亦非[1] 吕真[1] 罗东[1] 陈小英[1] 王钢[1] 

机构地区：[1]东华大学先进玻璃制造技术教育部工程研究中心,上海200051

出　　处：《玻璃与搪瓷》2009年第2期10-13,17,共5页Glass & Enamel

摘　　要：采用合理配方设计,使用一次涂搪工艺,制备出了同时具有优良的密着性能、热稳定性能和耐酸性能的热交换器(又称GGH,gas-gas-heater)搪瓷板。采用扫描电子显微镜和能谱仪对GGH搪瓷板进行界面过渡层显微结构分析和元素表征。显微结构分析表明:GGH搪瓷板界面存在过渡层,过渡层结构呈现咬合状。元素分析表明:搪瓷层和金属层间存在元素的相互扩散,在宏观性能上表现为GGH搪瓷板密着强度为1级,说明瓷釉层与钢板密着优良。The composition formula and one -fire enamal technology were used to prepare the heat interchanger enamel panels, named GGH, i.e. gas - gas heater element, which had good adherence, thermal shock resistance and acid resistance. The scanning electron microscope and energy spectrum were used for investigating microstructure and element distribution of the interface transitional layer. The results showed that interface transitional layer had the interlocking structure and element interdiffused distribution between enamel coating and base metal. This microstructural characteristic results in strong adherence strength of GGH enamels.

关 键 词：搪瓷 密着 过渡层 耐热急变 

分 类 号：TQ171.73[化学工程—玻璃工业]