连续退火炉内热喷涂炉底辊使用中的问题和涂层材料的开发  

The Problems of Coated Hearth Rolls in Continuous Annealing Furnace and Development of a New Coating

作　　者：高阳[1] 

机构地区：[1]大连海事大学金属工艺研究所,辽宁大连116026

出　　处：《中国表面工程》2005年第1期42-46,共5页China Surface Engineering

摘　　要：分析了连续退火炉内热喷涂镍铬碳化铬、钴基高温合金及氧化物陶瓷炉底辊在使用中的涂层脱落、结瘤等问题。介绍了超低碳素钢表面由于氧化锰的存在对涂层的影响。指出在高温区域使用的热喷涂炉内辊,应根据使用温度来选择喷涂材料,不当的使用不仅会造成涂层的脱落,甚至会影响钢板表面质量。介绍了新开发的耐氧化锰、适合于高温区域使用的涂层材料。The problems of hearth rolls in continuous annealing furnace with chromium carbide, cobalt-based alloy and others oxides coatings were discussed. The effect of manganese oxides on the coated hearth rolls was also analyzed. The alumina and chromium oxides on the surface of coatings are reacted easily with manganese oxide, which results in the damage of coatings and temperature is a key factor influencing the properties of coating on the hearth rolls. Finaly, a new coating by detonation thermal spraying for hearth roll used at high temperature was introduced.

关 键 词：连续退火炉 热喷涂 碳化铬 涂层材料 高温合金 超低碳 喷涂材料 炉底 耐氧化 氧化物陶瓷 

分 类 号：TG174.442[金属学及工艺—金属表面处理] TG155.1[金属学及工艺—金属学]