| 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。 |
| 关键词: 炉内辊 连续退火 热喷涂 涂层 氧化锰 |
| DOI： |
| 分类号: |
| 基金项目: |
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| The Problems of Coated Hearth Rolls in Continuous Annealing Furnace and Development of a New Coating |
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GAO Yang
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Institute of Materials and technology Dalian Maritime University, Dalian 116026, China
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| Abstract: |
| 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. |
| Key words: thermal spray hearth roll pickup manganese oxide coating |
