| 基于激光熔覆技术的风机轴颈表面修复 |
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| 引用本文： | 杨根喜,郭华锋.基于激光熔覆技术的风机轴颈表面修复[J].江南大学学报(自然科学版),2009,8(2). |
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| 作者姓名： | 杨根喜 郭华锋 |
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| 作者单位： | 徐州工程学院,机电工程学院,江苏,徐州,221008 |
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| 基金项目： | 江苏省科技攻关重大项目 |
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| 摘 要： | 采用基于激光熔覆的方法实现了大磨损量的风机轴颈的修复.为了表征修复效果的优劣,对熔覆层的微观组织进行了测试,结果表明其微观组织多为等轴晶,在结合面位置有少量的枝晶,熔覆层和基体结合比较紧密,界面分明,形成了较好的冶金结合.显微硬度测试结果表明熔覆层的硬度较高,且只在一定范围内波动.而在过渡区显微硬度急剧下降,基体处显微硬度较低.试验结果表明激光熔覆技术可实现大磨损量轴颈的修复,修复表面组织细密、硬度高,且具有较高的耐磨性.
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| 关 键 词： | 激光熔覆 风机轴颈 大磨损量 快速修复 |
Surface Repair of Ventilator Axle Journal Based on the Technology of Laser Cladding |
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| YANG Gen-xi,GUO Hua-feng.Surface Repair of Ventilator Axle Journal Based on the Technology of Laser Cladding[J].Journal of Southern Yangtze University:Natural Science Edition,2009,8(2). |
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| Authors: | YANG Gen-xi GUO Hua-feng |
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| Institution: | Department of Mechanical and Electronic Engineering;Xuzhou Institute of Technology;Xuzhou 221008;China |
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| Abstract: | The repair of ventilator axle journal with serious wear was achieved by using the method of laser cladding.In order to enhance the repair quality,the microstructure measurement of cladding layer was proceeded.The experimental results show that the microstructure of cladding layer mostly is equiax crystal,and there are small quantity treelike crystals in the position of bonding surface.The bonding of cladding layer and matrix is very high,and their interface is very clear.This result shows that better metall... |
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| Keywords: | laser cladding ventilator axle journal large wear extent rapid repair |
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