摘要 为了解决传统涂层制备工艺不能兼顾涂层质量和生产效率的难题,基于PLC控制技术,研制了高效感应重熔自动化设备,实现了感应加热温度的自动化控制及感应重熔的高效化。利用该自动化设备制备了镍基感应重熔涂层,分别与采用火焰喷焊、等离子喷焊技术制备的涂层进行了微观组织、显微硬度对比分析,并对三种制备工艺的经济性及生产效率进行了对比分析。结果表明,与火焰喷焊涂层和等离子喷焊涂层相比,感应重熔涂层的微观组织更加致密细腻、孔隙率较小、显微硬度较高;其直接生产成本仅为火焰喷焊、等离子喷焊的30.6%、46.3%,而生产效率远高于其他两种工艺。因此,设计的高效感应重熔自动化设备不仅能够保障涂层质量,而且具有较高的生产效率和较好的经济性。 In order to solve the problem that coating quality and production efficiency cannot be achieved concurrently in traditional coating preparation process,ahigh efficient induction remelting automation equipmentwas developed based on PLC control technology,which realized the automatic control of induction heating temperature and the high efficiency of induction remelting.The microstructure and microhardness of Ni based induction remelting coating prepared by this automation equipment were compared with those prepared by flame spray welding and plasma spray welding,and the economy and production efficiency of the three preparation processes were compared.The results show that compared with the other two coatings,the microstructure of the induction remelting coating is more compact and fine,its porosity is smaller,and the microhardness is higher.The direct production cost of the induction remelting is only 30.6%and 46.3%of that of the flame spray and plasma spray welding,and the production efficiency is much higher than that of the other two processes.Therefore,the high efficient induction remelting automation equipment designed in this paper can not only guarantee the coating quality,but also has high production efficiency and better economy.
出处 《机械设计与制造》 北大核心 2021年第4期74-77,共4页 Machinery Design & Manufacture
基金 国家自然科学基金(51605230) 河南省高等学校重点科研项目(17B430003)。
关键词 高效感应重熔 自动化 涂层 微观组织 显微硬度 生产效率 经济性 High Efficient Induction Remelting Automation Coating Microstructure Microhardness Production Efficiency Economy
