摘要
为有效提升饮料灌装机内壁的耐磨性和耐腐蚀性,基于等离子喷涂技术制备一种陶瓷涂层。在不同工作电流、喷涂距离和喷涂速度条件下,测试并分析电弧压力、涂层粗糙度和孔隙率等特性的变化规律。制备不同层厚的涂层试样,对其微观形貌、显微硬度和磨损率进行对比分析,得出喷涂热源对多层涂层力学性能的影响机理。将涂层试样分别置于弱酸(醋酸溶液)、弱碱(苏打水溶液)和80℃恒温环境下进行腐蚀处理,研究涂层磨损形貌及原理。研究表明,陶瓷涂层可将母材表面硬度提升43.4%,磨损率降低22.6%,腐蚀前后的粗糙度偏差低于5%,显著改善力学性能和耐腐蚀性能,对弱酸、弱碱和变温环境适应能力强。研究为食品机械表面强化技术的发展提供借鉴。
In order to effectively improve the wear and corrosion resistance of the inner wall of the beverage filling machine,a kind of strengthened ceramic coating was prepared by the plasma spraying technology.Under the conditions of different working current,spraying distance and spraying speed,the changing laws of the characteristics such as arc pressure,coating roughness and porosity were tested and analyzed.The coating samples with different thicknesses were prepared,and their morphology,micro hardness and wear rate were measured.The influence mechanism of spraying heat source on mechanical properties of the coating was studied.By placing the coating samples in weak acid(acetic acid solution),weak alkali(soda water solution),and 80℃constant temperature environment for corrosion treatment,the wear morphology and principle of the coating were studied.The research shows that ceramic coatings can increase the surface hardness of the base material by 43.4%,reduce the wear rate by 22.6%,ensure the roughness deviation before and after corrosion is less than 5%,significantly improve mechanical properties and corrosion resistance,and have strong adaptability to weak acid,weak alkali,and variable temperature environments.The research provides reference for the development of surface strengthening technology in food machinery.
作者
葛伟伟
李庆昕
赵鑫鑫
周淑芳
GE Weiwei;LI Qingxin;ZHAO Xinxin;ZHOU Shufang(Qingdao Huanghai University,Qingdao 26555,China;Qingdao Shuangxing Tire Industry Co.,Ltd.,Qingdao 26555,China)
出处
《包装与食品机械》
CAS
北大核心
2023年第5期46-51,共6页
Packaging and Food Machinery
基金
西海岸新区高校校长基金(XZJJZY02)。
关键词
灌装机
涂层
耐磨性
力学性能
耐腐蚀性
filling machine
coating
wear resistance
mechanical properties
corrosion resistance
