文档介绍：聚丙烯酰***生产工艺设计
合金涂层实验(Alloy coating experiment)
班级高聚物091 学生姓名刘爱楚学号 15 指导教师焦富强职称老师导师单位徐州工业职业技术学院论文提交日期 2011-3-23
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摘要
本文采用冷态涂敷方法,用水玻璃和松香作黏结剂,在45钢表面涂敷了镍基自熔性合金粉末Ni60和Ni60+WC25,利用炉内加热和感应加热的方法对涂层进行了重熔处理,并对重熔试样进行了销盘式磨粒磨损实验;对重熔涂层进行了显微硬度分析和金相组织分析,利用扫描电子显微镜(SEM)对涂层磨损后的形貌进行了分析。结果表明:重熔涂层具有很高的耐磨性,明显高于T10钢淬火后的试样;Ni60+WC重熔涂层的耐磨性稍高于Ni60重熔涂层;感应重熔涂层的耐磨性要高于炉内重熔的涂层;用松香作黏结剂的涂层稍高于用水玻璃作黏结剂的涂层;重熔涂层磨损表面的SEM形貌表明磨损属于磨粒磨损。
关键词:自熔性合金,感应重熔涂层,炉内重熔涂层,镍基WC,磨粒磨损 II
Abstract
Nickel base self-fluxed alloy powder Ni60 and Ni60+WC25 are spreaded
on the surface of 45 steel by cold-state coating technique has been shown in this paper,the bonding agents use water glass and rosin,and the coatings are remelted using furnace and induction heating methods,the wear-resistant of the remelting coatings are investigated by the abrasive wear machine. The hardness and microstructure of the coatings are also analzyed,the worn surface morphology of the coatings are observed by electron scanning microscope(SEM). The results indicate that the remelting coatings have very high wear-resistant,and apparently higher than the quenched T10 sample. The wear-resistant of Ni60+WC25 remelting coatings are better than that of Ni60 coatings,and the induction remelting coatings are better than that of the furnace remelting coatings,also the remelting coatings of rosin bonding agents are better than that of water glass bonding agents coatings. The SEM morphology of the worn surface shown it belongs to abrasive wear.
Keywords:self-fluxed alloy, induction remelting coatings, furnace remelting coatings,
WC nickel base,abrasive wear
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目录
第一章概论.........................................................1
课题背景及意义................................................1
本课题及相关领域的国内外现状及发展............................1
金属表面涂层强化发展现状.................................1
重熔方式简介.............................................2
重熔涂层的研究现状及发展.................................4
主要研究内容.................