竹材表面金属涂层的高效热喷涂制备方法

编号 lyqk011193

中文标题 竹材表面金属涂层的高效热喷涂制备方法

作者 陈吉朋  王计安  汪令昊  周宏平 

作者单位 南京林业大学机械电子工程学院 南京 210037

期刊名称 世界竹藤通讯 

年份 2023 

卷号 21

期号 5

栏目名称 学术园地 

中文摘要 在竹材表面制备出金属涂层，可赋予竹材耐蚀、耐磨、导电、导热、电磁屏蔽等特殊功能，形成高附加值的竹基金属复合材料。然而，如何打破竹材和金属材料之间的天然壁垒、实现高效率涂层制备一直是亟待解决的难题。文章提出利用热喷涂技术在竹材表面进行金属涂层高效制备的新思路。以竹材为基体、以耐蚀Fe-Cr合金为涂层材料，采用电弧热喷涂方法开展了实验研究。结果表明：电弧热喷涂加工方法可成功在竹材表面制备出Fe-Cr合金涂层；当喷涂电压30 V、喷涂电流100 A时，涂层制备效率可达9 g/min，涂层表面粗糙度约为Ra 3.0 μm，平均厚度超过100 μm；控制热喷涂的加工时间和输入能量，可有效降低竹材表面烧蚀概率；尽管金属材料和竹材之间存在着天然不相容性，但是二者之间可通过咬合界面形成结合力，促使金属涂层稳定附着于竹材表面。

关键词 竹材  金属  竹基金属复合材料  热喷涂  结合界面 

基金项目 江苏省农业科技自主创新资金项目（CX（20）3067）。

英文标题 Preparation Method of High-Efficiency Thermal Sprayed Metal Coatings on Bamboo Surface

作者英文名 Chen Jipeng, Wang Ji, Wang Linghao, Zhou Hongping

单位英文名 School of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China

英文摘要 Preparing a metal coating on bamboo surface can endow bamboo with special functions such as corrosion resistance, wear resistance, conductivity, thermal conductivity, and electromagnetic shielding, forming a value-added bamboo-based metal composite material. However, breaking the natural barrier between bamboo and metal materials to achieve high-efficiency coating preparation has always been a problem to be solved. In this paper, thermal spraying technology is used for the preparation of metal coating on bamboo surface. Arc thermal spraying preparation experiments are conducted using Fe-Cr alloys as the coating materials. The results show that Fe-Cr alloy coating can be successfully prepared on the bamboo surface with arc spraying method. When the spraying voltage is 30 V and the spraying current is 100 A, the coating preparation efficiency reaches 9 g/min, and the surface roughness of the coating is about Ra3.0 μ m with an average thickness exceeding 100 μm. Controlling the processing time and input energy of thermal spraying can effectively reduce the ablation probability of bamboo surface. Although there is a natural incompatibility between metal materials and bamboo, the bonding force can be formed through the biting interface, which promotes the stable adhesion of the metal coating to the surface of bamboo.

英文关键词 bamboo;metal;bamboo-based metal composites;thermal spraying;bonding interface

起始页码 12

截止页码 18

作者简介 陈吉朋,工学博士,副教授,硕士生导师,主要从事先进制造技术和林业机械装备的教学和研究工作。E-mail:cjp@njfu.edu.cn。

DOI 10.12168/sjzttx.2023.07.27.001

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