用于羟基磷灰石冷喷涂的超声波送粉系统

›› 2012, Vol. ›› Issue (06): 1402-1408.

用于羟基磷灰石冷喷涂的超声波送粉系统

张雷, 耿伟强, 鲍勇吉, 赵继

吉林大学机械科学与工程学院, 长春 130022

收稿日期:2011-06-03 出版日期:2012-11-01
通讯作者: 张雷(1970-),男,教授,博士生导师.研究方向:智能精密制造.E-mail:profzhanglei@yahoo.com.cn E-mail:profzhanglei@yahoo.com.cn
基金资助:
国家自然科学基金项目(50875109).

Ultrosonic powder feeding system in hydroxyapatite cold spraying equipment

ZHANG Lei, GENG Wei-qiang, BAO Yong-ji, ZHAO Ji

College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China

Received:2011-06-03 Online:2012-11-01

摘要/Abstract

摘要： 为了满足羟基磷灰石冷喷涂工艺对微量送粉的要求,开发了超声波送粉系统,并对其送粉原理和送粉能力进行了理论分析和试验研究。研究结果表明:系统送粉能力主要与驱动电源输出的电压和频率、压电陶瓷片的性能和结构参数以及输送管的长度和阻尼系数等因素有关。通过试验,获得了各因素对系统送粉速率的影响规律。本文的送粉系统对羟基磷灰石粉体的最小送粉速率约为0.002 g/s,最大送粉速率约为0.25 g/s,并且送粉过程响应迅速,可以满足微量送粉的要求。

关键词: 机械制造工艺与设备, 粉体输送, 超声振动, 衰减行波, 羟基磷灰石

Abstract: In order to meet the requirement of micro-feeding for the hydroxyapatite cold spraying process, an ultrasonic powder-feeding system was developed. Theoretical analysis and experimental research on the powder-feeding principle and capability of the system were performed. The results showed that the feeding capacity of the system is related to the voltage and frequency of the driving power, the performance and structural parameters of the piezoelectric ceramics, the length and damping coefficient of the feeding tube. From the experiments, the effects of the factors on the feeding rate were analyzed and discussed. For the hydroxyapatite powder, the minimum feeding rate of the developed system is about 0.002 g/s and the maximum about 0.25 g/s. The powder feeding process of the system responses rapidly, meeting the micro-feeding requirements.

Key words: mechanical manufacture process and equipment, powder feeding, ultrasonic vibration, lossy traveling wave, hydroxyapatite

中图分类号:

TH165.1

张雷, 耿伟强, 鲍勇吉, 赵继. 用于羟基磷灰石冷喷涂的超声波送粉系统[J]. , 2012, (06): 1402-1408.

ZHANG Lei, GENG Wei-qiang, BAO Yong-ji, ZHAO Ji. Ultrosonic powder feeding system in hydroxyapatite cold spraying equipment[J]. , 2012, (06): 1402-1408.

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