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高频脉冲微束等离子焊接电弧行为及其工艺的研究
引用本文:赵家瑞,胡绳荪,孙栋,路登平.高频脉冲微束等离子焊接电弧行为及其工艺的研究[J].焊接学报,1989,10(4):209-214.
作者姓名:赵家瑞  胡绳荪  孙栋  路登平
作者单位:天津大学 教授 (赵家瑞),天津大学 讲师 (胡绳荪),天津大学 助工 (孙栋),天津大学 讲师(路登平)
摘    要:

关 键 词:高频  脉冲  等离子  电弧  焊接
收稿时间:1989/8/25 0:00:00

STUDIES OF THE BEHAVIOUR OF HIGH FREQUENCY PULSED MICRO-PLASMA WELDING ARC
Zhao Jiarui,Liu Shengsun,Sun Dong and Lu Dengping.STUDIES OF THE BEHAVIOUR OF HIGH FREQUENCY PULSED MICRO-PLASMA WELDING ARC[J].Transactions of The China Welding Institution,1989,10(4):209-214.
Authors:Zhao Jiarui  Liu Shengsun  Sun Dong and Lu Dengping
Affiliation:Tianjin University
Abstract:In this paper, the temperature field of DC high frequency pulsed microplasma ar(?) was studi(?)d by the infra-red photograph microcomputer image processing method. The arc and gas flow were observed by the laser display technique. The axial pressure of arc was measured by a micro-pressure measuring instrument. Results show that the axial temperature gradient in the center of hi h frequency arc is lower than that of DC arc. When the pulse frequency is over 10 kHz, the diameter of high frequency arc constricts with the frequency increment. This is more so at low current. The gas flow surrounding the high frequency arc is as stable as that in the case of DC arc. The maximum axial, pressure of the high frequency arc is higher than that of the DC arc. When the pulse frequency is over 10 kHz, the maximum axial pressure of high frequency arc decreases with the increase of pulse frequency.
Keywords:High frequency  Plasma arc welding procedur(?)
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