...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>High Temperature Material Processes >EFFECT OF FLUCTUATIONS OF DC CURRENT ON PROPER-TIES OF PLASMA JET GENERATED IN PLASMA SPRAYING TORCH WITH GERDIEN ARC
【24h】

EFFECT OF FLUCTUATIONS OF DC CURRENT ON PROPER-TIES OF PLASMA JET GENERATED IN PLASMA SPRAYING TORCH WITH GERDIEN ARC

机译：直流电流的波动对德国电离等离子体喷涂炬产生的等离子体射流性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Two different power supplies used for dc arc plasma spraying unit with water stabilized plasma torch were compared - classical thyristor controlled unit with the frequency of the current ripple 300 Hz and the rectifier with the high frequency converter and frequency of the current modulation 30 kHz. For the both types of power supply the arc characteristics were measured, time averaged plasma jet properties were determined from spectroscopic measurements and plasma jet fluctuations were analysed on the basis of diagnostics with an array of high frequency photodiodes. The properties of coatings sprayed with the two power supplies were compared. While time averaged profiles of plasma jet were the same for the both power supplies, the fluctuations of plasma jet differed substantially. Also the dynamic arc voltage characteristics of the arc were different and could be described by modified Cassie equation. The differences of properties of TiO_(2) coatings deposited with the use of the two power supplies were not significant.
机译：比较了用于带水稳定等离子炬的直流电弧等离子喷涂装置的两种不同电源-电流脉动频率为300 Hz的经典晶闸管控制单元以及高频转换器和电流调制频率为30 kHz的整流器。对于这两种类型的电源，都测量了电弧特性，通过光谱测量确定了时间平均的等离子束特性，并根据诊断结果使用高频光电二极管阵列分析了等离子束波动。比较了用两种电源喷涂的涂料的性能。虽然两种电源的等离子流的时间平均分布都相同，但等离子流的波动却大不相同。电弧的动态电弧电压特性也不同，可以通过改进的卡西方程来描述。使用两个电源沉积的TiO_（2）涂层的性能差异不明显。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号