pilot arc surrent

Research on behaviour of pilot arc in plasma arc welding;

等离子弧焊维弧行为研究

In variable polarity plasma arc welding of aluminum, the stability and strained condition of variable polarity plasma arc were affected significantly by pilot arc.

在铝合金变极性穿孔型等离子弧焊接工艺中 ,维弧电源对变极性电弧的稳定和工件受力状态有显著影响。

Aimed at the defect of middle and small current pilot source in plasma arc welding, a new pilot source, adopting MOSFET as power switching device and PWM to regulate the pilot current, has been designed.

针对中、小电流等离子弧焊维弧电源的弊端,设计了一种以场效应管(MOSFET)为功率开关管、采用脉宽调制(PWM)方式调节维弧电流的维弧电源,其工作性能可靠,引弧性能好,体积小,效率高。

Efficacy of Immersion with Vibrio harveyi Bacterin in Large Yellow Croaker,Pseudodciaena crocea;

用灭活哈维弧菌菌苗浸泡免疫大黄鱼的研究

The variations on innate immune activities of the shrimp (Fenneropenaeus chinensis), which acutely infected by Vibrio harveyi or experienced break out of WSSV, were studied in this paper.

本文研究了哈维弧菌(Vibrio harveyi)急性感染和WSSV急性暴发后中国明对虾(Fenneropenaeus chinensis)非特异性免疫水平的变化。

This strain 2-3-a is Cellvibrio sp.

通过16s rRNA鉴定,该菌株属于纤维弧菌属。