negative polarity welding 中文意思是什麼

negative polarity welding 解釋
反極性焊接
  • negative : adj 1 否定的 否認的；拒絕的 （opp affirmative）； 反對的 反面的；消極的。2 （opp positive） 【電...
  • polarity : n. 1. 【物理學】（分）極性，磁性引力；（光的）偏極；極體；【數學】配極（變換）；【生物學】（莖與根的）反向性，極性。2. （性格的）正反對。3. （思想、感情等的）歸向，傾向。
  1. The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization

    其中變極性電源採用二次全橋逆變結構，一次逆變提供快速的響應速率並給二次逆變提供能量，二次逆變提供良好的變極性性能，使輸出能量最優化，並用其低頻電流特性減小電弧線能量，控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上，利用電流的高頻特性壓縮電弧，改善焊縫金屬結晶過程。
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