bead shape 中文意思是什麼
bead shape
解釋
焊縫形狀-
As plasma, welding arc has well electric character. exterior magnetic field can affect shape and movement of welding arc. and the welding bead and drops transfer can also be changed to improve the welding process and advanced the productivity
電弧作為一種等離子體，具有優良的導電性，用外部磁場可以改變電弧的形態和運動特性，影響焊縫熔池和熔滴過渡形式，大大改善焊接工藝，提高焊接生產效率。 -
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。 -
So the shape and the penetration of welding bead will change, result in the lack of the penetration
因此焊縫熔深也發生變動，容易產生熔深不足等缺陷。 -
From internal details to entire bead shape, the glass beads are processed at each step completely by hands with great varieties different in style, size and form
簡介：從內部花型到整體每一個步驟都是純手工製造，品種多樣，大小各異。
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