through weld 中文意思是什麼
through weld
解釋
穿透焊縫-
Butt welding method is to weld neon lamp with resistor through butt weld machine without sparks. the welding is reliable with tiny welding point, size is as per customer s requirements
焊接氖燈熒光輝光燈採用無火花電焊接機將氖燈或熒光輝光燈與電阻進行焊接焊接可靠焊點小無虛焊脫焊現象。 -
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。 -
Specification for welding primers and weld - through sealants, adhesives and waxes for resistance welding of sheet steel
板材鋼電阻焊用焊接底劑焊透密封劑粘合劑和蠟規范 -
The opening stress and the life of crack growth is calculated and compared with the test results and the experience formula. the feasibility of the newman theory of opening stress used in the high strength steel is validated. then through the slice synthesis method, the three dimension surface crack of the weld joint of cone - cylinder is decomposed into many plane through cracks
本文將基於裂紋閉合現象建立的帶狀屈服模型，用在平面貫穿裂紋中，計算此時的裂紋張開應力和疲勞裂紋擴展壽命，與試驗結果和經驗公式比較，驗證newman裂紋張開應力理論在高強鋼中的可行性；然後，用切片合成法，把潛艇結構凸錐柱結合殼焊縫處的三維表面裂紋分解成平面貫穿裂紋，用帶狀屈服模型的理論來分析平面貫穿裂紋，得到裂紋沿深度方向的擴展速率，進而得到潛艇結構的疲勞壽命。 -
An additional experiment is performed, and the weld specimens and heat effected zone specimens of dh36 steel are researched, through which the outcomes from the formulas of the standard and from other formulas is compared, which demonstrates the validity of standard test means for ctod and j - integral
另外還進行了一個附加試驗，對具有不同尺寸的dh36鋼的焊縫試樣和熱影響區試樣進行了研究，將本文所用標準中公式的計算結果與其它經驗公式的計算結果進行了對比，進一步證明了ctod和j積分標準試驗方法的有效性。 -
A system for the weld power source was established with digital signal processor ( dsp ), and variable polarity power supply output, high - frequency pulse current, protection and process control were fulfilled with the software all, and modulate low frequency pulse current by means of amplitude modulation, through which it could also control the shape of weld seam like the low frequency pulse current welding
在模擬控制器基礎上引入了dsp數字控制技術，用軟體編程實現了電源的變極性輸出、高頻脈沖電流的疊加及保護和電源的時序控制，使之能夠在大尺度上調制出低頻脈沖，控制焊縫成形。
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