脈沖電弧 的英文怎麼說
中文拼音 [màichōngdiànhú]
脈沖電弧
英文
pulsed arc-
Multiple functions available : start / crater arc current, increase / decrease time, base / crest value current, pulse frequency, pulse rate, post flow time, hf welding
功能豐富:起始/收弧電流、上升/下降時間、基值電流、峰直電流、脈沖頻率、占空比、滯后關氣時間分別可調,高頻引弧。Multiple funcyions available : start / crater arc current, increase / decrease time, base, crest value current, pulse frequency, pulse rate, post flow time, hf / friction welding, water / gas cooling
功能豐富:起始/收弧電流、上升/下降時間、基值電流、峰值電流、脈沖頻率、占空比、滯后關氣時間分別可調,高頻/接觸引弧、水冷/氣冷可供選用。Surface modification of h13 steel by arc deposition of al film and high current pulsed electron bombardment
13鋼電弧沉積鋁膜及強流脈沖電子束后處理的復合改性研究4 the research, development and production of surface engineering - new plating techniques ; electroless plating, composite electroplating ; aluminium and its alloys hard anodizing and colouring, metal surface ceramics and the surface modification of special nonmetal materials
鋁合金表面微弧氧化自潤滑陶瓷覆層新技術電沉積或脈沖電沉積制備多功能復合材料新技術無氰電鍍鋅-鋁合金和鋅-鈰合金新工藝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。In this thesis, a high - frequency variable polarity arc welding power supply was investigated, which consisted of two independent power sources, the variable polarity power supply and the high - frequency pulse one, having advantages both of them
本文針對鋁合金焊接研製了一種新型電源,所研究的高頻變極性弧焊電源採用雙電源結構,由變極性電源和高頻脈沖電源組成,綜合了兩者的優點。Some new phenomenons were discovered. the width of trigger current changes with the discharge condition, it is only 100u. s when let the trigger source work alone, but it can rise up to 300us with the arc current and magnetic field
在研究過程中發現引弧電流脈沖寬度受放電狀態的影響很大,在不引燃主弧時脈寬只有75 s ,而在引燃主弧並在加磁場的情況下會增大到300 s 。The dcep mig has the characteristic of deeper penetration which can reduce defective fusion and good arc stabilization. the dcen mig has the characteristic of shallow penetration of welding seam, and the welding wire has a high melting speed. so the variable polarity pulsed mig is a new technology for the welding of aluminium alloy sheet
變極性脈沖mig焊是一種新的焊接工藝方法,其綜合了dcep脈沖mig焊熔深較大、可以減少焊縫的熔合不良、電弧穩定性好和dcenmig焊焊縫熔深淺、焊絲熔化速度較快的特點,減小了焊縫的熔深,增加了焊絲的熔化速度,是一種適合於薄板鋁合金焊接的新方法。At last, an experiential power supply was made, and a series of experiments is done. a lot of high - frequency pulse current was superposed on dcen current, modulated the welding current waveform we required and optimized the energy distribution, which satisfied the basic requirement of cathode cleaning
最後製作了一臺實驗電源,並進行了一系列的電弧實驗,通過在變極性電源電流dcen基礎上疊加一系列脈沖電流,調制出所需電流波形,實現輸出能量的最優分配,在滿足陰極清理的前提下,最大限度地提高焊接效率。The technology not only reduces working procedure but avoids conversion errors caused by making transition model, and can ensure edm performance of the obtained electrode using the combination of puls
該工藝不僅減少了工序,還避免了因翻制過渡模型帶來的轉換誤差,將脈沖電鑄和電弧摘要噴塗紫銅背村相結合製造電極,能保證電極的電加工性能,可以實現高效率、高精度和低成本的快速模具製造。Pulse start metal halide lamp is featured on its arctube, it is formed by olive shape, the lumens is much higher than regular one, excellent color rendering capability, it is beloned to the categoryof higher encrgy saving lighting source
產品說明:特點:脈沖啟動型金鹵燈的特點是電弧管均為橄欖型燈泡,比普通的金鹵燈具有更高的光通,高的顯色指數。Design high frequency to increase voitage and pulse heat to strike arc, so with fine ability to start arc. so with fine ability to start arc. welding current is sufficient
採用高頻增壓引弧及脈沖熱引弧設計,起弧性能極佳,焊流電流充足,卓越的性能價格比。Abstract : this paper discussed process, characteristics of the equipment and the operating effects of large sized pulse jet bag filter with long bag and low pressure in the cleaning of 100t dc electric furnace
文摘:闡述了長袋低壓大型脈沖袋式除塵器在100t直流電弧爐的除塵系統中的流程、設備特點及運行效果。Suitable for welding of pulse mig / dc mag / co2 / flux - core wire / electric arc welding, and for welding of aluminum / titanium / copper alloys, low carbon steel, low alloy steel and stainless steel, as well as thin plate and medium thickness plate
可用脈沖mig /直流mag / co2 /藥芯焊絲/電弧焊等,分別對鋁、鈦、銅等有色金屬及其合金、低碳鋼、低合金鋼、不銹鋼等等多種材料進行高性能焊接以及薄板高速焊接和中厚板粗絲大電流高效焊等Vibration - resisting electricity contact pressure meter is used for occasion by environment quake vibration excle in pulsaling lash by medium - resistant and suddenly unload ; usually it is make use of form a complete set by relevant eletric device ( such as relay and contact appliance and so on ). so realized attain auto - control post a letter ( give an alarm ) for pressure system by survey. compare with ordinary for a special model electricity contact pressure meter, zhe indicator ' s function by survey pressure more stabilize, more accurate, and powerful of resist eletric arc, and it is use for even more long life
耐振電接點壓力表,適用於環境劇烈振動場合,可耐介質的高強脈動沖擊及突然卸荷;通常該儀表經與相應的電氣器件(如繼電器及接觸器等)配套使用,即可對被測(控)壓力系統實現自動控制發信(報警)的目的,與普通專用型電接點壓力表相比,指針測壓性能更穩、準,且抗電弧強大,使用壽命更長。Numerical simulation and analysis of pulsed direct current brazing temperature field with computer
脈沖直流電弧釬焊溫度場計算機模擬及分析Study of treat of pollution water containing p - nitrophenol with pulsed arc discharge plasma
脈沖電弧等離子體處理含對硝基苯酚廢水Pulsed are welding
脈沖電弧焊The temperature field around the crack tip in a current - carrying plate with a penetrated arc - crack under the action of transient pulse current was calculated and analyzed using complex function analysis solution
摘要給出含有圓弧裂紋的載流薄板在通入強大脈沖電流瞬間,裂紋尖端處溫度場分佈的復變函數解。After studying the precision of fdm process, a rapid edm electrode fabrication technology based on fdm is developed, the technology, which combined pulse - reverse electroforming with strengthening of copper wire - arc spraying, can obtained compact crystal electrode ' s working part, and strengthened filling part which has big adhesion strength, better electricity and heat conductivity, the edm performance of the obtained electrode reaches that of electrolysis copper electrode
繼fdm工藝精度研究后,開展了快速模具製造技術的研究,建立了基於fdm原型快速製造電加工電極的工藝。該工藝將脈沖電鑄和電弧噴塗紫銅背襯相結合,獲得了結晶緻密的電極工作層和結合強度高、導電與導熱性良好的電極背襯層,得到的電極達到了常規機加工紫銅電極的電加工性能。分享友人