電弧極 的英文怎麼說
中文拼音 [diànhújí]
電弧極
英文
arc electrode-
Graphite electrodes for electric arc furnaces - dimensions and designation
電弧爐用石墨電極.尺寸和命名Welding consumables - determination of moisture resistance of manual metal arc welding electrodes by measurement of diffusible hydrogen iso 14372 : 2000 ; german version en iso 14372 : 2002
焊料.通過測量可擴散氫測定手工金屬電弧焊電極的抗濕Properties of the cathode fall region of an electric arc
電弧陰極區性質的研究An electric arc is struck by contacting the electrodes
接觸電極便擊出電弧。Gas metal arc welding of galvanized steel, 10 through 18 gage, in the as - welded condition, with or without backing
在焊接條件下有或沒有墊板10到18規格的鍍鋅鋼的氣體保護金屬極電弧焊Based on these algorithms, and consider the property of the arc image, we proposed a new multi - stage algorithm. the proposed algorithm involves the class separability criterion in pattern recognition, and double - threshold method and non - maximum suppression proposed in canny operator. we apply this algorithm to the arc image, and get a better result
並在這些演算法的基礎上，基於電弧圖像的特點，提出了一種改進的多階段邊緣檢測演算法，這個演算法中應用到模式識別中的類別可分離判據的理論，並使用了canny演算法所中提出的雙閾值法和非極大值抑制方法等等。This paper introduces a simulation experimental system of 3 - phase ac arc furnace, developing a dsp based electric - arc furnace electric pole fluctuation control system
摘要介紹一種按照實際交流電弧的特性設計的三相交流電弧爐模擬試驗系統，針對電弧爐電極升降控制提出了一種基於dsp的控制方案。Arc steel - making stove ' s electrode elevating control system
電弧煉鋼爐電極升降智能控制系統Stainless steel welding electrodes for shielded metal arc welding
屏蔽金屬電弧焊不銹鋼焊接電極Based on the theory of piecewise - linear, the paper carries through the research of model self - adaptive control to electric arc - furnace electrode regulator system ( eafers ), and the digital self - adaptive control law of reference model is deduced. then, we designed the software simulation system of eafers according to the law, though which we studied the character of eafers. finally, a set of physical model of eafers, which is realized by hardware circuit, is designed according to the former research
本文首先應用分段線性化理論，對電弧爐電極調節系統的模型參考自適應控制演算法進行了研究，推導出全數字化的模型參考自適應律；然後根據推導出的自適應律成功的設計出了的軟體模擬系統，用軟體對電弧爐電極控制進行了模擬研究；最後利用電子電路構造出一套完整的電爐煉鋼電極控制硬體模擬系統，對電爐電極調節進行了實驗室電路模擬研究。The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下：在人工氣候室內，根據不同覆冰絕緣子正、負極性下的閃絡試驗結果，得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓；正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應；覆冰較少時，合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法，對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明，直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低，且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。Nominal dimensions of cylindrical machined graphite electrodes with threaded sockets and nipples for use in electric arc furnaces
電弧爐用的帶螺紋座和連接銷的圓柱形機加工石墨電極的公稱尺寸Mag welding solid wires for molybdenum steel and chromium molybdenum steel
鉬鋼及鉻鉬鋼金屬極活性氣體保護電弧焊實心焊絲Mag welding flux cored wires for molybdenum steel and chromium molybdenum steel
鉬鋼及鉻鉬鋼金屬極活性氣體保護電弧焊管狀焊絲Mag welding solid wires for mild steel and high strength steel
低碳鋼及高強度鋼用金屬極活性氣體保護電弧實心焊絲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。Magnetic head is designed by six magnetic poles in symmetrical distribution, the design of excitation loop and excitation angle makes magnetic field act on welding arc region which could control welding arc effectively. the insulation, cooling and hermetization of magnetic head avoid the influence on magnetic field of outside ; miniaturization design of magnetic head could achieve different welding process
磁頭裝置採用六磁極對稱勵磁方式設計，勵磁線圈和勵磁角度的設計使產生的磁場恰好作用於焊接電弧區域以實現對電弧的有效控制;磁頭的絕緣，冷卻，密封設計避免了焊接過程中外界因素對磁場的干擾;磁頭整體的小型化使該裝置可以實現多種形式的焊接工藝。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。The system uses the popular double - deck controlling, namely the host communicates online with plc, at the same time it communicates with other stations by tcp / ip protocol. the electrodes regulate timely, quickly and true, with controlling three - phase voltage and current, so that power is stable comparatively
本系統合理控制三相電流、三相功率的大小，從而電極能夠實時、快速、準確地按照冶煉工藝要求進行調節，使電弧功率穩定在一定的范圍內，獲得期望的控制效果。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。分享友人