電弧作用 的英文怎麼說

中文拼音 [diànhúzuòyòng]
電弧作用 英文
arcing
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 弧 : 名詞1. [數學] （圓周的任意一段） arc2. （古代指弓） bow
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  1. A new model of distribution system is presented, whereby, the feeder switches are regarded as the vertcxes of a graph and the feeder lines are regarded as the arcs. the method to model distribution networks by adjacent table is put forward. therefore, storage size is reduced and calculation is speeded up

    建立了配電網的簡化模型，即將饋線開關當作圖的頂點、將饋線當作弧，採用等長鄰接表的數據結構來描述配電網，大大減少了佔用空間和提高了查詢速度，並建立了基於等長鄰接表的配電網路拓撲演算法。
  2. 3. the arc erosion of cuw80 / crcu integrated contact is primary forming the thicker shell and th shell flake off. 4

    摘要（ 3 ） cuw8o主要是以產生較厚的以w為主的殼層，然後在電弧的反復作用下，殼層剝落，如此循環，導致觸頭的最終燒損。
  3. Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical

    通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出：弧根周圍空氣的熱電離導致了電弧的發展，靜電場力對電弧的發展起到了加速作用，電擊穿僅發生在閃絡最終的跳躍階段；通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數，得到了不同階段電弧（電弧起弧階段、電弧發展階段及完全閃絡）的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。
  4. Specially for welding of thin and mid - thickness steel ; suitable for mag co2 welding of low carbon steel and low alloy steel inner wire feeder structure ; zx5 series thyristor dc arc welder ac arc welder with single phase moveable coil for sma mma welding ; suitable for welding low carbon steel, low alloy steel ; suitable for welding mid - thickness steel

    可用於所有牌號焊條的直接手工電弧焊接引弧容易，無須用戶調節可遠距離調節焊接電流，便於焊工操作焊機動特性好，性能柔和，電弧穩定焊接熔池平靜，飛濺小，不咬邊，焊縫成形美觀。
  5. 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。
  6. 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。
  7. The material of electro - fused magnesia sinter is selected from special grade a natural magnesite or high - purity caustic calcined magnesite, which is fused in arc furnace to finish the products. the products possess high purity, crystal with and compact texture, have high heat - vibration steady and cinder corrosion resistant, it is used for making high quality magnesite bricks, magnesia - carbon bricks

    電熔鎂砂是用精選的特a級天然菱鎂石，在電弧爐中熔融制得，該產品具有純度高，結晶緻密，抗渣性強熱震穩定性好，是製作高檔鎂磚，鎂碳磚及不定形耐火材料的重要原料。
  8. Arc - grounding fault line selection is the paper ' s key point and innovative point about small current grounding power systems. a lot of simulations are made based on the change rule and the character of fault voltage, fault current. the simulation study declare that the use of the method of wavelet analysis can select the fault line when the arc - grounding fault take place, it will play a important directive role in the research of the protection equipment

    對小電流接地系統電弧故障的選線模擬是本文的重點，也是一個創新點，本文從研究的角度，在深入分析電弧接地時故障電壓、電流的特點和變化情況的基礎上，進行了大量的選線模擬，模擬表明電弧故障時，小波分析方法也能準確地選出故障線路，這對研製高性能的接地保護裝置將起到重要的指導作用。
  9. Computational results show that the axial gas flow and the rotary flow, especially the axial gas flow plays the main role on the arc stability. the rotary flow can larger the region of the arc stability

    研究結果表明，縱向氣流和旋轉氣流對電弧的穩定性確實起作用，尤其是縱向氣流，起著重要的作用，而旋轉氣流對電弧的穩定區域的增加效果顯著。
  10. The linear time perturbation theory is used in this paper, the effects of rotary flow, axial flow and both of them to the arc stability are discussed respectively. the corresponding equations and the boundary conditions are deduced

    本文採用與時間有關的線性微擾理論，分別討論了旋轉氣流、縱向氣流的作用，以及它們共同的作用下電弧螺旋不穩定性的特徵。
  11. As the electric power & electronic technology is used widely in low voltage area, the properties of voltage and current in normal working conditions of electrical appliance closely resemble or mimic the un - normal properties created by the arc fault, so it is difficult to distinguish between normal and un - normal cases

    隨著電力電子技術在低壓領域的廣泛應用，一些電器正常工作時的電壓電流特性與故障電弧的典型特性相似，給檢測工作帶來了難度。
  12. Iour company have designing and processing of ability and we can manufacture the various kinds melted - zinc - bath of specifications and shapes, and we also can produce the machine equipment, for example, there are a lot of stamping dies and stretching dies ect.,

    一根據用戶要求可製作各種規格形狀的鍍鋅鍋槽，備有全套沖壓和拉伸模具等加工設備，有先進的焊接水平，採用電弧氣刨來保證焊縫質量。
  13. The electrochemical impedance spectroscopy of nickel electrodeposition indicates that nickel electrodeposition occurs in two steps, the medium frequency inductive loop is ascribed to the relaxation of the electrode coverage by an adsorbed intermediate such as niohads, the low frequency capacitive loop may be due to the inhibition of nickel electrodeposition by adsorbed hydrogen. the mechanism and equivalent circuit of nickel electrodeposition were proposed on the basis of the analysis of electrochemical impedance spectroscopy

    不銹鋼電極上電積鎳的電化學阻抗行為表明氨絡合物體系鎳電沉積過程是二次放電過程，中頻感抗弧是由於中間吸附產物nioh _ （ ads ）的弛豫現象引起，低頻容抗弧可能是由於吸附氫原子對鎳結晶的阻滯作用引起，依據實驗結果提出了氨絡合物體系鎳電沉積的反應機理和等效電路模型。
  14. Based on lots of tig experiments, it can be concluded that welding arc can be well controlled, the characteristic of movement behavior of welding arc are gotten, which lay reliable guarantee on application of mig / mag welding technology

    通過大量tig焊接試驗證明該套裝置能夠實現對焊接電弧的控制，並且得出了外加旋轉磁場作用下電弧運動行為的變化規律，為該裝置進一步應用於mig / mag工藝提供了可靠的保障。
  15. 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。
  16. Failure mechanism of silver - based contact material under electric arc

    銀基觸頭材料電弧作用下的失效及其機理
  17. The switch is not only when switching over with production of electric arc, mechanical contact head easy to be damaged, but also it is slow to regulate, ca n ' t frequently operate, so limit the range of application of this kind of switch

    這種開關不僅切換時伴有電弧的產生，機械觸頭容易損壞，而且調節速度慢，不能頻繁操作，因此限制了這種開關的應用范圍。
  18. The single fiber sensor head was investigated experimentally and theoretically. two kinds of sensor head fabrication methods were demonstrated and compared, which are the electrical arc melting and mechanical grinding respectively. a mathematic model of fiber tip reflection was established by the method of ray - tracing

    論文提出並比較了兩種製作單光纖傳感頭的方法：電弧拉製法和光纖研磨法；利用光線追跡法建造了單光纖傳感頭的數學模型。
  19. The tap - changer is made with solid state relay as its working mechanism and controlled by microprocessor. this switch has totally cancelled the mechanical drive organization, by the microprocessor according to the voltage of second side microprocessor decide the working condition of solid state rely, high regulation speed, need not transition resistor, rush current is low. operating frequently ; there is no electric arc to produce, can put in the fuel tank of the voltage transformer directly ; the structure is simple, the fabrication cost is low, benefit and use widely among the voltages transformer of distribution

    其中的有載調壓分接開關，它是一種完全由固態繼電器作為分接開關執行機構，由單片機控制的有載自動調壓的變壓器分接開關。該開關完全取消了機械傳動機構，由單片機根據變壓器二次側電壓的高低，決定與變壓器各分接頭聯接的固態繼電器的工作狀態。調節速度快，改變分接頭時不需過渡電阻，沖擊電流小，可頻繁操作；無電弧產生，可以直接放在變壓器油箱中；結構簡單，造價低，便於在配電變壓器中推廣使用。
  20. Power sources for manual arc welding with limited duty. european standard en 50 060

    限定工作負載的手工電弧焊用電源
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