電弧特性 的英文怎麼說

中文拼音 [diànhútèxìng]
電弧特性 英文
arc characteristic
  • 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
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 特性 : characteristic（s）; character; performance; features; properties; behaviour; response; character...
  1. In this paper, it has been studied by the slope - controlled scr rectifier that external characteristic of welder relate to arc digging action and the strong arc force of arc welding power source in manual arc welding formed

    利用一種特製的變結構可控硅整流焊機，研究不同焊機外特性對電弧穿透力的影響；探討了手工電弧焊強電弧力形成機理；並且指出正確設計電源外特性，是獲得較強電弧穿透力的途徑。
  2. Dynamic characteristic of arc

    電弧動特性
  3. 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。
  4. In order to solve the default of the limited valid scope and discontinuity characteristic, introducing the state continuous conversion gene based on establishment of respective mathematics model for low and magnitude current scope, and integrate with them reasonably then having established the mathematics model of suitable whole scope and having solved present mathematics model existent problems

    本文針對目前電弧爐負載數學模型存在的適用范圍有限、特性不連續等缺點，在建立了分別適合大、小電流區域運行特性的數學模型的基礎上，引入狀態連續轉換因子，將分別適合大、小電流區域運行特性的數學模型有機結合為一個整體，建立了適合全范圍的數學模型，解決了目前數學模型存在的問題。
  5. The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability ， insulation coordination ， electromagnetic interference ， but assault safety 。 in china ， the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network ， low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai ， beijing ， and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas ， such as zhuhai ， substations grounding with low resistance revealed some problems ， including power supply reliability rapidly dropping ， transmitting line often tripping ； and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance

    爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析，比較各方式的特點，然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型，在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下，對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算，其計算結果與電科院所作現場試驗進行了比較。
  6. 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。
  7. 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。
  8. Using the traits of arc adjust itself of the co _ 2 welding, adopting slow - descending feature or even feature of electrical source equipping with system that delivering the welding rod at the invariable speed, then, the arc burning steadily is realized, and the quality of welding is improved

    利用co _ 2氣體保護焊電弧的自身調節特性，採用緩降或平硬特性的電源配等速送絲系統，通過改變電源空載電壓來調節電弧電壓，再利用電弧電壓和熔化速度之間的關系調節焊絲熔化速度使之等於送絲速度，最終實現電弧的穩定燃燒。
  9. 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。
  10. 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。
  11. 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。
  12. Patent control technology of dynamic characteristics and waveform, hard arc, stable welding current, little spatter, good welding surface, optimized matching parameters, welding speed increased by 100 - 200 %

    專利動特性及波控技術，電弧挺度大，焊接過程穩定，飛濺少，成型美觀，優化參數匹配，焊速可提高100 - 200 %
  13. 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。
  14. Characteristics of high - pressure welding arcs and the differences between welding arcs under high pressure and normal pressure are analyzed in this paper

    摘要對高壓下焊接電弧特性（電弧輻射、傳導、對流）的改變以及焊接電弧的形態變化進行了分析。
  15. Seed, rated current is 6 - 200a, see below sketch

    件，額定電流均為6 - 200a ，弧前時間-電流特性曲
  16. Chapter one of the thesis introduces the vacuum structure, operation principle and electric arc characteristic of the vacuum killing arc room concisely, and retrospected the development of the vacuum killing arc room briefly, and indicated the research purpose and meaning of thesis at the same time. chapter two introduces the design process and manufacturing technology of the vacuum killing arc room possessing cup form horizontal magnetism touch head structure. electric magnetic field finite element, an analytical soft of ansoft company, and msc non - linear finite element, an analytical soft of marc of company, have been adopted to analyze the distribution state of the horizontal magnetic field between the touch heads, electric field intensity distribute state and temperature rise situation which the touch head produced

    論文的第一章首先是對真空滅弧室的結構、工作原理和電弧特性進行了簡明的闡述，同時對真空滅弧室的發展做了一個簡要的回顧，並表明了本論文的研究目的和意義;第二章介紹了杯狀橫磁真空滅弧室的設計過程和製造工藝;採用ansoft公司電磁場有限元分析軟體和msc公司marc非線性有限元分析軟體分析了觸頭結構產生的橫向磁場在觸頭間的分佈狀況、電場強度分佈狀況以及溫升情況。
  17. The arc erosion of ag - lanio3 - electric contact materials in dc condition

    電接觸材料的直流電弧特性研究
  18. And based on the simulation of dynamic arc characteristics during the interrupting process, the interactive mechanism of the arc and high velocity gas flow has been deeply analyzed, the variation of the gas flow parameters under the condition of arc clogging and interaction of arc and shock wave have been studied

    在斷路器開斷過程動態電弧特性模擬的基礎上，深入解析了電弧與高速氣流的相互作用機理，研究了電弧堵塞情況下噴口氣流參數的變化，電弧與激波的沈陽工業大學博士學位論文摘要相互作用等。
  19. When the helium content is less than 45 %, the character of tri - mixed gas has no evident difference compared with that of argon

    混合氣體中氦氣的體積百分比小於45 %時，其電弧特性與氬弧差別不大。
  20. Adopting the short circuit electric current of to formate the test prove that this contact turn on and cut off performance. according to ablation situation of contact surface after testing, have analysed that coil type double - pole amf influences electric arc

    採用短路電流合成試驗驗證了這種觸頭的開斷性能，根據實驗后觸頭表面的燒蝕情況，分析了線圈式兩極縱向磁場在大電流時對電弧特性的影響。
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