電弧力 的英文怎麼說
中文拼音 [diànhúlì]
電弧力
英文
arc force-
In the 1870s, many inventors were working on creating lighting devices, but until edison became involved, what existed was electric arc lighting
在1870年代，許多發明家都致力於製作照明設備，主要是設計發亮的電弧。Offering options of soft / hard arc and arc force for all - position welding
備有軟/硬電弧及推力電流選擇，實現全位置焊接的要求The investigation shows that plenum chamber total pressure has multifarious effects on arcjet thruster operation, and both specific impulse and thrust efficiency can be improved by increasing it befittingly under steady arc
研究表明，集氣腔總壓對推力器工作過程具有多方面的影響，在保證電弧穩定的情況下，適當提高集氣腔總壓可同時提高比沖和推進效率。We are specialized in producing sets of large - hex high - strength bolts, sets of torshear type high - strength bolts, sets of dacrolon bolts and cheese head studs for arc stud welding
我公司技術力量雄厚，生產設備精良，檢測設備完善，是生產鋼結構用高強度大六角螺栓連接副、扭剪型螺栓連接副、達克羅螺栓連接副和電弧螺柱焊用圓柱頭焊釘的專業公司。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。Rapid prototyping technology changed the traditional pattern of product design, which could offer product sample for the designer, reduced design cycle and quicken the schedule of new product design, and it gave the decision - makers visual feeling. ; rp technology provided kinds of molds including resin - boncled mold laminate mold, investment mold and lost foam casting mold and so on for sand casting investment casting and cavityless casting, it could also use direct shell production casting to make pattern dies metal dies die - casting dies injection dies directly, and it could even produce casting products in small scales. the applications of fdm technology in plaster precision casting and the rapid casting technology based on sls technology were introduced, the organic combination between rapid prototyping tecnnology and foundry process, which initiated a new period of rapid manufacturing metal parts, by using advanced new technology alternated traditional foundry industry to make it looked brand - new, thus, the competition of foundry industry would be improved ; rapid prototyping technology offered a rapid economical feasible technical method, common processes of using rapid prototyping technology to produce dies were discussed, in the paper it explored that. the problem of combining rapid prototyping technology with electric arc metal - spraying technology to make metal dies and technics in dies manufacturing of combining rapid prototyping technology with precision casting, rapid tooling based on rapid prototyping, integrated advanced new technology and tradition technology of rapid prototyping manufacture, each superiority were exerted, rapid prototyping technology had been an efficiency measure to rapid update products and develop new product, and to middle -
快速成型技術改變了傳統的產品開發模式，可以為設計者提供產品樣件，縮短設計周期，加快新產品的開發進度，為決策者提供直觀性；快速成型技術迅速提供砂型鑄造、熔模鑄造、實型鑄造用的各種模樣，包括樹脂模、層壓模、熔模和消失模等，還可採用直接制殼鑄造法直接製造熔模鑄造用的壓型、金屬型、壓鑄型、注塑模，甚至直接製造小批量鑄件，介紹了熔積成型技術在石膏型精密鑄造上的應用和基於選擇性激光燒結技術的快速鑄造技術，快速成型技術與鑄造工藝的有機結合，開創了快速製造金屬零件的新階段，對用高新技術改造傳統的鑄造工業，使其面貌煥然一新，增強鑄造行業的競爭能力；快速成型技術為母模的製造提供了一條快速、經濟、可行的技術途徑，討論了利用快速成型技術製造模具的一般工藝方法，探討了將快速成型技術與金屬電弧噴鍍技術結合起來快速製造金屬模具問題，以及快速成型技術與精密鑄造技術相結合的模具製造工藝，基於快速成型製造的快速模具技術，集成了快速成型製造高新技術和傳統技術，發揮各自優勢，已成為產品快速更新換代和新產品開發及中、小批量生產的有效手段之一。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。Steel casting : 20 tons arc - furnace steelmaking, 40tlf refiner furnace ; the max elevating capacity 125t ; the max casting products 80t, dimension of casting products length, width, high 8. 54. 53m, spun casting min outer diameter, min wall thickness, max length 1000154000mm ; various specification steel strands
鑄鋼: 20t電弧煉鋼爐40tlf精煉爐最大起重能力125t最大鑄鋼件80t鑄鋼件最大尺寸長寬高8 . 54 . 53m離心澆注最大外徑最小壁厚最大長度1000154000mm各種規格連鑄坯。The process of flashing involves ionization on the dirty surface concerning the factors of electric, heat and chemicals, thermal dynamic equilibrium process of local electric arc occurrence and development
污閃是一種與電、熱和化學因素有關的污穢表面氣體電離及局部電弧發生、發展的熱動力學平衡過程。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。“ ieee recommended practices and requirements for harmonic control in electrical power systems ”, ieee std 519 - 1992
日本電氣學會技術報告（ ）部第72號，制鋼用電弧爐電力供給問題最新動向，電氣加熱技術協會，第3 ~ 19頁，昭和53年。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。Self adjust function of electric arc, easy arc igniton, less spatters, perfect weld appearance
電弧自調節能力強，引弧成功率高，焊接飛濺小，熔敷率高，焊縫成形美觀。Much works has been distributed to the development of a vacuum system to simulate the outer space and a measurement system to test the arcjet performance. ignition experiments in various operational modes have been done with argon as propellant. macroscopical working parameters including thrust, mass flow rate, voltage, current, inlet pressure and vacuity are obtained by the test measurement system and actual performance parameters including specific impulse, thrust efficiency, ratio of thrust and power and ratio of power and mass flow are calculated
以氬氣作為推進劑，在不同工況下進行點火實驗，測量獲得了其工作推力、電弧電壓和電流、推進劑流率和弧室壓力等宏觀參數，得到了不同實驗條件下其工作的實際比沖、推力效率、推力/功率比以及比功率等性能參數，分析了推進劑質量流率、電弧功率、電弧加熱發動機電弧室結構尺寸等因素對其性能的影響，為數值模擬研究和實際的低功率電弧加熱發動機優化設計及研製提供了實驗基礎。It is a very high advancement to the development from two - pressure arc - quenching chamber and single - pressure arc - quenching chamber to the self - energy arc - quenching chamber now for arc - quenching theory of sf6 cb make use of the arc blocking effect, namely arc - self - energy, to increase sf6 gas pressure in the arc - quenching chamber and get the efficient blasting effect to extinguish the arc when the arc current is zero
Sf _ 6斷路器從雙壓式、單壓式發展到如今的自能式是斷路器滅弧原理的一個重大飛躍。自能式sf _ 6斷路器利用電弧阻塞效應即利用電弧本身的能量使滅弧室內sf _ 6氣體的壓力升高，在電弧過零時產生有效的氣吹而熄滅電弧。Carbon nanotubes were produced in an electric arc discharge with an anode composed of carbon. the productions were studied in different current, voltage, helium pressure and diameter of anode and cathode sticks. oxygen and steam in helium were discussed. the proper condition of producing carbon nanotubes is included to make purification easy. 2figs., 2tabs., 6refs
採用石墨電弧法制備碳納米管，研究了不同電流、電壓、氦氣壓力以及不同陰陽極棒徑條件下碳納米管的生成情況，並討論了氧氣和水蒸氣的存在對碳納米管制備的影響，總結出制備碳納米管的條件，給以後的純化工作帶來方便.圖2 ，表2 ，參6Vibration - 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。Parts which can ignite an explosive atmosphere are placed in an enclosure which, if there is an ignition of an explosive mixture internally, will withstand the pressure and prevent the explosion being transmitted to the atmosphere around the enclosure
將設備在正常運行時，能產生火花電弧的部件置於隔爆外殼體，隔爆外殼能承受內部的爆炸壓力而不致損失，並能防止傳播到外殼外。Obtaining the way of power source of the strong arc force was clearly shown
最終實現了在可控硅整流焊機上模擬出類似直流旋轉焊機的電弧穿透力。The results prove that the scheme increases the stability of electrode apparently, current fluctuating has been reduced, speed of system echo has been improved. the system has fine self - adaptive ability and fine ability to resist interference
現場調試結果表明採用的控制方法大大提高了電極控制的穩定性，電弧電流波動降低，系統的快速性大大提高，系統具有較強的自適應能力和魯棒性。分享友人