電弧功率 的英文怎麼說
中文拼音 [diànhúgōnglǜ]
電弧功率
英文
arc power-
The reason of these improvements are discussed as a base of lower down the power level without the debasement of performance and the alter of propellant by hydrogen or hydrazine
為今後進一步在確保性能的前提下降低發動機功率以及以氫氣、氮氣混合或者肼作為推進劑的電弧加熱發動機的探索和研製奠定了基礎。Capacity of the output contacts is 150 w 1250w, max. working current is 5 a, but arc extinction is not permitted. mechanical data and installation
裝置出口接點和信號接點最大允許接通功率為150w或1250va ，最大允許長期接通電流為5a ，且不允許斷弧。Suitable for large power welding such as single / double wire high speed and high efficient submerged welding, big wire gas shielded welding, large current gas gouging welding etc
可用於單絲/雙絲高速高效埋弧焊，粗絲氣保焊，大電流氣刨等多種大功率焊接方法Abstract : with the aids of computer ' s hardware, executive mechanism of weld arc length automatic controller of all - position pipe welder and additional software, an automatic system for arc striking has been developed, in which touch - starting method using tiny current is introduced. utilizing this method, the ablation ratio of tungsten electrode and tungsten inclusion ratio of welded seam is far smaller than normal touch - starting method. and the successful ratio of arc striking is high
文摘:用全位置自動焊管機弧長自動控制系統的計算機硬體和執行機構，僅增加部分程序，設計了採用小電流接觸引弧法的自動引弧系統，鎢極燒損和焊縫夾鎢遠小於普通的接觸引弧方式，引弧成功率很高。Moreover, the epiipc functions properly and stably under well due to the reasonable electrical circuit design and very strong anti - jamming design. this design successfully solves the directionally power current leakage fault action and reject action, and makes it working in both neutral point non - grounded and grounded through resistors or coils under compensate systems and over compensate systems
本次研製的保護器較好地解決了功率方向型漏電的誤動作和拒動作問題，使得它既能較好地運行在中性點不接地的系統中，又能用在中性點經消弧線圈接地的欠補償系統中，同時試用於過補償系統中。Arc leakage power
電弧漏過功率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。8 - 1. 2g / min, and collection efficiency achieve 8 - 10 % under these parameters. through the study on the dispersion process of the nanoparticle tio2 in water, the author finds out that whisk time, dispersant types, dispersant concentration, dispersing time, ph value, temperature and electrolyte concentration have significant influence on dispersing effects. through contrastive and orthogonal experiments, the author obtains that composite dispersants have better results than single dispersants
研究表明，液料等離子噴塗制備的納米tio :顆粒平均粒徑為10 ~ 50nln ，其晶型以銳欽礦為主，且隨著電弧功率的增大，銳欽礦含量減少;在本次實驗工藝參數下，收集速率為0 . 8一1 . 29 / min ，收集效率為8一10 % o通過對納米ti02顆粒在水介質中的分散性研究，發現機械攪拌時間、分散劑種類及濃度、分散時間、 ph值、溶液溫度和電解質濃度對納米tio :顆粒的分散穩定性有很大的影響。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。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。Abstract : the shaped technique of the electric arc tube s shell with neck, which is used in the small power metal - halide lamp, is introduced in this paper
摘要:超小功率高強度氣體放電燈電弧管電極極間距誤差要求小，二電極對中要求高，所以採用在電弧管泡殼兩端加縮頸來定位電極。It is necessary to do study on it as a request of the development of small satellites and future aerospace tasks
鑒於我國當前小衛星的蓬勃發展以及未來航天任務的需要，研製低功率電弧加熱發動機是很有必要的。Three kinds of different methods, namely anode oxidation, micro - arc oxidation and dc reactive magnetron sputtering, were employed to treat aluminum substrate which is used for power electronic devices in order to get an insulating surface by form a layer of aluminum nitride ( aln ) or aluminum oxide ( al2o3 ) film
本文分別採用陽極氧化法、微弧氧化法和磁控反應濺射沉積氮化鋁薄膜的方法對功率電子器件用金屬鋁基板表面進行絕緣化處理。Discontinuous cf / cu composite, with its peculiar properties of high electrical - conductivity, high thermal - conductivity, self - lubricating, resisting electric - arc erosion and so on, is a prospectively functional composite
非連續c _ f / cu復合材料的電導熱導率高，具有自潤滑和抗電弧侵蝕等特殊性能，是一類具有廣闊應用前景的功能復合材料。At present, arcjet has been the highlight of investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability
電弧加熱發動機以較高的推力/功率比、推力密度、中高的比沖、良好的系統繼承性和可靠性等特點，已經成為當前國際研究和應用的熱點。Arcjet is one of the highlight of electric propulsion investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability
作為電推進的一種方式，電弧加熱發動機以較高的推力/功率比、推力密度、中高的比沖、良好的系統繼承性和可靠性等特點，成為當前國際研究和應用的熱點。Owing to the delay in change of regulation of executing agency with respect to changes in realistic state, arc furnace is predicted the state in the next time, with nn predicting model, so that the current wins comparative stabilization and impact of trashy power is reduced
本文首先針對電爐的執行機構的調節總是滯後於電弧爐實際狀態的變化，加上電弧爐神經網路預估模型，通過它預估出電弧爐下一時刻的狀態，使電弧電流能達到一種相對的極穩狀態，減少無功功率沖擊。According to the present actual underground power system which neutral point is grounded through arc suppression coil in many supper big shaft, the development history and present situation of synthetic protection system used in hv flameproof switchgear are reviewed, and on the basis of analyzing the problems existed in high voltage flameproof switchgear, the selective leakage protective method based on the detecting harmonic direction of zero sequence current as well as the value of zero sequence voltage is proposed in this paper, and at the same time, harmonics extracting schematic and transforming circuit are also designed
本文深入系統地研究了基於intel80c196kb單片機控制的6kv防爆開關綜合保護系統，主要內容如下：針對大型及特大型礦井供電系統中性點普遍採用消弧線圈接地方式的現狀，回顧了國內外礦用高壓防爆開關保護系統的發展歷史，分析了目前國內高壓饋電開關保護系統所存在的問題，提出了「基於零序電壓基波啟動，五次諧波功率方向比較」的選擇性漏電保護原理，設計了相應的五次諧波提取電路和功率方向鑒別電路。Secondary atomized electric arc spraying technology system with high power
大功率二次霧化電弧噴塗技術系統的研製A low power arcjet with high performance has been designed and constructed in this dissertation
本文設計、建造一套性能先進的低功率電弧加熱發動機。分享友人