燃弧 的英文怎麼說

中文拼音 [ránhú]
燃弧 英文
arcing
  • 燃 : 動詞1. （燃燒） burn 2. （引火點著） ignite; light
  • 弧 : 名詞1. [數學] （圓周的任意一段） arc2. （古代指弓） bow
  1. Transitional feature of the arc and metal droplet in the welding process with steam shielded arc is investigated by means of analysing the waveforms of welding voltage and current under different welding regimes and it is found that there are two types of arc process behavor ? " arc starting - arc blowing out - short - circuiting " and " arc - starting - short - circuiting ". under the condition of constant diameter of welding wire and its feeding speed, the arc process behavor can be changed by adjusting the inductance of welding circuit as well as the voltage of power supply. if arc process behaves as alternative process of " arc starting - arc blowing out - short - circuiting " with minimum time duration of arc blowing out and maximum frequency of short - circuit transition, the welding process will be stable with less spatter and smooth weld bead

    通過分析不同焊接規范下的焊接電壓和電流的波形.研究了水蒸氣保護下電弧及熔滴過渡的特點，發現其電弧過程行為有「燃弧?熄弧?短路」和「燃弧?短路」兩種形式.在焊絲直徑和送絲速度一定的情況下，通過調節焊接迴路中的電感量和電源電壓，可以改變電弧的過程行為形式.若電弧過程呈「燃弧?熄弧?短路」交替進行，並且熄弧時間最短時，短路過渡頻率最高，在這種情況下，飛濺小，焊道成型好，焊接過程穩定
  2. It has certain fight impact, endure electric arc and good endure leakage of electricity, it is mainly apply to make insulation structural of low voltage of electrical equipment as well as daily use utensil accessory etc. product appearance submits granular

    通過阻燃性能認證。具有一定的抗沖擊性耐電弧性和良好的耐漏電性，適用於製造低壓電器絕緣結構件以及日用器皿配件等。產品形狀呈粒狀。
  3. 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。
  4. Effects of different fuel - air ratios and different geometric parameters of dual - stage swirler ( such as inner diameters of the primary swirl and secondary swirl passages, outer diameters of the secondary swirl passages, vane angle of the primary and secondary swirler, the distance of the flare exit from throat etc ) on combustion performances are studied experimentally. the experimental results show that radial profiles of the outlet gas temperature 、 combustion efficiency 、 emissions of co2 、 co and nox and lean blowout are affected with different degrees by the different geometric parameters of dual - stage swirler and the arrangement of primary holes

    在不同油氣比下，不同的雙級旋流器幾何參數（例如:一級與二級旋流器出口內徑d 、葉片安裝角、二級旋流器出口外徑d 、二級旋流器的喉道到出口截面的距離l和喉道前後的圓弧半徑r以及主燃孔孔布局等）對單頭部環形燃燒室的出口溫度分佈、燃燒效率、貧油熄火油氣比以及污染物（ co _ 2 、 co和nox ）排放等燃燒性能的影響規律進行了研究。
  5. The crust of carrying parts adopts flame - resistant engineering plastic which has excellent electric property and high safety coefficient. all contacts adopt noble metal, so it has no arc and has long life. and the carrying parts adopt high - conductance excellent copper and high - flexibility material

    本產品面板採用高級防彈膠，載流零件殼體採用阻燃工程塑料，電性能優越，安全率數高，觸頭全部採用貴金屬觸點，不起弧，壽命長，載流零件選用高導率的優良銅材和高彈性材料，產品性能得以充分保證
  6. Some new phenomenons were discovered. the width of trigger current changes with the discharge condition, it is only 100u. s when let the trigger source work alone, but it can rise up to 300us with the arc current and magnetic field

    在研究過程中發現引弧電流脈沖寬度受放電狀態的影響很大，在不引燃主弧時脈寬只有75 s ，而在引燃主弧並在加磁場的情況下會增大到300 s 。
  7. Abstract : the image of arc zone of flux - cored underwater wet welding was developed with underwater ccd camera system and composed filter technology. the discussion is mainly focused on the theory of edge detection. an image edge detection method based on median filter and grads algorithm was developed to detect the arc burning zone and arc bubble zone efficiently, which laid the foundation for further analysis of underwater wet welding arc mechanism and process control

    文摘:通過復合濾光技術和水下ccd攝像系統，採集出了藥芯焊絲水下濕法焊接電弧區域圖像，重點論述了邊緣檢測理論，確定了基於中值濾波和梯度運算元的電弧區域圖像邊緣檢測方法，有效地區分了電弧燃燒區域和電弧氣泡區域，從而為水下濕法焊接電弧的機理分析及水下焊接過程式控制制奠定了基礎。
  8. Due to two work states - - - arc burning and short current - - - existed in welding process of consumable electrode welding, and different control objectives in these two states, two close - loop feedbacks are designed in the control system : welding voltage feedback and welding current change rate feedback

    根據熔化極co2焊機具有燃弧和短路兩種工作狀態，且兩種狀態下控制目標不同的特點，在控制系統中設計了雙閉環反饋：焊接電壓反饋及焊接電流變化率di / dt反饋。
  9. The integral method is adopted caculate and analyze to amf three - dimension distruction which is the structure of coil type four - pole and the structure of coil type double - pole and study the size of two kind of electrode structure axial magnetic flux density distribution and its fielduniformity. the finite - element method is used simulate that eddy current has effect on amf when contact tray of douple - pole amf structure is slotted or no

    本文採用積分方法對本文設計的線圈式兩極縱向磁場觸頭結構和線圈式四級縱向磁場觸頭結構的縱向磁場三維分佈進行了計算分析。研究了電弧燃燒期間兩種觸頭結構縱向磁場強度的大小、均勻性，利用有限元法模擬線圈式兩極縱向磁場觸頭結構的觸頭盤開槽和不開槽時渦流對縱向磁場的影響。
  10. Not only does it study the plasma characteristics of the arcing and after - arcing between contacts, but also its diffusion to outside of the contacts and its effect on the arc shield. for the first time, it proves the non - stability of the plasma diffusion of after - arcing by experiments

    同時，分析了燃弧和弧后觸頭間隙等離子體的特性，探討了它向觸頭間隙外的擴散及對屏蔽罩的作用效果，用實驗證明真空滅弧室弧后殘余等離子體消散的不穩定性。
  11. The co2 welding process needs the special external characteristic and dynamic characteristic of power source for there are alternately arcing time and short circuiting time at the period of short - circuiting co2 welding

    在採用短路過渡方式的co2焊過程中，短路和燃弧過程交替發生，因此它對電源的外特性和動特性有特殊的要求。
  12. One - way exhaust. load fuse box has high - speed drawing equipment to save the time and shortage

    件下端裝有熔斷件高速拉出裝置，以減少燃弧時間
  13. 1. the splitting from the binding interface of cuw / crcu roots from the rich cr and the oxidation of the binding interface, which leads to the higher thermal resistance in binding interface than normal, and the thermal stress enhanced. the extruded cu is suggested to instead of casting cu

    （ 1 ）斷裂是由於原材料鑄態的crcu中c :質點大於熔滲的孔隙而沉積在界面上，同時在有氧源存在的條件下，結合面氧化，致使結合面結合不好，界面熱阻升高， cuw與crcu部分的膨脹不同，應力集中，燃弧后斷裂。
  14. Neither damages nor arc blast signs could be found in + ea cubicle. all components of this cubicle are in good conditions

    在+ ea櫃中既沒有發現任何損傷，也沒有發現任何燃弧痕跡。該櫃內部的所有元件狀況良好。
  15. To improve its reliability, it is effective to investigate the dynamic change of the whole process from arcing to arc suppress

    揭示電弧從燃弧到滅弧的動態變化過程，是提高低壓電器產品可靠性的有效途徑之一。
  16. The relay ' s electric parameters guarantee it to work reliably. the time parameter is an important one of the electric parameters, which affects the relay ' s operation frequency and its arc and electric life

    電氣參數是為保證繼電器在規定的條件下使用時可靠的工作，時間參數是電氣性能參數的一個重要參數，它的大小影響著繼電器的操作頻率，而且它直接影響繼電器的燃弧及觸點壽命。
  17. Based on the comprehensive study on contact erosion and massive tests, it is found that the erosion of cb contacts is dominantly depend on the arcing time and breaking current. this paper analyses the mechanism of electrical arc of vacuum circuit breaker and discusses the primary factores. then this paper put forwardes a way to prognosticates the life exepctancy of electrical endurance of vacuum circuit breaker base on the power of arc

    本文分析了真空斷路器的燃弧機理，探討了影響真空斷路器電壽命的主要因素，指出了原先以開斷電流作為預測真空斷路器電壽命的方法的不足，提出了改進的以燃弧能量為主要指標的預測方法。
  18. The paper establishes a mathematic model that describes the relationship between the arc voltage, the recovery voltage and the arc shield voltage. lt makes a detailed theoretic analysis of the plasma changing laws between contacts and the arc shield gap arc in the arcing process and after - arcing recovery process. the model has achieved the same results as the experiment results

    建立了描述真空滅弧室的電弧電壓、恢復電壓與屏蔽罩電壓之間關系的數學模型，從理論上詳細分系了燃弧過程和弧后恢復過程中，真空滅弧室觸頭間隙和觸頭與屏蔽罩間隙電弧等離子體的變化規律，取得了與試驗結果一致的結論。
  19. This paper designs a device of testing the arc shield voltage in the vacuum interrupter, and makes a study of the arcing and after - arcing recovery characteristics of the arc shield by measuring the arc current, the arc voltage, the recovery voltage and the arc shield voltage

    本文設計了真空滅弧室屏蔽罩電壓測量裝置，並對真空滅弧室在燃弧和弧后介質強度恢復過程兩個階段的電弧電流、電弧電壓、恢復電壓和屏蔽罩電壓進行了全面、系統的波形測試，研究了真空滅弧室蒸汽屏蔽罩在燃弧和弧后介質強度恢復過程的特性。
  20. Associated tightly with the stokes measured in small capacity current breaking and short - circuit breaking test duty t100a ( short arc, middle arc and long arc ), the electric field distributions 3 ms after current zero have been calculated. the cold gas flow field corresponding with small capacity current breaking is calculated. based on the results derived from one - dimensioned gas flow field simulation, the two - dimensioned gas flow fields corresponding with short - circuit breaking test duty t100a ( short arc and middle arc ) are calculated as well

    本文採用與試驗緊密結合的方法，在給定機械行程曲線的基礎上對三峽工程中採用的550kvsf6斷路器在開斷小電容電流、短路開斷方式5短、中、長燃弧電流過零后3ms內滅弧室二維靜電場分佈進行了分析計算；對該斷路器開斷小電容電流時近似的冷態場進行了二維模擬分析計算；在對短路開斷方式5短、中、長燃弧一維氣流場進行分析計算的基礎上進一步採用一維氣流場和二維氣流場相結合的方法，對該斷路器開斷方式5短燃弧和中燃弧對應的二維熱態場進行了分析計算。
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