弧熔化 的英文怎麼說

中文拼音 [húrónghuà]
弧熔化 英文
arc melting
  • 弧 : 名詞1. [數學] （圓周的任意一段） arc2. （古代指弓） bow
  • 熔 : 動詞（熔化） melt; fuse; smelt
  • 熔化 : melt; smelt; meltdown; fusion; fusation; diatexis; eliquation; run; melting; smelting
  1. And apatite. by these analyses and comparison with general granite both in china and the world and with the granite in other au or cu belt in china, the characteristics of the granite in this area are concluded as follows. it belongs to magnetite - i or syntectic granite and has crust - mantle mixed characteristics ; it was formed mainly by crystallization differentiation of melting magma and multiphase varied intrusion ; the degree of differentiation evolvement is not high ; the granite and its enclaves p. re congenetic ; the range of temperature is about 500 - 700, the range of pressure is about 2. 50 gpa - 4. 35 gpa, and the range of oxygen fugacity ( lg fo2 ) is - 15. 53 - - 14. 00 ; most granite bodies formed before the collision of plates, and few formed after the collision of plates

    通過對測試數據的分析與綜合研究，並同中國和世界一般花崗巖類以及中國主要金、銅成礦巖體的花崗巖類進行對比，得出本區花崗巖類巖石具有以下特徵：屬磁鐵礦-型或同熔型花崗巖，其巖漿物質具殼幔混源特徵：主要由熔融態巖漿經結晶分異作用，通過多期變速上侵而形成；其分異演化程度較低；寄主巖基和包體具有同源性；巖石的形成溫度范圍約為500 - 700 ，壓力大約為2 . 50gpa - 4 . 35gpa ，氧逸度值1gfo _ 2為- 15 . 53 ? 14 . 00 ；該巖帶主要形成於板塊碰撞前消減的活動板塊邊緣期，為燕山至喜馬拉雅早期的大陸邊緣火山弧環境的產物。
  2. Metal argon arc welding of red copper and low carbon steel

    紫銅與低碳鋼的熔化極氬弧焊
  3. On account of the solidification character of rare earth alloys, the zone melting is improved by putting the alloys prepared by arc - melting into the quartz tube, then melting

    鑒于稀土化合物凝固結晶的特點，對區熔法進行了改進，將電弧爐熔煉好的樣品裝入石英管中，封石英管后在區熔設備上進行區熔。
  4. Gmaw short - arc tack welds shall not be incorporated into the root pass

    熔化極氣體保護焊-短弧點焊焊縫不能與根部焊道合成一體。
  5. 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。
  6. The gmaw short - arc process shall not be used for welding socket welds or the root pass of o - lets and branch connections

    熔化極氣體保護焊-短弧工藝不適用於承插焊接或出口和分支連接的根部焊道。
  7. 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。
  8. The dcep mig has the characteristic of deeper penetration which can reduce defective fusion and good arc stabilization. the dcen mig has the characteristic of shallow penetration of welding seam, and the welding wire has a high melting speed. so the variable polarity pulsed mig is a new technology for the welding of aluminium alloy sheet

    變極性脈沖mig焊是一種新的焊接工藝方法，其綜合了dcep脈沖mig焊熔深較大、可以減少焊縫的熔合不良、電弧穩定性好和dcenmig焊焊縫熔深淺、焊絲熔化速度較快的特點，減小了焊縫的熔深，增加了焊絲的熔化速度，是一種適合於薄板鋁合金焊接的新方法。
  9. The geochemical signatures show that the volcanic rocks in the jingzhushan formation were formed in the island - arc environment as crustal thickening - melting products in a compressional tectonic setting

    地球化學特徵表明，竟柱山組火山巖形成於島弧構造環境，是擠壓背景下地殼增厚熔融的產物。
  10. It is presented that the hydrous fluxing as well as adiaba tic decompression plays an important role in melting of morb - like mantle beneath marina trough. compared with basalts from other back arc basins, it concludes that the magma varies from morb - like to arc - like with the evolution ; during the earlier stage of evolution, there coexist the two morb - like and arc - like lavas, it may be the nature of the magma in back arc basins ( especially in the earlier stage )

    綜合馬里亞納海槽和其他弧后盆地玄武巖的研究成果發現，弧后盆地特別是早期擴張的弧后盆地，其巖漿產物均具從似島弧型到似洋中脊型玄武巖的時空演化特徵；同時存在島弧型和morb型兩種熔巖，可能是弧后盆地（特別是早期擴張弧后盆地）巖漿作用的一個共同屬性。
  11. Heater adopts high quality stainless steel, alloy heating wire, electrical melting mgo powder etc. to make the heating elements after passing advanced technology such as coiling wire, shrinking tube, removing humidity and sealing etc. the connection between flange and heating tube adopts hydrogen arc welding and vacuum lead welding to guarantee the heater without leakage under high voltage

    加熱器採用優質不銹鋼管合金加熱絲電熔氧化鎂粉等材料，經繞絲縮管排潮封口等先進的生產工藝製造而成的發熱元件法蘭與電熱管的聯接採用氬弧焊及真空釬焊，保證了加熱器在高壓下的不滲漏。
  12. The results indicate that arc melting is a good method to produce nb - si system intermetallics due to its simpler technics, lower cost and compact products. however, powder metallurgy is found to be not suitable to produce the nb - si system intermetallics due to its coarse and loose products resulting from the poor molding property of nb and si mixed powders. optical floating zone technology, which is used to fabricate nb - si intermetallic composites for the first time, is also found to be a good way to produce nb - si system intermetallics because of its compact products and good property despite of its relatively high cost

    結果表明，電弧熔煉方法制備得到的nb - si系金屬間化合物比較緻密，且制備工藝簡單，經濟實用，是一種合適的nb - si系金屬間化合物制備方法；由於nb 、 si元素粉末的成型性很差，用粉末冶金方法（熱壓燒結和冷等靜壓）制備的nb - si系金屬間化合物表面粗糙、緻密度低，且成本較高，不宜用於制備nb - si系金屬間化合物；首次用光學懸浮單晶生長技術制備的nb - si系金屬間化合物復合材料緻密度很高，盡管成本稍高，但由於性能最佳，也是一種合適的nb - si系金屬間化合物制備方法。
  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. Specification for approval testing of welders when welding procedure approval is not required - tig or mig welding of aluminium and its alloys

    不要求批準焊接工藝時焊工的鑒定考試規范.第2部分:鋁及鋁合金鎢極惰性氣體保護電弧焊或熔化極惰性氣體保護電弧焊
  15. Arc melting metal powder

    電弧熔化用的金屬粉末
  16. Study on abrasiveness of argon arc remelted quenching area of alloy cast iron camshaft

    合金鑄鐵凸輪軸氬弧重熔淬火硬化層的磨損試驗研究
  17. Vacuum arc melting

    真空電弧熔化
  18. The foundation to develop nb - si system intermetallics base high temperature structure materials has also been established in some degree in this paper. arc melting, powder metallurgy and optical floating zone technology have been used and compared to fabricate the nb - si system intermetallics

    運用電弧熔煉、粉末冶金熱壓燒結、粉末冶金冷等靜壓和光學懸浮單晶生長技術等方法制備了nb - si系金屬間化合物，並對這四種方法制備的nb - si系金屬間化合物進行了比較。
  19. In this thesis, a set of control system is developed for igbt inverter power supply of consumable - electrode co2 shielded arc - welding machine

    本文為熔化極co2保護的igbt逆變半自動弧焊機電源研製了一套控制系統。
  20. The results reveal that the microstructure of the nb - si system intermetallics consists of nb and nbasi phases. because of unstable microstructure of nfysi phase at high temperature, the equilibrium nb + nbssia dual - phase microstructure of the nb - si system intermetallics should be acquired by means of heat - treatment

    研究表明，採用電弧熔煉和單晶生長技術制備的nb - si系金屬間化合物的顯微組織主要由nb + nb _ 3si組成，而由於nb _ 3si相在高溫下是不穩定的，為了得到穩定的nb + nb _ 5si _ 3雙相組織，必須對材料進行熱處理。
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