粉末球化 的英文怎麼說

中文拼音 [fěnmòqiúhuà]
粉末球化 英文
spheroidizing of powder
  • 粉 : Ⅰ名詞1 （粉末） powder 2 （用澱粉製成的粉條或粉絲） noodles or vermicelli made from bean potato o...
  • 末 : Ⅰ名詞1 （東西的梢;盡頭） tip; terminal; end 2 （非根本、非重要的事物） nonessentials; minor detai...
  • 球 : 名詞1 （以半圓的直徑為軸 使半圓旋轉一周而成的立體; 由中心到表面各點距離都相等的立體） sphere; glo...
  • 粉末 : powder; flour; stive; smalls
  1. The results showed that increasing scan rate and decreasing laser power can minish balling effect to a certain extent

    研究表明，適當提高掃描速度或減小激光功率可以在一定程度上減小316不銹鋼粉末激光燒結的球化效應。
  2. 1. 5 m in diameter ) were dispersed in n46 engine oil with different concentrations using ultrasonic respectively in order to study their tribological properties. the tribological experiments were carried out by mq - 800 four - ball tribometer and mm - 200 ring - on - block tribometer, in which extreme pressure properties, wear scan diameter, friction coefficient and wear volume loss were measured. the results showed that oil containing mos2 nanoparticles had a better wear resistance, friction - reducing and extreme pressure than the oil containing common mos2

    將上述制備得到的納米二硫化鉬顆粒和普通二硫化鉬粉末（ 1 . 5 m ）以不同濃度分散在n46機械油中，在mq - 800四球摩擦磨損試驗機上考察它們的最大無卡咬負荷（ p _ b值） 、耐磨性能和摩擦系數；並在mm - 200摩擦磨損試驗機上，通過環?塊摩擦副，比較和分析了它們的摩擦學特性。
  3. It was found that the mo - cu compound powder after high energy ball milling was in a inequilibrium energy storage state

    本文通過對mo - cu復合粉末的機械合金化研究表明，經過高能球磨后的mo - cu復合粉末，處于非平衡儲能狀態。
  4. On the base of milling ball interaction during milling process, the powder height of each collision can be calculated. if the impact of milling ball takes as hertz elastic collision, the maximum real strain and the maximum tangential strain are obtained as follows, e, . , ln [ h, / ( h0 ? vrcos6 / 2 ) ] = vrsin6 / h0 ? / q, t2rt2 / 2om ~ h, j where s, p, v are maximum real strain, the maximum tangential strain, friction coefficient and the velocity of milling ball

    對球磨過程中磨球相互作用作了一些假設后，可以計算出每次碰撞所獲得粉末體高度值；將磨球的碰撞作為hertz彈性碰撞，碰撞時的速度分解為法向速度和切向速度得出粉末的最大真應變和最大切應變為湖南大學材料物理與化學專業碩士論文r 。
  5. An arithmetic solution of comminution rule for pure metal powder in mm is put forward and then used to calculate the processes of pure metal powder such as ni and fe in mm

    提出了描述純金屬粉末球磨時粉碎規律的演算法，並對ni 、 fe等純金屬粉末球磨時的細化過程進行了計算。
  6. Another research finds that the ball mechanic milling on high - cr alloy powders has obvious effects on strengthening and toughening of the material. it is an effective approach for the materials " strengthening and toughening

    還發現，機械球磨合金粉末對高鉻覆層材料的強化和韌化有明顯作用，是實現材料強韌性的有效途經。
  7. The adding of process - control agent can effectively keep the powder from sticking to the milling ball and the inner wall of containers. the increase of rotating velocity and the ratio of ball to powder can accelerate the phase transformation and thus shorten the alloying time

    加入過程式控制制劑，可以有效地防止粉末粘覆磨球和罐內壁；球磨轉速的提高和球粉比的增加，都會加速相轉變過程，從而縮短合金化時間。
  8. The films prepared from ballmilling modified powder are dense in both surface and cross section while filmsprepared by unmodified powder are porous

    使用球磨優化后的粉末制備的電解質膜緻密，而使用未球磨粉末所得膜內微孔較多。
  9. Long term ball - milling deteriorated the magnetic properties. the reason is the oxidation of the powder

    過分的延長球磨時間將導致粉末氧化嚴重，惡化磁體的磁性能。
  10. At the first stage of ball milling, the granularity of powders increases with prolonging the time. but if ball milling continues, the granularity will minish. when minishing to a certain extent, the granularity of powders don " t change greatly along with prolonging the time of ball milling

    在初始階段隨球磨時間的增加，粉末粒度變大，繼續球磨，粉末粒度變小，細化到一定程度后粉末粒度不再隨球磨時間的延長顯著變化。
  11. ( 3 ) the most principal factors that influence the supersonic atomization process include the flow ratio of the gas - liquid metal ( gmr ) value, the flow of atomizing of gas and the range of the inverse vortex taper. the more of the value of three factors, the more advantage they are for the atomization and the more fine the powders are. ( 4 ) the produced powders are the best in efficient atomization efficiency, particle diameter, particle shape and dispersion when the solder alloy is zhl63a, atomizing medium is n2, the protrusion h = 6. 0mm, atomizing gas pressure p = 100mpa, over - heat temperature t = 167 ( t = 350 )

    研究結果表明： （ 1 ）超音速霧化器的氣體流場在導液管下端形成一個倒渦流錐，在二維空間上呈軸對稱的雙峰分佈，負壓形成於這個倒渦流錐內； （ 2 ）修正後的霧化氣體速度公式可以滿足超音速霧化的要求； （ 3 ）影響超音速霧化工藝最根本的因素有氣液質量流率比（ gmr ）的大小、霧化氣體流量和倒渦流錐范圍，三個因素的值越大，對形成細粉越有利； （ 4 ）在焊錫合金為zhl63a ，霧化介質微n _ 2 ，導液管突出高度取h = 6 . 0mm ，霧化氣體壓力取p = 1 . 0mpa ，合金過熱度取t = 167 （ t = 350 ）時，所制得的粉末在有效霧化率、顆粒球形度、粒度及其離散度三個方面綜合性能最好。
  12. In this work, using elemental powders as starting reactant materials several carbide powders such as wc, sic, tic, zrc and corresponding alloys had been fabricated by ball - milling technique. x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ) and other measurement techniques had been used to monitor the structural changes of powders after some ball milling time and the properties of the cemented tungsten carbides. and the mechanism for the formation of matal carbides by ma has also been discussed

    本文主要對機械合金化（ ma ）技術在碳化物制備中的應用進行了研究，利用高能球磨，以元素粉末為原料，制備出wc 、 sic 、 tic 、 zrc的粉體以及wc基硬質復合材料，並利用x射線衍射、掃描電鏡、透射電鏡等方法分析和研究了球磨過程粉體的變化以及燒結后硬質合金的性能，對機械合金化制備碳化物的有關機理進行了研究和探索。
  13. Experimental results show that the grains were gradually triturated to namometer size with milling time and the grain size might be 30nm or so, but the grain size was not decreasing after the powder has been milled for 25 hours. the nano - sized sic was synthesized by ball milling of si and c mixed powders which rare earths as a additive was added to

    結果表明：隨著時間的延長，粉末逐漸細化至納米級，可以細化到30nm左右，但球磨時間超過25h后粉末顆粒繼續細化的速度明顯放慢，並且在球磨的過程因為晶粒細化和晶粒內部發生了嚴重的晶格畸變，納米粉體x射線衍射峰產生嚴重寬化。
  14. In this thesis adding the pre - process carbon nanotubes into the powder of silicon nitride, with ball milling, drying and sieving, fabricate the silicon nitride ceramics applying the hp sintering method, which in order to improve the toughness of the silicon nitride

    本文就是利用碳納米管優良的力學性能，在對其預處理后，將其添加到氮化硅陶瓷粉末中，經球磨、乾燥、過篩后，採用熱壓燒結工藝，制備氮化硅陶瓷，以期改善氮化硅陶瓷的韌性。
  15. The tribological characteristics of ultrafine ws2 powders added in engine oil have been investigated by four - ball machine test, and compared with chloroparaffins ( t302 ) and molybdenum disulphide ( mos2 ), and meanwhile we have analyzed the tribochemical species of the worn surface by means of x - ray photoelectron spectroscope ( xps ), to research the lubricating mechanism of ws2

    摘要採用四球摩擦實驗機對二硫化鎢超細粉末在發動機油中的摩擦學性能進行了研究，並與添加劑氯化石蠟和二硫化鉬進行了比較，同時用x射線光電子能譜儀對磨痕表面元素進行分析，以探討二硫化鎢的潤滑機理。
  16. The samples were characterized contrastively by sem, tem, saed, positron annihilate and the different mechanism for two methods were preliminarily discussed. the experimental results showed that nano - cuo prepared by sol - gel method was spherical, which was agglomerated badly and can aging easily. however, nano - cuo prepared by pressure - hydrothermal method has loose and thin - piece appearance structure

    結果表明，溶膠-凝膠法制得的氧化銅粉末呈類球形，團聚嚴重，易老化；而壓力-熱液法制得的氧化銅具有疏鬆的、薄片狀的外觀結構，粒子厚度約為20nm ，分散性較好、抗老化能力強；壓力-熱液法制備的氧化銅比溶膠-凝膠法制備的氧化銅缺陷濃度小。
  17. Namometer silicon carbide powder was prepared from industrial silicon carbide by high energy ball milling. then the morphology and the phase structure of the milled powder were inspected by y - 4a xrd and philips xl30 peg sem., the variational rules of milled sic powder size were determined

    用philipsxl30feg型掃描電鏡、 y - 4a型x射線衍射儀對球磨后的粉末進行了形貌觀察和相結構分析，統計了sic粉體尺寸隨球磨時間的變化規律。
  18. Tic, zrc and cu - 50 % tic were fabricated by reactive ball milling using ti, zr, c and cu powders for raw materials. compound powders were prepared by ball - milling with raw powders that have been fabricated. dispersion strengthen cu - based materials was synthesized at last though a set of technical course that consist of different pressing technique, sintering technique and heat extrusion technique

    本課題以單質ti 、 zr 、 c和cu粉末為原料，用反應球磨技術制備了tic 、 zrc和cu - 50 tic原料粉末，將制備的原料粉末和cu粉用球磨混合，制備出cu - tic 、 cu - zrc和cu - （ tic + zrc ）復合粉末，然後設計不同的壓制工藝和燒結工藝進行壓制、燒結和熱擠壓，最終獲得高強度的彌散強化銅基復合材料。
  19. Based on the experimental results and the correlative chemistry theory, the phases formed in the process and its influenceable factors were studied. the significant results were enumerated as follows : as for the mn - h2o system, 5g pure mn scraps ( 99. 5 %, - 200mesh ) and distilled water served as the starting materials were milled by high energy ball miller together with 200g steel balls as the milling medium. the experiments were conducted with the rotation speed of 380rpm. - mn3o4 nanopowders were fabricated after milling some time and would experienced phase transformations if continue to be milled. the reaction would be accelerated if a little of hcl or mnso4 was added while be decelerated if. a little of naoh was added. the - mn3o4 phase with particl size between 20 ~ 100 nanometer was obtained after milling 1. 5h when trace hcl was added. the oxygen added to the ball tin has little effect on the reaction

    主要實驗結果如下: （ 1 ）對于mn - h2o系，通過高能行星式球磨機，在50ml蒸餾水中球磨5gmn粉末，球料比為40 : 1 ，轉速為380rpm ，球磨一定時間后獲得了納米級單相- mn3o4 。隨著球磨時間的延長，生成的- mn3o4會繼續被氧化或發生晶型轉變。加入微量hcl或mnso4會明顯加快mn的反應，加入hcl后，球磨1 . 5h后即獲得粒徑為20 100nm的單相- mn3o4粉末;加入微量的naoh會抑制mn反應生成- mn3o4 。
  20. The balling effect of 316 stainless steel powder was studied, and the effects of process parameters, such as laser power, scan rate, and layer thickness, on the success of laser sintering were discussed

    分析了316不銹鋼粉末球化效應產生的原因，討論了工藝參數（激光功率、掃描速度和粉層厚度）對316不銹鋼金屬粉末燒結成形的影響。
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