鎢粒 的英文怎麼說
中文拼音 [wūlì]
鎢粒
英文
tungsten particle-
The research results show that, from the viewpoint of second phase morphologies, there exist quite differences between the grain - type materials ( such as wc / bcu brazing deposit material, wrs1000 and 1zt tungsten carbide strengthening overlaying material, as well as the wear - resistant material of polymer adhesive coating etc. ), and the aggregation - type as well as dispersion - type ones ( such as zg35simn, wrd - 1 and khc - k2 depositing material ) in the wear - resistance and sand slurry abrasion mechanism. the sand slurry abrasion mechanisms are brought forward, of new wear - resistant materials with the features of grain - type second phase morphologies
研究發現，與聚合型、彌散型第二相的材料（如zg35simn 、 wrd ? 1和khc ? k2熔敷材料等）相比，顆粒型第二相的材料（如wc bcu釬焊熔敷耐磨材料、 wrs1000型耐磨材料、 1zt碳化鎢顆粒增強熔敷材料及ktc ? 1耐磨膠粘塗層材料等）在耐磨性能和磨損機理等方面均有不同，總結提出了以「顆粒型第二相」為特徵的耐磨新材料泥沙磨損機理。The particles distributed hi the matrix of grey cast iron, but some contact each other. the composite layer extend gradually into the substrate. when volume fraction of wc is 36 wt % and 27 wt %, the matrix of the composite is high chromium cast iron, consist of white carbide bars and the austenite. wc particles distributed uniformly, retaining approximately quondam granular form in the composite layer which has an evident interface area with the substrate, with good bonding strength
對不同碳化鎢體積分數的灰鐵和低鉻鑄鐵基復合材料的微觀組織結構分析表明：碳化鎢體積分數為52時，復合層內基體為灰口鑄鐵組織，顆粒直接分佈在灰鐵基體上，部分碳化鎢顆粒有相互接觸的現象，基材與復合層之間沒有明顯的過渡；碳化鎢體積分數為36 、 27時，復合層內基體為高鉻鑄鐵，由面塊狀的奧氏體和白條狀碳化物組成，碳化鎢顆粒表面固溶於基體組織中，粒形基本保持完整，分佈均勻，與基體構成冶金結合，基材與復合層之間存在一個明顯的平緩過渡區。The strength and wear resistance of diamond drill bits for petroleum exploitation will be increased considerably when cast tungsten carbide is applied and adheres to the substrate firmly with cast tungsten carbide of 80 - 200mesh as the skelton and copper alloy as the soldering material in a process of non - pressure immersion
石油鉆探行業用的金剛石鉆頭，用粒度為80 ? 200目的鑄造碳化鎢粉作骨架，採用無壓浸漬工藝，以銅合金作釬焊料，將鑄造碳化鎢與基體牢固結合，強度、耐磨性大大提高。Raised, conical seat prevents solids build - up from interfering with seal. seat is hardfaced with stellite to meet severe service. alternative space age alloys are also used
凸起的、錐形閥座避免實心顆粒淤積影響密封。閥座採用鎢鉻鈷合金進行硬面處理，能夠經受惡劣環境的考驗。也可採用航空工業用合金製作的閥座。The age hardening characteristic of as - cast cu20ni20mn and cu20ni35mn alloys and the interface characteristic between the alloy and cast tungsten carbide were studied, and on the basis of this study, composites of cu - ni - mn alloy reinforced with different volume fraction ( 0 - 45vol. % ) and different size ( 42 - 362 m ) of cast tungsten carbide particles were made by vacuum hot - pressing liquid sintering technology. pin on disk two body abrasion tests have been performed with different size of sic abrasive under different loads
本文研究了鑄態cu20ni20mn和cu20ni35mn合金的時效硬化特性及其與鑄造碳化鎢的界面特性，並在此基礎上以不同尺寸（ 42 362 m ）的鑄造碳化鎢顆粒為增強體，採用真空熱壓液相燒結技術制備了不同顆粒含量（ 0 45vol . ）的鑄造碳化鎢顆粒增強cu - ni - mn合金基復合材料；以不同粒度的sic為磨料，在不同載荷條件下利用銷?盤磨損試驗機測試了復合材料的二體磨料磨損性能。So re oxides has two form existence, one is concentrate on the matrix equiaxial crystal grain boundary as a micron particles and the other is distributed in matrix crystal dispersively as the nanometer particles compared the electron emission performance of mo - la2o3, mo - ; la2o3 - y2o3 and mo - la2c > 3 - sc2o3 cathode, the mo - la2o3 - sc2c > 3 cathode show excellent electron emission character
上述研究表明不論是在稀土?鉬陰極還是在稀土?鎢電極中，稀土氧化物的存在形式有兩種，一種是微米級的顆粒偏聚于晶界處，另外一種是彌散分佈於基體晶粒的納米小顆粒。The results show that the composites were more wear resistant than the matrix, contributing to the " volume effect " and " size effect ", the wear resistance increases with the particle content and size. the composite shows better wear resistance than high chromium cast iron material especially in low load and fine abrasive test condition. the results also indicate that the composite strengthened by ageing treatment was more wear resistant than as - cast composite
磨損試驗結果表明，鑄造碳化鎢顆粒增強cu - ni - mn合金基復合材料具有比較高的抗磨料磨損能力，而且其耐磨性隨著鑄造碳化鎢顆粒體積分數及尺寸的增大而提高，表現出了強烈的「體積效應」及「尺寸效應」 ，尤其是在低載荷、細磨料磨損條件下，復合材料表現出更好的而寸磨性，即使與高鉻鑄鐵（ cr28 ）相比也有很大程度的提高。Evaluating apparent grain size and distribution of cemented tungsten carbides
鎢硬質合金錶觀晶粒尺寸及其分佈的評定Results of the experiments showed that the wear mechanisms of the sintered steel included abrasive wear, adhesive wear and fatigue wear, and it was the abrasive wear most important. it was the sintered steel mixed by ni, mo that was the best on the wear resistance, because of the great lot of bainite ; the sintered steel quenched and low temperature tempered mixed by mo, w that was the best on the wear resistance, because of the rigidity of the steel was the highest
實驗結果表明：本文中幾種燒結鋼的磨損機制均是由磨粒磨損、粘著磨損、和疲勞磨損共同作用的，且以磨粒磨損為主；在燒結態下，復合添加合金元素鎳、鉬的燒結鋼的耐磨性能最好，這是因為生成了大量的硬質相貝氏體；而淬火、低溫回火態下，則復合添加鉬、鎢的燒結鋼的耐磨性能最好，這是因為熱處理態下添加鉬、鎢的燒結鋼的硬度最高。Erosive resistance of grey cast iron matrix composite has been investigated, on the condition of different volume fraction of wc and erosive angles and volume fraction of. the results showed that, the erosive resistance of composite with volume fraction of 27 wt % was the best ; volume abrasion rate of composites with different erosive angles was maximum at 50 angle, but volume abrasion rate was less at 0 and 70 angle ; on condition of the same volume fraction of wc and larger size of quartz sand in slurry, volume abrasion rate increased
結果表明：碳化鎢體積分數為27的灰鐵基復合材料的耐沖蝕磨損性能最佳；不同沖蝕角下復合材料的體積碳化鎢顆粒增強鐵基表面復合材料及其沖蝕磨損性能研究摘要磨損量在50 「沖蝕角處最大，在0 」和70 」沖蝕角處較小；在碳化鎢顆粒體積分數相同的情況下，當漿料中的石英砂粒度大時，其體積磨損量增大。An ultra fine cemented carbide with tungsten powder and binder cobalt
一種由碳化鎢和粘結金屬鈷組成的超細顆粒硬質合金。Especially, the nano - iron and nano - tungsten sols as well as their powders were characterized in detail by xrd, ft - ir, uv - vis, xfs, tem, sem, edax and so on. another new method is put forward firstly to estimate the addition of dispersants and its effect by uv - vis
重點選取納米鐵乙醇溶膠和納米鎢乙醇溶膠以及其中的納米顆粒進行了詳細表徵，所涉及的測試方法包括x射線衍射、傅立葉紅外光譜、紫外-可見光譜、熒光光譜、透射電子顯微鏡及選區衍射、掃描電子顯微鏡及微區能譜分析等等。The recent research status on tungsten heavy alloys was reviewed. the methods to improve the properties of tungsten alloys, including the changes of tungsten particle size, component, content of matrix and the improvements of sintering technics, were also discussed in details. at the same time, some advanced overseas penetrators were introduced and research directions of tungsten alloy materials were pointed out in this paper
主要介紹高密度鎢合金穿甲彈材料侵徹性能的國內外研究發展狀況，從改變合金中鎢顆粒性質、粘結相組成與含量，以及結合工藝改善的角度，總結目前國內外改善高密度鎢合金侵徹性能的主要途徑，並對當前國外先進鎢合金穿甲彈產品的材料成分、制備工藝及侵徹效果進行了簡要介紹和分析;同時針對國外穿甲彈的研究概況和發展趨勢，提出我國今後研究和開發新型高侵徹性能鎢合金穿甲彈的主要研究方向。This thesis fabricated successfully a wc particle reinforced iron matrix composite using a vacuum infiltration process for severely erosion and application in the slurry pump. the casting process was optimized. the microstructure and wear resistance were researched and analyzed
本文針對承受嚴重沖蝕磨損的渣漿泵過流件，採用負壓鑄滲工藝成功制備了碳化鎢顆粒增強鐵基表面復合材料，改善和優化了復合工藝、鑄造工藝。Welding consumables - rods, wires and deposits for tungsten inert gas welding of non alloy and fine grain steels - classification
焊接用料.非合金和細晶粒鋼和鎢極惰性氣體保護用的焊條，焊絲和沉積物.分類Method for measuring the average grain size of sintered bar and rod of tungsten molybdenum and alloys
鎢鉬及其合金的燒結坯條棒材晶粒度測試方法The reinforcing effect has been researched, with wc of 40 ~ 60 mesh dimension and 10 ~ 52 wt % volume fraction. the matrices were grey cast iron and low chromium cast iron
復合材料中碳化鎢顆粒粒度為40 60目，體積分數范圍為10 52 ，基體材質分別選用了灰口鑄鐵和低鉻鑄鐵，研究了它們的復合效果。Preparation of carbon - coated iron nanoparticles by dc tungsten arc - discharge
直流鎢電弧法制備碳包覆鐵納米微粒的研究The result showed that, by adopting appropriate casting method, a good metallurgical combination between tungsten particles and hi - cr alloyed cast iron could be obtained
結果表明，在適宜的鑄造工藝條件下，碳化鎢顆粒和高鉻鑄鐵基體之間可以形成良好的冶金結合，鑄滲效果較好。Welding consumables. rods, wires and deposits for tungsten inert gas welding of non - alloy and fine grain steels. classification
焊條.非合金鋼和細晶粒鋼制惰性氣體保護鎢焊接用棒材線材和鍍層分享友人