石墨球化 的英文怎麼說
中文拼音 [dànmòqiúhuà]
石墨球化
英文
spheroidization of graphite-
How is timing controlled to prevent nodular iron fade
如何控制球鐵孕育時間?防止石墨退化The metamorphous graphite in the section center of heavy section s. g. iron castings is superspheroidal graphite, and not the product of degeneration along the direction from shperoidal graphite to vermicular or flake graphite
大斷面鑄件中心的變態石墨是過球化石墨,而不是球狀石墨向蠕蟲狀石墨或片狀石墨方向衰退的產物。When the two reactants were simply mixed by crush, they reacted violently and produced carbon spheres with a diameter of 50 - l00nm and sodium chloride ( nacl ) was encapsulated within the outer amorphous carbon shells, which could be confirmed by sem and tem. by annealing at 1400 ? to drive the encapsulated nacl away, hollow carbon spheres were left with a novel mesoporous structure, as presented in hrtem
實驗中將兩種反應物通過直接擠壓混合后加熱反應,得到的無定型球狀碳材料經tem照片證實直徑為50 - 100納米,而且中間包裹氯化鈉( nacl )顆粒; xrd等結果顯示,高溫退火併徹底清除nacl后形成的中空碳球已經部分石墨化。A little ferrite and cementite, through the analysis of the strengther and ductiler, we draw the conclusion that this is very important in reality, observing the graphite nodule in sem and tem, there are many spheroiding element and anti - spheroiding elements in the core and edge of graphite nodule, they form the oxides sulphide and nitride. we draw the conclusion that they may be the core of graphite nodule
在掃描電鏡( sem )與透射電鏡( tem )上觀察石墨球,與傳統石墨球相比低碳球鐵的石墨球呈細小點狀分佈,球墨中心聚集有較多的球化元素而在邊緣處分佈有反球化元素。石墨球中心存在有氧化摘要一物、硫化物以及氮化物等組成的復雜的化合物,經分析認為它們是球狀石墨形核的有效核心。In order to make investigators know about the current research state of preparation of the carbon / graphite materials with high density and strength from mesocarbon microbeads, and direct the research, development and production, in this review, the influence of preparaed mesocarbon microbeads from various raw materials and methods of preparation, ball diameter of carbosphere, preoxidation temperature and time, moulding pressure and time, heat treatment temperature and heating rate, holding time on the mechanical properties and microscopic structure of carbon / graphite product were discussed by us
摘要為了對中間相炭微球制備高密高強炭石墨材料的研究現狀有所了解,並且對實驗和實際生產起到指導作用,本文通過參閱大量中外文獻,討論了不同原料及制備方法制得的中間相炭微球、炭微球的球徑、預氧化溫度及時間、成型壓力及時間、熱處理溫度及升溫速率、保溫時間對炭石墨製品的力學性能及微觀結構的影響。It was showed that the basic varying law of graphite morphologies is as follows : with increasing of growing rate of graphite crystal along direction of [ 0001 ], the morphologies of graphite change from flack shape vermicular shape spheroidal shape explosive shape superspheroidal shape
研究得出,鑄鐵中石墨變態的基本規律是:隨著石墨晶體沿[ 0001 ]方向生長速度的增加,石墨由片狀石墨蠕蟲狀石墨球狀石墨開花狀石墨過球化石墨。The low - enriched uranium fuel consists of half - millimetre - sized particles of uranium dioxide encased in graphite and silicon carbide, which in turn is encased in a graphite ball
低濃縮的鈾燃料為包裹在石墨和碳化硅中半毫米大小的二氧化鈾微粒,石墨和碳化硅則被包裹在石墨球中。In order to avoid eutectic carbide, improve nodularity, increase nodule count and increase mechanical properties, three times of inoculations were adopted in the centrifugally cast nodular iron pipes production : a ) inoculation in ladle ; 2 ) pouring stream inoculation ; 3 ) in - mold inoculation
摘要在離心鑄造球墨鑄鐵管生產中,為防止共晶滲碳體析出,改善球化,增加石墨球數,提高力學性能,採用了三次孕育: ( 1 )包內孕育; ( 2 )澆注時隨流孕育; ( 3 )型內孕育。Abstract : it was verified through experiment and measurement that there was growth phenomenon taking place with nodular iron castings after graphitizing annealing at low temperature. the emergence mechanism and reason of the “ annealing growth nature ” was dicussed, and its prevention measures was proposed
文摘:通過試驗和測試,證實了球鐵件經低溫石墨化退火后存在的生長現象,並對這種「退火生長性」產生的機理及原因進行探討,提出了防止措施。By observing the three common macro, micro characteristics as abnormal nodulizing, graphite floatation and slag in elusion, the defect reason has been analyzed in this paper, and the measure of preventing the defect is introduced to effectively control and reduce the waste parts, and to improve the qualified rate of the casts
摘要通過對球化不良、石墨漂浮和夾渣三種常見缺陷的宏、微觀特徵的觀察,分析了形成缺陷的原因,提出的防止缺陷產生的措施,能有效地控制和減少變廢品的產生,提高了鑄件合格率。As the eutectic time increases, the graphite morphology departs from sphericity to the abnormal morphology, and the roundness of the graphite particles decreases as well
隨著共晶時間的延長,鑄件的石墨形態逐漸偏離球形,向異常化趨勢發展,石墨顆粒的圓整度隨之降低。2000s today, a wide range of materials are used by manufacturers to make golf clubs lighter and enhance all aspects of the golfers game. these include stainless steel, graphite, titanium, carbon fibre and tungsten
世紀的今天,高爾夫球桿製造商使用包括不銹鋼石墨鈦碳化纖維鎢鋼等多種材質設法使球桿變得更輕,從而在各方面提高高爾夫運動。Effect of electric field of pulse on transformation of perlite in second stage graphitization of nodular cast iron
脈沖電場對球墨鑄鐵第二階段石墨化中珠光體轉變的影響Methods for analysis of noble metals in geochemical samples - determination of palladium content - preconcentration by thiourea - graphite furnace atomic absorption spectrophotometric method
地球化學樣品中貴金屬分析方法硫脲富集-石墨爐原子吸收分光光度法測定鈀量In ductile iron, this graphite flake is modified by a specialized treatment process to form tiny spheres or nodules
在球墨鑄鐵內,這種石墨薄片通過特殊的處理方法變化成微小的球體。分享友人