過燒結 的英文怎麼說
中文拼音 [guòshāojiē]
過燒結
英文
oversintering-
The investigation of the effect of temperature field, stress field and the adscititious physical field on the sls can lead to the systematical analysis and elimination of the disfigurements existed in the metal parts prepared by sls
通過研究激光燒結的溫度場、應力場以及研究外加物理場對激光燒結的影響,可以系統分析和解決激光燒結金屬零件存在的缺陷。Using in situ formation of ternary boride base cermets hard phases through chemical reactions and sinterbonding onto steel substrates though liquid sintering we successfully prepared a kind of ternary boride base cermet
摘要通過化學反應將原料粉來生成三元硼化物硬質相併通過液相燒結燒與鋼很好的結合,用這種工藝成功地在鋼基體上塗覆了預壓制的三元硼化物基金屬陶瓷。In recent years at iron - making plant of pangang, the coke ratio of pig iron has reduced evidently by insisting on “ burden preparation ” course, improving quality of sinter, raising wind temperature, increasing rich oxygen quantity and injecting abundant pulverized coal into bf. the solid fuel consumption of sinter has been decreased greatly through insisting on using high - quality calces, practising high feed sintering, actualizing many techniques in solving key problems. at the same time, the energy source base management has been strengthened, and energy - saving work has made great progress, profits generated by energy - saving have exceeded a hundred million yuan
近年煉鐵廠通過堅持「精料」方針,改善燒結礦質量,提高風溫,增大富氧,實施大噴煤,使入爐焦比有明顯下降;燒結堅持用好生石灰,推行厚料層燒結,實施多項技術攻關,固體燃耗大幅度下降;同時加強能源基礎管理,節能工作取得長足進步,節能創效益1億元以上。Ceramic elements are made by pressing and sintering finely powdered materials.
陶瓷元件是將仔細研磨的材料經過加壓和燒結製成。The simulation results suggest that, at the end of the scanning line, the dissymmetric temperature field and the great temperature gradient result in the balling phenomenon and great thermal stress, which could lead to the destruction of the sintering samples in this region. because of the coupling effect between scanning lines, the balling phenomenon is increased as the increase of the scanning lines, thus the over short scanning lines should be avoided in the sintering process. different scanning strategies have significant influence on the sintering
模擬結果表明,掃描端點溫度場的不對稱及較大的溫度梯度造成了端點球化現象,並在端點處產生較大的熱應力,使燒結成形試樣易在此處破壞;激光掃描線間的耦合作用使端點球化現象隨掃描線的增加而逐漸顯著,燒結時應避免過短的掃描線;不同掃描策略對燒結成形有很大影響,交替掃描會影響燒結試樣的質量,實際製造時應採用單向掃描策略。In chapter two, we fabricated r - ni - fe / al2o3 nanocomposites successfully by using ball - milling mixing method plus hot - pressing process. meanwhile, their microstructures are characterized by x - ray diffraction ( xrd ) analyser, transmission electron microscopy ( tem ), field emission scanning electron microscopy ( fe - sem ) and brunauer - emmett - teller ( bet ). the results indicate that ni - fe particles are homogenously dispersed in the matrix in the composites
在第二章中,我們採用高能球磨混合方法加上熱壓燒結工藝,成功制備了ni - 20fe al _ 2o _ 3納米復合材料,並通過x射線衍射儀( xrd ) 、透射電鏡( tem ) 、場發射掃描電鏡( fe - sem ) 、比表面孔隙儀( bet )對該復合材料的微結構進行了表徵。Laboratory glassware. sintered fritted glass filters
實驗室用玻璃器皿.燒結玻璃過濾器Specification for laboratory sintered or fritted filters including porosity grading
實驗室燒結或熔結過濾器Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )
本研究以武裝直升飛機防護裝甲材料為研究對象,採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料,結合其力學性能、掃描電鏡和界面微區能譜分析結果,分析了sic _ p al復合材料的真空燒結過程中的界面現象,以及材料增強和斷裂機理,並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態(應變率為3 . 3 10 ~ ( - 3 ) s ~ ( - 1 ) 5 . 2 10 ~ 3s ~ ( - 1 ) )的壓縮破壞響應進行了研究,分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下,材料的變形和微觀損傷機理,以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。Sintered polymolecular microporous tubular filter
高分子燒結微孔管式過濾器The studies indicate that different content of pyrophyllite and dolomite can cause the following three cases : ( 1 ) making the refractory point decrease linearly and, to some extent, influencing the microstructure and properties of sintered body ; ( 2 ) acceleratingmullite formation during sintering, reducing thermal expansion coefficient of bond, reinforcing the matching nature and improving the flexural strength and shock strength ; ( 3 ) preventing sic grinding tool from generating black core, expanding suitable sintering temperature range of sic grinding tool
同時,也不同程度地影響了磨具燒結體的微觀結構和性能; ( 2 )可促進在燒結過程中莫來石的形成,降低結合劑的熱膨脹系數,加強了結合劑與磨料的匹配性,提高了磨具的抗折強度和抗沖擊強度; ( 3 )在一定溫度范圍內還可防止碳化硅磨具出現黑心現象,拓寬了碳化硅磨具的燒結溫度適應范圍。The primary theory of absorption and desorption was also explained. the effects of primary process parameters, such as hydrogen pressure, time and temperature on the magnetic properties of ndfeb have been researched. the structure and magnetic properties have been analyzed by means of optical metallographic microscopy, scanning electronic microscopy, x - ray diffraction analysis, infrared oxygen detector and magnetic properties measurement
本文設計了燒結ndfeb的氫爆制粉設備,對設備調試以及使用過程中出現的主要問題進行了簡要的說明,提出了一系列解決方法;闡述了吸氫、脫氫的基本原理;研究了氫氣壓力、通氫時間、氫爆溫度等基本工藝參數對磁性能的影響;利用金相顯微鏡和掃描電子顯微鏡, x射線衍射分析,紅外線測氧分析及綜合磁性測量儀等手段分析了材料的組織結構和磁性能。For the ceramic materials, the effects of additives such as pbo, b2o3, co2o3, mno2, cr2o3, sb2o3 on the electrical properties of bismuth - free zno - glass varistor were studied. the glass phase formed mainly by pbo and b2o3 during sintering process could decrease the sintering temperature, improve grain uniform growth and inhibit grain second growth. nonlinear property could be improved by properly adding co2o3, mno2, and cr2o3
對瓷料而言,系統研究了非bi系zno -玻璃料配方體系中pbo 、 b2o3 、 co2o3 、 mno2 、 cr2o3 、 sb2o3等添加劑對壓敏電阻電性能的影響規律,其中, pbo 、 b2o3在燒結過程中形成的玻璃相,可降低燒結溫度,促進晶粒均勻生長,抑制晶粒二次長大, co2o3 、 mno2 、 cr2o3做為非線性添加劑,適量添加可提高樣品的非線性, sb2o3做為改性添加劑,在燒結過程形成的尖晶石相可細化晶粒,抑制晶粒二次生長,改善樣品的綜合電性能。As showed by the results, mpf is advantageous for the stable formation or growth of pre - sintered glass beads, and it can partly guarantee the desired " results of sintering
研究結果表明,利用復配造孔劑有利於顆粒的穩定生成和成長,在一定程度上保證燒結過程達到理想狀態。Furthermore, referring to the literature and considering the specific experimental conditions given by the research, expression of the change of feed rate with time is presented, to obtain the linear growth of the diameter of pre - sintered glass beads, thus the distribution of beads size is relatively well controlled and raw material is spared in some extent. eventually, during the experiment discrete change of feed rate is implemented, and the practical changes of average diameter are plotted, then the results are compared with the theoretical calculated data
另外,本文通過對造粒技術、燒結過程的大員文獻調研,結合本研究的具體情況,通過控制進料速率呈連續性變化,基本實現了燒結前球坯直徑的線性生長變化,從而更有利於實際生產中的產品粒度控制以及做到節約用料,並在試驗操作中以離散型進料速率變化來加以比較驗證。Study on the sintering process of ti - al tic composites
陶瓷基復合材料燒結過程的研究Influence of w on sinter strength and sintering process of vanadium - titanium magnetite
鈦燒結礦強度和燒結過程的影響The influence of process parameter to laser sintering process is discussed
討論了各工藝參數對激光燒結過程的影響。In this paper, with the pb - zn sintering process of imperial smelting process ( isp ) in shaoguan smeltery works as study object, the design and implementation of y xl distributed control system ( dcs ) of sintering process is fulfilled as well as the development of optimal control system
本文以韶關冶煉廠isp鉛鋅燒結過程為對象,設計和實現了燒結過程xl集散控制系統,設計和開發了燒結過程優化控制系統。By the xrd phase analysis of the pre - sintered and sintered composites and the sem image of fracture microstructures of the composites, the sintering process and the sintering mechanism of the composites are investigated in detail
通過燒結前後復合材料的粉末x射線物相分析及復合材料斷面微結構的觀察,詳細研究了復合材料的燒結過程和燒結機理。分享友人