vacuum reaction 中文意思是什麼
vacuum reaction
解釋
真空反應-
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。 -
3. the reaction of lanthanide powder with anthracene in the presence of ticl4 catalyst in tetrahydrofuran at 0 - 60 under normal pressure generated organolanthanide compounds, which are less thermal. it was found that the decomposition of the organolanthanide compounds in vacuum could give rise to lanthanide powder of nanometric size with high purity accordingly
3 .納米尺寸鑭系金屬粉末制備的研究溫和條件下，採用絡合催化法合成鑭系金屬有機化合物，利用它的熱不穩定性，在真空條件下進行熱分解來制備納米尺寸鑭系金屬粉末。 -
The main products includes various steam and electric heating reaction vessel, conduction oil, outer coil reaction vessel, polyester and resin completed equipments, vacuum reducing concentration tank, methanol and ethanol recovery tower, various corrugated stuffing, high effective membrane evaporator, new - type centrifugal drag membrane evaporator, vacuum rake dryer, condensing drum cut - off machine, shell - and - tube condenser,
本廠主要產品有各類蒸氣電加熱反應鍋，導熱油外盤管反應鍋，聚脂樹脂全套設備，真空減壓濃縮罐，甲醇乙醇回收塔，各類波紋填料，高效薄膜蒸發器，新型離心刮板式薄膜蒸發器，真空耙式乾燥機，冷凝滾筒切片機，列管式冷凝器，螺旋板式換熱器，外循環蒸發器，鋁制槽車貯罐，乳化設備，高速剪切分散機，種子罐，發酵罐，多功能提取罐，並承接各類非標設備。 -
First, according to the demand of vimp for resin system, the reaction kinetics and rheological of up resin are investigated and the optimal content of low additive profile ( lpa ) is determined. then vimp based on a high - permeable medium and grooves are studied by visual experiments, through which the appropriate high - permeable mediums are selected and the parameters of width, depth and spacing for flow grooves and spacing for supply grooves are optimized. furthermore, various factors affecting the mold filling process are discussed and the whole vacuum infusion procedures are described taking examples of the manufacture of a model boat and a sandwich panel in one infusion
文中首先根據vimp對樹脂體系的要求，對vimp用不飽和聚酯樹脂體系的動力學和流變學性能進行了研究，確定了最佳低收縮添加劑的含量；對高滲透介質型和溝槽型vimp開展了實驗研究，通過可視化實驗優選出較好的高滲透介質，確定了引流槽的寬度、深度和槽間距及主槽的槽間距等工藝參數並進行了優化；對影響充模過程的各種因素進行了詳細的討論，並以模型船和夾芯面板的製作為實例描述了兩種vimp的成型過程；在實驗的基礎上，建立了二維滲漏模型，採用控制體有限元法對高滲透介質型vimp進行了成型過程的計算機模擬計算，通過充模時間和流動前峰的計算值與實驗結果的比較，驗證本文所採用的數學模型和數值方法的正確性，其結果對實際生產具有一定的理論指導意義。 -
Critical condition of sedimentation and characterization of tin nanograin in vacuum arc reaction
顆粒在真空電弧反應中沉降的臨界條件及其表徵 -
Main products of the company include coal - water fluid boiler, coal - water fluid / oil / gas burner, steam boiler, hot water boiler, vacuum hot water boiler, heat carrier furnace, fluid handling equipment, reaction pot, fermentation tank, heat exchanger, grade br1 pressure vessel and boiler auxiliary equipment and accessories, etc
主要產品有:水煤漿專用鍋爐、水煤漿/油/氣燃燒器、蒸汽鍋爐、熱水鍋爐、真空熱水鍋爐、熱載體爐、流體裝卸設備、反應釜、發酵罐、熱交換器、 br級壓力容器，鍋爐輔機及配件等。 -
Two types of internal oxidation techniques were adopted, namely internal oxidation under nitrogen protect and new type vacuum internal oxidation in the present study. both techniques can achieve the oxygen partial pressure that the internal oxidation reaction of cu - al alloy can take place
本文採用的兩種內氧化工藝，即氮氣保護下的內氧化和新型真空內氧化工藝，都可以滿足cu - al合金發生內氧化的氣氛條件。 -
Reaction - bonded sic was prepared by using melt silicon infiltrated carbon perform at 1500 c ; then evaporated the resist silicon at 1800 c for 2h in vacuum and the porous body of sic was attained. using melting mosi2 infiltrated sic body at 2050 c we got the desitive mosi2 / sic composite
將c質坯體在1500左右制得rbsc （反應燒結sic ）材料，採用真空下1800脫除rbsc中的殘余si的方法，獲得了多孔的sic坯體，用mosi _ 2在2050直接浸滲坯體得到了緻密的mosi _ 2 sic復合材料。 -
During the course of new type vacuum internal oxidation reaction, homogeneous dispersed a - aljos particles were formed in copper matrix. the average size of a12o3 particles and their distance are 120nm and 400nm respectively
在新型真空內氧化過程中，銅基體內生成了均勻彌散分佈的g - al2o3粒子，其平均尺寸和顆粒間距分別為120nm和400nm 。 -
The speed became fast at the temperature 1050. the reaction could carry completely when billets was kept in vacuum tube for 3 hours " at 1050 temperature, under the striking of great quantity of heat when the molten iron poured into the mold, the reaction was blazed rapidly and continued at a high speed. the diffusible speed of v and c was very fast because the billet was heated over 1300 in a moment, so the reaction ca n complete in a few minutes
（ 5 ）碳化反應v + c vc在900左右開始發生，此時是固相反應，反應速度較慢，反應不能進行完全，隨溫度升高，該碳化反應的速度加快，在1050保溫3小時可以進行完全，在鑄造燒結時在過熱鐵水的巨大熱流密度沖擊下， v + c vc立即被激發，並以很快的速度進行，由於坯塊被加熱到1300以上，此時c和v擴散速度很快，因此鑄造澆注后的幾四川大學碩士學位論文分鐘內反應可以進行完全。
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