金屬的固化 的英文怎麼說
中文拼音 [jīnzhǔdegùhuà]
金屬的固化
英文
solidification of metal-
It can also restrain the decomposition of organic substances in the soil and the bind of nitrogen, and wash away the nutritious elements, such as magnesium, calcium, and potassium. the acid rain deprives the soil. it acidifies the rivers and lakes, and dissolves the heavy metal in the soil into water, therefore poisons the fish
它可以直接使大片森林死亡,農作物枯萎;也會抑制土壤中有機物的分解和氮的固定,淋洗與土壤粒子結合的鈣、鎂、鉀等營養元素,使土壤貧瘠化;還可使湖泊、河流酸化,並溶解土壤和水體底泥中的重金屬進入水中,毒害魚類;加速建築物和文物古跡的腐蝕和風化過程;可能危及人體健康。The order of four soil biochemical intensity being sensitive to heavy metal pollution indicated as : nitrification > nitrogen fixation > decomposition of cellulose > ammonification. however, soil microbial biomass c : n ratio increased with the increasing of heavy metals level
幾種生化作用強度的下降順序為硝化作用固氮作用纖維素分解強度氨化作用;但土壤微生物生物量碳氮比則隨著重金屬污染水平的升高而增加。The methods for synthesizing p - hydroxyl ethyl benzoate catalyzed by sulfuric acid, p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, aluminum chloride hexahydrate, stannic chloride pentahydrate, copper sulfate, titanium sulfate, rare earth metal oxide, sodium bisulfate monohydrate, solid super acid and heteropoly acid and so on are reviewed
摘要評述了硫酸、對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水合三氯化鐵、六水合三氯化鋁、五水四氯化錫、硫酸銅、硫酸鈦、稀土金屬氧化物、一水硫酸氫鈉、固體超強酸、雜多酸等催化劑催化合成對羥基苯甲酸乙酯的方法。The synthesis methods of isobutyl acetate catalyzed by p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, cupric chloride bi - hydrate, stannic chloride pentahydrate, ammonium ferric sulfate dodecahydrate, sodium bisulfate monohydrate, potassium bisulfate, chitosan sulfate, sodium dihydrogen phosphate, rare earth metallic oxide, solid super acid, heteropoly acid and molecular sieve etal were reviewed
摘要評述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、二水氯化銅、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、殼聚糖硫酸鹽、磷酸二氫鈉、稀土金屬氧化物、固體超強酸、雜多酸和分子篩等催化劑催化合成乙酸異丁酯的方法。Abstract : the current status of research work on intermetallic compound dispersoid in rapidly solidified elevated temperature aluminum alloys is reviewed. the dispersoid existing in common elevated temperature aluminum allo ys, effect of rapid solidification processing on the formation of dispersoid and their thermal stability are discribed
文摘:綜述了快速凝固耐熱鋁合金中金屬間化合物彌散相的研究現狀,介紹了常見耐熱鋁合金中存在的彌散相、快速凝固工藝對彌散相形成的影響和彌散相的熱穩定性及其影響因素。Ysz - ni ( nickel - yttria stabilized zirconia ) cermets have been widely used in the solid oxide fuel cells ( sofc ) and functionally gradient materials ( fgm ) areas
Ysz - ni (鎳-氧化釔穩定的氧化鋯)金屬陶瓷可以應用於固體氧化物燃料電池( sofc )和功能梯度材料( fgm )中。The adulterated edible oil could be determined by detecting the regular physicochemical indexes, metal ion content, conductivity, sdbs content, afb1, volatile material, fatty acid composition, cholesterol, ir and uv characteristic absorption
通過對油脂的常規理化指標、金屬離子含量、電導率、十二烷基苯磺酸鈉( sdbs ) 、黃麴黴毒素、揮發性物質、脂肪酸組成、膽固醇、紅外及紫外特徵吸收等指標進行定性定量分析,可以鑒別食用油是否摻偽。In the thesis, we developed new alloy and cermet coating materials by adjusting the content of cr in ni and add some amount of si and cr _ ( 3 ) c _ ( 2 ). the test of high temperature oxidation and corrosion, erosion, bonding strength, hardness, thermal cycling and thermal shock of coatings tests were carried out in this study
我們通過調整nicr合金中cr的含量,以及在nicr合金中加入適量固溶強化元素si形成新型nicr基合金塗層材料,以及加入cr _ 3c _ 2陶瓷形成nicr基金屬復合陶瓷塗層材料。All main ways of metal strengthening including grain refining strengthening, dislocation strengthening, grain boundary and substructure strengthening, second phase strengthening, solid solution strengthening, as well as trip strengthening and so on, have totally found expression in the adi
金屬強化的幾種主要方式:細晶強化,位錯強化,晶界與亞結構強化,第二相強化,固溶強化,細晶強化以及trip強化等都在等溫淬火球鐵中得到了體現。Travis engen, alcan president and ceo platt ' s metals week primary aluminum production would continue moving away from the us because of power availability. western manufactures should look toward opportunities in areas of new technology development that reduce co2 emissions and new processes that move move from molten to solid in a smaller number of steps
Travis engen , alcan總裁及首席執行官platts金屬周刊由於電力需求原故,初級鋁金屬生產將會陸續離開美國西部生產商應該望向發展新科技的地區,這些科技可以減少二氧化碳排放,而嶄新從熔化體轉為固體的處理過程,可涉及更少工序。The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明:所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求;聚四氟乙烯樹脂熱分解溫度超過400 ,但在ptfe中加入無機填料會使復合材料吸水率提高,熔融溫度及分解溫度降低,且伴有氧化分解反應;碳纖維表面含有c = o及c - o - c等極性基團,有利於提高其與其它組分的相容性,提高層間剪切強度;均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系,擬合曲線基本能表示各配方的摩擦系數發展趨勢;配方中不加銅粉或不加石墨,其摩擦系數均較高,說明銅粉和石墨應該配合使用;當銅粉15份、石墨60份時,銅粉30份、石墨30 - 40份時,銅粉60 、石墨15 - 30份時,摩擦系數均具有較低值;純聚四氟乙烯樹脂在空氣冷卻時結晶度最大,磨損量也是三者中最大的;同時,固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的:不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副,在金屬表面均可形成潤滑轉移膜,從而減少金屬摩擦副表面間的直接接觸,大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。Study on immobilization of heavy metals by geopolymer with blast furnace slag
摻加礦渣的土壤聚合物對重金屬的固化The experiments showed that wc and vc can dissolve mutually in the carbonizing reaction. when wc ' s content exceeds vc ' s, vc will dissolve into wc and make wc ' s crystal lattice bring aberrance and become wc1 - x, contrarily when vc ' s content exceeds wc ' s, wc will dissolve into vc and also make vc ' s crystal lattice bring aberrance. the surface cermet composite has high rigidity and well wear - resistance
( 7 )採用鑄造燒結技術,通過加入毗顆粒和v班一vc的原位放熱反應成功制取了碳化物陶瓷質量百分數超過60 %的表面金屬陶瓷材料,實驗證實wc與高溫碳化反應生成的vc相互可以很好的固溶,當wc的含量超過vc時, vc可以固溶到wc中,使wc的晶格發生畸變,成為昵卜: ,反之當vc的含量超過wc的含量時, wc可以固溶到vc中,也會造成vc的晶格畸變。For a given ph condition, adsorption of trace metals on to sediments in the changjiang estuary can be described by the langmuir equation, and implies that increase in trace metal concentrations at natural waters has limited effect on trace metal partitioning coefficients because of high turbidity. 5
在某一給定ph條件下,長江口懸浮泥沙對5種金屬的吸附符合朗格謬爾關系,這表明,在高渾濁度天然水體中微量金屬濃度的變化對它們在固-液兩相之間的分配系數影響不大。But there are some technical difficults for the welding of aluminium alloy such as some broken bits being easily found, a large welding distortion can happen easily, hard to distinguish the difference between the solid metal and liquid metal colour, hard to control the temperature, a lot of air holes can be seen in the welding line and so on
但是鋁合金熔化焊時的技術難點在於:焊接時易引起夾渣,焊接變形大,金屬的固態和液態的色澤不容易區別,焊接操作時控制溫度困難,容易產生氣孔等等。如果焊前清理工作不是很好,檢測氣孔往往超標。Catalyst for ethanol synthesis. the results show that the reactive metals rh and mn are fixed on the catalyst surface by the interaction with si - oh, which can enhance the stability of highly dispersed metals. rh and mn interact with each other to form the acitve site with high ethanol synthesis activity. the surface si - oh was found to be of significance on the preparation of catalyst with high catalytic activity
的性質,結果表明,活性金屬銠及錳經浸漬法擔載于載體上后即與表面羥基作用使金屬固定在氧化硅的表面上,保證了高度分散活性金屬的穩定性高度分散中的銠錳相互結合,構成了乙醇合成中的高活性位研究發現表面硅羥基在催化劑制備過程中起著重要作用。The main mechanisms of earthworms ' resistance to metal pollutants are also elaborated : ( 1 ) its lipid antioxidative enzyme system helps relieve the stress of oxidation ; ( 2 ) compartment and immobilization of metals ; ( 3 ) process of chelating and detoxicification ; ( 4 ) lysosome and cellular plasmid are activated to restrain activity of heavy metals
並闡述了蚯蚓對重金屬的主要耐性機制: ( 1 )脂質過氧化保護酶系統緩解氧化脅迫; ( 2 )分隔、固定作用; ( 3 )螯合解毒作用; ( 4 )溶酶體和細胞質粒抑制重金屬活性。Three series of absorbent powder samples were synthesized by the high - temperature solid - state method : the first is that fe / ti mol proportion in the material changes regularly ; the other one is that different thuliums doped in the same absorbent ; the last series is the absorbent was doped by different content thulium. the permittivity and permeability of the modified ilmenite absorbents were systematically measured
通過使原料中金屬離子的摩爾比例( fe ti )作有規律變化、在同一基質中摻雜同含量的不同稀土金屬以及改變同種稀土金屬的摻雜量等手段,採用高溫固相合成法制備了不同系列可供進行吸波性能研究的鈦酸亞鐵類化合物吸收劑。Abstract : it was studied by us that new technologies using strong pulsed magnetic field and electric current were applied to refine metal ' s solidified structure. these technologies improved remarkably the solidified structure of ly12 aluminum alloy and made the solidified grains more equiaxed and apparently finer compared with that of the normal sample, which is of more dendrite grains. the stronger the strength of the pulsed electromagnetic field, the better the improvement effect was. the refinement mechanisms of the new technologies were analyzed theoretically. new phenomena and problems occurred in our experiments were also pointed out in this paper
文摘:提出了用強脈沖磁場和電流細化金屬凝固組織的新工藝.與未經磁場或電流處理的凝固樣品相比,強脈沖電磁場能夠顯著地改善ly12鋁合金的凝固組織,使晶粒明顯細化、球化,電磁場的強度愈強,這種改善效果愈明顯.對該新工藝的細化機理進行了理論分析,同時,指出了實驗中的新現象和新問題The results show that cu and zn tend to be quasi - conservative, whereas cd, co and ni are remobilized over a broad salinity range in the changjiang estuary
和ni在長江口鹽度梯度上固一液相態變化,並將模型輸出結果與長江口幾種金屬的歷史觀測資料進行了對比。分享友人