研粉備用 的英文怎麼說
中文拼音 [yánfěnbèiyòng]
研粉備用
英文
ground into powder for use-
Beryllium powders with the same particle size and various contents of beo were prepared by pre - sintering - acid washing processes initiatively and the influence of beo alone on o mys of beryllium was observed and some new results have been obtained - compared with the content of beo, the distribution of beo in beryllium has more critical influence on mys ; finely dispersed beo along the grain boundaries and in the matrix results in the dispersion strengthening of beryllium matrix and thereby the higher mys value ; on the contrary, the coarser beo particles clustering on the grain boundaries results in negative influence on o mys
開創性地用預燒結? ?酸洗工藝制備了相同粒度、不同beo含量的鈹粉,從而開展了beo含量單獨對鈹材_ ( mys )影響的研究,得出一些新的結果:與beo含量相比, beo在鈹中的分佈狀態對_ ( mys )的影響更大。沿晶界、晶內彌散分佈的較細小beo對基體鈹有彌散強化作用,使_ ( mys )即較高;如果beo較粗大地成簇狀聚集在晶界,反而對_ ( mys )有不良的影響。This thesis reports some results on the hot press sintering of nano - composite wc - co powder, which is prepared by spray pyrogenation & continuous deoxidization and carbonization process
本課題採用熱壓燒結技術對以噴霧熱解?連續還原碳化法制備的納米復合wc - co粉末進行了熱壓燒結研究。Wearproof porcelain plate developed by this factory can be used as inside lining plate, coal delivery pipework, bin, bunker, separation port, wind pipe bend, exhauster, inner pipe of mill fan, air preheater, air fule and various dedust equipment for antifriction. besides, it can extend the service life of equipment
耐磨瓷板系是我廠自行研製的適用於磨煤機內襯板,輸煤管道、料倉、料斗、粗、細粉分離口、一、二次風管彎頭、引風機、排粉機內殼、空氣預熱器、尾部煙道等以及各類除塵系統設備的防磨抗蝕、延長設備的使用壽命。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。Starch nanoparticles ( sn ) have been prepared with w / o starch microemulsion as microreader and epichlorohydrin as cross - linking agent. the factors affecting the preparation of sn have been investigated via the characterization of tem. the results show that the size and size distribution of sn are mainly controlled by the interfacial strength of microreactor, and the interfacial strength of microreactor is chiefly influenced by w value ( the molar ratio of water / surfactant ) and concentration of starch
利用所得到的w o型澱粉微乳液作為微型反應器,以環氧氯丙烷為交聯劑制備出澱粉納米粒,並藉助透射電鏡的表徵研究了各制備因素的影響,研究結果表明:澱粉納米粒的粒徑及粒度分佈主要受微型反應器的界面強度控制,而影響界面強度的因素主要是r值(即水與表面活性劑的摩爾比值)及澱粉液濃度。The results of performance testing showed that the additive of nano - powders can evidently enhance the latex coatings " weathering resistance, scratch resistance, water resistance and alkaline resistance, and do not reduce other performances ; polybasic nano - composite powders have more efficient than single nano - powder ; the dispersing method have biggish effect on performances. observing the stability of nano - additive of exterior latex coating showed there was no viscidity rising, no delaminatiom sedimentation in two months. tryout by plant showed that nano - weatherability additive can obviously enhance the weathering resistance of latex coating and water resistance, and no reducing other capabilities
對其性能研究的結果表明,納米粉體材料的引入,可以明顯提高乳膠漆的耐候性、耐洗刷性和耐水耐堿性能,對其它性能無不良影響;納米多元復合粉體比單一粉體的改性效果明顯;納米粉體的添加工藝對改性乳膠漆性能有較大的影響,採用同普通填料一致的添加方式制備的試樣與採用超聲波預分散后在配漆階段加入制備的試樣相比,後者在穩定性、耐候性等方面的性能都有所提高。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。Lead hydrogen phosphite superfine powder, lead oxide phosphite hydrate superfine powder and tribasic lead sulfate superfine powder were prepared by micro - liquid - phase synthesis method ( mlps method ) in this paper. at room temperature, acetic acid worked as catalyst, lead oxide and phosphite or sulfate were blended thoroughly, then were ground for tens minutes
本文採用微液相合成法制備了亞磷酸鉛、二鹽基亞磷酸鉛和三鹽基硫酸鉛超細粉末,以氧化鉛和亞磷酸或硫酸為原料,以醋酸為催化劑,在室溫下充分混合、研磨幾十分鐘,乾燥后即可得到產物。The two constituents were compatibilized in - situ by mechanochemical reactions induced by pan - milling and the microstructure of the blend can be controlled conveniently by adjusting processing conditions. polyamide 6 / ground limestone powder ( pa6 / caco3 ) and polyamide 6 / silicon dioxide ( pa6 / sio2 ) composites were also prepared through this method. those pa6 blends and composites exhibit improved microstructure and superior mechanical properties to the systems mixed by conventional mixing methods
研究了磨盤碾磨對尼龍6的粉碎機理,制備了就地增容、微相結構可調的聚丙烯/尼龍6 ( pp / pa6 )及尼龍6 /碳酸鈣( pa6 / caco _ 3 ) 、尼龍6 /納米級二氧化硅( pa6 / nano - sio _ 2 )共混復合材料,各體系混合效果、微相結構及力學性能均明顯優于採用傳統混合設備制備的試樣。The disperse degree of the ceramic can greatly affect uniformity of the composite, which limit the poling voltage and affect the piezoelectricity. in this paper, the relationships among constitutes, microstructures, dielectric and piezoelectric properties were calculated by employing the banno unit cell mode ; pzt ceramic were synthesized by the hydrothermal method and the appropriate solution was selected according the adsorption of pvdf on the ceramic particle surface ; then, relationships between the disperse degree and the fabrication process were studied. base on these, the pzt / pvdf composites intermingled some pan were prepared and the microstructures were investigated
論文首先利用bannounitcell模型,計算了pzt pvdf壓電復合材料的組成、結構、與其壓電和介電等性能之間的關系;針對壓電復合材料存在的均勻分散性差的缺點,選用水熱法制備的粒度均勻的pzt陶瓷粉末,並採用溶液混和法與聚合物pvdf進行分散復合,重點研究了不同工藝條件下陶瓷的均勻分散性及其與材料微觀結構之間的關系。The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites
研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體,需要嚴格控制配方中各種原材料的含量,優化配方;由於粉體活性受預燒條件的影響,所以對不同要求的鐵氧體選擇的預燒條件就不一樣,適當降低預燒溫度有利於獲得較高的起始磁導率,而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求,可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件,本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝,適宜的燒結工藝可以獲得理想微結構和組成,從而得到高性能的鐵氧體材料;而從材料的微結構上來看,要提高材料的截止頻率,就要適當地細化晶粒、增加晶粒內部的氣孔。In order to discuss the application of sol - gel in the preparation of biomembrane, the gel membrane of agarose was prepared by sol - gel with acticarbon and agarose as raw material, at the same time, the catalytic activity of immobilized cod based in the membrane was studied
為探討生物傳感器用膜的制備,採用溶膠-凝膠法,以活性炭微粉和瓊脂糖制備了瓊脂糖凝膠薄膜並研究了薄膜固定cod的催化特性。Thermosetting powder coating of low - temperature curing type is a newly - developed powder coating which is used on the things that are not suitable for high - temperture baking. this type of powder coating opens up wider application by lowering curing temperature to 108 - 130. it can be used for surface coatings on such things as flaw detectors, auto water tanks, springs, electrical appliances with coils, instruments, equipment with tin welding seams. it can also be used on the products made of aluminum and magnesium materials, glass, plastics and wood etc
低溫固化型粉末塗料是針對那些不宜高溫烘烤的產品,而最新研製的新品種,它不僅具備一般粉末塗料的特徵,而且可以把固化溫度降低到108 - 130 ,從而拓寬了粉末塗料的應用領域;適用於擦傷機械、汽車水箱、發動機、彈簧、線圈電器、儀器儀表、錫焊條接縫設備、鉛鎂材質、玻璃、塑料、木材等製品的表面塗裝。In order to obtain the strontium titanate nanocrystalline powers materials with small grain, high purity and homo - geneous grain size distribution, the effect of water, waiter - free acetic acid, gel temperature, heat treat temperature and so on were researched
為了制備出晶粒小、材料純度高以及粒徑分佈均勻的納米鈦酸鍶粉體材料,研究了用水量、冰醋酸加入量、凝膠溫度和煅燒溫度等工藝參數對制備納米鈦酸鍶粉體材料的影響。In this work, using elemental powders as starting reactant materials several carbide powders such as wc, sic, tic, zrc and corresponding alloys had been fabricated by ball - milling technique. x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ) and other measurement techniques had been used to monitor the structural changes of powders after some ball milling time and the properties of the cemented tungsten carbides. and the mechanism for the formation of matal carbides by ma has also been discussed
本文主要對機械合金化( ma )技術在碳化物制備中的應用進行了研究,利用高能球磨,以元素粉末為原料,制備出wc 、 sic 、 tic 、 zrc的粉體以及wc基硬質復合材料,並利用x射線衍射、掃描電鏡、透射電鏡等方法分析和研究了球磨過程粉體的變化以及燒結后硬質合金的性能,對機械合金化制備碳化物的有關機理進行了研究和探索。Glass - ceramics used for architecture decoration was prepared by using red mud, fly ash, coal gangue and so on as raw materials
摘要本研究利用山東鋁業公司固體廢棄物赤泥、粉煤灰、煤矸石等為主要原料,制備了裝飾材料用微晶玻璃。The power prepared was examined by many kinds of analytic measures, like as xrd, xps, tem, sem and x rays fluorescence, etc. the sol - gel method was used to synthesize dy - doped titanium oxide, the impact of elements such as solvent ' s quantities, temperature, ph value, calcination temperature on the course of sol - gel is studied, and the quantities of mixed rare earth is also studied on the influence about the structure of phase, thus established the best technology parameter
本文對摻雜稀土元素鏑的氧化鈦和氧化鋯超微陶瓷粉末的制備的工藝過程進行了研究,並用xps 、 xrd 、 tem 、 sem和x射線熒光等多種測試手段對制得的粉末進行了分析。用溶膠-凝膠法合成氧化鏑/氧化鈦的陶瓷粉末,研究了溶劑量,溫度, ph值,煅燒溫度等對溶膠-凝膠過程的影響,以及摻雜稀土量對相結構的影響,從而確立了最佳的工藝參數。Rich technical reserves and high level research workforce enables tian yuan with firm foundations for stable and long - term development and the leading status in scientific research and application in the starch derivative field
雄厚的技術儲備和高水平科研力量為公司的長遠發展以及在澱粉衍生物科研和應用領域繼續保持國內外的領先地位奠定了堅實的基礎。In addition, the preparation of aqueous starch microgel with aqueous solution as reaction environment has been studied. the results show that the important factors affecting the formation of starch microgel are surfactant content, concentration of starch and conversion efficiency of cross - linking reaction
另外,本論文研究了用水溶液作為反應環境制備親水性澱粉微凝膠,研究得到表面活性劑含量、澱粉液濃度及交聯反應的轉化率是影響澱粉微凝膠形成的主要因素。In the site investigation, we adopt a new machine to mold pile, which handling is easy, the moving is convenience, the power cost is low, bulk is small, and provided some relative technics parameter, the site result indicates that the work efficiency of such machine and technics is very high so as to fit to be used in fa - lime - sulfate concrete pile
現場研究採用了一種操作簡單、移動方便、能耗低、體積小的施工設備,並給出了有關工藝參數,現場試驗結果表明所採用設備和工藝工效高,特別適合於粉煤灰-石灰-硫酸鹽混凝土樁的施工,有很廣闊的工程應用前景。分享友人