fine powders 中文意思是什麼
fine powders
解釋
精細粉末-
This kind of device effect fine, specially offer to heat power plant use for such as fluidized bed furnace, coal powder pipe line, furnace negative pressure and flue negative pressure measuring to blow continually, as to prevent coal powders and bacco ashes stop up the sampler, ensure automation instrument of power plant normally running and production security
這種裝置效果良好，專供國內外火電廠硫化床爐煤粉管道爐膛負壓和煙道負壓測量中連續吹氣用，以防煤粉和煙灰堵塞取樣頭，確保電廠自動化儀表正常運行和生產的安全性。 -
Apply to fine, floury or flushy materials : flour, milk powder, hemical powders etc
適用於細狀流動性的物料? ?麵粉、奶粉、粉狀化學品等。 -
Ultra - fine powders, particles of the group c according to the geldart classification, are very adhesive and hard to fluidize by conventional methods, hence they were rarely used as fluidization materials in the past
超細粉由於粘附性很強，按傳統方法流化時難以實現平穩流化，所以，在過去流化時通常都不採用這類顆粒。 -
Characters and features : red powders, fine particle, in good dispersancy, good impenetrability to ultraviolet ray, stable in atmosphere and sunlight, good light resistance, good thermal endurance, good alkali resistance, dissolved only in hot strong acid
性狀特點：為紅色粉末，粉粒細膩，分散性良好，對紫外線有良好的不穿透性，在大氣和日光中較穩定其耐光、耐熱和耐堿性良好，僅溶於熱的強酸中。 -
Sieve analysis of fine powders with air - jet sieve - apparatus
用空氣噴射篩裝置對精細粉末進行的篩分析 -
Determination of particle size distributions for fine ceramic raw powders by laser diffraction method
激光衍射法對細陶瓷原料粉末的粒子尺寸分佈進行的測定 -
Therefore it is reasonable that special surface of steel - making slag powder is controlled in the rang between 450 - 500m2 / kg. furthermore, when special surface of different steel - making slag powders are close, steel - making slag powder, which surface is attached lot of fine particle powder or which degree of roundness is high, has higher cementitous property
實驗結果表明，提高比表面積可提高鋼渣粉的膠凝性能，但當比表面積超過500m ~ 2 kg時，鋼渣粉的膠凝性能提高已不顯著，鋼渣粉的最佳比表面積應控制在450 500m ~ 2 kg之間；比表面積相近時，表面有細小顆粒吸附且顆粒圓形度高的鋼渣粉有相對較高的膠凝性能。 -
A series of ultra - fine, homogeneous powders and density pellets were synthesized, li3. 4si0. 4v0. 6o4 as the matrix and the lithium salt and other oxides as the second phase
O 。固溶體為基質，以不同種類的氧化物或理鹽為第二相，合成了一系列復合理離子導體的超細粉體和均勻、緻密的燒結體。 -
Determination of content of coarse particle in fine ceramic powders by wet siezing method
用濕篩法測定細陶磁粉中粗粒子的含量 -
Fine ni3al powders with an average grain size of 6. 1 m were firstly prepared by shs method and mechanical grinding for 36ks with the ratio of ball to powder at 3. 5. the effects of grinding condition and heat treatment technique on the morphology, microstructure and composition as well as crystal structure of the prepared ni3al powders were discussed
首先採用機械粉碎法在36ks的粉碎時間和球料比為3 . 5的工藝條件下獲得了平均粒度為6 . 1 m左右的ni _ 3al微粉，重點討論了粉碎條件及熱處理工藝對ni _ 3al微粉的形貌、微觀結構、物相組成和晶體結構等的影響。 -
From this work, a new way to improve the fluidization quality of the ultra - fine powders is found, and the studying result can supply as a basis of further investigation and be able to be used in the design of a spouted bed with a draft tube for the ultra - fine powders
本研究為改善超細粉的流化質量提供了一種新的思路，研究成果為進一步四川大學碩士學位論文開展有關基礎研究和開發超細粉導向管噴動床反應器提供了良好的基礎。 -
However, following the rapidly growing application of the ultra - fine particles in industry, fluidization of the ultra - fine powders has become a significant emerging field in recent years. and how to improve fluidization quality is a key point for further investigation
但近年來，隨著超細粉體技術的發展以及對超細粉加工的需要，超細粉流態化技術的研究和應用日益受到人們的關注，特別是如何改善流化質量正逐漸成為研究的重點和熱點。 -
It was found that the ultra - fine powder can flow smoothly in a spouted bed with a draft tube under some sorts of design parameter and operating condition, thus a new effective method to improve fluidization quality of the ultra - fine powders is obtained ; at higher supplied gas velocity, an increase in the solid circulation rate is observed ; the extent of the distance between the nozzle and the draft tube inlet result in the promotion of the solid circulation rate ; the solid circulation rate increase with increasing the draft tube diameter or the bed mass ; the gas bypassing is nearly zero in the present work ; and the solid flow in the annulus is observed as a moving bed
結果表明：在一定的床層結構和操作條件下，超細粉可以在導向管噴動床中實現平穩流化，從而為改善超細粉的流化質量提供了一種有效的新方法；固體循環速率與噴動氣流量、導向管直徑、導向管底部與噴嘴出口間距以及床層裝填量成正比；氣體則基本上不存在「旁路」現象；環隙區中的顆粒流動表現為一移動床特徵。 -
The results showed that the water absorption ability of food super - fine powders could be determined stably and effectively by the self - made equipment, the water absorption abilities were different when the powders were made from different kinks of grains : the powders began to absorb water earlier and the speed of water absorption became rapider while the particle size of the powders was smaller, and the speed suddenly tended to increase and reached the limit value when the particle size of the powders was up to a certain value
實驗結果顯示：根據毛細原理自製的毛細吸水測定儀能穩定、有效地測定食品超細粉的吸水性；不同來源的超細粉吸水性不同；同一種食品超細粉粒度越小，吸水開始早、吸水速度越快；超細粉粒度達到某一粒度值時，吸水速率突然增大並達到極限。 -
When grounded into fine powders, green petroleum cokes with some content of volatiles can be directly molded and sintered without any additionally added binder. this special self - sintered raw carbon marerials can be fabricated into isotropic carbon marerials with high strength and high buck density
含有一定揮發份的生石油焦經超細研磨后無需添加粘結劑可以直接進行成型和燒結，這種特殊的自燒結碳素原料可以制備高強高密的各向同性碳素材料。 -
Similar in design to the continuous weigh feeders, capable of batches from ounces to tons, feeding materials from liquids and fine powders to fibrous or flaky materials
批量式喂料稱的設計和連續式很相似，喂料的批量能力從少量到噸級，適合的物料從流體和精細粉末到纖維狀或者片狀物料。 -
We have developed a set of supersonic atomizing equipment with the base theory of the supersonic atomization and the base characteristic of the solder alloy. the paper studies systematic the production technology and process of the solder alloy fine powders in the equipment, and deduces the gas velocity formula used in supersonic atomization in theory
為此，運用超音速霧化的基本原理和焊錫合金的基本性質，研製出一套超音速霧化裝置，在該裝置上對焊錫合金微粉的制備技術及工藝進行了系統的研究，並從理論上推導出適用於超音速霧化的氣體速度公式。 -
Powders, especially ultra - fine powders, which have many advantages, such as fine particle size, large specific surface, high surface reactivity, are widely used
粉體特別是超細粉體，因具有粒子細，比表面積大，表面活性高等特點而得到廣泛應用。 -
Better results can be obtained when fine powders were collected by electrostatic precipitator. the tio2 powders were characterized by scan electron microscope, transmission electron microscope and x - ray diffraction analysis
通過比較發現，靜電收集器收集熱噴塗法制備中的細顆粒、小密度粉末效果較為理想。 -
The fine powders of the solder alloy are one of the key materials in the smt, the requirement as following : the particle diameter is in 5 u m ~ 74 u m, the shape is spherical and the distribution of the particle size is uniform
表面組裝技術（ smt ）已廣泛應用於電子工業中，而焊錫合金微粉是該技術的關鍵材料之一，通常要求：粉末粒徑5 74 m ，形狀為球形，且粒徑分佈均勻。
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