pressing density 中文意思是什麼
pressing density
解釋
壓制密度-
Back covered porous brick has been developed in the late period of 1990 ' s, and is produced by semi - dry - pressing method. it has such many advantages as high production efficiency, energy saving, high density, beautiful appearance, high strength, easy bricklaying, and can save 1 / 3 masonry mortar compared with solid brick
盲孔多孔磚是20世紀90年代後期研製成功的、用半干壓法壓製成型的封底多孔磚，它生產效率高，節約能耗，產品緻密，外形好，強度高，易砌築，用於砌體工程時，可節約1 3砂漿。 -
Have been put into use and upgraded for many years, perfect quality and tehnology obtained day by day. introduced hot pressing high frequency adhesive equipment and high density sewing machines are used to make the body of airboat, the parts of the body is sewed together in high density before they are adhesived by hot high frequency, three strings used as safety belt are added to the body, the clothe for the body has been strictly examined to ensure no gas escaping
遙控航空廣告飛艇艇身採用先進的進口導軌輥壓高頻熱合機及高密腳工業縫紉機承製。艇體在艇瓣熱合之前先用結實的線將合線緊密縫合，然後用高頻熱合機熱合，並在艇體上加制了三道束身安全腰帶，艇體布料經過嚴格的光透檢漏法嚴查，確保不漏氣。 -
Firstly, the comparation study between the wedge pressing and the contour forging has shown that the transverse deforming initiated from the surface of the preforms. when the superficies reached the moulding wall, the deforming moved downwards as the high - direction deforming increased, till the moulding chamber was full of stock ; the transverse deforming of the moulding pressing stock initiated from the center of the stock then surned into a drum - type. the distribution of the density and hardness of the high - direction indicated that the wedge pressing acquired a better ability of pressing penetration
首先對比研究了楔形壓制工藝與模壓緻密化工藝，發現楔壓坯料的橫向變形從上表層開始，當上表面與模壁接觸后，隨著高向變形量的增加逐步向下移動，直至坯料充滿模腔;模壓坯料的橫向變形從坯料中間開始，形成鼓形。高向的密度、硬度分佈表明楔壓比模壓具有更好的壓透能力。 -
The density of this target was 5. 21 g / cm3, which was 94 % of the theoretic density of the licoo _ 2 。 in cold pressing and sintering process different percentage of binder were added to the target and the best percentage was found
其中使用碳化硅模具，制備出純度和密度較高的熱壓靶材，靶材密度為5 . 21g / cm3 ，達到licoo _ 2理論密度的94 % 。 -
Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great
採用雙向楔形壓制，大尺寸噴射沉積5a06鋁合金楔壓坯的組織和性能變化具有如下特點:當高向變形量為20 %時，大的孔洞變形破碎為小的孔洞，或呈線狀孔;隨著高向變形量的增加，顆粒進一步變形，孔洞進一步破碎，大孔「吞併」小孔，小孔塌陷並逐步消失;當高向變形量達到60 %時，孔洞量大為減少，材料基本緻密，組織趨于均勻，楔壓坯料的密度、硬度變化曲線接近水平線，坯料的相對密度達99 . 7 % ，抗拉強度_ b = 408mpa ，屈服強度_ （ 0 . 2 ） = 289mpa ，延伸率= 13 . 6 % ;對比其它的壓制溫度，在450楔形壓制的坯料組織均勻，孔洞及顆粒邊界基本消失，顆粒之間冶金結合良好。 -
Compared with those of as - sprayed ring, hardness and tension strength of area near processing face are increased by 45 % and 40 % respectively. friction mechanical performance of the ring is improved at large extent, and especially the wearing amount is merely 13 % of as - sprayed rings. after dual - direction cyclic pressing, the pore - closed state and the distributing of density and hardness are nearly identical in every part of ring. the friction mechanical property is close to that of single - direction - cyclic - press ring
靠近壓力加工面部位，硬度較沉積坯提高了45 % ，拉伸強度較沉積坯提高了40 % 。雙向楔壓后孔洞閉合、密度硬度分佈都比較均勻。單向楔壓后，用壓力加工面作為摩擦面， al - 20 % si / sicp復合材料的摩擦磨損性能得到大幅度提高，尤其磨損量為楔壓前的13 % 。 -
In this paper, aluminum foams with 40 % - 80 % porosity. 2 - 5mm pore diameter, and 0. 4 - 0. 6 restive density, were produced by the p / m method, i. e. by mixing 6061 powders and blowing agents and pressing them to densification, then foaming
本論文闡述了粉體發泡法制備泡沫鋁的工藝，即把少量的發泡劑（ tih _ 2粉末）和6061鋁合金粉末混合均勻，然後壓製成試樣，再進一步熱壓，最後在金屬基體熔點附近發泡。 -
Relative density of composite pressing powder has no effect on linked interface
相對密度對結合情況無多大影響，說明同種材料的結合不存在多大問題。 -
Under the same conditions of hot - pressing time, composite density, pe ratio, and resin content, the optimum properties of the composites can be obtained when hot - pressing temperature is 190 degrees c
當在熱壓時間、聚乙烯比例、施膠量、復合材料密度相同的條件下，熱壓溫度為190時壓制出的麥秸聚乙烯復合板材各項物理力學性能較好。 -
On the same condition of hot - pressing time, hot - pressing temperature and density of composite, the optimum properties of composite were obtained when recycled polypropylene content is 40 % by using mdi as coupling agent and recycled polypropylene content is 50 % by using ma as coupling agent
在熱壓時間、熱壓溫度、復合材料密度相同的條件下，用異氰酸酯（簡稱mdi ）作偶聯劑，聚丙烯用量40 %時復合材料的性能最佳；而用馬來酸酐（簡稱ma ）作偶聯劑，聚丙烯用量50 %時復合材料的性能最佳。 -
Abstract : through copolycondensation method, a phenol - melamine - urea - formaldehyde resin was prepared. the discussion was concentrated on the preparation method of the resin and it ' s application condition in pressing exterior - type medium density fiberboard
文摘:通過共縮聚的方法，制備了具有良好的耐水性能和膠合性能的苯酚-三聚氰胺-尿素-甲醛樹脂。著重討論了該樹脂的制備方法以及在壓制室外型中密度纖維板中的應用情況。 -
We analyze the microstrain and density changing of the composite powders during pressing. the density evolution of ti / al composite billet became calm when the pressure get to 1000mp. the technique of vacuum degassing can reduce the content of atmosphere
分析了復合粉在冷壓制過程中的微觀變形過程，不同壓力下的密度變化趨勢，表明在冷壓制壓力達到1000mpa后復合粉預制坯密度變化趨于平穩。 -
With the development of society, people increase the demand for medium density fiberboard constantly. it is an extremely urgent problem to set up the control system of the hot - pressing product line of mdf with higher automatic degree
隨著社會的發展，人們對中密度纖維板的需求不斷增加，因而研究中密度纖維板的熱壓生產線的控制方式，建立具有較高自動化程度的控制系統是迫在眉睫的問題。 -
Abstract : based on the analysis of the pressing properties of loading materials for initiating explosive device, a system of automatic explosive pressing device was developed with the theory of intelligent control, so the automation of the pressing process was achieved, and the density identity of loading materials was enhanced significantly
文摘:在分析火工品藥劑壓藥特性的基礎上，結合智能控制理論，研製了一臺自動壓藥機系統，實現了壓藥工藝過程的自動化，大大提高了壓藥密度的一致性。 -
Therefore, a new technology, which consists of the preparation of nanocrystalline ti / al composite powders with extremely fine lamella microstructure by mechanical milling ( mm ), the subsequent consolidation and densification of the composite powders by pressing, the composite powders has been put forward to fabricate tial alloys with fine and homogeneous microstructure and highly density. research on the following aspects has been accomplished
為此，本文提出了機械球磨製備極細ti 、 al交替層片結構的納米晶ti / al復合粉，再經常溫壓制緻密，從而獲得具有高緻密度和細小均勻組織的tial復合粉末坯料為后續的研究做好準備，並著重進行了以下幾方面研究。 -
The study indicated that intensity of materials was enhanced because tic and zrc diffused in cu matrix, and counterworked the motion of dislocation. the cu - based composite materials that prepared in situ synthesis have more fine capability. the upper density was gained when pressing pressure was increasing, and sintering temperature was 800
研究表明， zrc 、 tic在銅基體中形成彌散強化，阻礙位錯移動，提高材料的強度；用原位合成的cu - 50 tic粉末做原料制備的銅基復合材料具有相對優良的綜合性能；提高壓制壓強，在800燒結可得到較高的緻密度，而材料緻密度的提高會提高材料的各項性能。 -
Thirdly, magnet can get high density under lower pressure easily, using heating - pressing process
與普通壓制工藝相比，溫壓工藝更有利於在低壓力下得到高密度的磁體。
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