粉末壓制 的英文怎麼說
中文拼音 [fěnmòyāzhì]
粉末壓制
英文
powder compacting-
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。The machine is applicable to the plasticity material to inhibit the craft, such as hurtles to press, curve, turn over the side, lamella to pull to stretch etc. craft, also can used for correct, pressing to pack, the emery wheel model, the cold crowded metals spare parts model, the plastics product and the powder product of inhibit and model craft
本機器適用於可塑性材料的壓制工藝,如沖壓、彎曲、翻邊、薄板拉伸等工藝,也可用於校正、壓裝、砂輪成型,冷擠金屬零件成型、塑料製品及粉末製品的壓製成型工藝。Pressure that this series the machine still have the extensive and in general use, be applicable to the every kind of plastic to process with take shape, if wash to press, squeeze, flection, fold the side, rivet jointing, orthopedics etc. ; stalk the pressing of set spare parts pack ; the plastics and what powder product inhibits ; stalk with other is similar to the correcting of spare parts ; the pressing of zero parts packs, and the pulling of spare parts of small scaled plank form stretch, type, fall material, press to print various uses of etc
本系列機器還具有廣泛的通用性,適用於各種塑性材料的壓力加工和成形,如沖壓、擠壓、彎曲、折邊、鉚接、整形等;軸套類零件的壓裝;塑料及粉末製品的壓制;軸類和其他類似零件的校正;零部件的壓裝,小型板形零件的拉伸、成型、落料、壓印等多種用途。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。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。In - depth knowledge of supplier base in the following manufacturing processes / products : investment / lost - wax / precision casting, zinc die - castings, aluminum casting ( gravity & pressure ), iron casting, permanent mold casting, sand casting, powdered metallurgy, mim, steel forging, brass forging, cold forming, stamping, deep drawing, fine blanking, machining ( milling, turning, etc. ), sheet metal fabrication, screw machining, cnc machining, mould making, tool & die, assembly, fasteners, springs, etc
對以下金屬製造工藝/零部件的供應商有資深專業經驗:脫蠟/精鑄件,鋅合金壓鑄件,鋁鑄件(澆鑄或壓鑄) ,鐵鑄件,永久模鑄件,沙鑄,粉狀冶金零件,金屬粉末注射成形件,鋼鐵鍛造,黃銅鍛造,冷鍛/冷鐓,沖壓件,拉深引深件,精密下料,機加件(自動車,數控機床,銑,車,磨等) ,板金件,制模及模具裝配、標準件,彈簧類。Steering clutch : multiple - disc oil powder metallurgy disc compressed by spring. hydraulic operated. brake is oil two direction floating band brake operated by mechanical foot pedal
轉向離合器為濕式、多片粉末冶金摩擦片、彈簧壓緊、液壓分離。制動器為濕式、浮動、雙向帶式、腳踏式機械操縱。Combining with characters of powder, the mechanic of powder plastic deformation, the strengthen cause of powder extrusion products, the effect of surface oxide and powder strengthen materials property and formability of powder extrusion products were introduced and discussed in this dissertation
論文結合粉末的特性,對粉末塑性成形的機理、粉末擠壓製品的強化機制、粉末表面氧化物及顆粒強化材料對粉末擠壓製品的性能和成形性的影響進行了述評。In this paper, nanosized al2o3 ceramic particles were chose as reinforcing phase. enhanced with ultrasonic wave the particles were covered with copper using method by electroless plating, the copper - matrix composite was developed by hot - press sintering process of the composite powder. the composition, microstructure, hardness, density and dry sliding wear property of the new material have been studied
研究路線為:選用納米級al _ 2o _ 3陶瓷顆粒作為增強相,在超聲波的環境中用化學鍍的方法完成對納米al _ 2o _ 3陶瓷顆粒表面的金屬銅包覆,採用熱壓燒結成型技術以復合粉末為原料制備成納米al _ 2o _ 3陶瓷顆粒增強銅基復合材料,研究分析復合材料的成分、組織結構、硬度以及緻密度,對試樣進行了干滑動摩擦磨損實驗。Powder metal is often used instead because it is undesirable or impractical to join the elements through alloying or to produce parts by casting or other forming consists of producing small particles, compacting, and sintering. the squeezing pressure with added heat bonds the metal powder into a strong solid. powdered metals can be ferrous, nonferrous or a combination of ferrous and nonferrous elements
金屬合金一般是無孔隙固體;因為煉制出的合金的實際效果不理想,或者通過鑄造和其他成型方式對小的顆粒進行壓制,燒結出來的產品零件無法滿足需求,因而人們常常使用粉末金屬來代替金屬合金。The experimental data has been used to validate pdm and low temperature sintering mechanics. the advantage and disadvantage of pdm have been discussed also. for the first time, the pdm is used to study the low temperature sintering mechanics of uo _ 2, and the research results indicate : 1
3 、基於燒結頸長大速率與緻密化動力學方程得出,影響二氧化鈾低溫燒結的因素有原始粉末粒徑、粉末堆積方式、坯塊原始密度、燒結溫度、燒結時間、燒結氣氛等;粉末壓坯一定時,燒結溫度、燒結時間和燒結氣氛就成為控制低溫燒結的關鍵因素。( 3 ) the most principal factors that influence the supersonic atomization process include the flow ratio of the gas - liquid metal ( gmr ) value, the flow of atomizing of gas and the range of the inverse vortex taper. the more of the value of three factors, the more advantage they are for the atomization and the more fine the powders are. ( 4 ) the produced powders are the best in efficient atomization efficiency, particle diameter, particle shape and dispersion when the solder alloy is zhl63a, atomizing medium is n2, the protrusion h = 6. 0mm, atomizing gas pressure p = 100mpa, over - heat temperature t = 167 ( t = 350 )
研究結果表明: ( 1 )超音速霧化器的氣體流場在導液管下端形成一個倒渦流錐,在二維空間上呈軸對稱的雙峰分佈,負壓形成於這個倒渦流錐內; ( 2 )修正後的霧化氣體速度公式可以滿足超音速霧化的要求; ( 3 )影響超音速霧化工藝最根本的因素有氣液質量流率比( gmr )的大小、霧化氣體流量和倒渦流錐范圍,三個因素的值越大,對形成細粉越有利; ( 4 )在焊錫合金為zhl63a ,霧化介質微n _ 2 ,導液管突出高度取h = 6 . 0mm ,霧化氣體壓力取p = 1 . 0mpa ,合金過熱度取t = 167 ( t = 350 )時,所制得的粉末在有效霧化率、顆粒球形度、粒度及其離散度三個方面綜合性能最好。Water atomization is a technique that can commercially and high - efficiently manufacture iron & steel powders. the key in their production technique is the high - pressure water atomization and the green powder reduction at an elevated temperature
水霧化制粉是一種適用於規模化、高效率生產高性能鋼鐵粉末的技術,其生產技術的核心是高壓水霧化技術和原生粉末高溫還原技術。The relative density of the powder flan was well controlled by design of the press process. the property of the flan was good
本文通過壓制工藝的設計,有效的控制了mo - cu粉末生坯的壓制密度,得到了質量良好、相對密度符合預先設計要求的mo - cu粉末壓制生坯。Finite element method simulation of aluminum powder compaction process
鋁粉末壓制過程有限元模擬研究Ceramic powder compaction
陶瓷粉末壓制Metallic powders ; determination of green strength by transverse rupture of rectangular compacts ; identical with iso 3995 : 1985
金屬粉末.用矩形粉末壓制坯塊的橫向斷裂測定壓坯強度In this dissertation, eu2o3 - sc2o3, y2o3 - sc2o3 co - doped tungsten powders and impregnated cathodes related to these powders have been prepared by pressing, sintering and impregnating for the first time
本論文首次制備了復合稀土eu2o3 - sc2o3 、 y2o3 - sc2o3摻雜的鎢粉,通過粉末壓制、燒結和基體浸鹽的工藝制備了相應的復合稀土/氧化鈧-鎢基擴散陰極。Standard practice for sample preparation for x - ray emission spectrometric analysis of uranium in ores using the glass fusion or pressed powder method
使用玻璃熔化或壓制粉末法制備礦石中鈾的x射線發射光譜分析用樣品的標準實施規范Tic, zrc and cu - 50 % tic were fabricated by reactive ball milling using ti, zr, c and cu powders for raw materials. compound powders were prepared by ball - milling with raw powders that have been fabricated. dispersion strengthen cu - based materials was synthesized at last though a set of technical course that consist of different pressing technique, sintering technique and heat extrusion technique
本課題以單質ti 、 zr 、 c和cu粉末為原料,用反應球磨技術制備了tic 、 zrc和cu - 50 tic原料粉末,將制備的原料粉末和cu粉用球磨混合,制備出cu - tic 、 cu - zrc和cu - ( tic + zrc )復合粉末,然後設計不同的壓制工藝和燒結工藝進行壓制、燒結和熱擠壓,最終獲得高強度的彌散強化銅基復合材料。分享友人