本文選題：擺動(dòng)式球磨機(jī)　切入點(diǎn)：機(jī)械合金化　出處：《吉林大學(xué)》2012年碩士論文

【摘要】：擺動(dòng)式高能球磨機(jī)是一種新型高能高效球磨機(jī)。本文從動(dòng)力學(xué)分析和實(shí)驗(yàn)研究兩個(gè)方面論證了擺動(dòng)式球磨機(jī)高球磨效率的顯著優(yōu)點(diǎn)。應(yīng)用齊次坐標(biāo)變換理論、MATLAB編程、CATIA建模、RecurDyn動(dòng)力學(xué)仿真軟件進(jìn)行了動(dòng)力學(xué)分析，得出擺動(dòng)式球磨機(jī)在空間做八字形運(yùn)動(dòng)軌跡的結(jié)論。這種復(fù)雜的空間八字形運(yùn)動(dòng)使球磨罐內(nèi)的磨球產(chǎn)生多頻率多強(qiáng)度的碰撞運(yùn)動(dòng)，進(jìn)而使研磨粉體得到更充分快速的研磨。這就克服了以往球磨機(jī)平面行星式運(yùn)動(dòng)的缺點(diǎn)，使球磨機(jī)的運(yùn)動(dòng)由平面運(yùn)動(dòng)變?yōu)榭臻g運(yùn)動(dòng)。 對擺動(dòng)式球磨機(jī)球磨能量進(jìn)行了理論與實(shí)驗(yàn)分析，發(fā)現(xiàn)研磨粉體接近納米級時(shí)產(chǎn)生粉體附著磨球表面致使球磨能量下降的問題。為了解決磨球的粘附現(xiàn)象，本文參考并借鑒行星式球磨機(jī)所采用的利用加速度產(chǎn)生的反作用力使粉體顆粒脫離磨球表面的方法。采用變頻控制電動(dòng)機(jī)轉(zhuǎn)速使球磨機(jī)按照宏觀正余弦的規(guī)律進(jìn)行工作，有效避免了在脈沖式調(diào)速方式下，電動(dòng)機(jī)頻繁啟動(dòng)對電機(jī)沖擊大的缺點(diǎn)，同時(shí)可以獲得較高的球磨效率。 機(jī)械合金化制備Ti_3AlC_2對比實(shí)驗(yàn)，，得出：擺動(dòng)式球磨機(jī)球磨3h后，Ti、Al、C單質(zhì)粉末的衍射峰消失，混合粉末發(fā)生化學(xué)反應(yīng)生成以Ti_3AlC_2(特征峰為2θ＝9.5°)為主晶相，并含有少量TiC的混合粉體（Ti_3AlC_2的含量達(dá)到83%）。行星式球磨機(jī)在球磨3h后剛開始出現(xiàn)少量Ti_3AlC_2相，但其衍射峰寬度小，強(qiáng)度不高，實(shí)際上并沒有產(chǎn)生大量Ti_3AlC_2相，且3h時(shí)C單質(zhì)衍射峰還沒有完全消失。實(shí)驗(yàn)說明擺動(dòng)式球磨機(jī)比行星式球磨機(jī)具有更高的球磨效率。
[Abstract]:Swing high energy ball mill is a new type of high energy and high efficiency ball mill.In this paper, the remarkable advantages of high ball milling efficiency of swing ball mill are demonstrated from two aspects of dynamic analysis and experimental study.Based on the homogeneous coordinate transformation theory, the CATIA modeling software RecurDyn dynamics simulation software is used to analyze the dynamics, and the conclusion is drawn that the swing ball mill does the octahedral trajectory in space.The complex spatial octahedral motion causes the grinding ball in the ball mill tank to produce multi-frequency and multi-intensity collision motion, which makes the grinding powder more fully and quickly ground.This overcomes the shortcomings of the planar planetary motion of the ball mill in the past and changes the motion of the ball mill from the plane motion to the space motion.The theoretical and experimental analysis of ball milling energy of oscillating ball mill is carried out. It is found that when the grinding powder approaches the nanometer level, the ball milling energy decreases when the powder adheres to the ball surface.In order to solve the adhesion phenomenon of grinding ball, this paper refers to the method used by the planetary ball mill to use the reaction force produced by acceleration to make the powder off the surface of the grinding ball.The frequency conversion control of motor speed makes the ball mill work according to the law of macro sine cosine, which effectively avoids the disadvantages of frequent starting of motor to the motor under pulse speed regulation, and can obtain higher ball milling efficiency at the same time.The comparative experiment of Ti_3AlC_2 prepared by mechanical alloying shows that the diffraction peak of TiAL-C simple powder disappears after milling for 3 h, and Ti3AlC-2 (characteristic peak is 2 胃 ~ 9.5 擄) is the main crystal phase formed by chemical reaction of mixed powder, and the main phase is Ti3AlC2 (characteristic peak is 2 胃 ~ (9.5 擄)).The content of TiS _ 3AlC _ 2 mixed powder containing a small amount of TiC is 83%.A small amount of Ti_3AlC_2 phase appeared in the planetary ball mill only 3 h after milling, but the diffraction peak width was small and the intensity was not high. In fact, no large amount of Ti_3AlC_2 phase was produced, and the C single mass diffraction peak did not disappear completely at 3 h.The experiment shows that the swing ball mill has higher milling efficiency than the planetary ball mill.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TD453;TH113

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 何雪濤,程源,黃鐘,楊衛(wèi)民;單自由度多剛體系統(tǒng)動(dòng)力學(xué)分析[J];北京化工大學(xué)學(xué)報(bào)(自然科學(xué)版);1999年03期

2 何雪濤,程源,黃鐘,楊衛(wèi)民;齊次坐標(biāo)變換在空間機(jī)構(gòu)分析中的應(yīng)用[J];北京化工大學(xué)學(xué)報(bào)(自然科學(xué)版);1999年01期

3 楊晨;賈樹勝;金松哲;梁寶巖;;機(jī)械合金化制備Ti_3AlC_2陶瓷材料的研究[J];稀有金屬材料與工程;2007年S3期

4 莫志宏;;納米技術(shù)的研究[J];化學(xué)工程與裝備;2010年07期

5 魏浩巖,黃正;機(jī)械合金化Al_3Ti/Al合金顯微組織高溫穩(wěn)定性研究[J];機(jī)械工程材料;2000年02期

6 石紅玉;納米材料在汽車工業(yè)中的應(yīng)用[J];汽車工程;2003年02期

7 張?jiān)浇?宋健,張?jiān)魄?任衛(wèi)群;多體系統(tǒng)動(dòng)力學(xué)分析的兩大軟件——ADAMS和DADS[J];汽車技術(shù);1997年03期

8 喬燕雄;劉衍平;;基于RecurDyn的帶式輸送機(jī)起動(dòng)階段的動(dòng)態(tài)分析[J];起重運(yùn)輸機(jī)械;2010年04期

9 郭文華;張軍劍;王明華;;納米材料技術(shù)的發(fā)展及應(yīng)用[J];陶瓷;2008年07期

10 萬卉;胡國明;鮑務(wù)均;劉麗萍;袁濤;;球磨機(jī)的磨介碰撞能量及能量分布[J];武漢大學(xué)學(xué)報(bào)(工學(xué)版);2007年03期

相關(guān)碩士學(xué)位論文 前2條

1 李東輝;機(jī)械合金化TiAl基合金復(fù)合材料的制備及其組織性能的研究[D];合肥工業(yè)大學(xué);2006年

2 趙濤;納米吸附材料的制備及其在染料廢水處理中的應(yīng)用[D];武漢工業(yè)學(xué)院;2008年

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