【正文】 列圖示代表之。 159 series散熱風(fēng)扇臺達(dá)電子(Delta) , model：AF0912VH5J19，轉(zhuǎn)速4200RPM177。比如，論文必須要有提綱，論文格式必須規(guī)范，內(nèi)容要充實等。我們從心底感謝三年來老師對我們的諄諄教誨，感謝學(xué)校為我們提供了一個良好的學(xué)習(xí)環(huán)境。 ℃ (環(huán)境溫度 23 177。在一個系統(tǒng)中，輸入的功率為Q，功率的熱量計算如下：Q = I V 31I 電流 (Ampere)V 電壓 (Volt)測試時在蒸發(fā)區(qū)輸入一定功率后，紀(jì)錄冷凝區(qū)與蒸發(fā)區(qū)的溫差，帶入式21 (RHP =4T/Q)可求得熱管之熱阻，實驗中之熱管輸入功率由電源供應(yīng)器所提供，步進(jìn)式地調(diào)高輸入功率并持續(xù)紀(jì)錄兩區(qū)的溫差，當(dāng)功率持續(xù)輸入時會發(fā)現(xiàn)蒸發(fā)區(qū)的溫度與冷凝區(qū)的溫度會等效性的上升，而求取出對應(yīng)的熱阻值。(測漏的目的主要是檢測熱管抽真空與封合制程確實，確保熱管內(nèi)部維持低壓狀態(tài))。在氬弧焊的作用下，利用旋轉(zhuǎn)的馬達(dá)達(dá)到封合頭端的作用。之后素材管的另一端， 之導(dǎo)孔(縮尾端)， 所示，做為封合焊接的前置準(zhǔn)備。榮熱管、不銹鋼．鈉熱管等等。(1)按照熱管管內(nèi)工作溫度區(qū)分但人們發(fā)展了另一種熱管——可變導(dǎo)熱管，使得冷凝段的熱阻隨加熱量的增加而降低、隨加熱量的減少而增加，這樣可使熱管在加熱量大幅度變化的情況下，蒸汽溫度變化極小，實現(xiàn)溫度的控制，這就是熱管的恒溫特性。一根水平放置的有芯熱管，由于其內(nèi)部循環(huán)動力是毛細(xì)力，因此任意一端受熱就可作為蒸發(fā)段，而另一端向外散熱就成為冷凝段。(2)優(yōu)良的等溫性(3)蒸汽腔內(nèi)的蒸汽從蒸發(fā)段流到冷凝段； 熱管的基本工作典型的熱管由管殼、吸液芯和端蓋組成，將管內(nèi)抽成1．3(10負(fù)1－－－10負(fù)4)Pa的負(fù)壓后充以適量的工作液體，使緊貼管內(nèi)壁的吸液芯毛細(xì)多孔材料中充滿液體后加以密封。但是毛細(xì)半徑的大小又與滲透率成正比。素材選用需有熱阻小及厚度薄兩大特點，管素材之熱阻越小，越能減少容器內(nèi)壁及外壁之溫度差；而厚度則是取決熱管是否好加工的重要關(guān)鍵。例如Maezawa 的文獻(xiàn)中針對熱管在電子散熱上的應(yīng)用中(Maezawa and Fujitsu Co.) 所示，利用熱管嵌入鋁片中做成散熱模塊應(yīng)用于筆記型計算機(jī)的散熱。就因為講求輕薄短小，各個電子組件也想辦法盡量集中。評估熱管的制成的優(yōu)良主要的判別方式為同樣測試條件下，導(dǎo)管良率的提高。 the powder labor, in front of on sintering furnace, often can create leaks the powder, falls the powder, stops up undesirable tendencies and so on powder, creates in after section working procedure, revolving welds the welding not good to leak air and except the gas welding irrigation working procedure in, is unable not good drive pipe which pours water. The this article main discussion is the experiment in the different system regulation, the working procedure change leaks the powder to the drive pipe, falls the powder, stops up undesirable tendency and so on powder improvements as well as to the drive pipe performance influence.Appraised the heat pipe makes fine main distinction way for similar test condition under, drive pipe good rate enhancement. Penetrates experimental the step to gauge the most greatly hot biography quantity first, then uses the formula seeking biggest heat flux the value, pared with heat pipe under different system regulation, good rate improvement, so as to reorganizes the system regulation the improvement to the drive pipe performance influence. The same drive pipe, newly made regulation induction, the big stop has leaked the powder, falls the powder, stops up undesirable tendencies and so on powder, as well as stands good to in entire drive pipe production each labor rate all has the enhancement, moreover reduced the manufacture manhour overall, enhanced the production efficiency.目錄：第一章 概論............................................4 前言...............................................6 研究動機(jī)與目的.....................................8 文獻(xiàn)回顧..........................................11第二章 熱管的結(jié)構(gòu)與功能...............................13. 熱管結(jié)構(gòu)組成及功能分析...........................16....................................19. 熱管的基本特性...................................23............................... ........24................................25第三章 熱管制作工藝...................................26 素材加工........................................26 端部加工........................................27 置網(wǎng)............................................27 清洗............................................28 填粉 ...........................................29.........................................29...................................29...........................................29 工作液體充填....................................30 抽真空、封合及測漏...............................31 彎管與壓管......................................32 老化測試........................................34(4T)測試.................................39第四章 實驗結(jié)果與討論…………………………………………39 新，舊制程各工序差異及優(yōu)劣比較…………………………41 ………………………