【正文】 管是在聯(lián)合制管機上能夠以 7～ 10 個工序滾壓成型，通過7~10 組特殊的導板和滾輪逐漸的彎曲成型，在成型的最后過程中，帶料差不多卷成圓形時，再繼續(xù)前行，帶 料將碰到一個圓定不動的扁型斷面芯板 ,芯板斷面的形狀、尺寸和欲制造的管子內(nèi)部形狀相同，然后連續(xù)的進行焊接，進入釬焊爐，將咬口部位和外表面同時鍍錫，冷卻后，用幾組校直滾輪矯正端面形狀 ,扭曲度等 ,然后按所需的長度自動切斷。用一個或多個指標從一個方面或幾個方面來評價換熱器的性能問題一直是專家長期以來所探索的問題，目前尚在研 究改進中。這種換熱器雖然換熱效率高，但因兩種流體的相互混合，故其在應用上受到一定的限制。換熱器的分類方法有很多，最基本的是按照工作原理來分：通?？煞譃榛責崾?、混合式和間壁式三大類。在提高散熱器的散熱效率的情況下同時考慮降低散熱器的散熱阻力，合理選擇使用板片材質(zhì)和橡膠密封墊材質(zhì)，使用正確的安裝方法，才可保證 設備安全運行，延長設備的使用壽命。 畢業(yè)設計 (論文 )有關(guān)外文翻譯 院 系： 機械 工程學院 專 業(yè)： 11 接本 （ 2）班 姓 名： 學 號： 104611252077 指導教師： 完成時間： 2021 年 05 月 1 日 1 緒論 選題的背景及意義 隨著汽車發(fā)動機轉(zhuǎn)速和功率的不斷提高，熱負荷也愈來愈大，對冷卻系統(tǒng)的要求也越來越高，人們對包括散熱器在內(nèi)的冷卻系統(tǒng)的研 究愈加重視，新技術(shù)、新材料不斷涌現(xiàn)。 因此如何提高散熱器的傳熱效能是一個綜合性的經(jīng)濟效益問題，應通過技術(shù)經(jīng)濟比較后確定。 1 Introduction Background and Significance topics Power continues to increase, more and more large heat load on the cooling system requirements are also increasing , people including the radiator cooling system pay more attention to research , new technologies , new materials emerging. The advantages of automotive aluminum radiator products is reflected in the lightweight , high reliability , low prices and the production of environmentally friendly vehicle plant to replace the original copper aluminum radiator auto radiator tank is the inevitable trend of technological development . Currently, the auto radiator is moving light , efficient and economic direction, more than 90% of domestic passenger car is aluminum radiator, in recent years, the use of mercial vehicles have gradually adopted and is growing . Therefore, how to improve the heat transfer performance of the heat sink is a prehensive economic issues , through technical and economic parison OK. Improve the efficiency of the heat sink in the case of taking lower radiator cooling resistance , a reasonable choice to use Plate material and rubber gasket material, using the correct installation method can ensure the safe operation of equipment , extend equipment life . Through puter simulation, you can heat the pipe band performance is more superior, more rational structure , economy stronger .On the other hand , the rapid development of modern puter technology and progress but also for the optimization of the radiator pipe belt design provides a strong technical support, so pipe radiator with the optimal design for the modern sustainable industrial development has a number of farreaching significance . 車用散熱器的分類 能滿足某種規(guī)定工藝的要求使得熱量從熱流體到冷流體傳遞的裝置被稱為換熱器。在混合式換熱器中全部流體均勻地處于同溫同壓下離開換熱器 。廣義地說，散熱器的性能含義很廣，有阻力性能、傳熱性能、經(jīng)濟性、機械性能等。通常，汽車散熱器由主片、芯體、封條等零件通過釬焊工藝焊接而成，它的結(jié)構(gòu)緊湊、輕巧、薄壁及傳熱強度高。由波紋狀散熱帶和冷卻管相間排列經(jīng)焊接而成所組成的散熱器為管帶式散熱器。s main water pipe holes are arranged to be in full pliance with heatsink arrangement and number of pipes , radiators Sheung Shui chamber generally high 60 ~ 100mm, the volume should be related to the total volume of water would adapt to , and slightly larger than the total capacity of water , but also consider the capacity of the engine water jacket and the inlet pipe size , while also easy to install other accessories such as inlet pipe, plus intakes, internal partitions, etc. . 左右側(cè)板及裝機架 散熱器的固定框架是將散熱器固定在汽車上必須的部件，包括左右側(cè)板，Ｕ型件，三角吊耳等。散熱器的進出水管通常是焊接在水室上的。 Cooling water In most cases, the radiator inlet and outlet pipe is caused by the Health and castiron rivets, reinforcing plate and brazing fixed on the water chamber , in order to increase the strength of the structure in many radiator , plumbing i