徑向冷卻 的英文怎麼說
中文拼音 [jìngxiànglěngquè]
徑向冷卻
英文
radialcooling-
By analyzing and experimentally verifying the model, new ways of improving mixer performance were put forward. ( 1 ) heat water should be used in the mixer ' s temperature control to make the mixer work with optimal parameters. ( 2 ) the surface materials of the mixing chamber and rotors should be chosen rationally to change material surface energy and increase friction on them. ( 3 ) when the compound was processed under higher pressure of floating weight, shallow groovers or stripes parallel to the axle of the rotor should be made on the mixing chamber internal wall to increase the real contact area and improve mixing effect
通過對模型的分析和實驗驗證，提出了提高密煉機混煉效果的新途徑： （ 1 ）密煉機溫度控制採用溫水冷卻，使密煉機處于最佳工作狀態； （ 2 ）通過合理選擇密煉室和轉子表面材料以改變材料表面能來增大膠料與它們之間的摩擦力； （ 3 ）在上頂栓壓力較大的條件下，在密煉室內壁與轉子軸線同方向加工淺的光滑槽可明顯改善混煉效果。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing
對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。This dissertation describes in detail about the operation principle of cooling system, the hardware circuit design and software design of the single chip control system. being different to the structure collation method of traditional cooling system, this system divided the whole system into two parts : cooling system for engine and cooling system for hydraulic oil system, and both of them are controlled by one singlechip
這種電液混合驅動冷卻方式可以使風扇離開發動機而靈活布置，克服了傳統驅動方式的各種弊端，減小了風扇的徑向間隙，提高了容積效率，降低了能耗，並有效解決了發動機和液壓傳動系統的過熱問題。論文對該系統的工作原理、硬體組成、軟體設計作了詳細論述。The ratio of the length and the radius of bolt boles is 6 1 in 2v 6 / 8 air compressor and the holes belong to little and deep ones, there are many problems, such as the guiding, chip explusion and cooling, during the manufacturing
某廠生產的2v 6 / 8型空壓機連桿螺栓孔長徑比為6 1 ，屬小深孔，加工時存在著導向、排屑、冷卻及潤滑等問題。分享友人