groove diameter 中文意思是什麼
groove diameter
解釋
溝槽直徑-
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 -
By comparing between the rectangular groove and curved groove, we find that two high stress area of rectangular groove o - ring occurs during the sealing period, and the wearing on the both inside and outside diameter surfaces ; the high stress area only happens at the part area of cone shaft, and the distribution of stress is more even than the former, and the wearing is on the inside diameter surface, the improvement of its distortions makes the service life of sealing lengthen
通過矩形槽和弧形槽的對比研究發現，矩形槽o形圈在密封過程中出現兩個高應力區，磨損發生在內徑、外徑兩個表面_匕，弧形槽o形圈的高應力區僅出現在牙爪軸鄰近的局部區域內，應力分佈較前者更為均勻，磨損進發生在內徑表面，其受力變形狀況的改善將使密封壽命進一步提高。 -
Especially, the pneumatic ? measuring technique has a special priority on measuring inner and outer diameter of some thin wall parts and soft material parts, such as inner diameter of deep hole and small hole as well as narrow groove breadth which are measured difficultly by mechanical gauges and instruments
特別是在薄壁零件和軟材料零件內外徑尺寸測量、某些機械量具和量儀難于進行的測量，如深孔內徑、小孔內徑、窄槽寬度測量等方面有其特有的優勢。 -
Major products : inner diameter 1 - 15cm, miniature bearing, heterogeneous type bearing, deep groove ball bearing, needle bearing, ramming bearing and mr bearing
主要生產：內徑1 - 15cm ，微小型、異型、深溝球軸承、滾針軸承、沖壓軸承、圓柱滾子軸承、調心滾子軸承及mr類軸承，以及定做各類非標準軸承。
分享友人