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cutters
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  刀具
     Study on Performance of Al_2O_3-TiB_2-ZrO_2 Compound Ceramic Cutters
     Al_2O_3-TiB_2-ZrO_2三元复合陶瓷刀具的性能研究
短句来源
     Study on Friction Welding of 45 Steel/W8Co3N HSS Cutters
     45钢/W8Co3N高速钢刀具的摩擦焊接研究
短句来源
     SiC Whiskers and Ti(C,N) Particles Synergistically Toughened Al_2O_3 Matrix Ceramic Composites for Cutters
     SiC晶须和Ti(C,N)颗粒协同增韧Al_2O_3陶瓷刀具的研究
短句来源
     Design and Simulation of Cutters for Gear Camber Chamfering
     齿轮齿端曲面倒角加工刀具设计与仿真
短句来源
     Solid Edge-based Accurate Design and Manufacture of edge shape of Cutters Used to Machine Sprocket Wheel Hobs
     基于Solid Edge的链轮滚刀加工刀具刃形的精确设计与加工
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  “cutters”译为未确定词的双语例句
     By changing technological parameters of heat treatment, the variation of internal hole diameters of gear shaving cutters made of W9Mo3Cr4V and W6Mo5Cr4V2 is investigated.
     按不同工艺参数对W9Mo3Cr4V和W6Mo5Cr4V2材料剃齿刀进行热处理后,观察孔径变化规律。
短句来源
     The content of the neutral aroma components in the upper leaves(B2F) was the highest,followed by cutters(C3F)and the lugs(X2F).
     两地烟叶部位间上部叶(B2F)中性致香物质含量最高,中部叶(C3F)次之,下部叶(X2F)最低。
短句来源
     Application of G90 and G91 in Automatic Program of Transposition over Cutters
     G90和G91在自动编程换刀中的应用
短句来源
     Experimental Investigation on Cutting Performances of Carbide Face Milling Cutters During Cutting 0Cr13Ni5Mo
     硬质合金面铣刀铣削0Cr13Ni5Mo不锈钢切削性能的试验研究
短句来源
     (3) For different treatment at ripe stage,variation coefficients of starch content were big (9. 5%-12. 6%) for lower leaf,medium (5. 4%-8. 3%) for upper leaf,and low (3. 6%-4. 0%) for cutters.
     (3)成熟采收期下部烟叶淀粉含量在处理间的变异系数较大(9.5%- 12.6%),上部烟叶淀粉含量的变异系数次之(5.4%-8.3%),中部烟叶的变异系数较小(3.6%-4.0%)。
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  相似匹配句对
     Design of Cutters for Dredgers
     挖泥船绞刀设计
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     Innovative meat cutters
     突破肉类绞碎范畴的崭新技术
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  cutters
Failure analysis of polycrystalline diamond compact cutters for breaking rock by bending waves theory
      
The breakage mechanism of the polycrystalline diamond compact(PDC) cutters was analyzed by the energy theory of bending waves.
      
Thus during the process of cutting, the eccentric distance should be reduced to improve the service life of PDC cutters.
      
The synthesis of cylindrical worm gears is considered, in the case where the generating worm consists of standard worm cutters for cylindrical gears.
      
Estimating the load on the cutting edges of the teeth in gear cutters
      
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When we design or manufacture a cam more accurately, the ana-lytical method of calculation is desired. For example, by fabricationa cam the coordinate of pitch curve or centure of cutter must be de-termined; by calculation for strength and wear, the radius of curvatureof the pith curv sould be investigated. This problem has been solvedby different method, wich may be found in some literares. In thispaper the author suggest a way to establisb the systematic fotmulaswith parameters α and β. (α is pressure...

When we design or manufacture a cam more accurately, the ana-lytical method of calculation is desired. For example, by fabricationa cam the coordinate of pitch curve or centure of cutter must be de-termined; by calculation for strength and wear, the radius of curvatureof the pith curv sould be investigated. This problem has been solvedby different method, wich may be found in some literares. In thispaper the author suggest a way to establisb the systematic fotmulaswith parameters α and β. (α is pressure angle, and β is the anglebetween radius R and normal to pith curve). For conveience to calcu-lation, several nomograms are discussed. The construction procedureof a cam is as follows: (a) Select the type of follower motion. (b)According to maximal pressure angle and nomogram 4 or 5 determinethe minimum cam size.(c) Calculate the coordinates of pitch curve byformulas(1)(2)(3)or (8)(9). If the size of roller is different from thecutter, the calculation must be continued with the formulas (6′)(7′).(d) If considering with Strength、wear or radius of roller the, radiusof curvature of the pitch curve must be calculated with formula(13).Because the method of deriving formula of the cam for oscillatingfollower or translating follower is same. so the formula for oscillatingfollower is described in detaill only.

在精确制造或设计凸轮时,都要求用分析法。例如加工时需要知道凸轮轮廓坐标或刀具的中心坐标;强度计算或磨损计算时需要知道凸轮轮廓的曲率半径等。解决这个问题有些文献已经提出一些不同的方法。这里所提出的就是以凸轮压力角α和升角β为参数,推导系统设计公式的方法。为了计算方便还讨论了几根计算图线的设计问题。凸轮的设计步骤如下:(a)选定从动件的运动规律。(b)按最大压力角和图线(4)或(5)决定凸轮最小尺寸。(c)用公式(1)(2)(3)或(8)(9)计算凸轮理论轮廓坐标。如果滚子尺寸和刀具尺寸不同,还需用公式(6′)和(7′)继续计算。(d)如果需要考虑强度磨损或滚子半径用公式(13)计算凸轮轮廓的曲率半径。因为摆动从动件和移动从动件的凸轮在公式推导的方法上是一样的,所以仅对摆动从动件的凸轮公式推导作了详细的叙述。

This paper describes the dredging practice in excavating navigation channel and foundation trench for marine work with cutter suction dredger.From the dredging practice with dredger "Nanhai" for a period of more then 10 years, it may be said that the planning of excavation, the control of the depth, the width of the cut and the advancing distance of the dredger are the principal items of quality control for the excavation. The planning of excavation is founded on working scheme.With the working conditions...

This paper describes the dredging practice in excavating navigation channel and foundation trench for marine work with cutter suction dredger.From the dredging practice with dredger "Nanhai" for a period of more then 10 years, it may be said that the planning of excavation, the control of the depth, the width of the cut and the advancing distance of the dredger are the principal items of quality control for the excavation. The planning of excavation is founded on working scheme.With the working conditions and the characteristics of dredger being taken into consideration, the cut layer and the cut width of the channel should be decided in accordance with the profile of the cross-section designed by step excavation.Generally, in the upper half of the section the thickness of cut in each layer is about 2m, while the lower half about 1m.Besides, in the design a temporary side slope must be taken into consideration.In addition, method of dredging at river bend is given in the report too. For depth control, the center of suction head is assumed to be the zero datum of the indicating gauge, which is mounted on the ladder hoist.The dredging master can take the gauge reading directly so as to enable him to adjust the suction head to the required depth, and then checks the depth by trial dredging. The width of cut is controlled by observation marks set along the left and right side of the centerline of the cut channel.The distance between right and left marks is calculated from the width of the cut and the related dimensions of the dredger.When the suction head moves up to the margin of the cut and the master working stand is keeping in line with the left or the right mark, it means that the desired width is obtained.Dredging at shallow waters, auxiliary marks may be set on the edge of cut.Advancing movement of the dredger can be controlled by a horizontal scale mounted at the "A" frame.The horizontal scale is marked with corresponding values of the advancing distances of dredger.When the dredger swings to the point where the master's stand, the advancing distance marked on scale and the centerline of the cut keep on a line, the left or the right spud can be immediately lowered down.Thereby, the dredger moves forward to the desired position. Finally, the dredging operation can be summed up as: "Start the cut at center, then cut layer by layer, and finish with a thinner layer".Meanwhile, the dredging master should pay great attention to the variations of water level, thickness of dredged soil and dredger advancing distance, and then control the dredger movements accordingly with the winches.Thus, a better quality and a higher output of dredging could be obtained.

本文着重介绍“南海号”挖泥船十三年来开挖水工建筑物基槽的施工经验.实践证明,控制挖槽质量的关键,主要在于作好挖槽施工展布,深度、宽度、前移距控制和施工操作等方面的工作. 挖槽施工展布主要在作好挖槽施工设计.深度控制是以吸嘴中心为水尺零点,在绞刀吊架上安装水尺,由驾驶员直接观测,以确定绞刀下放深度,并通过试挖验测予以校正。宽度是利用视线标志来进行控制;在较浅的河道施工时也可采用插边线竿的办法.前移距是利用“横尺”方法来控制. 在施工操作方面,总结出“中间切入,分层开挖,最后一层薄”的操作方法.同吋,还提出了驾驶人员必须掌握水位涨落的变化、泥面厚度的变化、前移距大小的变化以及灵活換边和灵活掌握绞车等四个操作规律,以便更好的控制工程质量和有效地提高挖泥效率。

This article describes the method of contour-design and the machining of the ball-returning channel of a ball-returning device. By mathematical calculation and using a copying fixture, the orbit of movement of an end-milling form cutter is obtained. This simple but accurate method is useful in machining a ball-lead-screw, especially when no dimensional numerical-control milling machine is available.

本文主要阐明回珠器的回珠槽的成形设计和加工方法。通过数学计算与使用靠模夹具,求得铣削回珠器回珠槽指状铣刀的运动轨迹。这种方法比较简单可靠,尤其是对于缺少三座标数控铣床设备的工厂,制作滚珠絲杠付加工回珠槽时,可供参考。

 
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