应用熔体流动速率仪考察了口模半径、载荷及温度对聚全氟乙丙烯(FEP)流动性能的影响。
The influences of die radius, load and temperature on the flow properties of FEP melt were investigated by using a melt flow indexer.
讨论了激光晶体的热效应以及激光模半径与泵浦光斑半径匹配对激光输出功率和输出光束质量的影响。
The influences of thermal effects and the matching of the laser mode radius with the pump spot radius on the output power and beam quality are discussed.
在工作过程中,冲头与凹模切口的半径定位,确保形成所需的圆形,而不至于在圆边产生“缺口”。
The radius of the punch and die cutting edges is laid out to produce the desired circular shape without nicking into the circle as the work proceeds.
阐述了两种不同半径圆弧凸模代替椭圆弧凸模所产生的误差,并比较其大小,从而实现凸模断面的优化设。
The errors are discussed as a result of two kinds of different radius arcs replacing elliptical arc, thereby, realize optimal design for punching cross section.
介绍两种快速测量单模光纤模场半径的方法及其测量装置——可变孔径法和移动圆孔法;
Two methods and devices which are changeable aperture and movable aperture for measuring the mode-field radius of single-mode optical fibers are presented.
对聚甲基丙烯酸甲酯(PMMA)芯聚合物光纤的临界弯曲半径进行了测试,利用光栅单色仪对采用不同尺寸滤模器的光纤出射光谱进行了测量。
The critical bending radius of PMMA polymer optical fiber is measured, By using grating monochromator, the exiting spectrums of the mode filters with different dimensions are measured.
分析了圆柱形波导气体激光器中的耦合损耗,给出了最低阶波导模EH11的耦合损耗与反射镜位置、曲率半径的函数关系。
This paper analyses the coupling wastage in columniform wave guide gas laser, and gives the function between the coupling wastage of laser guide modulo EH11 and the position and radius of reflector.
方法采用均质水等效矩形体模,在不同散射半径条件下观察靶区和正常组织界面上的剂量梯度随散射半径的变化。
Methods Using a homogeneity water equivalent rectangular phantom, the dose gradients at the interface of target volume and normal tissue was evaluated under different scatter radii.
而对于相同光束质量的基频基模光束,倍频光光束质量随着入射在倍频晶体上不同的基频光光斑半径基本不变。
The beam quality of the frequency-doubled beam is invariant when the radius of the basic beam with the same beam quality is variant in the crystal surface.
分析了挤压翻边与传统翻边应力状态的不同之处,以及翻边凸模的冲头曲率半径对翻边效果的影响。
The differences of stress state between extrusion-flanging and traditional flanging, and the influences of curvature radius of burring punch on flange height were analyzed.
形状不良随板料厚度的增加、压边力的增加、屈服强度的降低、凸模曲率半径的减小而减小。
The shape defect is decreased with increasing sheet thickness, increasing binder force, decreasing yield strength, and decreasing curvature radius.
引入回音壁模式的“模场半径”概念,由“模场半径”计算出的模式间隔和实验测量值之间符合很好。
By introducing the parameter "mode field radius" of WGMs, the mode separations calculated by mode field radius agree well with the experimental resu.
利用耦合模理论分析了在双锥光纤耦合区中声光的相互作用,讨论了在不同耦合区半径下扰动周期与声波频率的关系。
The acoustooptic interaction in biconical optical fiber was analyzed based on coupled mode theory, and the relationship between perturbation period and flexural wave frequency was discussed.
对类似厚材料小半径卷圆零件的多工位级进模设计有一定的参考价值。
There was some reference value to similar parts with big thickness and litter bending radius.
入口形状为圆弧的整形模其入口曲率半径R的选择和入口形状为锥度的整形模其入口角度的选择,以及精整中消除喇叭口的措施。
The determination of entrance angle of both R coining dies and conical coining dies and the approach to eliminating bell shapes during sizing have been outlined.
实验测量了多模光纤激光器在不同缠绕半径下的输出性能,并理论计算了各阶模式在不同缠绕半径下的损耗特性。
During the experiment, as the coil radius of multimode fiber changes, output characteristic of the laser has been measured. Meanwhile, the mode loss of different modes is calculated theoretically.
回弹角随凸模圆角半径和凸凹模间隙的增大而增大,随压边力、板料厚度、摩擦系数和材料硬化指数的增大而减小。
The springback Angle increases with the increase of the punch round radius and clearances between the punch and the die while decreases...
回弹角随凸模圆角半径和凸凹模间隙的增大而增大,随压边力、板料厚度、摩擦系数和材料硬化指数的增大而减小。
The springback Angle increases with the increase of the punch round radius and clearances between the punch and the die while decreases...
应用推荐