The finite model of injection molded parts with microstructure region considering latent heat can approximatively forecast the cavity temperature.
采用考虑结晶潜热的微结构件注射成型有限元模型能较准确地预测制品内部温度场分布。
A tunable diode laser was used to probe the gain spectra and profile of a supersonic COIL. The cavity temperature was obtained based on Doppler broadening.
利用可调谐二极管激光器做探测光源,测量了超音速氧碘化学激光的增益谱线和增益线型。根据多普勒展宽,间接得到了超音速氧碘激光器的腔内温度。
An example was demonstrated to illustrate the correctness and effectiveness of the numerical method as well as to analyze the factors influencing mold cavity temperature.
最后通过实例分析了影响型腔温度的各种因素,也验证了文中算法的正确性与有效性。
After the hot pumping reaction, the green chemiluminescence always appears in the downstream region of the optical axis when the optical cavity temperature varies in a greater range.
发生热泵浦反应后,光腔温度在较大的一个范围内变化时,光轴下游均会出现较强的绿色荧光。
The external cavity quantum cascade laser with this design may operate very stable due to its low dependences on voltage and temperature, he says.
“应用这种设计的外腔式量子级联激光器能够非常稳定地运行,这得益于对电压和温度的弱依赖关系,”他说。
"The external cavity quantum cascade laser with this design may operate very stable due to its low dependences on voltage and temperature," he says.
“应用这种设计的外腔式量子级联激光器能够非常稳定地运行,这得益于对电压和温度的弱依赖关系,”他说。
The cavity pull effect, microwave power shift, light shift and temperature coefficient which mostly influence the performance of RAFS are studied.
研究了腔牵引效应、微波功率频移、光频移和缓冲气体温度系数对铷频标输出频率的影响。
In experiment, microwave oven is used to simulate microwave sintering cavity, then temperature data are gained and model is established.
并通过试验,用微波炉模拟微波烧结腔体测得温度数据,建立模型。
Influence of temperature effect on Fabry-Perot cavity optical fiber sensor system is analyzed and the projects of self-compensation for temperature effect are put forward.
分析了温度效应对f - P腔光纤液位传感器系统的影响,提出相应的解决方案以实现对温度效应的自补偿。
The problems of laser diode life test are introduced, and the integrating cavity scanning (ICS) method is given in laser diodes (LD) high-temperature accelerating life test.
介绍了半导体激光二极管(LD)寿命测试中存在的问题,并据此给出了LD高温加速寿命测试的积分球扫描法。
After frequency selecting when white light walks through the F-P sensor which cavity modulated by temperature, wavelength demodulating is realized with a plane grating and CCD.
采用铜管和端面镀膜的光纤制作f - P传感器,白光光源经过腔长受温度调制的F - P传感器选频后,用平面光栅和线阵CCD实现光波波长的解调。
By test the parameters of temperature and pressure, we could analyze the formation of steam cavity in the steam driven blocks, steam cavity distribution in space and time.
通过测试的温度压力数据可以分析蒸汽驱块的蒸汽腔的形成,蒸汽腔空间和时间分布。
Analysis of numerical simulation is used on flow field and temperature field in mechanical seal cavity.
对机械密封腔内流场和温度场进行了数值模拟。
To introduce the working principle, functions and calibration of continuous temperature measuring device with black body cavity.
介绍了黑体空腔连续测温装置的工作原理、功能、设备的校验和使用过程中出现的问题及改进情况。
The temperature-time curve of the heated die cavity and the relation between temperature and time under different initiatory temperature were determined.
测定模膛加热的温度-时间曲线及不同起始温度下模膛温度与时间的关系。
Measurements can be made with an infrared radiometer. Blackbody radiation at the same temperature of the object is obtained using a cylindrical direct reflection cavity.
测量中使用了红外辐射计,并用圆柱形镜反射腔获得温度同地物相同的黑体辐射,并由已知比辐射率的参考板标定环境辐射。
When the outdoor temperature rises, the water content in the mud material in the inner cavity of the cooling ceramic tile evaporates so as to lower the room temperature.
当室外温度升高时,降温磁砖内腔中的泥浆料中的水分开始蒸发,从而使室温也随之下降。
Multiple die with hydraulic compensating device adopts the design of multi-dies gathering in a common grease cavity, using high temperature lubricating grease as the pressure compensating medium.
多冲模液压补偿装置采用多个冲模集于同一油脂腔中并用高温润滑油脂作压力补偿介质。
The dependence of the performance of fiber lasers on the operation temperature and cavity configuration parameters is also investigated.
此外,我们还观察分析了工作温度和其他腔结构参量对该激光器工作性能的影响。;
The influence of chemical composition, inoculation process, temperature of molten iron and pouring system on the formation of shrinkage cavity and porosity was described.
叙述化学成分、孕育工艺、铁液温度及浇注系统等因素对薄壁球铁铸件缩孔和缩松形成的影响。
The influence of the change of airflow temperature in the entrance on the temperature distribution in the nasal cavity was also discussed.
并探讨了入口气流温度变化对鼻腔内气流温度分布的影响。
For PET resin, the processing temperature window of which is relatively narrow, hot runner plate could be used in the multi-cavity hot runner injection molding.
对于注射成型加工温度范围较窄的PET塑料,可利用热流道板实现一模多腔热流道注射成型。
On the basis of 3-D temperature fields calculation of aluminum alloy casting, the liquid face shrinkage capacity method of varied several melt pool is put forward to predicate shrinkage cavity;
在铝合金铸件三维温度场计算的基础上,提出了采用动态多熔池等效液面收缩量法对缩孔进行预测;
A device for drop-freezing experiment was improved, which consists of the cold-cavity, thermometer, controller of temperature, recorder of signals, cold sink, and environment box.
介绍一个改进的水滴冻结实验装置,它由冷腔、冷腔温度控制、水滴冻结信号检测及记录、循环散热和冷环境箱等几部分构成。
Plastics shrinkage causes the deformation of injection molded parts. The pressure gradient, temperature gradient and shear stress in the cavity make nonuniform shrinkage.
注塑件变形始于塑料的收缩,型腔中压力梯度、温度梯度以及剪切应力的客观存在导致了注塑件各部位收缩的不均一。
Special design of basket die head of for HDPE(PP, ABS) large diameter pipe with thick wall offer lower melting temperature, good mixing, lower pressure of cavity , and stable production.
特殊设计的HDPE(PP,ABS)篮式膜具,使溶解温度更低,拥有好的混合效果,低的机头压力,并有好的稳定产量。
As applications, two examples, which concern pouring temperature of nonferrous alloys and minimum ejecting angle recommended for die cavity, were given. The results showed that …
研究了有色金属压铸成型工艺模糊智能化设计中浇注温度和出模斜度的问题。
In addition, the transmission ratio of cavity mirror has an optimum value because of the influence of temperature on the output of the pulse string.
另外,由于温度和热容激光器脉冲串输出方式的影响,总脉冲串输出能量在腔镜透射率上也将有一个优化值。
In addition, the transmission ratio of cavity mirror has an optimum value because of the influence of temperature on the output of the pulse string.
另外,由于温度和热容激光器脉冲串输出方式的影响,总脉冲串输出能量在腔镜透射率上也将有一个优化值。
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