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fluid sealing
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  液体密封
     Study on the breakaway torque of magnetic fluid sealing at low temperature and large diameter
     低温大直径磁性液体密封起动扭矩的研究
     In this article, half-analysis methed is used to calculate the magnetic field distribution of magnetic fluid sealing region and to determine the magnetic fluid static sealing pressure-resistant capacity. The calculated pressure-resistant values are in good agreement with those obtained from the experiments. The results prove the correctness of the method and serve as a guide to the design of sealing pieces of magnetic field.
     采用半解析法计算了磁性液体密封区的磁场分布和磁性流体静密封耐压能力,理论计算出的耐压值和实验值相吻合,此结果证明磁场分布近似求法的正确性分析结果为实际磁性流体密封件的设计提供了指导.
短句来源
     In order to solve the problems that exit in the magnetic fluid sealing of reciprocating shaft, the magnetic fluid flow in the seal gap was studied when the reciprocating shaft moves with different velocities and strokes. The follwing were focused on the regular pattern of such flow, the loss quantity of magnetic fluid caused by the reciprocating motion shaft, the failure reasons of this magnetic fluid sealing and the design of a new structure for the magnetic fluid sealing of reciprocating shaft.
     为了解决往复轴磁性液体密封中存在的问题 ,研究了往复轴以不同速度和行程运动时 ,密封间隙内磁性液体的流动状态 ,重点研究了往复轴密封间隙内磁性液体流动机理、往复轴运动所带走磁性液体的量、往复轴磁性液体密封的失效原因及往复轴磁性液体密封新结构的设计 .
短句来源
  流体密封
     Size parameters optimization design for magnetic fluid sealing pole shoe
     磁性流体密封极齿尺寸的优化设计
     APPLICATION OF POLYTETRAFLUOROETHYLENE ON FLUID SEALING
     聚四氟乙烯在流体密封中的应用
短句来源
     A NEW TYPE ZERO LEAKING SEALING TECHNOLOGY-MAGNETIC FLUID SEALING
     一种新型零泄漏磁性流体密封技术
短句来源
     Experiments based on theories pertaining to elasticity, finite deformation and fluid sealing have been conducted to provide data for designing pistons and nylon rings.
     本文应用弹性理论、有限变形理论和流体密封理论对钻井泥浆泵活塞及尼龙环进行了实验研究。
短句来源
     Sealing Performance Analysis of Rubber O-ring for Fluid Sealing
     流体密封橡胶圈密封性能分析
短句来源
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  “fluid sealing”译为未确定词的双语例句
     Design of CAD System Database of Rotary Fluid Sealing Pressure Joint
     流体动密封压力接头CAD系统数据库设计
短句来源
     Finite Element Magnetic Field Analysis of the Typical Magnetic Fluid Sealing Structure
     典型磁流体密封结构磁场有限元分析
短句来源
     Magnetic field distributions of the magnetic fluid sealing devices,with the structure of three slots and four pole teeth,were simulated with the finite element software package ANSYS.
     介绍了磁性液体密封的理论,并应用ANSYS有限元分析软件对一个三槽四齿密封结构进行磁场有限元分析,并进一步对极齿尺寸进行优化设计。
短句来源
     Using the four influencing factors as the input data and the quality of electrorheological flu id sealing as the output data,a ANN model of electrorheological fluid sealing wa s established.
     以四种影响因素作为输入数据 ,电流变密封质量作为输出数据 ,建立电流变密封试验的ANN模型。
短句来源
     Discussion of several problems in design and application of magnetic fluid sealing component in vacuum film coating equipment
     真空镀膜设备用磁流体密封组件设计使用中的若干问题探讨
短句来源
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  fluid sealing
The results are given from numerical computations of the velocity and temperature fields in a magnetic-fluid sealing layer under one tooth of a cooled multistage magnetic-fluid seal.
      
The fundamentals of fluid sealing, including seal operating regimes, are discussed.
      
The European Sealing Association is a pan-European organisation, established in 1992 and representing over 80% of the fluid sealing market in Europe.
      
One of these problems involves fluid sealing in hydraulic actuators.
      
Members are involved in the production and marketing of virtually every kind of fluid sealing device available today.
      
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Experiments based on theories pertaining to elasticity, finite deformation and fluid sealing have been conducted to provide data for designing pistons and nylon rings. Radial displacement of surface of nylon ring, stress distribution in the whole piston and contact stress distribution on the surface of piston are determined by strain gage measurement, photoelastic method and pressure compensation method. Modification tests of the construction and the property of materials used for the nylon rings have...

Experiments based on theories pertaining to elasticity, finite deformation and fluid sealing have been conducted to provide data for designing pistons and nylon rings. Radial displacement of surface of nylon ring, stress distribution in the whole piston and contact stress distribution on the surface of piston are determined by strain gage measurement, photoelastic method and pressure compensation method. Modification tests of the construction and the property of materials used for the nylon rings have also been carried out. From the results of experiment, it has been proved that the home-made triangular or rectangular nylon rings offer good protection to the heel of the piston. Adequate regulation of the tolerance between the nylon ring and the cylinder may reduce the surface contacting stress of the piston, and the property of materials used for making the nylon rings may be ameliorated by heat treatment.

本文应用弹性理论、有限变形理论和流体密封理论对钻井泥浆泵活塞及尼龙环进行了实验研究。分别用电测法、光弹性法和平衡压力法测定了尼龙环表面径向位移、活塞全域应力状态和活塞表面接触应力分布。同时也对活塞尼龙环的结构和材料性能进行了改进试验。试验结果表明,国内批量生产的三角尼龙环活塞和平尼龙环活塞均具有护根作用;适当地放大尼龙环与缸套之间的间隙,严格控制尺寸公差,对减小活塞表面接触应力是有益的;对尼龙环材料(Mc尼龙)可进行热处理改性。为活塞及护根环的设计提供了依据。

On the basis of rock mechanics and elasto-plastic mechanics, this paper discusses the effect of stress relaxation zone on the outburst of coal and gas in coal tunneling. The equation of stress distribution on the interface of coal seams has been set up . The relationship of ground stress, gas pressure and strength of coal body to the stress relaxation zone in coal tunneling respectively has been discussed, and the stability condition of coal body in relaxation zone has been analyzed. The paper shows that the...

On the basis of rock mechanics and elasto-plastic mechanics, this paper discusses the effect of stress relaxation zone on the outburst of coal and gas in coal tunneling. The equation of stress distribution on the interface of coal seams has been set up . The relationship of ground stress, gas pressure and strength of coal body to the stress relaxation zone in coal tunneling respectively has been discussed, and the stability condition of coal body in relaxation zone has been analyzed. The paper shows that the gas presure in relaxation zone and its permeability can be used as the forecast index of outburst danger and the sensitive index for examining the effect of outburst precaution. The author used the foamy fluid sealing instrument to test the gas presure and its permeability in situ for forecasting the outburst danger and examining the effect of its precaution and obtained satisfactory results.

本文应用岩体力学,弹塑性力学等有关知识,探讨了煤巷卸压带对煤和瓦斯突出的作用机理,建立了煤层界面的应力分布状态方程以及煤巷卸压带和地应力,瓦斯压力,煤强度之间的关系式,并分析了煤巷卸压带中煤体稳定性的条件。研究工作表明:煤巷卸压带中的瓦斯压力,煤体透气性值可以作为突出危险性预测指标和防突措施效果检验的敏感指标。最后,利用自行设计的泡沫封孔测压仪对现场进行了突出危险性预测和防突措施效果检验,得到了十分满意的结果。

Magnetic fluid sealing techniques have been used to prevent lubricating oil from leakage was investigated. It is emphasized that r. p. m of shaft is the main factor on durability of the magnetic fluid seal, besides the properties of magnetic fluid and the intensity of magnetic field which have much to do with the sealing performance of the magnetic fluid sealing devices.

介绍了将磁流体密封技术用于密封润滑油的研究。回转轴转速除了与磁流体密封件的性能有很大关系的磁流体的性质和磁场强度之外,又着重阐述了回转轴转速是影响磁流体密封耐久性的重要因素。

 
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