Spiral-Groove gas seals work by maintaining a narrow clearance between the rotating and stationary rings. The finited element method is used to solve Renolds equation of the gas.
分析了螺旋槽气体密封间隙内的气体运动并建立了雷诺方程，将用有限元素法对该方程求解所得的结果与有关文献中的结论进行了比较；
This paper deals with a newly designed spiral-groove thrust bearing, with a slit seal around it. By the approximate theory of spiral-groove bearing, this new type bearing is analysed.
本文提出一种外径密封的螺旋槽推力轴承新结构，并利用螺旋槽近似理论对该轴承进行了分析计算。
At the bottom of any required length of conveyor spiral groove opening unloading material.
在输送机螺旋槽体的底部任意要求的长度开口卸出物料。
The bearing has a spiral groove in it that pumps fluid from a reservoir.
轴承有一个螺旋槽在认为泵流体从一个水库。
The influences of the spiral groove parameters on the opening force, power loss, leakage rate and stiffness of gas film were investigated by the experimental test.
螺旋槽干气密封试验分析了干气密封螺旋槽几何参数对开启力、功耗、泄漏率和气膜刚度的影响，并通过理论计算对试验数据给予了验证。
The results of calculation indicates that the static axial stiffness of fluid film in double spiral groove face seal is improved due to the pressure loss through feeding holes.
计算结果表明， 供液小孔所产生的压力损失提高了双列螺旋槽机械密封的静态轴向刚度。
A screwdriver is used to remove the spiral seat retainer ring from its groove.
采用一把螺丝刀从凹槽中拆卸螺旋阀座定位器环。
Analyzes the design characteristics of the spiral groove combined mechanical seal, and presents its operation and modification.
对螺旋槽组合式机封的设计特点进行分析，并对运行情况和改进进行介绍。
Using finite element method, the thermal and mechanical deformations of herringbone spiral groove mechanical seal are analyzed.
用有限元法分析了人字形螺旋槽机械密封的热变形和力变形。
The two dimensional fluid Reynolds equations were established using the finite element method. The pressure distribution, opening force and upstream pumping rate of spiral groove were obtained.
用有限元数值计算的方法得出了一定条件下螺旋槽上游泵送机械密封端面间液体的压力分布、开启力及上游泵送量等。
Seal chamber pressure of a new double spiral groove face seal working under high velocity and pressure conditions may probably be disturbed in operation, which affects the seal stability.
一种用于高速高压等极端工况下的新型双螺旋槽端面密封在实际运行过程中密封腔压力会出现波动，从而影响密封稳定性。
By means of finite difference methods, the numerical analysis is carried out on the static performance of hemispherical spiral groove aerodynamic bearings, and the discussion on the computed results.
运用有限差分法对圆锥形螺旋槽气体动压轴承的静特性进行了数值计算，并对计算结果进行了分析。
Different influences on the pressure fields and the loading capacity of spiral groove thrust bearings are produced by different groove molded lines.
不同螺旋槽平面型线对螺旋槽推力轴承的压力场及承载能力会产生不同程度的影响。
The mechanical structure and working principles of a kind of rolling tool for spiral groove tubes are introduced, and the geometrical parameters of normal spiral groove tubes are provided.
介绍了一种螺旋槽换热管轧制工具的机械结构及工作原理，给出了常用螺旋槽换热管的几何参数。
Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight drill pipe and to cut spiral groove on heavy weight drill pipe.
整体螺旋加重钻杆是在整体加重钻杆的中间加厚部位延长并铣削螺旋槽。
The material through an opening at the bottom of the spiral groove directly fall.
物料经过螺旋槽体底部的一个开口直接落下。
The material through an opening at the bottom of the spiral groove directly fall.
物料直接通过螺旋输送机槽体端部的开口卸出。
The dry gas seal fundamentals and the technique characteristics of herringbone spiral groove dry gas seal were introduced.
对干气密封原理和人字形螺旋槽干气密封技术特点进行了介绍。
A theory model considering the face radial coning of spiral groove gas face seals was given.
提出一种考虑螺旋槽气体密封端面径向锥度的理论模型。
With the theory of kinematics, the universal model of changed Angle and variable pitch spiral groove on any turning surface is researched.
本文应用运动学理论，研究了任意回转体外表面上的变倾角变导程螺旋线的通用模型。
The spiral groove of pipe is formed by press die.
采用冲压模具实现了管材螺旋槽成形。
Bundling threads are wound in a concave groove of the spiral groove.
捆扎线缠绕在螺旋槽的凹槽内。
Universal dhi spiral groove ore washing machine processing power is bigger, is to satisfy large productivity of minerals, stone of cleanness of the request of enterprise ideal equipments.
环球重工螺旋槽式洗矿机的处理能力较大，是满足大生产力对矿石、石料的清洁度有要求的企业的理想设备。
Leakage and liquid film rigidity increase with the speed, medium pressure increases, and spiral groove end can produce pumping effect, meanwhile, the dynamic pressure effect are obtained.
泄漏量和液膜刚度随着转速、介质压力的增加而增加，端面螺旋槽在产生泵送效应的同时也产生动压效应。
However, the sectional profile of groove and rake Angle are frequently prone to be below the mark even being rejected because of a large spiral Angle.
但若所加工的螺旋角较大，则易出现槽形和前角不符要求，乃至报废。
A new type of combined seal system with ferromagnetic flow and gas along cylindrical spiral groove is proposed in this paper.
介绍了一种新型组合密封系统———气体螺旋槽与铁磁流体组合密封型式。
There was a hole in the center of and a fine spiral groove that is a continuous spiralling line of closely written characters.
在中心有一个洞和精细的螺旋刻纹，是近乎书写状连续螺线。
The vacuum dynamic sealing of rectangle spiral groove is, one of the research topic in the would recently.
螺旋槽真空动密封是近年来国际上真空密封研究课题之一。
The replacement of common smooth tubes by new spiral groove tubes during technical reconstruction of heat exchanger is both simple and remarkable energy-saving effectiveness.
用新型螺旋槽管代替普通光管对换热器进行技术改造，既简便易行，节能效果又显著。
The replacement of common smooth tubes by new spiral groove tubes during technical reconstruction of heat exchanger is both simple and remarkable energy-saving effectiveness.
用新型螺旋槽管代替普通光管对换热器进行技术改造，既简便易行，节能效果又显著。
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