提出动压作用下密封端面开启失效机理；
The mechanism of sealing face operating failure under the action of dynamic pressure is proposed.
弹簧性能的发生变化将会直接影响机械密封端面比压。
Changes in the spring performance will directly affect the mechanical seal face pressure.
提出一种考虑螺旋槽气体密封端面径向锥度的理论模型。
A theory model considering the face radial coning of spiral groove gas face seals was given.
研究表明在部分密封端面上加工微孔可有效增大端面静压。
The parametric study demonstrates that substantial hydrostatic pressure can be produced on the seal face with partial micro-pores.
流体注入压力越高，热弹变形量越大，密封端面平衡间隙亦越大。
A higher pressure of the inlet fluid will result in the increases of thermo-elastic deformation and the balancing film thickness.
讨论了汽液两相密封和全液相密封端面开启过程的动压效应的影响；
The influences of dynamic pressure effect during the sealing face to be opening for vapor-liquid mixing phase sealing and full liquid phase sealing are discussed.
设计一种刃口型密封端面的机械密封，代替原泵轴封采用的橡胶油封。
The reason of the seal's failure was analyzed. A new mechanical seal was developed which has an edge-seal end face, and the rubber lip seal was replaced by the mechanical seal.
建立了考虑低速干气密封端面各向同性粗糙度和静环静态角偏差的理论模型。
A theory model considering the isotropy roughness and static stator angular misalignment of dry gas seal was given.
机械密封端面接触情况与密封工作状态密切相关，有必要对其进行在线检测。
There's closely relationship between the contact degree of mechanical seal faces and working state. So it's vital to monitor the contact degree online.
利用有限元法求解密封端面间气膜控制方程——雷诺方程，得到了端面膜压分布。
The equation governing the gas film between the seal faces-Reynolds equation was solved by means of the finite element method, and the film pressure distribution between the seal faces was gained.
叶轮具有防松装置，机械密封端面材质采用碳化硅-碳化硅，经久耐用、安全可靠。
Impeller with against pine device, Mechanical seal face material USES silicon carbide - silicon carbide, durable, safe and reliable.
密封端面正锥度的增加能使密封气膜刚度显著提高，但同时也使密封的泄漏量有所增加。
With the increasing of seal face's positive taper, the stiffness of gas film would obviously increase, but the leakage of seal would also increase.
密封端面正锥度的增加能使密封气膜刚度显著提高，但同时也使密封的泄漏量有所增加。
With the increasing of seal face's positive taper, the stiffness of gas film is obviously increased, but the leakage of seal is also increased.
试验研究了喷油器密封端面磨损对标准喷油器流量的影响，并从理论上进行了分析论证。
The effect of nozzle holder pressure surface wear on flow characteristics of calibrating injector assembly is investigated and analyzed theoretically.
分析中，对每种密封端面，其结构参数都是依据有关文献选取的优化或近似优化的数据。
In the analysis, the geometric parameters for each face configuration, which are taken from relevant references, are optimal or approximately optimal data.
计算结果表明，机械密封端面压力分布呈凸抛物线状，增加密封端面锥度可降低摩擦系数。
The calculation results show that the pressure distribution shape is a convex parabola and the increase of the radial taper of the seal face can decrease the friction coefficient.
在牙轮钻头中成功应用单金属浮动金属密封结构的关键在于控制密封端面之间的接触压力。
How to control the normal stress between sealing faces is a critical factor while using metal face seals for rolling cutter rock bits.
如此办法不能控制漏料，则可能是石墨垫或铜环磨损较严重(如密封端面不光滑，间隙大)。
So the means cannot control leak the material, then possibly is the graphite pad or the copper collar wears (for example seal face not to be smooth seriously, gap big).
理想瞬态分析实例表明，加载过程中密封端面产生热机效应，稳定减载过程中端面参数平稳下降。
The result of transient state analysis indicated the thermal-mechanical effect on seal face during loading, the seal surface parameter dropped steadily during unloading.
作者对机械密封端面的磨损特性进行了分析，以指导和改进机械密封的设计及对密封失效的判断。
Wears performance of mechanic face seal is analysed. Basis law for design and estimation and amelioration of mechanic seal's invalidation is provided.
对各种加工方法进行比较可知，在机械密封端面上加工微孔，激光表面处理技术是惟一有效的加工方法。
Compared with any other processing methods, laser technology is a unique way to produce micro-pores on the seal face.
采用整体接触有限单元法，考虑“O”型辅助密封圈的影响，计算了不同压力下机械密封端面变形行为。
To study the influence of O-rings secondary seals, deformation behaviors of mechanical seal faces were analyzed under different pressures with the method of integral contact analysis by FEM.
启动前应除去减速机输入轴迷宫密封端面和输出传动法兰迷宫密封外圆表面，以及呼吸器上的防锈包装及胶带。
Prior to startup, get rid of tape from labyrinth seal end of input shaft, labyrinth seal outer surface of output drive flange and respirator.
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。
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.
利用有限元素法对间隙内的雷诺方程进行求解，得到了螺旋线槽气体密封端面间隙内气体的压力分布和三维膜压分布图。
Using finite element methods solves two-dimensional compressible Reynolds equation. As a result, the pressure distribution over the entire seal interface is obtained.
结果表明：密封端面各区域表面粗糙度对密封性能的影响规律各不相同，并且转速对表面粗糙度与密封性能的关系产生影响；
The effects of surface roughness at different areas of the seal faces on the performances such as gas film stiffness and leakage rate of a S-DGS were studied.
通过分析端面结构参数对密封开启力和液膜刚度的影响规律，可得到端面结构的优化参数。
Seal face geometry parameters can be optimized by analyzing regulation of their effect on opening force and liquid film stiffness.
螺旋通道的端面是焊接密封的，密封性能好，结构可靠。
The end surface of spiral channel is sealed by welding, therefore the sealing performance is good with reliable structure.
轴封采用新颖的双端面机械密封结构形式。
轴封采用新颖的双端面机械密封结构形式。
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