副密封

低温密封副密封比压的确定

Determination of Specific pressure for Sealing Liquid in Low Temperature

乳化液泵柱塞副密封及密封材料研究

A Study on Dynamic Seal and Sealing Material of Emulsion Piston Pump

诸因素对本体硬面密封副密封性的影响

Effects of Various Factors on the Sealability of Sealing Pairs with Hard Surfaces

煤矿乳化液泵柱塞副密封问题长期以来未得到很好解决，严重影响和制约煤矿企业的正常生产和安全生产。

The seal problems of emulsion pump in coal-mine has restrained and puzzled coal production continuously and safely for a long time with no perfect sealing components .

分析了单波齿螺杆副密封腔体的形成及移动，推导出转子运动的位移和速度方程。

In the present paper the airtight chambers formation and movement for a single-lobe screw pair are analysed and equations of displacement and velocity for the rotor running in the stator have beer derived .

围绕陶瓷石墨摩擦副机械密封CAD软件的开发，对基于Pro/Engineer的三维参数化建模方法及其技术进行了研究。

The CAD system of mechanic seal of ceramic-graphite friction-pair was developed , the three-dimensional parametric modeling method and its technology based on Pro / Engineer was studied , the basic method and general steps of 3-D parametric modeling were expounded in detail .

副叶轮密封的设计计算

Calculation for Seal of the Auxiliary Impeller in Design

副叶轮密封在气体压缩机上的应用

The application of the Auxiliary Vane Wheel Sealing

反压系数的确定是设计副叶轮密封的关键。

The key to design an auxiliary impeller seal is to determine the opposite pressure coefficient K.

钻井使用的各种砂泵，其轴封无论是填料密封、机械密封还是副叶轮密封，轴封寿命最长几个月，最短只有几个小时，因此砂系的维修工作量和维修费用都很大。

The life of the shall gland of a sand pump is short and both the amount of work and expense for maintenance is high .

简单介绍了对气体压缩机上的轴封改造后的副叶轮密封装置的结构及设计计算。

The structure and designing calculation of auxiliary vane wheel after the modification of the shaft seal for the gas compressor have been briefly described .

从金属密封副的密封机理出发，对密封的必要条件进行了分析，设计出了大流量的阀座组件。

Based on the sealing mechanism of the metallic sealing pair , the necessary conditions of sealing were analyzed and the large flow valve components were designed .

针对高水基流体动力系统的特殊性，探讨了在高水基流体动力系统往复运动副动密封中新的润滑手段与密封理论，并应用流变复合密封材料使这一问题得到成功地解决。

New lubricating ways and sealing theroy of high water based fluid in hydraulic transmission systems are also studied and proved by the use of composite rheological sealing material .

摩擦副的密封面设计有宽度，液体在泄漏方向上有压力差，温度升高，造成液膜汽化，密封面间出现汽液混相或全汽相，膜压增大推开密封面。

When there exists width in seal face of friction pairs there will exist pressure drop in the liquid leaking direction . When the temperature rises liquid film will be gasified . The gas-liquid phase or pure gas will exist between the seal faces .

多节柱塞一油管副间的密封能力由特殊结构的柱塞密封元件&封隔器保证。

Special packers are used for sealing between the multi-plunger and tubing string .

连续生产苯酐中不停车加催化剂栲胶泵轴密封的研究&副叶轮动力密封和飞球离心式机械停车密封装置

Intermittent Addition of Catalyst in Continuous Production of Phthalic Anhydride STUDY ON THE AXLE SEALING OF PUMP USED IN TANNIN EXTRACTS INDUSTRY

分析结果表明，所选用的配对密封副材料在密封效果和寿命上均满足设计要求。

The results indicate that the method presented in this paper is effective and has many applicable values to life test for moon robot sealing material .

文章比较了砂泵常用的填料密封、机械密封、副叶轮动力密封和组合密封的优缺点，提出了一种改进的砂泵密封装置。

The comparison between feature and short points of packing sealing , mechanical sealing , auxiliary impeller sealing and the combination sealing is done and an improvement of sealing device is proposed for sand pump .

高速滚珠丝杠副开口弹性密封圈，涉及有开口、密封圈体、凹槽和弹簧组成。

The utility model relates to an elastic airproof ring with high speed ball bearing leading screw pair opening , which is composed of an opening , an airproof ring body , a groove and a spring .

高温密封副不同工况下密封力的探讨

Inquiring into the Sealing Force of High Temperature Sealing Pair at Various Working Conditions

相关标准对金属密封副止回阀密封试验泄漏率的规定及分析

Measure and analysis about the leakage rate in sealing test for metal-seated check valve covered in GB standard

该蝶阀密封副采用金属弹性密封结构，设计独特，使密封副具有双向密封的特性。

The sealing ring of this butterfly valve are metal elastic sealing construction which make the valve with bilateral direction sealing .

本文分析了支架阀的密封副的发展过程，论述了密封副的材料与密封性能之间的关系。指出了密封技术是提高液压支架中液压阀使用寿命的关键。

This paper has analyzed the developing process of the powered support 's valve and the relationship between sealing material and sealing property , and also pointed out that sealing technology is the key process to improve the working life .