sealing end

The novel points of the article contain three aspects in the following: ( 1) With thiol sealing end polysulfide, poly tetrahydrofuran ether ( PTMG), diphenyl methane diisocyanate ( MDI) as raw materials, to prepare polysulfide-based polyurethane composite material.

本研究的新颖点主要包含以下三方面：（1）以巯基封端聚硫橡胶（PS）、聚四氢呋喃醚（PTMG）、二苯基甲烷二异氰酸酯（MDI）为原料，合成聚硫聚氨酯复合材料。

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Objective To study the sealing ability of Gallium Alloy as a root end filling material.

目的研究根尖倒封闭材料镓合金的密封性能.

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The water filling and pressure maintaining system mainly included: pressure pump and its control device, blockage end at the spiral case inlet, sealing ring on the stay ring of turbine, etc.

蜗壳内充水保压系统，主要包括加压水泵及其控制装置、蜗壳进口闷头、座环密封环等组成。

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The forming process of the large _ section oblong rear sealing end tank was introduced.

介绍了大截面圆矩形后封头的成形工艺.

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Relying on its excellent strength and stiffness, circular-shaped cover with a topsy-turvy cone is especially suitable for the end sealing of detachable spiral heat exchanger.

倒锥平盖凭借其良好的强度、刚度特性，尤其适于可拆式螺旋板换热器的端部密封。

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The construction of a church so that its longitudinal axis is from west to east and its main altar is at the eastern end. The bottom bearing applies both labyrinth seal and frame seal, which have good performance of sealing. The main shaft is anticorrosive.

圣坛位于东端一种纬轴由西向东、主圣坛在最东端的教堂建筑结构下轴承端盖密封采用双重密封，可确保密封效果，主轴采用防腐新技术，能保护主轴免受腐蚀。

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PLC control, Unified, functional and tidy appearance of the end closure, sealing high fastness.

PLC程序操纵, 通用性强, 功效齐全,封尾外观井然, 封合牢度高.

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Sealing rings are respectively arranged among the end caps, the outer gear shaft sleeves and the inner gear ring.

所述端盖与外齿轴套、内齿圈之间分别设置有密封圈。

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By means of analysis on failure reason for bearing sealing, the oil membrane spiral slot end sealing was adopted and remarkable effectiveness was achieved.

通过对轴封失效原因的分析，采取油膜螺旋槽端面密封措施，取得了显著成效。

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The Thermo-hydrodynamic ( THD) effect in non-contact mechanical seals includes the thermal wedge caused by the frictional heat of the fluid film and the hydrodynamic wedge of the shallow grooves fabricated on the end face of the rotating sealing ring.

非接触式机械密封中的热流体动力效应包括密封环端面受热变形后引起的热楔效应和端面上动压槽引起的动力楔效应。

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