sealing face

The paper summarizes the early failure phenomena such as mechanical seal face leakage, terminal face lopsided wearing, sealing ring disintegration and seal ring leakage and analyzes the reasons for these phenomena, which are mainly due to the design and manufacture problems.

概述了机械密封端面泄漏、端面偏磨、密封环碎裂、密封圈泄漏等常见早期失效现象，并分析了产生这些现象的原因，主要是设计制造问题造成的。

Plasma hardfacing for sealing face of high temperature and pressure steam valve

高温高压蒸汽截止阀密封面等离子弧堆焊

Laser beam repair for porosity in plasma spray fusion layer of sealing face for air outlet valve

排气门密封面等离子弧喷焊层气孔的激光补焊

S end face sealing piece on-off not leak, mechanical properties and reliable.

端面密封片启闭不泄漏，机械性能可靠。

The process of Ni alloy build-up welding to improve the valve's sealing face was introduced.

详细介绍了一种改善旋转止回阀密封面性能的镍基 堆焊 工艺.

Plasma arc surfacing for sealing face of thick oil thermal equipment

稠油热采装置密封面的等离子弧堆焊

The flat face and the side face of the plastic hollow brick are provided with a sealing groove, a sealing strip and through holes; the plastic hollow brick can be formed once by pressing.

其构成是塑料空心砖的平面、侧面设有密封槽、密封条、通孔，一次压制成型。

Single-direction metal sealing face ball valve

单向金属密封球阀一张难以琢磨的脸