Double-triangle polytetrafluoroethylene sealing O ring

Abstract

The invention provides a double-triangle polytetrafluoroethylene sealing O ring, the cross section of the polytetrafluoroethylene sealing O ring is a quadrangle formed by two isosceles triangles witha common bottom edge, the polytetrafluoroethylene material serving as the sealing O ring has the defect that the material is hard, due to the fact that the texture of a quartz window is brittle, if face sealing is used like a silica gel O ring, needed pressure is quite large, the quartz window can be easily crushed by the force, while two contact ends of the O ring are machined into triangles, thesurface contact is changed into the line contact, the pressure intensity is greatly increased under the same pressure, the window can be sealed without need of large force, and the problem that the window is crushed due to too large pressure is solved.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to a double triangular polytetrafluoroethylene sealing O-ring which solves the window sealing technology of an immersion liquid-cooled solid-state laser. Background technique [0002] The immersion liquid-cooled solid-state laser is a new type of laser developed in recent years. Its main feature is that the heat generated by the pump is taken away by the fast-flowing cooling liquid, so the gain pool must be strictly sealed, and the sealing of the window has always been It is the key point of sealing. [0003] The immersion liquid-cooled solid-state laser requires a quartz window as the inlet and outlet of the pump light and laser. The quartz window and the gain cell of the laser are generally sealed with a silicone gasket or a sealing ring, so as to ensure that the cooling liquid flows quickly in the gain cell without Do not leak. Due to the poor stability of the silico...

AI Technical Summary

Problems solved by technology

One disadvantage of using polytetrafluoroethylene as a sealing O-ring is that the material is relatively hard and it is difficult to achieve absolute sealing. Moreover, because the texture of the quartz window is relatively brittle, if it is used as a surface seal like a silicone O-ring, it requires a lot of pressure. The force easily crushes the quartz window

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