The surface of the mechanical seal gasket is affected by compressive stress and friction-

The surface of mechanical seal gasket is affected by compressive stress and friction

　2017-06-20　　

The surface of mechanical seal gasket is affected by compressive stress and friction:

105 105B mechanical seal when the gasket is compressed, due to the sliding in the width direction, the gasket surface is affected by the compressive stress and friction, and assumes a three-way force state. The middle layer of the gasket is less affected by the surface layer, which makes the difference between the resistance of the surface layer and the middle layer, and this difference is proportional to the thickness of the gasket, which has an adverse effect on the establishment of the initial seal. Therefore, when the thickness of the gasket reaches a certain value, the sealing performance If there is no improvement, it may deteriorate. If the gasket is too thick, it is easy to cause uneven distribution of the sealing surface compression force, the gasket is locally crushed or extruded, and the gasket itself is prone to penetration and leakage, so the thickness must be controlled. Generally, the sealing diameter of the equipment is below 500mm, and the thickness of the gasket is 1.5-3mm; the sealing diameter is greater than 500mm, and the thickness of the plastic sheet is t>3mm.　　484.html,

Mechanical seal gasket thickness effect 　　 standard size series of mechanical seal gasket