Mechanical seal device, sliding element, and method of production thereof
AssigneeEagle Industry Co., Ltd.
InventorMasami Miyazawa
Life of this patent
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Abstract
A sliding element having a sliding surface, wherein a substrate forming the sliding surface is formed with a resin layer, the resin layer has a plurality of porous parts on its surface, and the porous parts are impregnated with a fluorinated oil. Preferably, the resin layer contains a first resin and a second resin having a melting point higher than that of the first resin, and the porous parts of the resin layer are formed by heating the resin layer at a temperature of at least the melting point of the first resin and less than the melting point of the second resin, and exposed at the surface of the resin layer by grinding the resin layer.
Claims11
A sliding element having a sliding surface, wherein a substrate forming said sliding surface is provided with a resin layer, said resin layer has a plurality of porous parts at its surface, and said porous parts contain a fluorinated oil.
A method of production of a sliding element comprising the steps of:
- forming a resin layer containing a first resin and a second resin having a melting point higher than that of said first resin, at a portion to form a sliding surface of a substrate,
- heating said resin layer at a temperature of at least the melting point of said first resin and less than the melting paint of said second resin, causing said first resin to melt, and forming a plurality of porous parts in said resin layer,
- grinding a surface of said resin layer to cause at least part of a plurality of said porous parts to be exposed at the surface, and
- impregnating said exposed porous parts with a fluorinated oil.
Dependencies are inferred from the claim text.