Patent ID: 9695939
Date: 2017-07-04
CPC Classifications: B29D,B29L,C23C,F15B,F16J,Y10T

Claim:
1. A method for sealing a fluid device comprising: providing a first member for defining a hollow internal area of a fluid device; providing a second member for defining the internal area together with the first member such that the second member is movable relative to the first member; providing a seal member for sealing a gap between the first member and the second member, wherein the seal member is fixed to the first member and has a sliding contact member formed of a resin and being in sliding contact with a sliding contact portion of the second member; forming a porous film in the sliding contact portion by depositing, by electric discharge between the sliding contact portion and a discharge electrode, an electrode material of the discharge electrode or a substance as a result of a reaction of the electrode material under action of the electric discharge energy on the sliding contact portion; and forming a resin layer on the porous film by sliding the second member on the sliding contact member in operation of the fluid device, thereby transferring a portion of the resin from the sliding contact member to the porous film to supply the pores of the porous film with the portion of the resin.