| 摘要 |
The present application discloses an electromagnetic gas valve for controlling the flow of a gas. The electromagnetic gas valve is provided with a valve body, which changes position between a closed position that closes a flow path and an open position that opens said flow path inside a main body. The main body comprises a holding part for holding a coil that generates a magnetic field, and a valve seat on which the valve body is seated. The valve body comprises an armature surface that changes position according to the magnetic field, and a valve section that is integrally formed with the armature surface. The armature surface faces the holding part and comprises facing surfaces that, by coming in contact with the holding part when the valve body is in the open position, establish the amount of displacement of the armature surface from a closed position in which the valve section is in contact with the valve seat to an open position in which the valve section separates from the valve seat. In the contact regions in which the facing surfaces and the holding part come in contact with each other, at least one of the surfaces of the facing surfaces and the holding part is roughened. |
