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US 10,480,670 B2Granted
Valve element and fluid control valve
AssigneeHORIBA STEC, Co., Ltd.
InventorsShigeyuki Hayashi, Kazuya Shakudo
Life of this patent
Estimating the term…
Abstract
In order to provide a fluid control valve less likely to cause contamination, and a fluid control apparatus using the fluid control valve, at least any one of a valve seat member and a valve body member is one including a base body made of metal; and a resin layer that covers the surface of the base body to form a valve seat surface or a seating surface, in which the resin layer is directly chemically bonded to the base body.
Claims9
A fluid control valve comprising:
- a valve seat member formed with a valve seat surface;
- and
- a valve body member formed with a seating surface seated on the valve seat surface, and configured to control a flow of a fluid by separating or contacting the valve seat surface and the seating surface from or with each other, wherein
- at least one of the valve seat member and the valve body member comprises:
- a base body made of a metal material;
- and
- a single resin layer that covers a bottom surface of a concave portion of the base body,
- a front surface of the resin layer forms a part or a whole of the valve seat surface or the seating surface, and
- a rear surface of the resin layer is directly bonded to and forms a covalent bond with the metal material of the base body, and
- the resin layer is formed of a crosslinked modified fluorine-based resin.
7 more elements
A fluid control valve comprising:
- a valve seat member formed with a valve seat surface on a surface thereof;
- and
- a valve body member formed, on a surface thereof, with a seating surface seated on the valve seat surface, and configured to control a flow of a fluid by separating or contacting the valve seat surface and the seating surface from or with each other, wherein
- at least one of the valve seat member and the valve body member comprises:
- a base body made of a metal material;
- and
- a single resin layer that covers a bottom surface of a concave portion of the base body,
- a front surface of the resin layer forms a part or a whole of the valve seat surface or the seating surface, and
- a rear surface of the resin layer is directly bonded to and forms a covalent bond with the metal material of the base body.
6 more elements
Dependencies are inferred from the claim text.