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公开(公告)号：US20220194015A1
公开(公告)日：2022-06-23
申请号：US17605488
申请日：2020-05-28
Applicant: CKD CORPORATION
Inventor： Hiroyuki MURASE , Atsushi TSUNEDUKA
Abstract: This manufacturing method for a fluid control apparatus, in which the flow of a fluid is controlled by bringing a diaphragm valve element into contact with or separating the same from a valve seat, is characterized in that: the diaphragm valve element is a joint body of a seat member making contact with the valve seat and a body member; the joint body is formed by cutting a material joint body obtained by depositing a seat member material which is a material for the seat member and a body member material which is a material for the body member, and the deposition is performed over a wider range than a contact surface between the seat member and the body member of the joint body, on the contact surface between the seat member material and the body member material of the material joint body.
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公开(公告)号：US20160169396A1
公开(公告)日：2016-06-16
申请号：US14956094
申请日：2015-12-01
Applicant: CKD CORPORATION
Inventor： Shinji ISHIKAWA , Michio MIYASHITA , Hiroyuki MURASE
IPC: F16K1/34
Abstract: A fluid control valve includes: a drive section; body provided with first port, second port, and valve seat; and valve element formed columnar-shaped and coupled with the drive section, and the valve element includes annular sealing protrusion annularly protruding from end face located on side facing the valve seat, the sealing protrusion being provided at leading end with annular sealing portion to be pressed against the valve seat for sealing and at least the annular sealing protrusion is made of fluororesin. The valve element is configured such that the annular sealing portion is radially displaced with displacement amount of no more than 6.175 μm when the annular sealing portion is pressed against the valve seat by the drive section so that abrasion caused by deformation of the valve element in valve closing is restrained and generation of particles is prevented.
Abstract translation: 流体控制阀包括：驱动部分; 主体设有第一端口，第二端口和阀座; 阀元件形成为圆柱状并与驱动部分结合，并且阀元件包括环形密封突起，环形密封突起从位于面向阀座的一侧的端面突出，密封突起在前端设有被压制的环形密封部分 抵靠阀座进行密封，至少环形密封突起由氟树脂制成。 阀元件构造成使得当环形密封部分被驱动部分压靠在阀座上时，环形密封部分的位移量不大于6.175μm的径向位移，使得阀元件在阀中的变形引起的磨损 阻止闭合并防止颗粒的产生。
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公开(公告)号：US20230383853A1
公开(公告)日：2023-11-30
申请号：US18142450
申请日：2023-05-02
Applicant: CKD CORPORATION
Inventor： Hiroyuki MURASE , Atsushi TSUNEDUKA , Mayuko OKADA
IPC: F16K7/17 , F16K31/122
CPC classification number: F16K7/17 , F16K31/1221 , B23K26/21
Abstract: A fluid control valve includes a diaphragm assembly including a shaft member joined to an end of a drive shaft on the side near an annular valve seat, a membrane member made of perfluoro alkoxy alkane and located in surface contact with the end face of the shaft member on the opposite side to the end joined to the drive shaft, and a weld part formed by laser welding at the interface between the shaft member and the membrane member to join the shaft member and the membrane member. The shaft member is made of fluorine resin with carbon-based additive dispersed.
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