公开(公告)号：US10267425B2

公开(公告)日：2019-04-23

申请号：US15142591

申请日：2016-04-29

Applicant: CKD CORPORATION

Inventor： Masaki Yoshida ,  Michio Miyashita ,  Shoji Azuma ,  Takayuki Kumagai

IPC: F16K7/17 ,  B29C45/14 ,  F16K25/00 ,  B29K627/18 ,  B29K71/00 ,  B29K105/20 ,  B29K671/00 ,  B29L31/00

Abstract: A diaphragm having chemical resistance is disclosed. The diaphragm includes a membrane portion and a connection portion which enables connection of the membrane portion to another member. The membrane portion is formed of a first material having chemical resistance. The connection portion is formed of a second material whose main material is the same as that of the first material. The membrane portion and the connection portion are directly bonded together.