公开(公告)号：US20230392222A1

公开(公告)日：2023-12-07

申请号：US18032294

申请日：2021-10-19

Applicant: NIFCO INC.

Inventor： Shuichi HIRATSUKA ,  Norio SAITO

IPC: C21D1/18 ,  C21D1/773 ,  C21D9/52

CPC classification number: C21D1/18 ,  C21D1/773 ,  C21D9/52 ,  C21D2211/001

Abstract: A method for manufacturing a sintered mesh includes a step of preparing a mesh made of austenite stainless steel and including a plurality of wires extending respectively in intersecting directions, and a step of heat treatment for controlling an ambient temperature of the mesh. The step of heat treatment includes a temperature rising process for raising the ambient temperature to a treatment temperature, a holding process for holding the ambient temperature at the treatment temperature, and a temperature lowing process for lowing the ambient temperature. The treatment temperature is more than an austenitic temperature. The temperature lowering step includes an quenching process, where the ambient temperature is lowered under an argon gas ambient at a temperature lowering speed more than 3° C./min.

公开(公告)号：US20230081513A1

公开(公告)日：2023-03-16

申请号：US17801333

申请日：2021-02-10

Applicant: NIFCO INC.

Inventor： Norio SAITO

IPC: B29C45/14 ,  B29C45/26 ,  B01D29/11 ,  B01D29/13

Abstract: This insert-molded filter is obtained by insert-molding a cylindrically-shaped mesh into a resin body. This insert-molded filter is provided with: a body which is equipped with a first annular part, a second annular part, and multiple columnar parts connected to the first and second annular parts, and which has multiple openings formed so as to be separated by the multiple columnar parts between the first and second annular parts; and a mesh which is integrally molded with the body so as to cover the multiple openings separated by the multiple columnar parts. The body is provided with a resin introduction part that is disposed outside of the mesh in the radial direction of the first annular part.

公开(公告)号：US20230075791A1

公开(公告)日：2023-03-09

申请号：US17799742

申请日：2021-02-10

Applicant: NIFCO INC.

Inventor： Norio SAITO

IPC: B29C45/14 ,  B01D39/12

Abstract: A mesh for insert molding is formed from a single mesh sheet. The mesh for insert molding includes a side wall part that has a band shape extending along the longitudinal direction and includes two joining margins at the longitudinal end parts thereof, a bottom part positioned in the width direction of the side wall part, and a connecting part for connecting the bottom part to the side wall part. The mesh for insert molding is configured so as to be arranged in a die in a state of being molded into a cylindrical shape.