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.