公开(公告)号：US11753695B2

公开(公告)日：2023-09-12

申请号：US17360409

申请日：2021-06-28

Applicant: Northwestern Polytechnical University

Inventor： Taiwen Huang ,  Lin Liu ,  Min Guo ,  Haijun Su ,  Jun Zhang ,  Wenchao Yang ,  Zheliang Liu ,  Yinuo Guo ,  Huating Chang ,  Hui Shen ,  Shaoying Li

IPC: C21D11/00 ,  C21D1/773 ,  C21D9/00 ,  C21D9/52

CPC classification number: C21D11/00 ,  C21D1/773 ,  C21D9/0075 ,  C21D9/525

Abstract: A device and a method for continuous temperature gradient heat treatment of a rod-shaped material are disclosed. The furnace body of the device includes an upper heating zone and a lower heating zone inside, which are independently controlled in temperature by means of an upper heating power supply and a lower heating power supply. Moreover, both the upper heating zone and the lower heating zone are closed heating zones. The closed heat insulation plates could prevent heat loss and ensure precise temperature control of the upper heating zone and the lower heating zone. In the device, a vacuum pumping equipment is included; an annular radiation screen is configured between the upper heating zone and the lower heating zone, and the rod-shaped material is not in contact with the annular radiation screen The rod-shaped material conducts one-dimensional heat transfer along the axial direction.