The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 20, 2023
Filed:
Sep. 28, 2020
Manchao He, Beijing, CN;
Min Xia, Beijing, CN;
Manchao He, Beijing, CN;
Min Xia, Beijing, CN;
Hongyan Guo, Beijing, CN;
Hongchao Li, Hebei Province, CN;
JING-JIN ELECTRIC TECHNOLOGIES CO., LTD., Beijing, CN;
Other;
Abstract
A processing method of NPR steel rebar coil is disclosed. The NPR steel rebar is cold processed and has a diameter of less than 14 mm, and has a yield strength of 800˜950 MPa, a tensile strength of 900˜1100 MPa, and a elongation of not less than 20%. The processing method comprises: an I-shaped placing step L, an uncoiling step L, a flattening step L, a pointing step L, a butt welding step L, a hydraulic head-pushing step L, a cold drawn smoothing step L, a grit blasting step L, an in-situ inline annealing step L, an air-cooled tempering step L, a coiling step L, a placing step L, a flattening step L, a cold drawn spiral ribbing step L, a straightening step L, and a coiling step L. The method can achieve full intelligence, meet the processing requirements and the automatic intelligent production requirements of NPR steel rebar coil.