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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.:

US 10357844 B1

PDFFull Text
Date of Patent:
Jul. 23, 2019

Filed:

Oct. 20, 2016

Method of monitoring of resistance welding quality of nuclear fuel rod

Applicants:

Kepco Nuclear Fuel Co., Ltd., Daejeon, KR;

Monitech Co., Ltd., Busan, KR;

Inventors:

Tae Hyung Na, Daejeon, KR;

Dong Soo Hwang, Busan, KR;

Mi Hye Ko, Yangsan-si, KR;

Kyung Woo Choi, Gimhae-si, KR;

Assignees:

KEPCO NUCLEAR FUEL CO., LTD., Daejeon, KR;

MONITECH CO., LTD., Busan, KR;

Attorney:

Rabin & Berdo, P.C.

Primary Examiner:

Jennifer E Simmons

Assistant Examiner:

Leo T Hinze

Int. Cl.
CPC ...
B23K 11/00 (2006.01); B23K 11/25 (2006.01); B23K 11/093 (2006.01); G21C 21/02 (2006.01); G21C 3/334 (2006.01); G21C 3/10 (2006.01);
U.S. Cl.
CPC ...
B23K 11/255 (2013.01); B23K 11/002 (2013.01); B23K 11/0935 (2013.01); B23K 11/252 (2013.01); B23K 11/257 (2013.01); B23K 11/258 (2013.01); G21C 3/334 (2013.01); G21C 21/02 (2013.01); G21C 3/10 (2013.01); Y02E 30/40 (2013.01);
Abstract

A method of monitoring in real time pressure resistance welding of a cladding tube and an end plug. The method includes: a first step of detecting welding information including voltage, current, and welding force in a process of pressure resistance welding of a cladding tube and an end plug; a second step of comparing static factors obtained by calculating effective values for the welding information with predetermined reference values, respectively; a third step of calculating dynamic factors for the welding information including the gradient of instantaneous welding force, when the reference values are satisfied in the second step; and a fourth step of determining whether there is defect or not in welding quality by comparing the dynamic factors.

Find Patent Forward Citations

Na, Tae. (2019). Method of monitoring of resistance welding quality of nuclear fuel rod (U.S. Patent No. 10357844). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10357844

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