Title:
METHOD FOR SURFACE CLEANING AND STRESS REMOVAL OF INNER AND OUTER SURFACES OF MULTI-STRUCTURED SEAMLESS CLADDING TUBE
Document Type and Number:
WIPO Patent Application WO/2021/145474
Kind Code:
A1
Abstract:
In a method for surface cleaning and stress removal of the inner and outer surfaces of a multi-structured seamless cladding tube, a pilger operation is performed using a pilger device in a state in which a seamless tube is heated, and then a primary stress removal operation using a primary stress removal device and a secondary stress removal operation using a secondary stress removal device are sequentially performed, thereby enabling the removal of residual surface stress on the inner and outer surfaces of a seamless cladding tube.
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Inventors:
JANG JUNHO (KR)
BAHN CHIBUM (KR)
KIM JIHYUN (KR)
BAHN CHIBUM (KR)
KIM JIHYUN (KR)
Application Number:
PCT/KR2020/000663
Publication Date:
July 22, 2021
Filing Date:
January 14, 2020
Export Citation:
Assignee:
INT RARE METALS CO LTD (KR)
NAT UNIV PUSAN IND UNIV COOP FOUND (KR)
ULSAN NAT INST SCIENCE & TECH UNIST (KR)
NAT UNIV PUSAN IND UNIV COOP FOUND (KR)
ULSAN NAT INST SCIENCE & TECH UNIST (KR)
International Classes:
G21C3/06; B08B5/02
Foreign References:
| JPH0821887A | 1996-01-23 | |||
| KR20130087626A | 2013-08-06 | |||
| KR20100105996A | 2010-10-01 | |||
| CN101169215A | 2008-04-30 | |||
| KR20200064755A | 2020-06-08 |
Attorney, Agent or Firm:
NAMCHON PATENT & LAW FIRM (KR)
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