Title:
HIGH-PRECISION SEAMLESS PIPE HAVING SPECIAL-SHAPED HEXAGONAL CROSS-SECTION WITH CIRCLE INSIDE FOR USE IN NUCLEAR POWER AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/272609
Kind Code:
A1
Abstract:
The invention discloses a high-precision seamless pipe having a special-shaped hexagonal cross-section with a circle inside for use in nuclear power, which is made of stainless steel or a corrosion-resistant alloy having an elongation rate of more than 35%, has an outer width across flats of 10-68 mm with a tolerance of ±0.05 mm, and has an inner circle diameter of 9-66 mm with a tolerance of ±0.05 mm. Also disclosed is a manufacturing method for the high-precision seamless pipe having a special-shaped hexagonal cross-section with a circle inside for use in nuclear power.
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Inventors:
WANG TAO (CN)
CAI ZHIGANG (CN)
YANG HONG (CN)
ZHOU YUBIN (CN)
ZHANG YAOYAO (CN)
MA RONGLI (CN)
LUO XIA (CN)
LU PEIMIN (CN)
LI HUANNI (CN)
XU LIPING (CN)
CAI ZHIGANG (CN)
YANG HONG (CN)
ZHOU YUBIN (CN)
ZHANG YAOYAO (CN)
MA RONGLI (CN)
LUO XIA (CN)
LU PEIMIN (CN)
LI HUANNI (CN)
XU LIPING (CN)
Application Number:
PCT/CN2021/103690
Publication Date:
January 05, 2023
Filing Date:
June 30, 2021
Export Citation:
Assignee:
ZHEJIANG JIULI HI TECH METALS (CN)
International Classes:
B21C37/06; C21D1/26; C21D1/74; C21D1/773; C21D8/10; C21D9/08
Foreign References:
| CN103084426A | 2013-05-08 | |||
| CN112692065A | 2021-04-23 | |||
| CN103146959A | 2013-06-12 | |||
| CN106881355A | 2017-06-23 | |||
| CN110394375A | 2019-11-01 | |||
| CN111451315A | 2020-07-28 | |||
| JPS58199602A | 1983-11-21 |
Attorney, Agent or Firm:
ZHEJIANG KG IP LAW FIRM (CN)
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