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Title:
MANUFACTURING METHOD OF ULTRA-THIN SEAMLESS TUBE FOR HIGH-END EQUIPMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/178894
Kind Code:
A1
Abstract:
A manufacturing method of an ultra-thin seamless tube for a high-end equipment system, comprising steps such as multi-pass intermediate product cold rolling and intermediate product degreasing of a tube blank, fine rolling and molding, finished product degreasing, pure hydrogen protection solid solution treatment, low-stress straightening, surface fine polishing and shaping, follow-up clamping and stress relieving, finished product fixed cutting, and inner and outer surface cleaning. The ratio of the outer diameter to the wall thickness of the manufactured ultra-thin seamless tube is 80-150, the outer diameter range is 20-30 mm, the wall thickness range is 0.10-0.35 mm, the tolerance of the outer diameter and the wall thickness is ±0.01 mm, the straightness is smaller than or equal to 0.05 mm/overall length, and when being stretched at a high temperature of 750°C, the tensile strength is greater than or equal to 220 MPa, and the yield strength is greater than or equal to 100 MPa.

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Inventors:
ZHUANG JIANXIN (CN)
ZENG FANBO (CN)
ZHOU QUAN (CN)
JIA FENGMING (CN)
OU YUEFEI (CN)
SHAO QI (CN)
Application Number:
PCT/CN2022/107060
Publication Date:
September 28, 2023
Filing Date:
July 21, 2022
Export Citation:
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Assignee:
BAOYIN SPECIAL STEEL TUBE CO LTD (CN)
JIANGSU YINHUAN PREC STEEL TUBE CO LTD (CN)
International Classes:
B21B23/00; B21C37/06; B21C37/30
Foreign References:
CN114602996A2022-06-10
CN108032040A2018-05-15
CN113617875A2021-11-09
CN111451315A2020-07-28
CN112404163A2021-02-26
CN112692065A2021-04-23
JP2000246318A2000-09-12
JP2008221250A2008-09-25
Attorney, Agent or Firm:
CHANGZHOU BAIYETENGFEI PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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