Title:
METHOD FOR MANUFACTURING FIN
Document Type and Number:
WIPO Patent Application WO/2023/188750
Kind Code:
A1
Abstract:
This method for manufacturing a fin includes: a waffle formation step for forming, on a fin material (A), a waffle part and a plate-shaped part (11) located around the waffle part; an incision step for forming, on the side part of the plate-shaped part (11) of the fin material (A), a continuation part (12) continuing from the plate-shaped part (11), and a fin groove part (13) for inserting a flat pipe; and a throttle step for forming, on the continuation part (12), a throttle part (18) that is shaped so as to be convex with respect to the continuation part (12).
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Inventors:
TSUTSUI MASAHIRO (JP)
TSUTSUMI YOSHIHIRO (JP)
SHIMIZU MOTOFUMI (JP)
TAKAHASHI TAKAYUKI (JP)
TSUTSUMI YOSHIHIRO (JP)
SHIMIZU MOTOFUMI (JP)
TAKAHASHI TAKAYUKI (JP)
Application Number:
PCT/JP2023/002278
Publication Date:
October 05, 2023
Filing Date:
January 25, 2023
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
B21D53/08; F28D1/053; F28F1/02; F28F1/30; F28F1/32
Domestic Patent References:
| WO2015029145A1 | 2015-03-05 |
Foreign References:
| JP2012154491A | 2012-08-16 | |||
| JP2019015410A | 2019-01-31 | |||
| JPS59141330A | 1984-08-14 | |||
| JPS57202927A | 1982-12-13 | |||
| CN111059953A | 2020-04-24 | |||
| JP2695126B2 | 1997-12-24 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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