HEAT EXCHANGER MANUFACTURING METHOD AND HEAT EXCHANGER

WIPO Patent Application WO/2020/217940

A1

This method for manufacturing a heat exchanger (1A) is a method for manufacturing a heat exchanger (1A) that comprises: a heat transfer tube (20); and a distributor (10) that has an outer shell wall (11) to which the heat transfer tube (20) is welded. The method for manufacturing the heat exchanger (1A) comprises: a thin part forming step of forming, in a partial region of the outer shell wall (11), a thin part (14A) of a smaller thickness than the outer diameter of the heat transfer tube (20); a through-hole forming step of forming, in the thin part (14A), a through-hole (13A) into which the heat transfer tube (20) can be inserted; and a welding step of welding the heat transfer tube (20) to the outer shell wall (11) by inserting the heat transfer tube (20) into the through-hole (13A) and packing a solder material (40) into the gap between the inserted heat transfer tube (20) and the inner wall of the through-hole (13A) and into the interior of the partial region where the thin part (14A) is formed.

JP2721032	INDUSTRIAL APPLICABILITY: A method for forming a sheet metal gear-shaped part having a boss portion.
WO/2023/145331	PRESSING DEVICE, PRESSING METHOD, AND MACHINING TOOL FOR PRESSING
WO/1998/008634	METHOD OF PRODUCING AND STACKING COMPONENTS

ASAI SATOMI (JP)
YOKOI MASAHIRO (JP)
SEKIYA TAKASHI (JP)

PCT/JP2020/015454

October 29, 2020

April 06, 2020

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MITSUBISHI ELECTRIC CORP (JP)

B21D28/24; B21D53/08; B23K1/00; F28F9/013; F28F9/02

JP2013204070A	2013-10-07
JPH0615441A	1994-01-25
JP2003053523A	2003-02-26

KIMURA Mitsuru (JP)

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