JP2014142157A5

JP2014142157A5 -

Info

Publication number: JP2014142157A5
Application number: JP2013012345A
Authority: JP
Filing date: 2013-01-25
Publication date: 2015-05-21
Anticipated expiration: 2033-01-25

Description

上記目的を達成するため、請求項１に記載の発明では、チューブ本体部（２１）には、被接合部材（２２、８）が、ろう材（２０２、８０２）によりろう付け接合されており、チューブ本体部（２１）と被接合部材（２２、８）とのろう付け接合面には、当該ろう付け接合面の酸化皮膜を化学的に除去するフラックス（３００）が設けられており、チューブ本体部（２１）におけるろう付け接合面を構成するろう付け面構成部（２１ａ）は、ろう材（２０２、８０２）以外の材料であって、かつ、フラックス（３００）と反応する反応材料を含有する材料により構成されており、ろう付け面構成部（２１ａ）は、反応材料以外の材料により構成されると共に前記ろう付け面構成部（２１ａ）において部分的に配置された被覆材（４００）によって被覆されていることを特徴としている。 In order to achieve the above object, in the invention according to claim 1, the member to be joined (22, 8) is brazed and joined to the tube main body (21) by the brazing material (202, 802), A flux (300) for chemically removing an oxide film on the brazed joint surface is provided on the brazed joint surface between the tube main body portion (21) and the members to be joined (22, 8). The brazing surface constituting part (21a) constituting the brazing joint surface in the part (21) is a material other than the brazing material (202, 802) and contains a reactive material that reacts with the flux (300). is composed of a material, the brazing surface constituting portion (21a) is partially arranged dressings in Rutotomoni the brazing surface constituting portion is made of a material other than the reaction material (21a) (400) It is characterized by being coated Te.

Claims

A heat exchanger tube comprising a tube body (21) in which a fluid circulates inside and aluminum or an aluminum alloy is used as a core material (201),
The member to be joined (22, 8) is brazed and joined to the tube main body (21) with a brazing material (202, 802),
On the brazed joint surface between the tube body (21) and the joined members (22, 8),
A flux (300) for chemically removing the oxide film on the brazed joint surface is provided,
The brazing surface constituting part (21a) constituting the brazing joint surface in the tube main body part (21) is a material other than the brazing material (202, 802) and reacts with the flux (300). It is made up of materials that contain reactive materials that
The brazing surface constituting portion (21a) is to be covered the by Rutotomoni the brazing surface constituting portion is made of a material other than the reaction material partially disposed dressings in (21a) (400) Characteristic heat exchanger tube.

The tube for a heat exchanger according to claim 1, wherein the covering material (400) is made of pure aluminum, an aluminum alloy not containing the reaction material, or the brazing material.

A heat exchanger tube comprising a tube body (21) in which a fluid circulates inside and aluminum or an aluminum alloy is used as a core material (201),
The member to be joined (22, 8) is brazed and joined to the tube main body (21) with a brazing material (202, 802),
The brazing surface constituting part (21a) constituting the brazing joint surface of the tube main body part (21) with the member to be joined (22, 8) is formed of the brazing material (202, 802) melted during brazing. It is composed of a material containing a flow-inhibiting material that inhibits flow,
The said brazing surface structure part (21a) is coat | covered with the coating | coated material (400) comprised with materials other than the said flow inhibition material, The tube for heat exchangers characterized by the above-mentioned.

The tube for a heat exchanger according to claim 3, wherein the covering material (400) is made of pure aluminum, an aluminum alloy not containing the flow-inhibiting material, or the brazing material.

The tube main body (21) is constituted by a bent plate-like member (200), and an inner column (22) for dividing the fluid flow path (20) in the tube main body (21) into a plurality of parts. Have
The tube for a heat exchanger according to any one of claims 1 to 4, wherein a portion of the plate-like member (200) constituting the inner pillar portion (22) is the member to be joined. .

The tube body (21) is constituted by a folded plate-like member (200),
The said covering material (400) is arrange | positioned only in the width direction center part of the said plate-shaped member (200) in the said tube main-body part (21), The heat exchanger for Claim 1 characterized by the above-mentioned. tube.