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2. 发明公开

KR1020050043965A 전열관과 세관의 접속 방법, 전열관의 압궤용 지그, 전열관과 세관의 접속 구조, 및 열교환기 失效
标题翻译：将薄管连接到换热管的方法
公开(公告)号：KR1020050043965A
公开(公告)日：2005-05-11
申请号：KR1020057004447
申请日：2004-05-31
申请人： 다이킨 고교 가부시키가이샤
发明人： 키타무라요시노리 , 사하라노부히로
IPC分类号： B23K1/18 , F25B39/00
CPC分类号： B21D39/048 , B21D41/04 , B21D53/08 , B23K1/0008 , B23K2201/06 , B23P2700/09 , F16L13/08 , F25B41/067 , F28F9/0275 , F28F9/26 , F28F2275/04 , Y10T29/4935 , Y10T29/49364 , Y10T29/49389
摘要： A method for connecting a thin tube to a heat transfer tube capable of securely maintaining the high pressure resisting strength of a connected portion between the heat transfer tube and the thin tube when the thin tube is connected directly to the heat transfer tube by brazing. In a connection structure between the heat transfer tube (12) and a capillary tube (41), a pinch part (14a) in which the tube end part (41a) of the capillary tube (41) is inserted from the anti-tube end face side of a flare part (14) and a brazing material sump part (14d) for reserving brazing material allowed to flow into the pinch part (14a) on the tube end face side of the pinch part (14a) are formed by collapsing, in a tube radial direction, only the anti-tube end face side portion of the tubular flare part (14) having a diameter larger than the diameter of the heat transfer tube (12) formed at the tube end part (12a) of the heat transfer tube (12). The tube end part (41a) of the capillary tube (41) is brazed to the heat transfer tube (12) in the state of being inserted into the pinch part (14a) from the tube end face side of the flare part (14).
摘要翻译：一种将细管连接到传热管上的方法，当薄管通过钎焊直接连接到传热管时，能够可靠地保持传热管和细管之间的连接部分的高耐压强度。在传热管（12）和毛细管（41）之间的连接结构中，将毛细管（41）的管端部（41a）从反管端插入的夹持部（14a）通过塌缩形成用于储存允许流入夹紧部分（14a）的管端面侧上的夹持部分（14a）中的钎焊材料的钎料部分（14）的表面侧和钎焊料槽部分（14d）在管径向上，只有管状扩口部分（14）的防管端面侧部分的直径大于形成在热管的管端部分（12a）处的传热管（12）的直径输送管（12）。毛细管（41）的管端部（41a）在从喇叭部（14）的管端面插入到夹持部（14a）的状态下钎焊到传热管（12）。

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