公开(公告)号：US06186222B1

公开(公告)日：2001-02-13

申请号：US09116254

申请日：1998-07-16

申请人： Takeyoshi Doko ,  Hirokazu Yamaguchi ,  Osamu Kato ,  Taketoshi Toyama ,  Kouji Hirakami ,  Akira Uchikawa ,  Takaaki Sakane ,  Homare Koutate

发明人： Takeyoshi Doko ,  Hirokazu Yamaguchi ,  Osamu Kato ,  Taketoshi Toyama ,  Kouji Hirakami ,  Akira Uchikawa ,  Takaaki Sakane ,  Homare Koutate

IPC分类号： F28F1318

CPC分类号： F28F1/126 ,  B23K35/288 ,  C23C4/04 ,  C23C4/08 ,  F28F19/06 ,  Y10T29/49377 ,  Y10T428/12063

摘要： There is disclosed an aluminum alloy tube whose outer surface is covered with a filler alloy by metal-spraying, wherein the base material of the tube has an uneven rough surface with the depth of 10 &mgr;m or more, and the difference between the highest projection of the base material surface and the highest projection of the filler alloy layer covering it is 3 to 25 &mgr;m; a heat exchanger, which is assembled by using the tubes; and a method of metal-spraying, which comprises metal-spraying an aluminum alloy filler powder in a melted state, by the high-velocity flame metal-spraying process, in which the filler contains 15 to 50% Si by weight, and the powder is mainly made up of particles whose diameter is 10 &mgr;m to 70 &mgr;m. The aluminum alloy tube is excellent in brazability and corrosion resistance, and by using the tube, it is possible to assemble a heat exchanger without allowing locally filler-unbonded parts to be formed. Further, according to the method of metal-spraying, it is possible to form a excellent filler alloy layer, and obtain a tube high in brazability and corrosion resistance.

摘要翻译： 公开了一种铝合金管，其外表面通过金属喷涂被填充合金覆盖，其中管的基材具有不均匀的粗糙表面，深度为10um或更大，并且最高投影之间的差异 基材表面和覆盖其的填充合金层的最高突起为3〜25μm; 热交换器，其通过使用管组装; 以及一种金属喷涂方法，其中包括通过高速火焰金属喷涂工艺对熔融状态的铝合金填料粉末进行金属喷涂，其中填料含有15〜50重量％的Si，粉末 主要由直径为10〜70um的颗粒组成。 铝合金管的钎焊性和耐腐蚀性优异，并且通过使用管，可以组装热交换器而不允许形成局部填料 - 未结合部分。 此外，根据金属喷涂的方法，可以形成优异的填充合金层，并获得高钎焊性和耐腐蚀性的管。

公开(公告)号：US06276447B1

公开(公告)日：2001-08-21

申请号：US09306344

申请日：1999-05-06

申请人： Takeshi Iguchi ,  Homare Kotate ,  Akira Uchikawa ,  Kouji Hirakami

发明人： Takeshi Iguchi ,  Homare Kotate ,  Akira Uchikawa ,  Kouji Hirakami

IPC分类号： F28F1318

CPC分类号： F28D9/0043 ,  B23K1/0008 ,  B23K1/0012 ,  F28F9/0234 ,  F28F9/0246 ,  Y10T29/49393

摘要： A tube is formed by brazing first and second plates, and is connected to a pipe through a connection block being brazed to a contacting surface of the first plate. A brazing material is clad on an inner surface of the first plate opposite to the contacting surface, and a hole penetrating through the first plate is formed in the first plate at a position corresponding to the connection block. Thus, during brazing, the brazing material clad on the inner surface of the first plate is supplied to the contacting surface through the hole by capillary phenomenon, so that the connection block is brazed to the first plate. As a result, an apparatus formed by brazing plural metal members, such as the tube of an oil cooler, is produced in low cost.

摘要翻译： 通过钎焊第一和第二板形成管，并且通过钎焊到第一板的接触表面的连接块连接到管。 钎焊材料包覆在与接触面相反的第一板的内表面上，并且穿过第一板的孔形成在与连接块对应的位置处的第一板中。 因此，在钎焊期间，通过毛细管现象将覆盖在第一板的内表面上的钎焊材料通过孔提供给接触表面，使得连接块钎焊到第一板。 结果，以低成本制造了通过钎焊多个金属构件（例如油冷却器的管）形成的装置。