公开(公告)号：US09012033B2

公开(公告)日：2015-04-21

申请号：US12798151

申请日：2010-03-29

申请人： Hiroki Matsuo ,  Haruhiko Miyachi ,  Kenji Negura ,  Naoki Yamashita ,  Yuji Hisatomi ,  Yasunaga Itoh

发明人： Hiroki Matsuo ,  Haruhiko Miyachi ,  Kenji Negura ,  Naoki Yamashita ,  Yuji Hisatomi ,  Yasunaga Itoh

IPC分类号： B32B15/20 ,  C22C21/02 ,  B32B15/01 ,  C22C21/10 ,  F28D1/03 ,  F28F19/06 ,  F28F21/08

CPC分类号： C22C21/02 ,  B32B15/016 ,  C22C21/10 ,  F28D1/0308 ,  F28F19/06 ,  F28F21/089 ,  Y10S165/905 ,  Y10T428/12764

摘要： An aluminum alloy clad sheet for heat exchangers includes a core material, a cladding material 1, and a cladding material 2, one side and the other side of the core material being respectively clad with the cladding material 1 and the cladding material 2, the core material containing 0.5 to 1.2% of Si, 0.2 to 1.0% of Cu, 1.0 to 1.8% of Mn, and 0.05 to 0.3% of Ti, with the balance being Al and unavoidable impurities, the cladding material 1 containing 3 to 6% of Si, 2 to 8% of Zn, and at least one of 0.3 to 1.8% of Mn and 0.05 to 0.3% of Ti, with the balance being Al and unavoidable impurities, and the cladding material 2 containing 6 to 13% of Si, with the balance being Al and unavoidable impurities, the cladding material 1 serving as the outer side of the aluminum alloy clad sheet during use.

摘要翻译： 用于热交换器的铝合金包覆片包括芯材料，包层材料1和包覆材料2，芯材的一侧和另一侧分别包覆包层材料1和包层材料2，芯体 含有0.5〜1.2％的Si，0.2〜1.0％的Cu，1.0〜1.8％的Mn和0.05〜0.3％的Ti，余量为Al和不可避免的杂质，包层材料1含有3〜6％的 Si，2〜8％的Zn，0.3〜1.8％的Mn和0.05〜0.3％的Ti中的至少1种，余量为Al和不可避免的杂质，含有6〜13％的Si的包层材料2， 余量为Al和不可避免的杂质，包覆材料1在使用期间用作铝合金包覆板的外侧。

公开(公告)号：US09440315B2

公开(公告)日：2016-09-13

申请号：US13378854

申请日：2010-06-21

申请人： Naoki Yamashita ,  Yasunaga Itoh ,  Yuji Hisatomi

发明人： Naoki Yamashita ,  Yasunaga Itoh ,  Yuji Hisatomi

IPC分类号： B23K35/362 ,  B23K35/28 ,  B23K35/36 ,  C22C21/00 ,  C22C21/02 ,  C22C21/10 ,  C22C21/14 ,  F28F19/02 ,  F28F21/08 ,  F28D21/00

CPC分类号： B21D53/06 ,  B23K35/282 ,  B23K35/3607 ,  B23K35/362 ,  B23K2101/14 ,  C22C21/00 ,  C22C21/02 ,  C22C21/10 ,  C22C21/14 ,  F28D2021/0084 ,  F28D2021/0085 ,  F28F1/00 ,  F28F19/02 ,  F28F19/06 ,  F28F21/084 ,  F28F2275/04

摘要： An aluminum alloy heat exchanger is produced by applying a coating material that is prepared by adding a binder to a mixture of an Si powder and a Zn-containing compound flux powder to a surface of an aluminum alloy refrigerant tube, assembling a bare fin that is formed of an Al—Mn—Zn alloy with the refrigerant tube, and brazing the refrigerant tube and the bare fin by heating in an atmosphere-controlled furnace, the refrigerant tube being an extruded product of an aluminum alloy that comprises 0.5 to 1.7% (mass %, hereinafter the same) of Mn, less than 0.10% of Cu, and less than 0.10% of Si, with the balance being Al and unavoidable impurities, a mixing ratio of the Si powder to the Zn-containing compound flux powder being 10:90 to 40:60, the binder being added in an amount of 5 to 40% based on the total amount of the coating material, the coating material being applied to an outer surface of the refrigerant tube so that the total amount of the Si powder and the Zn-containing compound flux powder is 5 to 30 g/m2, the surface of the refrigerant tube subjected to brazing having a potential lower than that of an area of the refrigerant tube that is deeper than a diffusion depth of Si and Zn by 20 to 200 mV, and a potential of the fin being lower than that of a deep area of the refrigerant tube.

摘要翻译： 通过将通过将Si粉末和含Zn化合物助焊剂粉末的混合物中的粘合剂添加到铝合金制冷剂管的表面而制备的涂料来制造铝合金热交换器， 由Al-Mn-Zn合金与制冷剂管形成，并且在气氛控制的炉中通过加热钎焊制冷剂管和裸露的翅片，制冷剂管是铝合金的挤出产品，其包含0.5-1.7％（ 质量％，以下相同），小于0.10％的Cu和小于0.10％的Si，余量为Al和不可避免的杂质，Si粉末与含Zn化合物焊剂粉末的混合比为 10:90〜40:60，粘合剂的添加量相对于涂料总量为5〜40％，涂料施加到制冷剂管的外表面， Si粉末和含Zn组合物 焊剂粉末为5〜30g / m 2，制冷剂管的表面的电位低于比Si和Zn的扩散深度高20〜200mV的制冷剂管的面积的电位， 并且翅片的电位低于制冷剂管的深部区域的电位。

公开(公告)号：US20100266871A1

公开(公告)日：2010-10-21

申请号：US12798151

申请日：2010-03-29

申请人： Hiroki Matsuo ,  Haruhiko Miyachi ,  Kenji Negura ,  Naoki Yamashita ,  Yuji Hisatomi ,  Yasunaga Itoh

发明人： Hiroki Matsuo ,  Haruhiko Miyachi ,  Kenji Negura ,  Naoki Yamashita ,  Yuji Hisatomi ,  Yasunaga Itoh

IPC分类号： B32B15/20 ,  B32B15/01

CPC分类号： C22C21/02 ,  B32B15/016 ,  C22C21/10 ,  F28D1/0308 ,  F28F19/06 ,  F28F21/089 ,  Y10S165/905 ,  Y10T428/12764

摘要： An aluminum alloy clad sheet for heat exchangers includes a core material, a cladding material 1, and a cladding material 2, one side and the other side of the core material being respectively clad with the cladding material 1 and the cladding material 2, the core material containing 0.5 to 1.2% of Si, 0.2 to 1.0% of Cu, 1.0 to 1.8% of Mn, and 0.05 to 0.3% of Ti, with the balance being Al and unavoidable impurities, the cladding material 1 containing 3 to 6% of Si, 2 to 8% of Zn, and at least one of 0.3 to 1.8% of Mn and 0.05 to 0.3% of Ti, with the balance being Al and unavoidable impurities, and the cladding material 2 containing 6 to 13% of Si, with the balance being Al and unavoidable impurities, the cladding material 1 serving as the outer side of the aluminum alloy clad sheet during use.

摘要翻译： 用于热交换器的铝合金包覆片包括芯材料，包层材料1和包覆材料2，芯材的一侧和另一侧分别包覆包层材料1和包层材料2，芯体 含有0.5〜1.2％的Si，0.2〜1.0％的Cu，1.0〜1.8％的Mn和0.05〜0.3％的Ti，余量为Al和不可避免的杂质，包层材料1含有3〜6％的 Si，2〜8％的Zn，0.3〜1.8％的Mn和0.05〜0.3％的Ti中的至少1种，余量为Al和不可避免的杂质，含有6〜13％的Si的包层材料2， 余量为Al和不可避免的杂质，包覆材料1在使用期间用作铝合金包覆板的外侧。

公开(公告)号：US20100263768A1

公开(公告)日：2010-10-21

申请号：US12798315

申请日：2010-04-01

申请人： Yuji Hisatomi ,  Naoki Yamashita ,  Yasunaga Itoh

发明人： Yuji Hisatomi ,  Naoki Yamashita ,  Yasunaga Itoh

IPC分类号： C22F1/057 ,  C22C21/12

CPC分类号： B23K35/22 ,  B23K1/0012 ,  B23K35/286 ,  B23K35/288 ,  B23K2101/14 ,  B32B15/016 ,  C22C21/00 ,  C22C21/02 ,  F28F1/022 ,  F28F21/084

摘要： An aluminum alloy clad sheet for heat exchangers includes a core material, a cladding material 1, and a cladding material 2, one side and the other side of the core material being respectively clad with the cladding material 1 and the cladding material 2, the core material containing 0.5 to 1.2% of Si, 0.2 to 1.0% of Cu, and 1.0 to 1.8% of Mn, with the balance being Al and unavoidable impurities, the cladding material 1 containing 3 to 6% of Si, 2 to 8% of Zn, and at least one of 0.3 to 1.8% of Mn and 0.05 to 0.3% of Ti, with the balance being Al and unavoidable impurities, and the cladding material 2 containing 6 to 13% of Si, with the balance being Al and unavoidable impurities, the cladding material 1 being positioned on the outer side of the aluminum alloy clad sheet during use.

摘要翻译： 用于热交换器的铝合金包覆片包括芯材料，包层材料1和包覆材料2，芯材的一侧和另一侧分别包覆包层材料1和包层材料2，芯体 含有0.5〜1.2％的Si，0.2〜1.0％的Cu和1.0〜1.8％的Mn，余量为Al和不可避免的杂质，包含3〜6％的Si的包层材料1，2〜8％的Si Zn，以及0.3〜1.8％的Mn和0.05〜0.3％的Ti中的至少一种，余量为Al和不可避免的杂质，包层材料2含有6〜13％的Si，余量为Al，不可避免 杂质，包覆材料1在使用期间位于铝合金包覆板的外侧。

公开(公告)号：US20120145365A1

公开(公告)日：2012-06-14

申请号：US13378854

申请日：2010-06-21

申请人： Naoki Yamashita ,  Yasunaga Itoh ,  Yuji Hisatomi

发明人： Naoki Yamashita ,  Yasunaga Itoh ,  Yuji Hisatomi

IPC分类号： F28F13/18 ,  C22F1/04

CPC分类号： B21D53/06 ,  B23K35/282 ,  B23K35/3607 ,  B23K35/362 ,  B23K2101/14 ,  C22C21/00 ,  C22C21/02 ,  C22C21/10 ,  C22C21/14 ,  F28D2021/0084 ,  F28D2021/0085 ,  F28F1/00 ,  F28F19/02 ,  F28F19/06 ,  F28F21/084 ,  F28F2275/04

摘要： An aluminum alloy heat exchanger is produced by applying a coating material that is prepared by adding a binder to a mixture of an Si powder and a Zn-containing compound flux powder to a surface of an aluminum alloy refrigerant tube, assembling a bare fin that is formed of an Al—Mn—Zn alloy with the refrigerant tube, and brazing the refrigerant tube and the bare fin by heating in an atmosphere-controlled furnace, the refrigerant tube being an extruded product of an aluminum alloy that comprises 0.5 to 1.7% (mass %, hereinafter the same) of Mn, less than 0.10% of Cu, and less than 0.10% of Si, with the balance being Al and unavoidable impurities, a mixing ratio of the Si powder to the Zn-containing compound flux powder being 10:90 to 40:60, the binder being added in an amount of 5 to 40% based on the total amount of the coating material, the coating material being applied to an outer surface of the refrigerant tube so that the total amount of the Si powder and the Zn-containing compound flux powder is 5 to 30 g/m2, the surface of the refrigerant tube subjected to brazing having a potential lower than that of an area of the refrigerant tube that is deeper than a diffusion depth of Si and Zn by 20 to 200 mV, and a potential of the fin being lower than that of a deep area of the refrigerant tube.

摘要翻译： 通过将通过将Si粉末和含Zn化合物助焊剂粉末的混合物中的粘合剂添加到铝合金制冷剂管的表面而制备的涂料来制造铝合金热交换器， 由Al-Mn-Zn合金与制冷剂管形成，并且在气氛控制的炉中通过加热钎焊制冷剂管和裸露的翅片，制冷剂管是铝合金的挤出产品，其包含0.5-1.7％（ 质量％，以下相同），小于0.10％的Cu和小于0.10％的Si，余量为Al和不可避免的杂质，Si粉末与含Zn化合物焊剂粉末的混合比为 10:90〜40:60，粘合剂的添加量相对于涂料总量为5〜40％，涂料施加到制冷剂管的外表面， Si粉末和含Zn组合物 焊剂粉末为5〜30g / m 2，制冷剂管的表面的电位低于比Si和Zn的扩散深度高20〜200mV的制冷剂管的面积的电位， 并且翅片的电位低于制冷剂管的深部区域的电位。

公开(公告)号：US20130118013A1

公开(公告)日：2013-05-16

申请号：US13699182

申请日：2011-05-10

申请人： Naoki Yamashita ,  Yuji Hisatomi

发明人： Naoki Yamashita ,  Yuji Hisatomi

IPC分类号： B23P15/26

CPC分类号： B23P15/26 ,  B23K1/0012 ,  B23K1/008 ,  B23K1/203 ,  B23K35/002 ,  B23K35/28 ,  B23K35/282 ,  B23K35/365 ,  B23K2101/14 ,  C22C21/00 ,  C23C26/02 ,  C23C30/00 ,  F28F1/022 ,  F28F1/126 ,  F28F21/084 ,  F28F21/089 ,  F28F2255/16 ,  Y10T29/49378

摘要： A method for producing an aluminum alloy heat exchanger includes applying a coating material prepared by mixing an Si powder, a flux powder, and a binder to a surface of a multiport flat refrigerant tube, assembling an aluminum alloy bare fin with the multiport flat refrigerant tube, and brazing the multiport flat refrigerant tube and the aluminum alloy bare fin to obtain an aluminum alloy heat exchanger, the multiport flat refrigerant tube being formed of an aluminum alloy extruded material that includes 0.5 to 1.7 mass % of Mn, less than 0.10 mass % of Si, and less than 0.10 mass % of Cu, with the balance being Al and unavoidable impurities, the aluminum alloy bare fin being a corrugated fin that is obtained by forming an Al—Mn—Zn alloy material, the coating material being prepared by mixing an Si powder, a Zn-containing compound flux powder, a Zn-free compound flux powder, and a binder, the Si powder being applied in an amount of 1 to 4 g/m2, and the aluminum alloy heat exchanger obtained by brazing having a configuration in which a deep area of the refrigerant tube has the highest potential, and the potential decreases in order from a surface area of the refrigerant tube, a fin joint fillet, and the fin.

摘要翻译： 一种铝合金热交换器的制造方法，其特征在于，将通过将Si粉末，助熔剂粉末和粘合剂混合而成的涂料施加到多端口平面制冷剂管的表面，将铝合金裸翅片与多端口平面制冷剂管 并且将多孔扁平制冷剂管和铝合金裸翅片钎焊以获得铝合金热交换器，所述多端口平面制冷剂管由包含0.5至1.7质量％的Mn，小于0.10质量％的铝合金挤压材料形成， 的Si，小于0.10质量％的Cu，余量为Al和不可避免的杂质，铝合金裸翅片为通过形成Al-Mn-Zn合金材料而获得的波纹状散热片，该涂料由 混合Si粉末，含Zn化合物助焊剂粉末，不含Zn的复合焊剂粉末和粘合剂，以1〜4g / m 2的量涂布Si粉末，将铝合金热交换器ob 通过具有制冷剂管的深部区域具有最高电位的构造的钎焊，并且该电位从制冷剂管，翅片接头圆角和翅片的表面积依次减小。

公开(公告)号：US20050011636A1

公开(公告)日：2005-01-20

申请号：US10860560

申请日：2004-06-03

申请人： Haruhiko Miyachi ,  Yoshiharu Hasegawa ,  Masamichi Makihara ,  Yasunaga Itoh ,  Naoki Yamashita ,  Toshihiko Fukuda

发明人： Haruhiko Miyachi ,  Yoshiharu Hasegawa ,  Masamichi Makihara ,  Yasunaga Itoh ,  Naoki Yamashita ,  Toshihiko Fukuda

IPC分类号： B23K1/00 ,  B23K1/19 ,  B23K101/14 ,  B23K103/10 ,  F28F21/08 ,  F28F19/00

CPC分类号： F28F19/06 ,  F28F1/126 ,  F28F21/084 ,  F28F21/089 ,  Y10S165/905 ,  Y10T428/12764 ,  Y10T428/31678

摘要： The present invention provides a heat exchanger which is assembled by brazing an aluminum fin material to the outer surface of an aluminum tube material formed by bending a sheet material, in particular, an aluminum heat exchanger which can be suitably used as an automotive heat exchanger such as a condenser or evaporator. The tube material is formed of a two-layer clad sheet which includes a core material and an Al—Zn alloy layer clad on the core material. The Al—Zn alloy layer is clad on the outer surface of the tube material and brazed to the aluminum fin material. The potential of the Al—Zn alloy layer in normal corrosive solution is 100 mV or more lower than the potential of the core material in the normal corrosive solution. The potential of the Al—Zn alloy layer in the normal corrosive solution is lower than the potential of the core material in high-concentration corrosive water. The normal corrosive solution refers to an aqueous solution containing 10 g/l of NaCl and 0.3 g/l of Na2SO4, and the high-concentration corrosive water refers to an aqueous solution in which the NaCl concentration is increased by 30 times by concentrating the above aqueous solution.

摘要翻译： 本发明提供一种热交换器，其通过将铝翅片材料钎焊到通过弯曲板材形成的铝管材料的外表面而组装，特别是铝热交换器，铝热交换器可适合用作汽车热交换器 作为冷凝器或蒸发器。 管材由包含芯材和在芯材上包覆的Al-Zn合金层的双层包覆板形成。 Al-Zn合金层被覆在管材的外表面上并钎焊到铝翅片材料上。 正常腐蚀性溶液中的Al-Zn合金层的电位比正常腐蚀性溶液中的芯材的电位低100mV。 正常腐蚀性溶液中Al-Zn合金层的电位低于高浓度腐蚀性水中芯材的电位。 正常腐蚀性溶液是指含有10g / l NaCl和0.3g / l Na 2 SO 4的水溶液，高浓度腐蚀性水是指通过浓缩上述NaCl浓度将NaCl浓度提高30倍的水溶液 水溶液。

公开(公告)号：US07250223B2

公开(公告)日：2007-07-31

申请号：US10860560

申请日：2004-06-03

申请人： Haruhiko Miyachi ,  Yoshiharu Hasegawa ,  Masamichi Makihara ,  Yasunaga Itoh ,  Naoki Yamashita ,  Toshihiko Fukuda

发明人： Haruhiko Miyachi ,  Yoshiharu Hasegawa ,  Masamichi Makihara ,  Yasunaga Itoh ,  Naoki Yamashita ,  Toshihiko Fukuda

IPC分类号： F28F23/00 ,  F28F1/12 ,  F28F1/42 ,  F28F21/08 ,  B32B7/02 ,  B32B15/01 ,  B32B15/20

CPC分类号： F28F19/06 ,  F28F1/126 ,  F28F21/084 ,  F28F21/089 ,  Y10S165/905 ,  Y10T428/12764 ,  Y10T428/31678

摘要： The present invention provides a heat exchanger which is assembled by brazing an aluminum fin material to the outer surface of an aluminum tube material formed by bending a sheet material, in particular, an aluminum heat exchanger which can be suitably used as an automotive heat exchanger such as a condenser or evaporator. The tube material is formed of a two-layer clad sheet which includes a core material and an Al—Zn alloy layer clad on the core material. The Al—Zn alloy layer is clad on the outer surface of the tube material and brazed to the aluminum fin material. The potential of the Al—Zn alloy layer in a normal corrosive solution is at least 100 mV lower than the potential of the core material in the normal corrosive solution. The potential of the Al—Zn alloy layer in the normal corrosive solution is lower than the potential of the core material in high-concentration corrosive water. The normal corrosive solution refers to an aqueous solution containing 10 g/l of NaCl and 0.3 g/l of Na2SO4, and the high-concentration corrosive water refers to an aqueous solution in which the NaCl concentration is increased by 30 times by concentrating the above aqueous solution.

摘要翻译： 本发明提供一种热交换器，其通过将铝翅片材料钎焊到通过弯曲板材形成的铝管材料的外表面而组装，特别是铝热交换器，铝热交换器可适合用作汽车热交换器 作为冷凝器或蒸发器。 管材由包含芯材和在芯材上包覆的Al-Zn合金层的双层包覆板形成。 Al-Zn合金层被覆在管材的外表面上并钎焊到铝翅片材料上。 正常腐蚀性溶液中Al-Zn合金层的电位比正常腐蚀性溶液中芯材的电位低至少100mV。 正常腐蚀性溶液中Al-Zn合金层的电位低于高浓度腐蚀性水中芯材的电位。 正常腐蚀性溶液是指含有10g / l NaCl和0.3g / l Na 2 SO 4·4的水溶液，高浓度腐蚀性水是指 通过浓缩上述水溶液使NaCl浓度增加30倍的水溶液。

公开(公告)号：US06849136B2

公开(公告)日：2005-02-01

申请号：US10205595

申请日：2002-07-25

申请人： Yoshiharu Hasegawa ,  Koji Hirao ,  Hiroshi Nishikawa ,  Yasunaga Itoh ,  Naoki Yamashita ,  Shinichi Tani ,  Keiichi Sakai ,  Eiichi Kashima

发明人： Yoshiharu Hasegawa ,  Koji Hirao ,  Hiroshi Nishikawa ,  Yasunaga Itoh ,  Naoki Yamashita ,  Shinichi Tani ,  Keiichi Sakai ,  Eiichi Kashima

IPC分类号： B22D21/04 ,  B22D27/04 ,  B23K1/00 ,  B23K35/02 ,  B23K35/28 ,  B23K101/14 ,  C22C21/00 ,  B23K35/363

CPC分类号： B23K35/0238 ,  B23K35/286 ,  Y10T29/4935

摘要： An object of the present invention is to provide a filler metal for an aluminum brazing sheet for heat exchangers capable of preventing or controlling occurrence of a melting hole during heating for brazing, and a method of manufacturing the same. In an Al—Si alloy filler metal which is clad on the aluminum brazing sheet and melted during heating for brazing, the maximum particle diameter of a coarse Si particle crystallized in the eutectic structure of the filler metal is 20 μm or less. Provided that an average value and a standard deviation in a normal distribution of the particle diameter of the coarse Si particle in the filler metal are respectively μ and σ, (μ+3σ) is preferably 10 μm or less. This brazing sheet is obtained by a method of adding a specific amount of Na, Sr, or Sb to the filler metal, a method of limiting the amount of impurities in the filler metal within a specific range, a method of specifying a cooling rate during the casting of the filler metal, or the like.

摘要翻译： 本发明的目的是提供一种能够防止或控制用于钎焊的加热期间的熔融孔发生的热交换器的铝钎焊板的填充金属及其制造方法。 在铝钎焊片上包覆并在钎焊加热时熔融的Al-Si合金填充金属中，在填充金属的共晶结构中结晶的粗Si颗粒的最大粒径为20μm以下。 假设填充金属中的粗Si颗粒的粒径的正态分布的平均值和标准偏差分别为mu和σ，（mu + 3sigma）优选为10μm以下。 该钎焊片是通过向填充金属添加特定量的Na，Sr或Sb的方法获得的，将填充金属中的杂质量限制在特定范围内的方法，指定冷却速度的方法 填充金属的铸造等。

公开(公告)号：US09132518B2

公开(公告)日：2015-09-15

申请号：US13699182

申请日：2011-05-10

申请人： Naoki Yamashita ,  Yuji Hisatomi

发明人： Naoki Yamashita ,  Yuji Hisatomi

IPC分类号： B23P15/26 ,  B23K1/00 ,  B23K1/008 ,  B23K1/20 ,  B23K35/00 ,  B23K35/28 ,  B23K35/365 ,  C22C21/00 ,  F28F1/02 ,  F28F1/12 ,  F28F21/08 ,  C23C26/02 ,  C23C30/00

CPC分类号： B23P15/26 ,  B23K1/0012 ,  B23K1/008 ,  B23K1/203 ,  B23K35/002 ,  B23K35/28 ,  B23K35/282 ,  B23K35/365 ,  B23K2101/14 ,  C22C21/00 ,  C23C26/02 ,  C23C30/00 ,  F28F1/022 ,  F28F1/126 ,  F28F21/084 ,  F28F21/089 ,  F28F2255/16 ,  Y10T29/49378

摘要： A method for producing an aluminum alloy heat exchanger includes applying a coating material prepared by mixing an Si powder, a flux powder, and a binder to a surface of a multiport flat refrigerant tube, assembling an aluminum alloy bare fin with the multiport flat refrigerant tube, and brazing the multiport flat refrigerant tube and the aluminum alloy bare fin to obtain an aluminum alloy heat exchanger, the multiport flat refrigerant tube being formed of an aluminum alloy extruded material that includes 0.5 to 1.7 mass % of Mn, less than 0.10 mass % of Si, and less than 0.10 mass % of Cu, with the balance being Al and unavoidable impurities, the aluminum alloy bare fin being a corrugated fin that is obtained by forming an Al—Mn—Zn alloy material, the coating material being prepared by mixing an Si powder, a Zn-containing compound flux powder, a Zn-free compound flux powder, and a binder, the Si powder being applied in an amount of 1 to 4 g/m2, and the aluminum alloy heat exchanger obtained by brazing having a configuration in which a deep area of the refrigerant tube has the highest potential, and the potential decreases in order from a surface area of the refrigerant tube, a fin joint fillet, and the fin.

摘要翻译： 一种铝合金热交换器的制造方法，其特征在于，将通过将Si粉末，助熔剂粉末和粘合剂混合而成的涂料施加到多端口平面制冷剂管的表面，将铝合金裸翅片与多端口平面制冷剂管 并且将多孔扁平制冷剂管和铝合金裸翅片钎焊以获得铝合金热交换器，所述多端口平面制冷剂管由包含0.5至1.7质量％的Mn，小于0.10质量％的铝合金挤压材料形成， 的Si，小于0.10质量％的Cu，余量为Al和不可避免的杂质，铝合金裸翅片为通过形成Al-Mn-Zn合金材料而获得的波纹状散热片，该涂料由 混合Si粉末，含Zn化合物焊剂粉末，不含Zn的复合焊剂粉末和粘合剂，施加的Si粉末的量为1〜4g / m 2，铝合金热交换 r，其制冷剂管的深部区域具有最高的电位，电位从制冷剂管的表面积，翅片接头圆角和翅片的顺序下降。