Title:
表面性状に優れたアルミニウム合金押出材とその製造方法、および熱交換器用多孔管ならびに該多孔管を組み込んだ熱交換器の製造方法
Document Type and Number:
Japanese Patent JP4824358
Kind Code:
B2
Abstract:
An aluminum alloy extruded product exhibiting excellent surface properties, comprising 0.8 to 1.6% of Mn and 0.4 to 0.8% of Si at a ratio of Mn content to Si content (Mn%/Si%) of 0.7 to 2.4, with the balance being Al and inevitable impurities, the number of intermetallic compounds with a diameter (circle equivalent diameter) of 0.1 to 0.9 µm dispersed in a matrix being 2×10 5 or more per square millimeter. The aluminum alloy extruded product allows extrusion of a thin multi-port tube at a high limiting extrusion rate, prevents deposits from adhering to the surface of the extruded tube, and may be suitably used as a constituent member for an aluminum alloy automotive heat exchanger.
Inventors:
Tomohiko Nakamura
Masaaki Kawakubo
Hasegawa Yoshiharu
Naoki Yamashita
Tatsuya Hikita
Masaaki Kawakubo
Hasegawa Yoshiharu
Naoki Yamashita
Tatsuya Hikita
Application Number:
JP2005212069A
Publication Date:
November 30, 2011
Filing Date:
July 22, 2005
Export Citation:
Assignee:
株式会社デンソー
住友軽金属工業株式会社
住友軽金属工業株式会社
International Classes:
C22C21/00; B21C23/00; B21C23/08; B23K1/19; C22F1/04; F28F1/02; F28F21/08; B23K101/14; B23K103/10; C22F1/00
Domestic Patent References:
| JP2000008130A | ||||
| JP2004339582A | ||||
| JP9302434A |
Attorney, Agent or Firm:
Yasuo Fukuda
Kenji Akatsuka
Kenji Akatsuka