Aluminum alloy piping material having an excellent corrosion resistance and workability

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6638376
APP PUB NO 20020071782A1
SERIAL NO

09952211

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An aluminum alloy piping material exhibiting good corrosion resistance and having an excellent workability, such as bulge formation capability at the pipe ends. The aluminum alloy piping material is suitably used for pipes connecting automotive radiators and heaters or pipes connecting evaporators, condensers, and compressors. The aluminum alloy material is formed from an aluminum alloy which contains 0.3-1.5% of Mn, 0.20% or less of Cu, 0.06-0.30% of Ti, 0.01-0.20% of Fe, and 0.01-0.20% of Si, with the balance being Al and impurities, wherein, among Si compounds, Fe compounds, and Mn compounds present in the matrix, the number of compounds with a particle diameter of 0.5 .mu.m or more is 2.times.10.sup.4 or less per mm.sup.2. The aluminum alloy piping material may further comprise 0.4% or less of Mg.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SUMITOMO LIGHT METAL INDUSTRIES LTDTOKYO JAPAN TOKYO METROPOLIS
DENSO CORPORARATION1-1 SHOWA-CHO KARIYA CITY AICHI 448-8661

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukuda, Toshihiko Nagoya, JP 43 393
Hasegawa, Yoshiharu Obu, JP 21 296
Koyama, Takahiro Nagoya, JP 75 493
Miyachi, Haruhiko Okazaki, JP 10 149
Shoji, Yoshifusa Nagoya, JP 11 154
Tanaka, Hirokazu Tajimi, JP 406 3974

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation