Aluminum alloy fin material for heat exchanger

Patent · Tue Jun 08 00:00:00 EDT 1993

OSTI ID:6206634

Ishikawa, Kazunori; Hashiura, Mituo; Hasegawa, Yoshiharu

Process for preparing an aluminum alloy fin material for heat exchangers is described comprising casting an alloy consisting essentially of 0.4 to 1.0% by weight of silicon, 0.45 to 3.0% by weight of iron, 0.01 to 0.3% by weight of zirconium, at least one member of the group consisting of 0.2 to 2.0% by weight of zinc, 0.01 to 0.1% by weight of tin and 0.01 to 0.1% by weight of indium, and the balance being of aluminum and unavoidable impurities; heat treating said cast alloy at 450 C to 600 C for a time sufficient to provide homogenization of said cast alloy; hot rolling and cold rolling said heat treated alloy with at least one intermediate annealing; and following the final intermediate annealing, cold rolling at a cold roll ratio of 15 to 60% to obtain a final sheet thickness.

• Assignee: IMS; EDB-93-098816
• Patent Number(s): US 5217547; A
• Application Number: PPN: US 7-701845
• OSTI ID: 6206634
• Resource Relation: Patent File Date: 17 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
ALUMINIUM BASE ALLOYS
FABRICATION
HEAT EXCHANGERS
FINS
CASTING
CHEMICAL COMPOSITION
COLD WORKING
HEAT TREATMENTS
HOT WORKING
ROLLING
ALLOYS
ALUMINIUM ALLOYS
MATERIALS WORKING
420400* - Engineering- Heat Transfer & Fluid Flow
360101 - Metals & Alloys- Preparation & Fabrication