US2005019204A1PendingUtilityA1

Aluminium alloy for making fin stock material

40
Priority: Oct 5, 2001Filed: Oct 2, 2002Published: Jan 27, 2005
Est. expiryOct 5, 2021(expired)· nominal 20-yr term from priority
Inventors:Scott HallerJob Anthonius Van Der HoevenAdrianus Jacobus WittebroodAchim BürgerKlaus Vieregge
C22C 21/003C22C 21/00C22C 21/10F28F 21/084
40
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

An aluminium alloy for making fin stock material, having the composition in weight percent: Si≦1.2 Mn≦0.05 Mg≦0.05 Fe≦2.0 0.5≦Ni≦1.5 0.05≦Cu≦1.0 0.5≦Zn≦4.0 and/or 0.1≦Sn≦2.0 and/or 0.01≦In≦0.5 V≦0.40 and/or Ti≦0.01 and/or Cr≦0.01 and/or Zr≦0.01 other elements up to 0.05 each, up to 0.15 in total Al balance.

Claims

exact text as granted — not AI-modified
1 . An aluminium alloy for making fin stock material, having the composition in weight percent: 
 Si≦1.2    Mn≦0.05    Mg≦0.05    Fe≦2.0    0.5≦Ni≦1.5    0.05≦Cu≦1.0;    1.0≦Zn≦3.0 and/or 0.1≦Sn≦1.0 and/or 0.01≦In≦0.5    V≦0.40 and/or Ti<0.01 and/or Cr<0.01 and/or Zr<0.01    other elements up to 0.05 each, up to 0.15 in total, Al balance.    
     
     
         2 . An aluminium alloy according to  claim 1 , wherein Si is in the range of 0.4% to 0.8%.  
     
     
         3 . An aluminium alloy according to  claim 1 , wherein Mn≦0.03%.  
     
     
         4 . An aluminium alloy according to  claim 3 , wherein Mn≦0.01%.  
     
     
         5 . An aluminium alloy according to  claim 1 , wherein Mg≦0.03%.  
     
     
         6 . An aluminium alloy according to  claim 5 , wherein Mg≦0.01%.  
     
     
         7 . An aluminium alloy according to  claim 1 , wherein Fe is in the range of 0.3% to 1.6%.  
     
     
         8 . An aluminium alloy according to  claim 1 , wherein Ni is in the range of 0.8% to 1.2%.  
     
     
         9 . An aluminium alloy according to  claim 1 , wherein Cu is in the range of 0.1% to 0.8%.  
     
     
         10 . An aluminium alloy according to  claim 1 , wherein no In and no Sn is present.  
     
     
         11 . An aluminium alloy according to  claim 1 , wherein V<0.01%.  
     
     
         12 . Fin stock material made from the aluminium alloy according to  claim 1 , wherein the fin stock material has a post-braze conductivity of at least 26 MS/m (45% IACS).  
     
     
         13 . Fin stock material according to  claim 12 , wherein the fin stock material has a corrosion potential between −750 mV and −950 mV versus SCE (ASTM G69).  
     
     
         14 . Fin stock material according to  claim 12 , wherein the fin stock material has a post braze Ultimate Tensile Strength between 135 and 155 MPa.  
     
     
         15 . Fin stock material according to  claim 12 , wherein the fin stock material has a 0.2%-offset proof stress >50 MPa.  
     
     
         16 . Fin stock material according to  claim 12 , wherein the fin stock material has been clad on at least one side with a clad layer having a lower melting point than the fin stock material.  
     
     
         17 . A brazed heat exchanger having fins made of an aluminium alloy according to  claim 1 .  
     
     
         18 . A brazed heat exchanger having fins made of fin stock material according to  claim 12 .  
     
     
         19 . (Cancelled during International Stage)  
     
     
         20 . An aluminium alloy according to  claim 1 , wherein Fe is in the range of 0.7% to 1.3%.  
     
     
         21 . An aluminium alloy according to  claim 1 , wherein Cu is in the range of 0.1% to 0.6%.  
     
     
         22 . Fin stock material made from the aluminium alloy according to  claim 1 , wherein the fin stock material has a post-braze conductivity of at least 29 MS/m (50% IACS).  
     
     
         23 . Fin stock material according to  claim 12 , wherein the fin stock material has a corrosion potential between −750 mV and −850 mV versus SCE (ASTM G69).

Join the waitlist — get patent alerts

Track US2005019204A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.