US2019185968A1PendingUtilityA1

Al casting alloy

Assignee: KSM CASTINGS GROUP GMBHPriority: Aug 15, 2016Filed: Aug 4, 2017Published: Jun 20, 2019

Est. expiryAug 15, 2036(~10.1 yrs left)· nominal 20-yr term from priority

Inventors:Klaus Greven Manikandan Loganathan

C22C 21/02C22F 1/043C22C 21/06C22C 21/04C22C 21/08

PatentIndex Score

Cited by

References

Claims

Abstract

An Al casting alloy contains the following alloy components: Si: >3.8 to 5.8 wt.-%, Mg: 0.45 to 0.55 wt.-%, Cr: 0.05 to 0.5 wt.-%, Sr: 0.010 to 0.030, Contaminants: <0.1 wt.-%, and is supplemented to 100 wt.-% with Al, in each instance. Preferably, Si is contained at a content of more than 4.0 wt.-%, Mg is contained with a content of at least 0.47 wt.-%, Cr is contained with a content of at least 0.07 wt.-%, and Sr is contained with a content of at least 0.015 wt.-%.

Claims

exact text as granted — not AI-modified

1 : An A1 casting alloy that contains the following alloy components 
       Si: &gt;3.8 to 5.8 wt.-%, 
       Mg: 0.45 to 0.55 wt.-%, 
       Cr: 0.05 to 0.5 wt.-%, 
       Sr: 0.010 to 0.030, 
       Contaminants: &lt;0.1 wt.-%, 
       and is supplemented to 100 wt.-% with Al, in each instance. 
     
     
         2 : The A1 casting alloy according to  claim 1 , wherein Si is contained at a content of more than 4.0 wt.-%, preferably of at least 4.5 wt.-%, particularly preferably of at least 4.7 wt.-%, very particularly preferably of at least 4.9 wt.-%. 
     
     
         3 : The A1 casting alloy according to  claim 1 , wherein Si is contained with a content of maximally 5.5 wt.-%, preferably of maximally 5.3 wt.-%, particularly preferably of maximally 5.1 wt.-%. 
     
     
         4 : The A1 casting alloy according to  claim 1 , wherein Mg is contained with a content of more than 0.45 wt.-%, preferably of at least 0.47 wt.-%, particularly preferably of 0.49 wt.-%. 
     
     
         5 : The A1 casting alloy according to  claim 1 , wherein Mg is contained with a content of less than 0.55 wt.-%, preferably of maximally 0.53 wt.-%, particularly preferably of maximally 0.51 wt.-%. 
     
     
         6 : The A1 casting alloy according to  claim 1 , wherein Cr is contained with a content of more than 0.05 wt.-%, preferably of at least 0.07 wt.-%, particularly preferably of at least 0.09 wt.-%, very particularly preferably of at least 0.11 wt.-%. 
     
     
         7 : The A1 casting alloy according to  claim 1 , wherein Cr is contained with a content of less than 0.250 wt.-%, preferably of less than 0.20 wt.-%, particularly preferably of less than 0.18 wt.-%, very particularly preferably of less than 0.15 wt.-%, very very particularly preferably of less than 0.13 wt.-%. 
     
     
         8 : The A1 casting alloy according to  claim 1 , wherein Fe is contained with a content of less than 0.18 wt.-%, preferably of up to 0.15 wt.-%, particularly preferably with a content of up to 0.12 wt.-%. 
     
     
         9 : The A1 casting alloy according to  claim 1 , wherein Fe is contained with a content of at least 0.01 wt.-%. 
     
     
         10 : The A1 casting alloy according to  claim 1 , wherein Mn is contained with a content of up to 0.06 wt.-%, preferably of up to 0.05 wt.-%, particularly preferably of up to 0.03 wt.-%. 
     
     
         11 : The A1 casting alloy according to  claim 1 , wherein Mn is contained with a content of at least 0.01 wt.-%. 
     
     
         12 : The A1 casting alloy according to  claim 1 , wherein Ti is contained with a content of less than 0.2, preferably of up to 0.03 wt.-%. 
     
     
         13 : The A1 casting alloy according to  claim 1 , wherein Ti is contained with a content of at least 0.05 wt.-%, preferably of at least 0.10 wt.-%, particularly preferably of more than  0 . 15  wt.-%. 
     
     
         14 : The A1 casting alloy according to  claim 1 , wherein Cu is contained with a content of up to 0.03 wt.-%, preferably of up to 0.015 wt.-%, particularly preferably of up to 0.01 wt.-%, very particularly preferably of up to 0.0075 wt.-%. 
     
     
         15 : The A1 casting alloy according to  claim 1 , wherein Cu is contained with a content of at least 0.001 wt.-%, preferably of at least 0.0025 wt.-%, particularly preferably of at least 0.005 wt.-%. 
     
     
         16 : The A1 casting alloy according to  claim 1 , wherein Sr is contained with a content of at least 0.015 wt.-%, preferably of at least 0.019 wt.-%. 
     
     
         17 : The A1 casting alloy according to  claim 1 , wherein Sr is contained with a content of up to 0.025 wt.-%, preferably of up to 0.024 wt.-%. 
     
     
         18 : The A1 casting alloy according to  claim 1 , wherein Zr is contained with a content of less than 0.006 wt.-%, preferably of 0.001 to 0.005 wt.-%. 
     
     
         19 : The A1 casting alloy according to  claim 1 , wherein Zn is contained with a content of less than 0.006 wt.-%, preferably of 0.001 to 0.005 wt.-%. 
     
     
         20 : The A1 casting alloy according to  claim 1 , wherein contaminants are contained at a content of &lt;0.05 wt.-%, preferably of &lt;0.005 wt.-%. 
     
     
         21 - 31 . (canceled)

Join the waitlist — get patent alerts

Track US2019185968A1 — get alerts on status changes and closely related new filings.

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