EP 1264903 A3 20030827 - Refining of aluminium casting alloys by boron addition
Title (en)
Refining of aluminium casting alloys by boron addition
Title (de)
Reinigung von Aluminium-Gusslegierungen mittels Zugabe von Bor
Title (fr)
Affinage des alliages d'aluminium de fonderie par addition de bore
Publication
Application
Priority
- DE 10127753 A 20010607
- DE 10157722 A 20011124
Abstract (en)
[origin: EP1264903A2] Removing impurity alloying components from an aluminum cast alloy comprises completely melting the cast alloy; mixing with 0.005 weight % boron for the purpose of cleaning; casting the melt for a time sufficient for the boron to react with the impurity alloying components; and removing or retaining solids produced from the melt before or during casting. Preferred Features: Boron is added in the form of an aluminum-boron pre-alloy. Reaction time is at least one hour. The aluminum cast alloy is further treated for the purpose of grain refinement.
IPC 1-7
IPC 8 full level
C22B 21/06 (2006.01); C22C 1/02 (2006.01); C22C 1/03 (2006.01)
CPC (source: EP)
C22B 21/06 (2013.01); C22B 21/062 (2013.01); C22C 1/026 (2013.01); C22C 1/03 (2013.01)
Citation (search report)
- [XY] US 4507150 A 19850326 - DUBE GHYSLAIN [CA]
- [Y] EP 0099948 A1 19840208 - SHOWA ALUMINUM CORP [JP]
- [Y] DE 3608713 A1 19861009 - CABOT CORP [US]
- [A] EP 0521580 A1 19930107 - SHELL INT RESEARCH [NL]
- [Y] DATABASE WPI Section Ch Week 199811, Derwent World Patents Index; Class M25, AN 1998-119109, XP002246252
- [Y] DATABASE WPI Section Ch Week 199623, Derwent World Patents Index; Class M25, AN 1996-225257, XP002246253
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1264903 A2 20021211; EP 1264903 A3 20030827; EP 1264903 B1 20060920; DE 50208178 D1 20061102; ES 2271139 T3 20070416
DOCDB simple family (application)
EP 02009964 A 20020503; DE 50208178 T 20020503; ES 02009964 T 20020503