EP 1264903 B1 20060920 - 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 8 full level
C22B 21/06 (2006.01); C22C 1/02 (2006.01); C22C 1/03 (2006.01); C22C 21/00 (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)
Designated contracting state (EPC)
DE ES FR GB IT SE
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