EP 0863220 B1 20000816 - Connecting element
Title (en)
Connecting element
Title (de)
Verbindungselement
Title (fr)
Elément de connexion
Publication
Application
Priority
EP 97810129 A 19970306
Abstract (en)
[origin: EP0863220A1] A fastener (especially a screw or rivet), for fastening components of aluminium, magnesium and their alloys, consists of an AlZnMgCu type aluminium alloy of composition (by wt.) 6.0-8.0% Zn, 2.0-3.5% Mg, 1.0-3.0% Cu, 0.05-0.30% Zr, NOTGREATER 0.30% Cr, NOTGREATER 0.50% Mn, NOTGREATER 0.10% Ti, NOTGREATER 0.20% Si, NOTGREATER 0.20% Fe, NOTGREATER 0.05% each ( NOTGREATER 0.15% total) of other elements, balance Al and impurities. Also claimed is a process for producing the above fastener by casting to a billet, homogenisation annealing, compressing to a starting material, solution annealing, quenching, cold forming to fasteners and thermally hardening, in which recovery annealing is carried out at 180-260 degrees C for 5 secs. to 120 mins. prior to cold forming.
IPC 1-7
IPC 8 full level
C22C 21/06 (2006.01); C22F 1/053 (2006.01)
CPC (source: EP)
C22C 21/06 (2013.01); C22F 1/053 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0863220 A1 19980909; EP 0863220 B1 20000816; EP 0863220 B2 20031001; AT E195557 T1 20000915; DE 59702201 D1 20000921; DK 0863220 T3 20001227; ES 2150208 T3 20001116; ES 2150208 T5 20040616; GR 3034859 T3 20010228; PT 863220 E 20001229
DOCDB simple family (application)
EP 97810129 A 19970306; AT 97810129 T 19970306; DE 59702201 T 19970306; DK 97810129 T 19970306; ES 97810129 T 19970306; GR 20000402548 T 20001115; PT 97810129 T 19970306