EP 0971047 B1 20030108 - Boriding agent
Title (en)
Boriding agent
Title (de)
Boriermittel
Title (fr)
Agent de boruration
Publication
Application
Priority
DE 19830654 A 19980709
Abstract (en)
[origin: EP0971047A1] A metal boriding agent, including a potassium fluoroborate activator containing calcium fluoride, is new. A metal boriding agent comprises, apart from a boron source and an inert refractory diluent, 1-5 wt. % potassium fluoroborate and 5-40 wt. % calcium fluoride as activator. An Independent claim is also included for production of single phase Fe2B-containing boride layers on ferrous metal workpieces by covering the workpiece surface with the above boriding agent and heat treating at 800-1100 degrees C. Preferred Features: The boriding agent comprises (by wt.) 3-5 (especially 4)% boron carbide, 2-4 (especially 2.5)% potassium fluoroborate, 10-30 (especially 25)% calcium fluoride and 61-85 (especially 68.5)% silicon carbide.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C23C 8/70 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0971047 A1 20000112; EP 0971047 B1 20030108; AT E230809 T1 20030115; CA 2277006 A1 20000109; CZ 243999 A3 20000315; CZ 295205 B6 20050615; DE 19830654 A1 20000113; DE 19830654 C2 20020627; DE 59903955 D1 20030213; ES 2189316 T3 20030701; JP 2000038651 A 20000208; JP 4209043 B2 20090114; TR 199901596 A2 20000221; TR 199901596 A3 20000221; US 6245162 B1 20010612; ZA 994445 B 20000113
DOCDB simple family (application)
EP 99111057 A 19990615; AT 99111057 T 19990615; CA 2277006 A 19990708; CZ 243999 A 19990708; DE 19830654 A 19980709; DE 59903955 T 19990615; ES 99111057 T 19990615; JP 19635399 A 19990709; TR 9901596 A 19990708; US 34972299 A 19990708; ZA 994445 A 19990708