EP 2158988 A1 20100303 - Method for manufacturing castings with integrated components
Title (en)
Method for manufacturing castings with integrated components
Title (de)
Verfahren zur Herstellung von Gussteilen mit integrierten Bauteilen
Title (fr)
Procédé de fabrication de pièces de fonte dotées de composants intégrés
Publication
Application
Priority
EP 08105119 A 20080825
Abstract (en)
The method for producing cast parts with integrated components, which have a high surface hardness than the remaining cast part, comprises casting the integrated component simultaneously with the remaining cast part, and subjecting the integrated component to a surface treatment after casting process. The surface treatment comprises a surface hardening with a hardness of larger than 50 harmonic related carrier (HRC) and a surface coating with a hardness of larger than 50 HRC, and has a layer thickness of 0.1 mm. The surface treatment is produced by high-speed flame spraying. The method for producing cast parts with integrated components, which have a high surface hardness than the remaining cast part, comprises casting the integrated component simultaneously with the remaining cast part, and subjecting the integrated component to a surface treatment after the casting process. The surface treatment comprises a surface hardening with a hardness of larger than 50 harmonic related carrier (HRC) and a surface coating with a hardness of larger than 50 HRC, and has a layer thickness of 0.1 mm. The surface treatment is produced by high-speed flame spraying, and is carried out with a tungsten carbide containing metal powder with the composition of tungsten carbide-nickel-chromium-boron-silicon 67-33 (WC-NiCrBSi67-33). The cast part with the integrated component is produced from a cast iron alloy with spheroidal graphite.
Abstract (de)
Es wird ein Verfahren zur Herstellung von Gussteilen mit integrierten Bauteilen vorgeschlagen, wobei das integrierte Bauteil bereichsweise eine wesentlich höhere Oberflächenhärte als das übrige Gussteil aufweist. Das integrierte Bauteil wird gleichzeitig mit dem übrigen Gussteil gegossen und das integrierte Bauteil wird nach dem Giessvorgang einer Oberflächenbehandlung unterworfen. Die Gussteile werden als Anbaurahmen für schwere mechanisch angetriebene Maschinen mit einem integrierten Lagerbolzen verwendet.
IPC 8 full level
B22D 19/16 (2006.01)
CPC (source: EP)
B22D 19/16 (2013.01); C23C 4/02 (2013.01); C23C 4/06 (2013.01)
Citation (applicant)
- JP S5725276 A 19820210 - NISSAN MOTOR
- JP 2003221639 A 20030808 - AISIN TAKAOKA LTD
- US 3876091 A 19750408 - MACDONALD RAYMORE D
Citation (search report)
- [X] JP S5725276 A 19820210 - NISSAN MOTOR
- [X] JP 2003221639 A 20030808 - AISIN TAKAOKA LTD
- [A] DE 19649919 A1 19980604 - ACTECH GMBH ADV CASTING TECH [DE]
- [A] DE 19504949 C1 19960822 - IFU ENGINEERING UND CONSULTING [DE]
- [A] JP S6024263 A 19850206 - HITACHI METALS LTD, et al
- [A] DE 19827861 A1 19990107 - MITSUBISHI MATERIALS CORP [JP], et al
- [A] JP S60174249 A 19850907 - NIHON CEMENT
- [AD] US 3876091 A 19750408 - MACDONALD RAYMORE D
- [A] DE 10342582 A1 20041125 - HALBERG GUSS GMBH [DE], et al
- [A] R. GONZALEZ, M.A. GARCIA, I. PENUELAS, M. CADENAS, MA. DEL ROCIO FERNANDEZ, A. HERNANDEZ BATTEZ, D. FELGUEROSO: "Microstructural study of NiCrBSi coatings obtained by different processes", WEAR, no. 263, 23 August 2007 (2007-08-23), pages 619 - 624, XP002502198, ISSN: 0043-1648
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08105119 A 20080825