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Machine translation
1. (WO2005068113) METHOD OF SINTERING BODY HAVING HIGH HARDNESS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/068113    International Application No.:    PCT/KR2005/000079
Publication Date: 28.07.2005 International Filing Date: 11.01.2005
IPC:
B22F 7/02 (2006.01)
Applicants: ILJIN DIAMOND CO., LTD. [KR/KR]; 50-1, Dohwa-dong, Mapo-gu, Seoul 121-040 (KR) (For All Designated States Except US).
OH, Jeang-Ook [KR/KR]; (KR) (For US Only).
SHIN, Taek-Jung [KR/KR]; (KR) (For US Only).
OH, Kyu-Hwan [KR/KR]; (KR) (For US Only).
KIM, Dong-Ik [KR/KR]; (KR) (For US Only)
Inventors: OH, Jeang-Ook; (KR).
SHIN, Taek-Jung; (KR).
OH, Kyu-Hwan; (KR).
KIM, Dong-Ik; (KR)
Agent: WONJON PATENT FIRM; 8th Floor, Poonglim Bldg., 823-1, Yeoksam-dong, Gangnam-gu, Seoul 135-784 (KR)
Priority Data:
10-2004-0002148 13.01.2004 KR
Title (EN) METHOD OF SINTERING BODY HAVING HIGH HARDNESS
(FR) PROCEDE POUR FRITTER UN ELEMENT DE DURETE ELEVEE
Abstract: front page image
(EN)Disclosed is a method of producing a sintered body with high hardness, in which a hard layer of polycrystalline diamond (PCD) is formed on an ultra-hard substrate, which comprises: a step of preparing a raw material powder for sintering, which comprises diamond powder, a step of positioning the raw material powder for sintering onto a WC/Co type ultra-hard substrate; and a step of forming a PCD layer having high hardness on said ultra-hard substrate by charging the ultra-hard substrate with the raw material powder for sintering into a crucible made of a sintered body comprised of: at least one material selected from a group consisting of catalyst transition metals from Period of 4-6 of Group 4A-6A of Periodic table of elements and carbides, nitrides and carbo-nitrides thereof and each solid solution thereof; and at least one binding material selected from Fe, Co and Ni, and then carrying out sintering under the conditions of high temperature and high pressure, where diamond is stable. According to the present invention, it becomes possible to prevent abnormal particle growth of diamond in a PCD layer of a sintered body having high hardness, without adding a powder of a binding material comprising additional materials for inhibiting particle growth, therefore, it is now possible to prepare a sintered body having high hardness, which has excellent machinability and processability.
(FR)L'invention concerne un procédé pour réaliser un élément fritté de grande dureté, selon lequel une couche dure de diamant polycristallin (PCD) est formée sur un substrat dur à base de WC-Co. Selon ce procédé, la matière du creuset pour le frittage est sélectionnée dans un groupe comprenant des métaux de transition catalyseurs des groupes 4A-6A du tableau périodique, des carbures, des nitrures et des carbonitrures de ceux-ci, et toutes les solutions solides de ceux-ci. Selon l'invention, un ou plusieurs liants sont également sélectionnés dans un groupe constitué par Fe, Co et Ni.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: Korean (KO)