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Machine translation
1. (WO2016105048) METHOD FOR FORMING GROOVE IN SURFACE OF STEEL PLATE, AND APPARATUS THEREFOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/105048    International Application No.:    PCT/KR2015/014019
Publication Date: 30.06.2016 International Filing Date: 21.12.2015
IPC:
B23K 26/364 (2014.01), B23K 26/064 (2014.01)
Applicants: POSCO [KR/KR]; (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si Gyeongsangbuk-do 37859 (KR)
Inventors: KWON, Oh-Yeoul; (KR).
PARK, Hyun-Chul; (KR).
KIM, Jae-Kyoum; (KR).
LEE, Won-Gul; (KR)
Agent: YOU ME PATENT AND LAW FIRM; 115 Teheran-ro Gangnam-gu Seoul 06134 (KR)
Priority Data:
10-2014-0188976 24.12.2014 KR
Title (EN) METHOD FOR FORMING GROOVE IN SURFACE OF STEEL PLATE, AND APPARATUS THEREFOR
(FR) PROCÉDÉ DE FORMATION D'UNE RAINURE DANS UNE SURFACE D'UNE PLAQUE D'ACIER ET APPAREIL ASSOCIÉ
(KO) 강판 표면 홈 형성 방법 및 그 장치
Abstract: front page image
(EN)A method for forming a groove in a surface of a steel plate and an apparatus therefor are provided. The present invention is configured such that in case laser beams are radiated to a scanning mirror from multiple laser oscillators and then radiated to a surface of a steel plate after passing through the scanning mirror, in order to form, in the surface of the steel plate, a groove having a depth of at most 10% of the thickness of the steel plate by means of laser radiation, one scanning mirror is shared by two or more laser beams, thereby minimizing the influence of heat on the part with the groove at a high line speed of at least 20 mpm and thus having an improved core loss characteristic before(/after) heat treatment.
(FR)L'invention concerne un procédé de formation d'une rainure dans une surface d'une plaque d'acier et un appareil associé. La présente invention est configurée de sorte que, dans un cas où des faisceaux laser sont rayonnés en direction d'un miroir de balayage à partir de multiples oscillateurs laser puis rayonnés en direction d'une surface d'une plaque d'acier après un passage à travers le miroir de balayage, afin de former, dans la surface de la plaque d'acier, une rainure présentant une profondeur de 10% maximum de l'épaisseur de la plaque d'acier au moyen d'un rayonnement laser, un miroir de balayage soit partagé par deux ou plus de deux faisceaux laser, ce qui permet de réduire au minimum l'influence de la chaleur sur la partie comprenant la rainure à une vitesse élevée d'au moins 20 mpm et de présenter ainsi une meilleure caractéristique de perte de noyau avant (/après) un traitement thermique.
(KO)강판 표면 홈 형성 방법 및 그 장치를 제공한다. 본 발명에 따르면, 레이저 조사로 강판 두께의 10% 이하의 홈 깊이를 강판 표면에 형성하기 위하여, 다수개의 레이저 발진기로부터 레이저 빔이 주사 미러에 조사되고 상기 주사 미러를 통과한 후 상기 강판 표면에 조사되는 경우에 1개의 주사 미러를 2개 이상의 레이저 빔과 공유함으로써 20mpm 이상의 고속의 라인 스피드(line speed)에서 홈 부의 열영향을 최소화시켜 열처리 전(후) 철손 개선 특성을 갖는다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)