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1. (WO2010116680) METHOD OF COOLING WELDED RAIL SECTION, DEVICE FOR COOLING WELDED RAIL SECTION, AND WELDED RAIL JOINT
PCT Biblio. Data
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Pub. No.:
WO/2010/116680
International Application No.:
PCT/JP2010/002303
Publication Date:
14.10.2010
International Filing Date:
30.03.2010
IPC:
C21D 9/04
(2006.01),
B23K 31/00
(2006.01),
C21D 9/50
(2006.01),
E01B 11/46
(2006.01),
B23K 101/26
(2006.01)
C
CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9
Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor
04
for rails
B
PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
31
Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/-B23K28/193
C
CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9
Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor
50
for welded joints
E
FIXED CONSTRUCTIONS
01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
B
PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
11
Rail joints
44
Non-dismountable rail joints; Welded joints
46
General methods for making gapless tracks
[IPC code unknown for ERROR IPC Code incorrect: invalid section (A=>H)!]
Applicants:
NIPPON STEEL CORPORATION
[JP/JP]; 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071 (JP)
(For All Designated States Except US)
.
KARIMINE, Kenichi
[JP/JP]; (JP)
(For US Only)
.
UEDA, Masaharu
[JP/JP]; (JP)
(For US Only)
.
IWANO, Katsuya
[JP/JP]; (JP)
(For US Only)
.
SUGIYAMA, Seiji
[JP/JP]; (JP)
(For US Only)
Inventors:
KARIMINE, Kenichi
; (JP).
UEDA, Masaharu
; (JP).
IWANO, Katsuya
; (JP).
SUGIYAMA, Seiji
; (JP)
Agent:
SHIGA, Masatake
; 1-9-2, Marunouchi, Chiyoda-ku, Tokyo 1006620 (JP)
Priority Data:
2009-081587
30.03.2009
JP
2009-175646
28.07.2009
JP
Title
(EN)
METHOD OF COOLING WELDED RAIL SECTION, DEVICE FOR COOLING WELDED RAIL SECTION, AND WELDED RAIL JOINT
(FR)
PROCÉDÉ DE REFROIDISSEMENT D'UNE SECTION DE RAILS SOUDÉS, DISPOSITIF POUR REFROIDIR UNE SECTION DE RAILS SOUDÉS ET JONCTION DE RAILS SOUDÉS
(JA)
レール溶接部の冷却方法、レール溶接部の冷却装置、及びレール溶接継手
Abstract:
(EN)
A method of cooling a welded rail section, the method comprising: a first column-section cooling step for cooling a region to be cooled of a column section of the welded rail section, the cooling being performed in at least a part of the temperature range in which the transformation from austenite to pearlite completes; a second column-section cooling step for cooling the region to be cooled of the column section after the entire column section of the welded rail section is transformed to the pearlite; a foot-section cooling step for cooling a foot section of the welded rail section; and a head-section cooling step for cooling a head section of the welded rail section. In the method, if the time period of cooling in the first column-section cooling step and the second column-section cooling step is t (min), the k-value satisfies the expression -0.1t + 0.63 ≤ k ≤ -0.1t + 2.33.
(FR)
La présente invention se rapporte à un procédé de refroidissement d'une section de rails soudés. Ledit procédé comprend : une première étape de refroidissement de la section de colonne pour refroidir une région qui doit être refroidie d'une section de colonne de la section de rails soudés, le refroidissement étant effectué dans au moins une partie de la plage de températures dans laquelle la transformation de l'austénite en perlite se termine ; une seconde étape de refroidissement de la section de colonne pour refroidir la région qui doit être refroidie de la section de colonne après que toute la section de colonne de la section de rails soudés est transformée en perlite ; une étape de refroidissement de la section de patin pour refroidir une section de patin de la section de rails soudés ; et une étape de refroidissement de la section de tête pour refroidir une section de tête de la section de rails soudés. Dans le procédé, si la période de temps de refroidissement de la première étape de refroidissement de la section de colonne et de la seconde étape de refroidissement de la section de colonne est t (min), la valeur de k satisfait l'expression -0,1t + 0,63 ≤ k ≤ -0,1t + 2,33.
(JA)
本発明は、レール溶接部における柱部冷却領域を、オーステナイトからパーライトへの変態が完了するまでの少なくとも一部の温度範囲において冷却する第1の柱部冷却工程と;前記レール溶接部における前記柱部の全体がパーライトへ変態後、前記柱部冷却領域を冷却する第2の柱部冷却工程と;前記レール溶接部における足部を冷却する足部冷却工程と;前記レール溶接部における頭部を冷却する頭部冷却工程と;を有し、前記第1の柱部冷却工程及び前記第2の柱部冷却工程の冷却時間をt(分)とすると、k値が-0.1t+0.63≦k≦-0.1t+2.33で示される式を満たすレール溶接部の冷却方法を提供する。
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, 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, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language:
Japanese (
JA
)
Filing Language:
Japanese (
JA
)