WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Options
Query Language
Stem
Sort by:
List Length
Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018011377) METHOD FOR THE IN-LINE MANUFACTURING OF STEEL TUBE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/011377 International Application No.: PCT/EP2017/067780
Publication Date: 18.01.2018 International Filing Date: 13.07.2017
IPC:
B21C 37/08 (2006.01) ,C21D 8/10 (2006.01) ,C21D 9/08 (2006.01) ,C21D 9/50 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
C
MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
37
Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
06
of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
08
Making tubes with welded or soldered seams
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
8
Modifying the physical properties by deformation combined with, or followed by, heat treatment
10
during manufacturing of tubular bodies
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
08
for tubular bodies or pipes
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
Applicants: TATA STEEL NEDERLAND TUBES BV[NL/NL]; Souvereinstraat 35 4903 RH Oosterhout, NL
Inventors: CELOTTO, Steven; NL
PAULUSSEN, Gerardus, Jacobus; NL
KAMP, Arjen; NL
FLIPSEN, Robertus; NL
Agent: BLAUW, Frans, Gerard; NL
Priority Data:
16179417.714.07.2016EP
Title (EN) METHOD FOR THE IN-LINE MANUFACTURING OF STEEL TUBE
(FR) PROCÉDÉ DE FABRICATION EN LIGNE DE TUBE EN ACIER
Abstract:
(EN) The invention relates to a method for manufacturing of steel tube from a long steel strip, comprising providing a length of steel strip material to the process, forming a tube of the steel strip material, welding the formed tube in longitudinal direction, giving the tube a heat treatment wherein the mentioned steps are performed in one continuous in-line manufacturing line and the heat treatment comprises a heating regime such that in successive cross-sections of the tube a microstructure is achieved which holds at least 50 vol% austenite and a cooling trajectory to re-introduce ferrite, and/or bainite in desired volume fractions.
(FR) La présente invention concerne un procédé de fabrication d’un tube en acier à partir d’une longue bande d’acier, comprenant la fourniture d’une longueur de matériau de bande d’acier au processus, la formation d’un tube du matériau de bande d’acier, le soudage du tube formé dans la direction longitudinale, l’application au tube d’un traitement thermique, les étapes mentionnées étant conduites dans une ligne de fabrication en ligne continue et le traitement thermique comprenant un régime de chauffage tel que, dans des sections transversales successives du tube, une microstructure est obtenue, laquelle contient au moins 50 % en volume d’austénite et une trajectoire de refroidissement pour réintroduire de la ferrite et/ou de la bainite dans des fractions volumiques souhaitées.
front page image
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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: English (EN)
Filing Language: English (EN)