Patent SG-11201808855U-A (SG)
Title: A tube and a method of manufacturing a tube
Inventor: WICKMAN KRISTER
IPC: C22C38/32
Filed: 2016-11-14
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 26 October 2017 (26.10.2017) WIPO I PCT omit VIII mum 0 HE 101 OH HE HE Imo oimIE (10) International Publication Number WO 2017/182111 Al (51) International Patent Classification: C22C 38/00 (2006.01) C22C 38/28 (2006.01) B21C 37/12 (2006.01) C22C 38/32 (2006.01) C21D 9/08 (2006.01) B23K 9/032 (2006.01) C22C 38/06 (2006.01) B23K 101/06 (2006.01) C22C 38/22 (2006.01) (21) International Application Number: PCT/EP2016/077544 (22) International Filing Date: 14 November 2016 (14.11.2016) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 16166659.9 22 April 2016 (22.04.2016) EP (71) Applicant: SANDVIK INTELLECTUAL PROPERTY AB [SE/SE]; SE-811 81 Sandviken (SE). (72) Inventor: WICKMAN, Krister; Alvgatan 18, SE-734 36 Hallstahammar (SE). (74) Agent: SETREUS, Ellen; Sandvik Intellectual Property AB, 811 81 Sandviken (SE). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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, JP, KE, KG, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, = (54) Title: A TUBE AND A METHOD OF MANUFACTURING A TUBE (57) : A high temperature iron-chromium-aluminium (FeCrA1)1 alloy tube (1) extending along a longitudinal axis (C), wherein the tube is formed from a continuous strip (3) of a high temperature FeCrAl alloy and comprises a helical welded seam (2). The high temperature FeCrAl alloy tube is manufactured by feeding a continuous strip of the high temperature FeCrAl alloy toward a tube shaping station (4), helically winding the strip such that long edges (6, 7) of the strip abut each other and a rotating tube (1) moving forward in a direction parallel to its longitudinal axis is formed, and continuously joining said abutting long edges together in a welding process directly when the tube is formed, whereby a welded tube comprising a helical welded seam is obtained. [Continued on next page] WO 2017/182111 Al MIDEDIMOMOIDEIROIDEM311101111011MEMOIMIE UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) Published: — with international search report (Art. 21(3))