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焊材厂对双向不锈钢的培训.pdf

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    焊材厂 双向 不锈钢 培训
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    1 | 06/2019 | MIS Super Duplex voestalpine Bhler Welding Welding of Duplex Stainless Steel Bernd Hoberg Globale Anwendungstechnik voestalpine Bhler Welding Group GmbH, Dsseldorf 2 | 06/2019 | MIS Super Duplex Introduction Corrosion Testing Conclusion Welding of Root Runs Welding Procedures vs. Tendency to Pore Formation 1 2 3 4 5 Content 3 | 06/2019 | MIS Super Duplex INTRODUCTION 4 | 06/2019 | MIS Super Duplex DSS 2205 type UNS 32205 SDSS 2507 type UNS 32760 increasing corrosivity of waters 904L - X2CrNiMoCu20-25 317L - X2CrNiMo18-15-4 316L - X2CrNiMo17-12-2 304L - X2CrNi19-11 6%Mo Super Austenitic Stainless Steels 926L - X1NiCrMoCuN25-20-7 Titan: grade 2, grade 12 Nickel Alloys: Alloy 625, C-Alloys, e.g. 59, C-276, C 22 etc. Stainless Steels”: Austenitic Stainless Steels Material Selection for Seawater Environment resistance against seawater at ambient temperature 5 | 06/2019 | MIS Super Duplex ASTM A 923-8 corr. test temp.* BM + WM:22C/24 h CVN -40C BM, HAZ: 54J, WM 34 J *) detection of intermetallics e.g. sigma phase NACE MR 0175-2003 PREN Cr%+3,3(Mo+0,5W)+16N% 30 PREN 40: ferrite 35-65% H2S: 10kPA Max. working temp 232C Cast and wrought products ASTM G 48 A 2003 Methode A: 6 mass-% FeCl3 CPT: 25C/24 h WM + BM NORSOK MDS 42(rev.5) UNS S31803, UNS S 32205 Ferrite 35 - 65% WM Rp0,2 450, Rm 620MPa, A 25% CVN -46C 45J CPT G 48 A: 25C/24h WM 4g/m2 WM NORSOK M-601(2016) Ferrite 30 to 70% WM CVN -46C: 27 J WM+FL Hardness max 36 HRC (DIN EN ISO15156-3) 22Cr - DSS Interactive Requirements 6 | 06/2019 | MIS Super Duplex NACE MR 0175-2003 PREN Cr%+3,3(Mo+0,5W)+16N% 40 550, Rm 795MPa, A 25% CVN -46C 45J CPT: ASTM G48 A: 50C/24h no pits, WM/BM ASTM G 48 A + E 2003 A: 6 mass-% FeCl3 E: 6 mass-% FeCl3 +1%HCl CPT: BM and WM Start temp 20C / 24h T: 5C / 24 h NORSOK M-601(2016) Ferrite 30 to 70% WM CVN -46C: 27 J WM + FL CPT ASTM G 48 A: 35C/24h WM no pits, 41) Welding Consumables: Thermanit 22/09, Thermanit 25/09 CuT CN 22/9-IG CN 25/9 CuT-IG 13 | 06/2019 | MIS Super Duplex Spray arc Fine droplets without short circuit Shielding gas: Ar and mixed gases e.g. Ar/He/CO2 - bal/30/0,25 Welding position: PA, PB Typical parameters: I = 270 A, U = 29 V 1.2 mm , Vwire 8 m/min Pulsed arc Droplet segregation through pinch effect Pulse time, voltage, current and pulse background must be adjusted Shielding gas: Ar and mixed gases s.o. Base metals: CRA, nickel alloys, aluminum Welding position: PA, PB, (PF) wire electrode magnetic field reduction of area Influence of the Shielding Gas on Droplet Transfer and Arc Mode 14 | 06/2019 | MIS Super Duplex unalloyed structural steel (minor requirement) CRA, Super Duplex Nickel alloys low-medium alloy steels CRA, Duplex Aluminium Shielding Gases for GMA Welding acc. DIN EN ISO 14175 Symbol reducinginert reactive CO2O2ArHeH2N2 1100 2100 3Bal.0,5 95 10,5 5 Bal. a0,5 5 20,5 5Bal. a 30,5 3Bal. a 0 5 15 Bal. a 115 25Bal. a 23 10 Bal. a 30,5 53 10 Bal. a 125 50 Bal. a 210 15 Bal. a 325 50 2 10 Bal. a 1100 2Rest0,5 30 1Bal. a0,5 15 2Bal. a15 50 1100 2Bal. a0,5 5 3Bal. a5 50 0 1100 Z N M2 M3 C R Further subgroups are listed in DIN EN ISO 14175 Gas mixtures with components, which are not mentioned in this table or gas mixtures with compositions out of the specified range. a) For this classification argon can be partially substituted by helium M1 Shielding gas components in volume % oxidizinginertmain group sub group I 15 | 06/2019 | MIS Super Duplex Pulsed arc Spray arc SDSS vs. 300 Stainless Steel Series Fluidity and arc stability lower than standard austenitic fillers e.g. 308L, 316L etc.(spatter formation) Best results with synergic puls GMAW Recommended shielding gas: Ar + 20-30% He + max.0,5 CO2 e.g. Cronigon He 30C High nitrogen content of base materials increases sensitivity to porosity: wrong joint preparation increases risk high degree of fusion & trapping of nitrogen gas in solidifying metal weld in a gap, root opening 16 | 06/2019 | MIS Super Duplex FOREHAND NEUTRAL BACKHAND Influence of Torch Position on Weld Shape 17 | 06/2019 | MIS Super Duplex Weld deposit: 2 lagers, 5 runs with clearly reduced pore formation Chg. 100073 Heat No. 100419 Review of the early 2010er years Pore Formation during GMAW for SDSS 18 | 06/2019 | MIS Super Duplex GMAW: Thermanit 25/09 CuT, Cronigon HE 30 C BM 1.4501 / UNS S 32760 t = 15 mm, single V- butt weld X-Ray acc. DIN EN ISO 10675-1 = acceptable 1 Super Duplex GMA Welding State 2019 19 | 06/2019 | MIS Super Duplex 266 279 272 287 272 277262 276253265 287 x271269 293273261 291283279 296280271 292296294 276281 x285 274297292 x 284292279 298292296 1 mm3081 mm 2801 mm289 281293289 272304303 x 264295307 277302296 278292295 285296 x275 277278273 282275273 295272274 277270253 285 x269269 279262266 280264 276 284 286 274 265 Gutsche Seite 1 von 1 voestalpine Bhler Welding Germany GmbH Hrteprfung nach 6507-1 Charge: Charge: Kroker Bild CD 07.05.2019 10 Datum:Pbz.: 582242 ZNYD 104062 Auftraggeber: x: Schmelzlinie Prfer: MAG / Thermanit 25/09 CuT / Ar+30%He+0,25%CO2
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