Qualification of brazing procedure for furnace brazing of austenitic steel according to requirements of the ASME BPVC section IX
Main Article Content
Abstract
The article presents the procedure for qualifying brazing technology in a vacuum furnace on the example of stainless steel elements joined with copper filler material from the F-No group. 105, in accordance with the ASME Sec. IX, part QB (ASME Boiler and Pressure Vessel Code. Qualification Standard for Welding, Brazing and Fusing; Procedures; Welders; Brazers; and Welding, Brazing and Fusing Operators). The essential variables of the furnace brazing process are discussed in relation to the requirements of the protocol of qualified PQR (Procedure Qualification Record) and BPS (Brazing Procedure Specification) in accordance with the ASME Sec. IX. The requirements for joints by the calculation code ASME Sec. VIII div.1 (Rules of Construction of Pressure Vessels), related to the working temperature of the designed device have also been taken into account. The paper presents examples of brazed joints made and their properties (strength, fill level of the clearance) obtained on the basis of the carried out tests. Attention was paid to the technological aspects during the performance of brazed joints using vacuum furnaces.
Downloads
Article Details
Creative Commons CC BY 4.0 https://creativecommons.org/licenses/by/4.0/
Welding Technology Review (WTR) articles are published open access under a CC BY licence (Creative Commons Attribution 4.0 International licence). The CC BY licence is the most open licence available and considered the industry 'gold standard' for open access; it is also preferred by many funders. This licence allows readers to copy and redistribute the material in any medium or format, and to alter, transform, or build upon the material, including for commercial use, providing the original author is credited.
References
Li Y., Zhang X., Parfitt D., Jones S., Chen B., Characterisation of microstructure, defect and high-cycle-fatigue behaviour in a stainless steel joint processed by brazing. Materials Characterization, 2019, Vol. 151, 542-552.
Tomków J., Haras J., Types of surface impurities versus the quality of brazed joints. Biuletyn Instytutu Spawalnictwa w Gliwicach, 2018, Vol. 62(4), 53-58.
Heo H., Kim G., Kim D.Y., Moon C., Kim K.C., Jung K., Kang, C.Y., Microstructure and mechanical properties of Ni foam/stainless steel joint brazed using Ni-based alloy. Materials Science and Engineering: A, 2019, Vol. 740-741, 63-70.
Wang N., Wang D.P., Yang Z.W., Wang Y., Liu X.G., Zirconia ceramic and Nb joints brazed with Mo-particle-reinforced Ag-Cu-Ti composite fillers: interfacial microstructure and formation mechanism. Ceramics Interna-tional, 2017, Vol. 43(13), 9636-9643.
Zhu W., Zhang H., Guo C., Liu Y., Ran X., Wetting and brazing characteristic of high nitrogen austenitic stain-less steel and 316L austenitic stainless steel by AgCu filler. Vacuum, 2019, 166, 97-106.
Piwowarczyk T., Mirski Z., Winiowski A., Drzeniek H., Dokumentowanie procesu lutowania oraz egzaminowanie lutowaczy i operatorów lutowania twardego wg PN-EN ISO 13585:2012. Welding Technology Review, 2013, Vol. 85(9), 55-63.
Mirski Z., Pabian J., Modern trends in production of brazed heat exchangers for automotive industry. Welding Technology Review, 2017, Vol. 89(8), 5-12.
Xia Y., Dong H., Hao X., Li P., Li S., Vacuum brazing of Ti6Al4V alloy to 316L stainless steel using a Ti-Cu-based amorphous filler metal. Journal of Materials Processing Technology, 2019, 269, 35-44.
Shi J.M., Zhang L.X., Liu H., Sun Z., Feng J.C., Vacuum brazing of SiBCN ceramic and TC4 alloy using TiB2 re-inforced AgTi composite filler. Vacuum, 2018, Vol. 156, 108-114.
Chen Z.B., Bian H., Hu S.P., Song X.G., Niu C.N., Duan X.K., Cao J., Feng, J.C., Surface modification on wetting and vacuum brazing behavior of graphite using AgCu filler metal. Surface and Coatings Technology, 2018, Vol. 348, 104-110.
Bielanik J., Lutowanie próżniowe elementów kół wirnikowych turbosprężarki z martenzytycznej stali typu 13-4, Politechnika Warszawska, Laboratorium Materiałoznawstwa Wydział Budownictwa, Mechaniki i Petrochemii w Płocku, PL0400064.
Kowalewski J., Szczurek J., Issues in Vacuum Brazing,
BRO-0010.4 An Introduction to Brazing. Issue 4,
Skrzypek S.J., Goły M., Korzeń T., Dul I., Babul T., Choroszynski M., Analiza fazowa złączy superstopów niklu ze stalą austenityczną lutowanych próżniowo. Welding Technology Review, 2013, Vol. 85(8), 41-44.
www.secespol.com
Świerczyńska A., Rogalski G., Fydrych D. Badania struktury i właściwości spawanych austenitycznych rur wymienników ciepła. Welding Technology Review, 2010, Vol. 82(6), 11-16.
Rogalski G., Świerczyńska A., Fydrych D., Landowski, M., The influence of solution annealing temperature on the properties of Lean Duplex 2101 welded joints in tubes. Welding Technology Review, 2019, Vol. 91(4), 49-59.
Guo D., Kwok C.T., Chan S.L.I., Spindle speed in friction surfacing of 316L stainless steelHow it affects the mi-crostructure, hardness and pitting corrosion resistance. Surface and Coatings Technology, 2019, Vol. 361, 324-341.
Kangazian J., Shamanian M., Micro-texture and corrosion behavior of dissimilar joints of UNS S32750 stain-less steel/UNS N08825 Ni-based superalloy. Materials Characterization, 2019, 155, 109802.
Josz K., ASME standards as a key to new markets. Quarterly TÃœV NORD Polska, 2012, 4.