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Wyszukujesz frazę "cored wires" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Double Fillet Welding of Carbon Steel T-Joint by Double Channel Shielding Gas Metal Arc Welding Method Using Metal Cored Wire
    Autorzy:
    Mert, T.
    Gultekin, N.
    Karaaslan, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/352453.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    double channel torch
    low carbon steel
    metal cored wires
    T-joint
    microstructure
    Opis:
    Low carbon steel material and T-joints are frequently used in ship building and steel constructions. Advantages such as high deposition rates, high quality and smooth weld metals and easy automation make cored wires preferable in these industries. In this study, low carbon steel materials with web and flange thicknesses of 6 mm, 8 mm and 10 mm were welded with conventional GMAW and double channel shielding gas metal arc welding (DMAG) method to form double fillet T-joints using metal cored wire. The difference between these two methods were characterized by measurements of mean welding parameters, Vickers hardness profiles, weld bead and HAZ geometry of the joints and thermal camera temperature measurements. When weld bead and HAZ geometries are focused, it was seen filler metal molten area increased and base metal molten area decreased in DMAG of low carbon steel. When compared with traditional GMAW, finer and acicular structures in weld metal and more homogenous and smaller grains in HAZ are obtained with double channel shielding gas metal arc welding.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 2A; 947-954
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Emission of Dust and Gases in Tubular Cored Wire Welding of Steel
    Autorzy:
    Matusiak, J
    Rams, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/90068.pdf
    Data publikacji:
    2003
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    arc welding
    tubular cored wires
    emission of dust and gases
    health hazard
    zanieczyszczenie atmosfery
    spawanie i cięcie łukowe
    zagrożenia chemiczne
    zagrożenia zdrowia
    pyły
    gazy
    Opis:
    The emission of dusts and gases, which are generated during tubular cored wire welding and which are hazardous to health and the environment, were studied. Tests included various kinds of tubular electrode wires used for welding steel, that is, rutile flux cored wires, basic flux cored wires, and metal cored wires for welding unalloyed, low-alloy, and high-alloy steels as well as self shielded flux cored wires used for welding low-alloy steels. The research results make it possible to assess the influence of the type of wire and welding conditions on the emission volume and to compare chemical hazards generated during tubular cored wire welding with those typical for other arc welding processes.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2003, 9, 3; 333-350
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improvement of abrasion resistance of production equipment wear parts by hardfacing with flux-cored wires containing boron carbide/metal powder reaction mixtures
    Autorzy:
    Ivanov, Oleksandr
    Prysyazhnyuk, Pavlo
    Lutsak, Dmytro
    Matviienkiv, Oleh
    Aulin, Vicktor
    Powiązania:
    https://bibliotekanauki.pl/articles/410057.pdf
    Data publikacji:
    2020
    Wydawca:
    STE GROUP
    Tematy:
    flux cored electrodes
    abrasion resistance
    refractory borides
    solid solutions
    high specific loads
    Opis:
    In this work was established that serial traditional hardfacing materials based on the Fe-Cr-C system are not effective for improvement of abrasion resistance of elements of equipment for production of bricks, solid fuel briquettes and for restoration of augers, due to the fact that this equipment works at significant specific and cyclic loads. Features of the coarse-grained structure of Fe-Cr-C based coatings leads to intensive abrasive wear. The aim of this study was to increase a durability of that equipment by using of flux cored electrodes with reaction components of Ti, Cr, Mo, B4C and their combinations to provide synthesis, which leads to finegrained structure of refractory borides and carbides and their solid solutions with increased hardness. Structure of the hardfacing coatings were investigated by method of metallography, scanning electron microscopy (SEM), electron backscatter diffraction (BSD) mode and energy dispersive X-ray spectroscopy (EDS). Temperature dependences of equilibrium phase amount of the hardfacing materials were calculated by the CALPHAD technique, using JMatPro software. It was investigated that the offered materials are characterized by higher wear resistance at high specific and cyclic loads in comparison with serial production high-chromium hardfacing materials (Lastek, ESAB, Paton IEW). It was established that the abrasion wear resistance at high specific and cyclic loads depends mostly of formation of the structure of hardfacing material, and not the hardness. Also, using of powders of pure metals and their combination as reaction mixture for FCAW leads to fine structure which contains of refractory borides and carbides and their solid solutions.
    Źródło:
    Management Systems in Production Engineering; 2020, 3 (28); 178-183
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using cored wires injection 2PE-9 method in the production of ferritic Si-Mo ductile iron castings
    Autorzy:
    Guzik, E.
    Wierzchowski, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/380316.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    drut proszkowy
    żeliwo sferoidalne
    zaprawa modyfikująca
    właściwości mechaniczne
    odzysk magnezu
    drum ladle
    cored wires injection 2PE-9 method
    Si-Mo ductile iron
    Fesi + Mg nodulariser mixture
    inoculant master alloy
    ferritic matrix
    mechanical properties
    magnesium recovery
    vertical ladle
    Opis:
    The results of studies on the use of modern two cored wires injection method for production of ferritic nodular cast iron (ductile iron) with use of unique implementation of drum ladle as a treatment / transport and casting ladle instead vertical treatment ladle was described. The injection of length of [...] 9mm wires, cored: in FeSi + Mg nodulariser mixture and inoculant master alloy is a treatment method which can be used to produce iron melted in coreless induction furnace. This paper describes the results and analysis of using this method for optimal production of ductile iron under specific industrial conditions. It means, that length of nodulariser wire plus treatment and pouring temperatures were optimized. In this case, was taken ductile iron with material designation: EN-GJS-SiMo40-6 Grade according EN 16124:2010 E. Microstructure of great number of trials was controlled on internally used sample which has been correlated with standard sample before. The paper presents typical ferritic metallic matrix and nodular graphite. Additionally, mechanical properties were checked in some experiments. Mean values of magnesium recovery and cost of this new method from optimized process parameters were calculated as well.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 4; 53-56
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary studies of seamless flux-cored wires stored in extreme conditions
    Badania wstępne bezszwowych drutów proszkowych przechowywanych w ekstremalnych warunkach
    Autorzy:
    Fydrych, D.
    Świerczyńska, A.
    Landowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/264247.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    FCAW
    cored wires
    diffusible hydrogen
    storage conditions
    druty proszkowe
    wodór dyfundujący
    warunki przechowywania
    Opis:
    In this paper, we describe the preliminary experimental studies of flux-cored wires moisturized under controlled conditions. Three seamless wires of different grades have been placed in an environmental chamber and moisturized in extremely adverse conditions (temperature T = 60°C, relative humidity H = 90%) for 240 hours. During this time, measurements of weight gain as well as surface observations of the wires have been carried out. Also, the amount of diffusible hydrogen in deposited metal was determined by the mercury method for one of the moisturized wires. A significant increase in the level of hydrogen was observed (from H5 to H10). Further research will aim to determine the effect of storage conditions on the hydrogenation of deposited metal and quality of flux-cored wires.
    Praca dotyczy badań drutów proszkowych nawilżanych w kontrolowanych warunkach. Trzy gatunki drutów bezszwowych umieszczono w komorze klimatycznej i nawilżano w niekorzystnych warunkach (temperatura T = 60°C, wilgotność względna H = 90%) przez 240 h. Badania polegały na pomiarze nasiąkliwości i ocenie stanu powierzchni badanych drutów. Ponadto dla jednego z nawilżanych drutów oznaczono metodą rtęciową zawartość wodoru dyfundującego w stopiwie. Stwierdzono znaczny wzrost poziomu wodoru (z H5 do H10). Dalsze badania powinny zmierzać do ilościowego ustalenia wpływu warunków przechowywania na nawodorowanie stopiwa i jakość badanych drutów.
    Źródło:
    Metallurgy and Foundry Engineering; 2014, 40, 4; 211-220
    1230-2325
    2300-8377
    Pojawia się w:
    Metallurgy and Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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