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ASTM A350 LF1, LF2 da LF3 Karfe Carbon/Alloy

HALAYEN JAMA'A

Ana amfani da waɗannan nau'ikan ƙarfe a matsayin ƙarfen bututun mai da kuma wajen samar da flanges na jabu. Sun dace da amfani har zuwa -20ºF (LF1,) -50ºF (LF2) da -150ºF (LF3.)

     

    HALAYEN JAMA'A

    Ana amfani da waɗannan nau'ikan ƙarfe a matsayin ƙarfen bututun mai da kuma wajen samar da flanges na jabu. Sun dace da amfani har zuwa -20ºF (LF1,) -50ºF (LF2) da -150ºF (LF3.)

    Naɗi ta Ƙa'idodi

     

    Mat. A'a.

    DAGA

    IN

    AISI

    1.5622

    14Ni6

    -

    A350

     

    BINCIKEN SINADARI

    LF1:

    C%

    Mn%

    Kuma%

    Kashi ɗaya bisa ɗari (S%)

    P%

    Cr%

    A cikin%

    Matsakaicin 0.30

    0.6/1.35

    .15/.30

    .040 mafi girma

    .035 mafi girma

    Matsakaicin 0.30

    matsakaicin 0.40

    LF2:

    C%

    Mn%

    Kuma%

    Kashi ɗaya bisa ɗari (S%)

    P%

    Cr%

    A cikin%

    Matsakaicin 0.30

    0.6/1.35

    .15/.30

    .040 mafi girma

    .035 mafi girma

    Matsakaicin 0.30

    matsakaicin 0.40

    LF3:

    C%

    Mn%

    Kuma%

    Kashi ɗaya bisa ɗari (S%)

    P%

    Cr%

    A cikin%

    0.20 mafi girma

    0.90

    .20/.35

    .040 mafi girma

    .035 mafi girma

    Matsakaicin 0.30

    3.3/3.7

     

    AIKACE-AIKACE

    Ana amfani da waɗannan ƙarfe musamman don bututun mai da bututun mai flanges ɗin da aka ƙirƙira.

    ƘIRƘIRA

    Ya kamata a yi amfani da ma'aunin LF1 da LF2 a zafin da ke tsakanin 2250-2300ºF (1230-1260ºC) kuma ba zai iya zama ba An ƙera shi a ƙasa da 1650-1700ºF (900-925ºC). The Za a ƙera matakin LF3 a kusan 2150-2200ºF (1175-1205ºC) kuma ba zai iya zama baAn ƙera shi a ƙasa da 1700ºF (925ºC).

    YIN WALDA/MAGUNGUNAN ZAFI

    Babu shakka za a ci gaba da yin gyaran zafi na ƙarfen bututun bayan walda. Tsarin waɗannan ƙarfe za a fara tantance shi ta hanyar tsarin birgima/ƙirƙira. Za a samar da bututun da kansa daga ƙarfe masu zafi, flanges da sauransu daga kayan haɗin. Tsarin walda na ainihi zai zama na musamman wajen tabbatar da dacewa da tsaron bututun da kuma aikin da zai yi nan gaba. Maganin dumamawa kafin lokaci da kuma bayan zafi suna da mahimmanci.
    Ana iya haɗa maki uku da aka lissafa a nan cikin sauƙi ta hanyar duk hanyoyin da aka gwada da kuma waɗanda aka gwada.

    INJI

    Idan aka yi amfani da kayan aiki da flanges na musamman, waɗannan suna da daraja. gwangwania yi amfani da injin kamar yadda ake buƙata, kuma ci gaba da ƙwarewa zai tantance ko injin ya fi kyau a yi shi a kan tsarin da aka ƙirƙira, ko tsarin da aka daidaita ko tsarin da aka yi amfani da shi a cikin annealed. A kowane hali, saboda mahimmancin yanayin ƙarshen amfani, ya kamata a ɗauki shawara daga kamfanin maganin zafi da aka sani..

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