• I-imeyili: richard@czlxg.com
  • I-Whatsapp: 8615822968134
    • English

    Umhlahlandlela Ophelele we-SAWH weThubhu: Ipayipi Lensimbi le-A252 Lebanga 1 Lokusetshenziswa Kukawoyela Negesi

    Umhlahlandlela Ophelele we-SAWH weThubhu: Ipayipi Lensimbi le-A252 Lebanga 1 Lokusetshenziswa Kukawoyela Negesi Isithombe Esivelele
    • Umhlahlandlela Ophelele we-SAWH weThubhu: Ipayipi Lensimbi le-A252 Lebanga 1 Lokusetshenziswa Kukawoyela Negesi

    Incazelo emfushane:

    Ipayipi le-SAWH (Submerged Arc Welded Spiral) lisetshenziswa kabanzi embonini kawoyela negesi ngenxa yamandla alo aphezulu nokuqina kwalo. Kule bhulogi, sizohlola izici ezibalulekile nezinzuzo zaloIpayipi lensimbi le-A252 Grade 1 evame ukusetshenziswa ekusetshenzisweni kukawoyela negesi. Okokugcina, uzoba nokuqonda okuphelele kwamapayipi e-SAWH kanye nokubaluleka kwawo embonini.


    Imininingwane Yomkhiqizo

    Amathegi Omkhiqizo

    1. Qonda ipayipi le-SAWH:

    Amapayipi e-SAWHakhiqizwa ngamapuleti ensimbi ahlelwe ngendlela ejikelezayo. Amashidi akhiwa abe amashubhu futhi ahlanganiswe kusetshenziswa inqubo yokushisela ye-arc engaphansi kwamanzi. Le ndlela yokushisela iqinisekisa ukushisela okuqinile, okuqhubekayo kulo lonke ubude bepayipi, okwenza imelane kakhulu nezici zokucindezeleka zangaphandle ezifana nokuthinteka kanye nokucindezela. Lawa mapayipi aziwa ngomthamo wawo okhethekile wokuthwala umthwalo kanye nokuqina kwesakhiwo, okwenza abe afanele ukuthutha uwoyela negesi.

    2. Ipayipi lensimbi lebanga lokuqala le-A252:

    I-A252 GRADE 1 iyincazelo yepayipi lensimbi yesakhiwo elakhelwe ngqo ukusetshenziswa kwengcindezi. Lawa mapayipi akhiqizwa ngensimbi ye-A252, enezakhiwo ezinhle kakhulu zemishini kanye namandla aphezulu okunamathela. Ipayipi lensimbi ye-A252 GRADE 1 lisetshenziswa kabanzi ngenxa yekhono lalo lokubekezelela ukucindezeleka okuphezulu nokumelana nokugqwala kanye nokuguquka ezindaweni ezinzima zikawoyela negesi.

    Impahla Yomshini

    ibanga lensimbi

    amandla amancane okukhiqiza
    I-Mpa

    Amandla okudonsa

    Ukwandiswa okuncane
    %

    Amandla amancane omthelela
    J

    Ubukhulu obucacisiwe
    mm

    Ubukhulu obucacisiwe
    mm

    Ubukhulu obucacisiwe
    mm

    ekushiseni kokuhlolwa kwe-
     

    16

    ＞16≤40

    ＜3

    ≥3≤40

    		 ≤40

    -20℃

    0℃

    20℃
    S235JRH

    235

    225

    360-510

    360-510

    24

    -

    -

    27
    S275J0H

    275

    265

    430-580

    410-560

    20

    -

    27

    -
    S275J2H

    27

    -

    -
    S355J0H

    365

    345

    510-680

    470-630

    20

    -

    27

    -
    S355J2H

    27

    -

    -
    S355K2H

    40

    -

    -

    3. Izinzuzo zepayipi lensimbi lebanga lokuqala le-A252:

    a) Amandla Nokuqina:Ipayipi lensimbi le-A252 GRADE 1iqinile futhi ihlala isikhathi eside, ingamelana nemithwalo esindayo futhi ifanele izinhlelo zokudlulisa uwoyela negesi. Amandla ayo aphezulu okudonsa aqinisekisa ukuqina kwesikhathi eside futhi anciphisa izidingo zokugcinwa.

    b) Ukumelana nokugqwala: Amapayipi kawoyela negesi avame ukugqwala ngenxa yezici zemvelo ezinzima. Ipayipi lensimbi le-A252 GRADE 1 linesimbozo esengeziwe esingamelana nokugqwala, njenge-fused-bonded epoxy (FBE), ukuze kuthuthukiswe ukuqina kwayo futhi kwandiswe isikhathi sayo sokusebenza.

    c) Ukuguquguquka: Amapayipi e-SAWH angakhiqizwa ngobubanzi nobude obuhlukahlukene ukuze kuhlangatshezwane nezidingo ezithile zephrojekthi. Lokhu kuguquguquka kwenza kube lula ukufakwa ngaphandle kwesidingo samajoyinti amaningi, kunciphisa ingozi yokuvuza.

    d) Isebenza kahle: Ipayipi lensimbi le-A252 Grade 1 linikeza ikhambi elisebenza kahle lamapayipi kawoyela negesi. Ukuphila kwawo isikhathi eside kanye nezidingo zokulungisa eziphansi kunciphisa izindleko zokusebenza ngokuhamba kwesikhathi.

    Ipayipi Lomugqa Wamanzi Ongaphansi Komhlaba

    Ukwakheka Kwamakhemikhali

    Ibanga lensimbi

    Uhlobo lokususa i-oxidation a

    % ngobuningi, ubuningi

    Igama lensimbi

    Inombolo yensimbi

    C

    C

    Si

    Mn

    P

    S

    Nb

    S235JRH

    1.0039

    FF

    0,17

    —

    1,40

    0,040

    0,040

    0.009

    S275J0H

    1.0149

    FF

    0,20

    —

    1,50

    0,035

    0,035

    0,009

    S275J2H

    1.0138

    FF

    0,20

    —

    1,50

    0,030

    0,030

    —

    S355J0H

    1.0547

    FF

    0,22

    0,55

    1,60

    0,035

    0,035

    0,009

    S355J2H

    1.0576

    FF

    0,22

    0,55

    1,60

    0,030

    0,030

    —

    S355K2H

    1.0512

    FF

    0,22

    0,55

    1,60

    0,030

    0,030

    —

    a. Indlela yokususa i-oxidation ichazwa kanje:

    FF: Insimbi ebulewe ngokuphelele equkethe izinto zokubopha i-nitrogen ngamanani anele ukubopha i-nitrogen etholakalayo (isb. ubuncane be-0,020% iyonke i-Al noma i-0,015% i-Al encibilikayo).

    b. Inani eliphezulu le-nitrogen alisebenzi uma ukwakheka kwamakhemikhali kubonisa okuqukethwe okungenani kwe-Al okungu-0,020% kanye nesilinganiso esincane se-Al/N esingu-2:1, noma uma kukhona ezinye izinto ezibophayo ze-N ezanele. Izinto ezibophayo ze-N kufanele ziqoshwe kuDokhumenti Yokuhlola.

    4. Ukusetshenziswa kwepayipi lensimbi lebanga lokuqala le-A252:

    Ipayipi lensimbi le-A252 Grade 1 linezinhlobo eziningi zezicelo embonini kawoyela negesi, okuhlanganisa:

    a) Amapayipi okudlulisa: asetshenziselwa ukuthutha uwoyela ongahluziwe, igesi yemvelo kanye neminye imikhiqizo kaphethiloli kusukela emasimini okukhiqiza kuya ezindaweni zokuhluza kanye nezikhungo zokusabalalisa.

    b) Ukubhoboza Kwasogwini: Amapayipi e-SAWH asetshenziswa emisebenzini yokubhoboza uwoyela negesi ogwini lolwandle. Ukumelana kwawo nokugqwala kanye namakhono awo okucindezela okuphezulu kuwenza afanelekele ukuhlola olwandle olujulile.

    c) Indawo Yokuhlanza: Amapayipi ensimbi e-A252 GRADE 1 asetshenziswa kabanzi ezindaweni zokuhlanza ukuthutha uwoyela ongahluziwe kanye nemikhiqizo kaphethiloli.

    Ipayipi le-SSAW

    Ekuphetheni:

    Amapayipi e-SAWH, ikakhulukazi amapayipi ensimbi e-A252 GRADE 1, adlala indima ebalulekileipayipi likawoyela negesiimboni. Amandla azo, ukuqina, kanye nokumelana nokugqwala kuzenza zibe ukukhetha okuthembekile kwezicelo ezahlukahlukene. Ukuqonda izinzuzo zamapayipi e-SAWH kanye nezici zawo ezithile kungasiza ekuqinisekiseni ukuthuthwa kukawoyela negesi ngempumelelo ngenkathi kunciphisa nezindleko zokulungisa kanye nokwandisa ukusebenza kahle kwephrojekthi.

  • Okwedlule:
  • Olandelayo:
    • Bhala umlayezo wakho lapha bese uwuthumela kithi

    Izigaba zemikhiqizo