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    I-SAWH Comprehensive Guide to Tube: A252 iBanga loku-1 lombhobho wentsimbi kwizicelo ze-oyile negesi.

    I-SAWH Comprehensive Guide to Tube: A252 iBanga loku-1 lombhobho weNtsimbi we-oyile kunye neGesi yokusetyenziswa koMfanekiso oMfaniswayo
    • I-SAWH Comprehensive Guide to Tube: A252 iBanga loku-1 lombhobho wentsimbi kwizicelo ze-oyile negesi.

    Inkcazelo emfutshane:

    Umbhobho we-SAWH (Submerged Arc Welded Spiral) usetyenziswa kakhulu kwishishini leoli negesi ngenxa yamandla awo aphezulu kunye nokuqina.Kule bhlog, siza kuphonononga iimpawu eziphambili kunye neenzuzo zeI-A252 yeBanga loku-1 lombhobho wentsimbi ngokuqhelekileyo isetyenziselwa ukusetyenziswa kweoli kunye negesi.Okokugqibela, uya kuba nokuqonda okupheleleyo kwemibhobho ye-SAWH kunye nokubaluleka kwayo kwishishini.


    Iinkcukacha zeMveliso

    Iithegi zeMveliso

    1. Qonda umbhobho we-SAWH:

    imibhobho ye-SAWHzenziwe ngeepleyiti zentsimbi ezilungelelanisiweyo.Amaphepha aqulunqwa kwiibhubhu kwaye adityaniswe ngokusebenzisa inkqubo ye-arc welding ephantsi kwamanzi.Le ndlela ye-welding iqinisekisa i-weld eqinile, eqhubekayo kunye nobude bonke bombhobho, okwenza ukuba ixhathise kakhulu kwimiba yoxinzelelo lwangaphandle njengempembelelo kunye noxinzelelo.Le mibhobho iyaziwa ngomthamo wayo okhethekileyo wokuthwala imithwalo kunye nokuthembeka kolwakhiwo, nto leyo eyenza ukuba ibe yelungele ukuthutha i-oyile negesi.

    2. Umbhobho wentsimbi we-A252 grade 1:

    I-A252 GRADE 1 yinkcazo yepayipi yensimbi yesakhiwo eyenzelwe ngokukodwa izicelo zoxinzelelo.Le mibhobho yenziwe ngentsimbi ye-A252, eneempawu ezibalaseleyo zoomatshini kunye namandla aphezulu okuqina.I-A252 GRADE 1 ipayipi yensimbi isetyenziselwa ukukwazi ukumelana noxinzelelo oluphezulu kunye nokuxhathisa i-corrosion kunye ne-deformation kwiindawo ezinzima zeoli kunye negesi.

    IPropati yoomatshini

    ibakala lentsimbi

    ubuncinci amandla esivuno
    Mpa

    Tensile strength

    Ubuncinci bobude
    %

    Ubuncinci bempembelelo yamandla
    J

    Ubukhulu obucacisiweyo
    mm

    Ubukhulu obucacisiweyo
    mm

    Ubukhulu obucacisiweyo
    mm

    kuvavanyo lobushushu be
     

    ＜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. Izinto eziluncedo ze-A252 grade 1 pipe yentsimbi:

    a) Ukomelela kunye noKuhlala ixesha elide:I-A252 GRADE 1 ipayipi yentsimbiyomelele kwaye yomelele, inokumelana nemithwalo enzima kwaye ifanelekile kwiinkqubo zokuhambisa ioli kunye negesi.Amandla abo aphezulu aqinisekisa ukuqina kwexesha elide kwaye anciphisa iimfuno zokugcinwa.

    b) Ukumelana nokubola: Imibhobho ye-oyile nerhasi ithanda ukudleka ngenxa yemeko erhabaxa.Umbhobho wentsimbi we-A252 IBANGA LOKU-1 ubonisa enye into eyongezelelweyo ekwaziyo ukumelana nomhlwa, njenge-epoxy edityanisiweyo (i-FBE), ukomeleza ukuqina kwayo nokwandisa ubomi bayo benkonzo.

    c) Ukuguquguquka: Imibhobho ye-SAWH inokuveliswa kwiindidi zeedayamitha kunye nobude ukuhlangabezana neemfuno ezithile zeprojekthi.Olu bhetyebhetye luququzelela ukufakwa ngaphandle kwesidingo samalungu amaninzi, ukunciphisa umngcipheko wokuvuza.

    d) Ixabiso eliphantsi: I-A252 yeBanga loku-1 lombhobho wensimbi ibonelela ngesisombululo esinexabiso eliphantsi kwimibhobho yeoli negesi.Ubomi babo benkonzo ende kunye neemfuno zokugcinwa okuphantsi zinciphisa iindleko zokusebenza ngexesha.

    Umbhobho woMda waManzi angaphantsi komhlaba

    Ukuqulunqwa kwemichiza

    Ibakala Steel

    Uhlobo lwe-de-oxidation a

    % ngobunzima, ubukhulu

    Igama lentsimbi

    Inombolo yentsimbi

    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 ye-deoxidation yonyulwa ngolu hlobo lulandelayo:

    FF: Intsimbi ebulewe ngokupheleleyo equlethe izinto ezibophelelayo zenitrogen ngokwezixa ezaneleyo zokubopha initrogen ekhoyo (umz. min. 0,020 % iyonke iAl okanye i-0,015 % enyibilikayo iAl).

    b.Ixabiso eliphezulu le-nitrogen alisebenzi ukuba ukubunjwa kweekhemikhali kubonisa ubuncinane be-Al umxholo we-0,020 % kunye nomlinganiselo we-Al/N ubuncinane we-2: 1, okanye ukuba kukho ezinye izinto ezaneleyo ze-N-binding.Izinto ezibophelelayo ze-N ziya kubhalwa kuXwebhu loHlolo.

    4. Ukusetyenziswa kombhobho wentsimbi we-A252 grade 1:

    Umbhobho wensimbi we-A252 weBanga loku-1 unoluhlu olubanzi lwezicelo kwishishini leoli kunye negesi, kubandakanya:

    a) Imibhobho yokuhambisa: esetyenziselwa ukuthutha i-oyile ekrwada, igesi yendalo kunye nezinye iimveliso zepetroleum ukusuka kwimimandla yemveliso ukuya kwiindawo zokucokisa kunye namaziko okuhambisa.

    b) I-Offshore Drilling: Imibhobho ye-SAWH isetyenziswa kwimisebenzi yokwemba i-oli nerhasi kude nonxweme.Ukumelana nomhlwa kunye namandla oxinzelelo oluphezulu kubenza bafaneleke ukuhlola ulwandle olunzulu.

    c) Ukucoca: Imibhobho yentsimbi ye-A252 IBANGA LOKU-1 isetyenziswa ngokubanzi kwiindawo zokucokisa ukuthutha i-oyile ekrwada esetyenzisiweyo kunye neemveliso zepetroleum.

    Umbhobho we-SSAW

    Ukuququmbela:

    Imibhobho ye-SAWH, ngakumbi imibhobho yentsimbi ye-A252 IBANGA LOKU-1, idlala indima ebalulekileyoumbhobho we-oyile kunye negesiishishini.Amandla abo, ukuqina, kunye nokumelana nomhlwa kubenza babe lukhetho oluthembekileyo kwizicelo ezahlukeneyo.Ukuqonda iingenelo zemibhobho ye-SAWH kunye neempawu zayo ezithile kunokunceda ekuqinisekiseni ukuthuthwa okuyimpumelelo kwe-oyile negesi ngelixa kunciphisa iindleko zokugcinwa kunye nokwandisa ukusebenza kakuhle kweprojekthi.

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