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    Isikhokelo Esipheleleyo se-SAWH kwiTube: Umbhobho weNtsimbi we-A252 Grade 1 wokusetyenziswa kweoyile negesi

    Isikhokelo Esipheleleyo se-SAWH kwiTube: Umbhobho weNtsimbi we-A252 Grade 1 wokusetyenziswa kweoyile negesi Umfanekiso obonisiweyo
    • Isikhokelo Esipheleleyo se-SAWH kwiTube: Umbhobho weNtsimbi we-A252 Grade 1 wokusetyenziswa kweoyile negesi

    Inkcazo emfutshane:

    Umbhobho we-SAWH (Suberged Arc Welded Spiral) usetyenziswa kakhulu kwishishini leoyile negesi ngenxa yokuba unamandla kwaye uhlala ixesha elide. Kule blog, siza kuhlola iimpawu eziphambili kunye neenzuzo zeUmbhobho wentsimbi weBanga loku-1 we-A252 ezisetyenziswa kakhulu kwizicelo zeoyile negesi. Okokugqibela, uya kuba nokuqonda okubanzi ngemibhobho ye-SAWH kunye nokubaluleka kwayo kushishino.


    Iinkcukacha zeMveliso

    Iithegi zeMveliso

    1. Qonda umbhobho we-SAWH:

    Imibhobho ye-SAWHZenziwe ngeepleyiti zentsimbi ezicwangciswe nge-spiralally. La maphepha enziwa abe ziityhubhu aze adityaniswe kusetyenziswa inkqubo yokudityanisa i-arc engaphantsi komhlaba. Le ndlela yokudityanisa iqinisekisa ukudityanisa okuqinileyo, okuqhubekayo kulo lonke ubude bombhobho, okwenza ukuba umelane kakhulu nezinto zangaphandle zoxinzelelo ezifana nefuthe kunye noxinzelelo. Ezi payipi zaziwa ngomthamo wazo okhethekileyo wokuthwala umthwalo kunye nokuqina kwesakhiwo, nto leyo eyenza ukuba zilungele ukuthutha ioyile negesi.

    2. Umbhobho wentsimbi webanga loku-1 we-A252:

    I-A252 GRADE 1 yinkcazo yombhobho wentsimbi yesakhiwo eyenzelwe ngokukodwa ukusetyenziswa koxinzelelo. Le mibhobho yenziwe ngentsimbi ye-A252, eneempawu ezintle kakhulu zoomatshini kunye namandla aphezulu okutsalwa. Umbhobho wentsimbi we-A252 GRADE 1 usetyenziswa kakhulu ngenxa yokukwazi kwawo ukumelana noxinzelelo oluphezulu kunye nokumelana nokugqwala kunye nokuguquka kwiindawo ezinzima zeoyile kunye negesi.

    Ipropati yoomatshini

    inqanaba lesinyithi

    amandla amancinci okuvelisa
    I-Mpa

    Tensile strength

    Ubuncinane bobude
    %

    Amandla amancinci empembelelo
    J

    Ubukhulu obuchaziweyo
    mm

    Ubukhulu obuchaziweyo
    mm

    Ubukhulu obuchaziweyo
    mm

    kubushushu bovavanyo lwe
     

    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. Iingenelo zombhobho wentsimbi webanga loku-1 we-A252:

    a) Amandla kunye Nokuqina:Umbhobho wentsimbi we-A252 GRADE 1Iqinile kwaye ihlala ixesha elide, inokumelana nemithwalo enzima kwaye ifanelekile kwiinkqubo zokuhambisa ioyile negesi. Amandla ayo aphezulu okutsalwa aqinisekisa ukuqina kwexesha elide kwaye anciphisa iimfuno zokugcinwa.

    b) Ukumelana nokugqwala: Imibhobho yeoyile negesi isengozini yokugqwala ngenxa yeemeko ezinzima zokusingqongileyo. Umbhobho wentsimbi we-A252 GRADE 1 unengubo eyongezelelweyo enganyangekiyo kukugqwala, efana ne-fused-bonded epoxy (FBE), ukuphucula ukuqina kwayo nokwandisa ubomi bayo benkonzo.

    c) Ukuguquguquka: Imibhobho ye-SAWH inokwenziwa ngeedayamitha ezahlukeneyo kunye nobude ukuhlangabezana neemfuno ezithile zeprojekthi. Oku kuguquguquka kwenza kube lula ukufakwa ngaphandle kwesidingo seejoyinti ezininzi, kunciphisa umngcipheko wokuvuza.

    d) Ixabiso eliphantsi: Umbhobho wentsimbi we-A252 Grade 1 ubonelela ngesisombululo esingabizi kakhulu kwimibhobho yeoyile negesi. Ubomi bayo obude benkonzo kunye neemfuno eziphantsi zokugcinwa kunciphisa iindleko zokusebenza ngokuhamba kwexesha.

    Umbhobho Womjelo Wamanzi Ongaphantsi Komhlaba

    Ukwenziwa kweeKhemikhali

    Ibanga lentsimbi

    Uhlobo lokususa i-oxidation

    % ngobunzima, ubuninzi

    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 yokususa ioksijini ichazwe ngolu hlobo lulandelayo:

    FF: Intsimbi ebulewe ngokupheleleyo equlethe izinto zokubopha initrogen ngobuninzi obaneleyo ukubopha initrogen ekhoyo (umz. ubuncinci be-0,020% iyonke ye-Al okanye i-0,015% ye-Al enyibilikayo).

    b. Ixabiso eliphezulu le-nitrogen alisebenzi ukuba ukwakheka kweekhemikhali kubonisa umxholo opheleleyo we-Al ongama-0,020% kunye nomlinganiselo ophantsi we-Al/N oyi-2:1, okanye ukuba kukho ezinye izinto ezaneleyo zokubopha i-N. Izinto zokubopha i-N mazirekhodwe kuXwebhu loHlolo.

    4. Ukusetyenziswa kombhobho wentsimbi webanga loku-1 we-A252:

    Umbhobho wentsimbi we-A252 Grade 1 uneendlela ezahlukeneyo zokusetyenziswa kwishishini leoyile negesi, kuquka:

    a) Iipayipi zothutho: ezisetyenziselwa ukuthutha ioyile ekrwada, igesi yendalo kunye nezinye iimveliso zepetroleum ukusuka kwiindawo zokuvelisa ukuya kwiindawo zokucoca kunye neendawo zokusasaza.

    b) Ukugrumba olwandle: Imibhobho ye-SAWH isetyenziswa kwimisebenzi yokugrumba ioyile negesi olwandle. Ukumelana kwayo nokugrumba kunye nokukwazi kwayo ukuxinzelela uxinzelelo oluphezulu kuyenza ifaneleke ukuphononongwa kolwandle olunzulu.

    c) Ukucoca: Imibhobho yentsimbi ye-A252 GRADE 1 isetyenziswa kakhulu kwiindawo zokucoca ukuthutha ioyile eluhlaza ecociweyo kunye neemveliso zepetroleum.

    Umbhobho we-SSAW

    Ukuququmbela:

    Iipayipi ze-SAWH, ingakumbi iipayipi zentsimbi ze-A252 GRADE 1, zidlala indima ebalulekileyoumbhobho weoyile negesishishini. Amandla azo, ukuqina kwazo, kunye nokumelana nokugqwala kuzenza zibe lukhetho oluthembekileyo kwiintlobo ngeentlobo zezicelo. Ukuqonda iingenelo zemibhobho ye-SAWH kunye neempawu zayo ezithile kunokunceda ukuqinisekisa ukuthuthwa kweoyile negesi ngempumelelo ngelixa kunciphisa iindleko zokugcinwa kunye nokwandisa ukusebenza kakuhle kweprojekthi.

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