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    Umbhobho wentsimbi edibeneyo ejikelezayo ukuze kube namandla angenakuthelekiswa nanto kunye nokusebenza kakuhle kwe-ASTM A252

    Umbhobho wentsimbi edibeneyo ejikelezayo ukuze ibe namandla angenakuthelekiswa nanto kunye nokusebenza kakuhle. Umfanekiso obonisiweyo we-ASTM A252
    • Umbhobho wentsimbi edibeneyo ejikelezayo ukuze kube namandla angenakuthelekiswa nanto kunye nokusebenza kakuhle kwe-ASTM A252

    Inkcazo emfutshane:

    Le ngcaciso ibonelela ngemigangatho yokuvelisa inkqubo yemibhobho yokuhambisa amanzi, igesi kunye neoyile kwimizi-mveliso yeoyile kunye negesi yendalo.

    Kukho amanqanaba amabini eenkcukacha zemveliso, i-PSL 1 kunye ne-PSL 2, i-PSL 2 ineemfuno eziyimfuneko zokulingana kwekhabhoni, ubulukhuni be-notch, amandla aphezulu okuvelisa kunye namandla okutsalwa.


    Iinkcukacha zeMveliso

    Iithegi zeMveliso

    Yazisa:

    Xa kufikwa kuphuhliso lweziseko zophuhliso, iinkqubo zemibhobho ziyinxalenye ebalulekileyo edlala indima ebalulekileyo kumashishini ahlukeneyo. Ukusebenzisa izixhobo kunye neendlela ezifanelekileyo ekwakheni imibhobho kuqinisekisa ukuqina, amandla kunye nokuthembeka, kunyeumbhobho wentsimbi odibeneyo ojikelezayo i-ASTM A252iphambili kule nkqubela phambili kwezobuchwepheshe. Kule blog, siza kujonga ngokusondeleyo iimpawu kunye neenzuzo ezibalaseleyo zale mibhobho imangalisayo eye yaba yinto ephambili kwiiprojekthi zokwakha zanamhlanje.

    Iimpawu zoomatshini zePipe ye-SSAW

    inqanaba lesinyithi

    amandla amancinci okuvelisa
    I-Mpa

    ubuncinci bokuqina koxinzelelo
    I-Mpa

    Ubuncinane bobude
    %

    B

    245

    415

    23

    X42

    290

    415

    23

    X46

    320

    435

    22

    X52

    360

    460

    21

    X56

    390

    490

    19

    X60

    415

    520

    18

    X65

    450

    535

    18

    X70

    485

    570

    17

    Ukwakhiwa kweekhemikhali zemibhobho ye-SSAW

    inqanaba lesinyithi

    C

    Mn

    P

    S

    V+Nb+Ti
     

    Ubuninzi %

    Ubuninzi %

    Ubuninzi %

    Ubuninzi %

    Ubuninzi %

    B

    0.26

    1.2

    0.03

    0.03

    0.15

    X42

    0.26

    1.3

    0.03

    0.03

    0.15

    X46

    0.26

    1.4

    0.03

    0.03

    0.15

    X52

    0.26

    1.4

    0.03

    0.03

    0.15

    X56

    0.26

    1.4

    0.03

    0.03

    0.15

    X60

    0.26

    1.4

    0.03

    0.03

    0.15

    X65

    0.26

    1.45

    0.03

    0.03

    0.15

    X70

    0.26

    1.65

    0.03

    0.03

    0.15

    Ukunyamezelana kweJiyometri kweeMibhobho zeSSAW

    Ukunyamezelana kwejometri

    ububanzi obungaphandle

    Ubukhulu bodonga

    ukuthe tye

    ukungaguquguquki

    ubunzima

    Ukuphakama okuphezulu kwe-weld bead

    D

    T

    		              

    ≤1422mm

    ＞1422mm

    ＜15mm

    ≥15mm

    isiphelo sombhobho 1.5m

    ubude obuphelele

    umzimba wombhobho

    isiphelo sombhobho

    		  

    T≤13mm

    T ＞13mm

    ± 0.5%
    ≤4mm

    njengoko kuvunyelwene

    ± 10%

    ± 1.5mm

    3.2mm

    0.2% L

    0.020D

    0.015D

    '+10%
    -3.5%

    3.5mm

    4.8mm

    Uvavanyo lwe-Hydrostatic

    inkcazo yemveliso1

    Amandla Nokuqina Okungenakuthelekiswa Nanto:

    I-ASTM A252umbhobho wentsimbi odibeneyo ojikelezayoYenziwe ngentsimbi ekumgangatho ophezulu ehlangabezana nemigangatho ye-ASTM A252. Lo mgangatho uqinisekisa ukomelela okuphezulu kunye nokuqina kwemibhobho, okwenza ifaneleke kwiintlobo ngeentlobo zezicelo kubandakanya ukuhanjiswa kweoyile negesi, iziseko zokufaka iintsika kunye neziseko zamanzi. Ii-spiral welds zonyusa amandla kunye nokumelana kwemibhobho kumandla angaphandle, ziqinisekisa ukuba inokumelana neendawo ezinoxinzelelo oluphezulu kunye neemeko zemozulu ezinzima.

    Ukusebenza kakuhle kunye nokusebenza kakuhle kweendleko:

    Enye yezona nzuzo ziphambili zombhobho wentsimbi odibeneyo we-ASTM A252 kukusebenza kakuhle kwawo ekufakeni nasekusetyenzisweni. Uyilo lwawo olujikelezayo kulula ukuluthutha nokuluphatha ngenxa yobunzima bawo obulula xa kuthelekiswa nezinye izixhobo zombhobho. Ukongeza, ukuguquguquka kwale mibhobho kwenza kube lula ukugoba, kunciphisa iimfuno zokufakelwa kunye namalungu. Oku akugcini nje ngokusindisa ixesha, kunciphisa kakhulu iindleko zokufakela, okwenza olu hlobo lwemibhobho lube sisisombululo esingabizi kakhulu kwiiprojekthi ezahlukeneyo.

    Ukubalwa kobude beWelding yePipe ejikelezayo

    Ukumelana nokugqwala okwandisiweyo:

    Ukugqwala yingxaki enkulu kwiinkqubo zemibhobho, ingakumbi kumashishini aphatha iikhemikhali kunye nezinto ezigqwalisayo. Umgangatho we-ASTM A252 uqinisekisa ukuba imibhobho yentsimbi edibeneyo ejikelezayo ibonakalisa ukumelana okuhle kokugqwala. Le mibhobho ineengubo zokukhusela ezifana ne-epoxy okanye i-zinc ezisebenza njengomqobo kwiiarhente ezigqwalisayo, zandisa ubomi bazo benkonzo kwaye zinciphisa iindleko zokugcinwa. Olu phawu luluncedo ngakumbi kwiindawo ezingaphantsi komhlaba okanye ezikude nolwandle apho imibhobho ichaphazeleka kwiimeko ezinzima zokusingqongileyo.

    Umthamo omkhulu wokuthwala:

    Olunye uphawu olubalulekileyo lombhobho wentsimbi odibeneyo we-ASTM A252 ngumthamo wawo obalaseleyo wokuthwala umthwalo. Itekhnoloji yokudibanisa ejikelezayo esetyenziswa kwinkqubo yokuvelisa iphucula amandla ombhobho kunye nokukwazi kwawo ukumelana nemithwalo enzima. Nokuba isetyenziswa ekwakhiweni kwebhulorho, kwiziseko zesakhiwo okanye kwiipayipi ezingaphantsi komhlaba, le mibhobho ibonelela ngokuqina okuphezulu kwesakhiwo, inciphisa umngcipheko wokwaphuka kwaye iqinisekisa ukhuseleko lwexesha elide lweeprojekthi ezahlukeneyo zeziseko zophuhliso.

    Uzinzo lwendalo esingqongileyo:

    Kwixesha apho ukhuseleko lokusingqongileyo luyinto ebalulekileyo kwihlabathi liphela, ukukhetha izixhobo zokwakha ezifanelekileyo kubalulekile. Umbhobho wentsimbi odibeneyo ojikelezayo i-ASTM A252 uhambelana neendlela zokwakha ezizinzileyo ngenxa yokuqina kwayo kunye nokusebenziseka kwayo kwakhona. Imibhobho inobomi obude benkonzo kwaye inokuphinda isetyenziswe ngokulula ekupheleni kobomi bayo, inciphisa isidingo sokukhutshelwa kwezinto ezintsha ngelixa inciphisa inkunkuma kunye nokukhutshwa kwekhabhoni.

    Ukuququmbela:

    Umbhobho wentsimbi odibeneyo ojikelezayo i-ASTM A252 utshintshe ishishini lemibhobho ngamandla ayo agqwesileyo, ukuqina kunye nokusebenza kakuhle kweendleko. Le mibhobho ihlangabezana okanye idlula imigangatho yeshishini, nto leyo eyenza ukuba ibe lolona khetho luphambili kumashishini amaninzi. Umthamo wayo ogqwesileyo wokuthwala umthwalo kunye nokumelana nokugqwala kuqinisekisa uphuhliso oluzinzileyo lweeprojekthi zeziseko zophuhliso kwaye negalelo ekuphuculeni ishishini lehlabathi. Ngokusebenzisa le mibhobho, iiprojekthi zokwakha zinokuphucula ukusebenza kakuhle, zinciphise iindleko kwaye ziqinisekise ukuthembeka kwexesha elide ngelixa zinamathela kulondolozo lokusingqongileyo.

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