I-Spiral Welded Steel Pipe Yamandla angenakulinganiswa kunye nokusebenza kakuhle kwe-ASTM A252

Inkcazelo emfutshane:

Oku kuchazwa kukubonelela ngomgangatho wokwenziwa kwenkqubo yemibhobho yokuhambisa amanzi, igesi kunye ne-oyile kumashishini e-oyile negesi yendalo.

Kukho amanqanaba amabini okucaciswa kwemveliso, i-PSL 1 kunye ne-PSL 2, i-PSL 2 ineemfuno ezinyanzelekileyo zokulingana kwekhabhoni, ukuqina kwenotshi, amandla aphezulu esivuno kunye namandla okuqina.


Iinkcukacha zeMveliso

Iithegi zeMveliso

Yazisa:

Xa kuziwa kuphuhliso lweziseko zophuhliso, iinkqubo zemibhobho ziyinxalenye ephambili edlala indima ebalulekileyo kumashishini ahlukeneyo.Ukusebenzisa izinto ezifanelekileyo kunye nobuchule ekwakhiweni kombhobho kuqinisekisa ukuhlala, amandla kunye nokuthembeka, kunyeumbhobho wentsimbi odityanisiweyo we-ASTM A252iphambili kule nkqubela phambili yezobuchwepheshe.Kule bhlog, siza kujonga ngakumbi iimpawu ezikhethekileyo kunye noncedo lwale mibhobho imangalisayo ethe yaba ngundoqo kwiiprojekthi zokwakha zale mihla.

IiPropati zoomatshini boMbhobho we-SSAW

ibakala lentsimbi

ubuncinci amandla esivuno
Mpa

Ubuncinci bokuqina kwamandla
Mpa

Ubuncinci 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

Ubume beKhemikhali beMibhobho ye-SSAW

ibakala lentsimbi

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

Unyamezelo lweJiyometri yeMibhobho ye-SSAW

Ukunyamezela kwejometri

ngaphandle kwedayimitha

Ubunzima bodonga

ukuthi tye

ngaphandle kokujikeleza

ubunzima

Ubude be-weld bead

D

T

             

≤1422mm

ngaphezu kwe-1422 mm

<15mm

≥15mm

umbhobho ekupheleni 1.5m

ubude obuphelele

umzimba wombhobho

ukuphela kombhobho

 

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 lweHydrostatic

imveliso-inkcazo1

Amandla angenakulinganiswa kunye noKuhlala ixesha elide:

I-ASTM A252umbhobho wentsimbi odityanisiweyoyenziwe ngentsimbi ekumgangatho ophezulu edibana nemigangatho ye-ASTM A252.Umgangatho uqinisekisa amandla aphezulu kunye nokuqina kwemibhobho, okwenza ukuba ifaneleke kwizicelo ezahlukeneyo ezibandakanya ukuhanjiswa kweoli kunye negesi, iziseko zokupakisha kunye neziseko zamanzi.I-Spiral welds yandisa amandla kunye nokuchasana kwemibhobho kumandla angaphandle, ukuqinisekisa ukuba banokumelana noxinzelelo oluphezulu kunye neemeko zemozulu ezinzima.

Ukusebenza kakuhle kunye nokusebenza kakuhle kweendleko:

Enye yeenzuzo eziphambili ze-ASTM A252 spiral welded steel pipe kukusebenza kwayo okuphezulu ekufakeni nasekusebenziseni.Uyilo lwayo lwe-spiral kulula ukuyihambisa kunye nokuphatha ngenxa yobunzima bayo obukhaphukhaphu xa kuthelekiswa nezinye izinto zombhobho.Ukongezelela, ukuguquguquka kwale mibhobho kunceda ukugoba, ukunciphisa iimfuno zokufakelwa kunye nokudibanisa.Oku akugcini nje ukugcina ixesha, kunciphisa kakhulu iindleko zokufakela, okwenza olu hlobo lwe-ductwork lube sisisombululo esineendleko eziphezulu kwiiprojekthi ezahlukeneyo.

Spiral Umbhobho Welding Ubude Ukubala

Ukomelezwa kokumelana nomhlwa:

Umhlwa yingxaki enkulu kwiinkqubo zemibhobho, ngakumbi kumashishini aphatha imichiza kunye nezinto ezidlekayo.Umgangatho we-ASTM A252 uqinisekisa ukuba imibhobho yentsimbi edityanisiweyo ibonisa ukuxhathisa okugqwesileyo kokutya.Le mibhobho ineengubo ezikhuselayo ezifana ne-epoxy okanye i-zinc esebenza njengesithintelo kwii-agent ezitshabalalisayo, ukwandisa ubomi babo benkonzo kunye nokunciphisa iindleko zokugcina.Olu phawu lunenzuzo ngokukhethekileyo kwizicelo eziphantsi komhlaba okanye ngaphandle kwe-offshore apho imibhobho ibonakaliswe kwiimeko ezinzima zokusingqongileyo.

Umthamo omkhulu wokuthwala:

Olunye uphawu olubalulekileyo lwe-ASTM A252 spiral welded steel pipe yindlela ebalaseleyo yokuthwala umthwalo.Iteknoloji ye-Spiral welding esetyenziswa kwinkqubo yokuvelisa iphakamisa amandla ombhobho kunye nokukwazi ukumelana nemithwalo enzima.Ingaba isetyenziselwa ukwakhiwa kwebhulorho, iziseko zezakhiwo okanye imibhobho engaphantsi komhlaba, le mibhobho ibonelela ngokunyaniseka kwesakhiwo, ukunciphisa umngcipheko wokungaphumeleli kunye nokuqinisekisa ukhuseleko lwexesha elide kwiiprojekthi ezahlukeneyo zeziseko.

Ukuzinza kokusingqongileyo:

Kwixesha apho ukhuseleko lokusingqongileyo luyinkxalabo yehlabathi, ukukhetha izixhobo ezifanelekileyo zokwakha kubalulekile.Umbhobho wentsimbi odityanisiweyo we-Spiral i-ASTM A252 ihambelana nezenzo zokwakha ezizinzileyo ngenxa yokuqina kwayo kunye nokuphinda isetyenziswe.Imibhobho inobomi obude benkonzo kwaye inokuphinda isetyenziswe ngokulula ekupheleni kobomi babo, ukunciphisa imfuno yokukhutshwa kwezinto ezintsha ngelixa ukunciphisa inkunkuma kunye nokukhutshwa kwekhabhoni.

Ukuququmbela:

Umbhobho wentsimbi odityanisiweyo we-Spiral i-ASTM A252 iguqule ishishini lemibhobho ngamandla ayo aphezulu, ukuqina kunye nokusebenza kakuhle kweendleko.Le mibhobho idibana okanye igqithise imigangatho yoshishino, iyenze ibe yinto yokuqala yokukhetha kumashishini amaninzi.Umthamo wayo ogqwesileyo wokuthwala umthwalo kunye nokumelana nomhlwa ziqinisekisa uphuhliso oluzinzileyo lweeprojekthi zeziseko ezingundoqo kunye negalelo kuphuhliso loshishino lwehlabathi.Ngokusebenzisa le mibhobho, iiprojekthi zokwakha zinokwandisa ukusebenza kakuhle, ukunciphisa iindleko kunye nokuqinisekisa ukuthembeka kwexesha elide ngelixa uhambelana nokuzinza kwendalo.


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