Amandla ombhobho we-wellded ophindwe kabini kwizicelo zemveliso

Ukomelela kombhobho we-wellded ophindwe kabini kwizicelo zemizi-mveliso eboniswe umfanekiso

Inkcazo emfutshane:

Kwihlabathi lokutsibilika kwemizi mveliso, iindlela zokwakha kunye neendlela zokwakha zinokuba nefuthe elibonakalayo kwintsebenzo epheleleyo kunye nezobomi zabo ziyonke zenkqubo. Enye indlela ethandwayo ngenxa yamandla ayo kunye nokuqhekeka kukusebenzisa umbhobho we-welfmed. Le mibhobho yenzelwe ukumelana noxinzelelo oluphezulu, ubushushu obugqithisileyo kunye neemeko ezinzima zokusingqongileyo, zibenze balungele iintlobo ezahlukeneyo zeshishini.

Thumela i-imeyile kuthi

Iinkcukacha zemveliso

Iimpawu zeMveliso

Imibhobho ephindwe kabini ye-weldiedzakhiwa ngezinto ezimbini ezizimeleyo ezizimeleyo zokwenza uqhagamshelo olomeleleyo noluthembekileyo phakathi kwamacandelo epayipi. Le nkqubo iphindwe kabini iqinisekisa ukuba umbhobho ungamelana noxinzelelo kunye noxinzelelo olunokuhlangatyezwa ngexesha lokusebenza, lwenza ukhetho oluthembekileyo kwizicelo ezibalulekileyo apho ukungaphumeleli.

Esona sibonelelo siphambili semibhobho ephindwe kabini kukukwazi kwabo ukuphatha iimeko zoxinzelelo oluphezulu. Inkqubo ye-well yelding yendalo idala unxibelelwano olungenamthungo olungenamthungo olungenamthungo phakathi kwamacandelo enziwe, uqinisekisa ukuba banokujamelana noxinzelelo lwangaphakathi ngaphandle komngcipheko okanye ukusilela. Oku kubangela ukuba balungele izicelo ezinje ngemibhobho yeoyile kunye negesi, apho ingqibelelo yenkqubo yombhobho ibalulekile ekukhuseleni nasekusebenzeni ukusebenza kakuhle.

Itheyibhile 2 iphambili emzimbeni kunye neekhemikhali zemibhobho yentsimbi (GB / T3091-2008, GB / T9711-2011 kunye ne-API STAR

Umgangatho

Inqanaba lensimbi

Oonobumba bemichiza (%)

Ipropathi ye-tedin

Uvavanyo lwePhardy (v notch) uvavanyo lwempembelelo

Enye

Isivuno (MPA)

Amandla e-thensle (MPA)

(L0 = 5.65 √ s0) Inqanaba le-Min Morect (%)

max

imiz

max

imiz

max

D ≤ 168.3mm

D> 168.3mm

GB / T3091 -2008

I-Q215A

≤ 0.15

I-0.25 <1.20

I-0.045

I-0.050

I-0.35

Ukongeza i-NBVTI ngokungqinelana ne-GB / T1591-94

215

335

> 31

I-Q215b

≤ 0.15

I-0.25-0.55

I-0.045

I-0.035

215

335

> 31

I-Q235A

I-0.22

I-0.30 <0.65

I-0.045

I-0.050

I-0.035

235

375

> 26

Q235b

≤ 0.20

I-0.30 ≤ 1.80

I-0.045

I-0.035

235

375

> 26

I-Q295A

I-0.16

I-0.80-1.50

I-0.045

0.55

295

I-390

> 23

I-Q295b

I-0.16

I-0.80-1.50

I-0.045

I-0.040

0.55

295

I-390

> 23

I-Q345A

I-0.20

1.00-1.60

I-0.045

0.55

345

I-510

> 21

Q345b

I-0.20

1.00-1.60

I-0.045

I-0.040

0.55

345

I-510

> 21

I-GB / T911-2011 (PSL1)

L175

I-0.21

I-0.60

I-0.030

Inketho yokongeza enye ye-NBVTI okanye nayiphi na indibaniselwano yazo

175

I-310

Isalathiso esinye okanye ezimbini zesalathiso sobunzima sefuthe kunye nendawo yokucheba kunokunyulwa. Kwi-l555, bona umgangatho.

L210

I-0.22

I-0.90

I-0.030

I-210

335

L245

I-0.26

1.20

I-0.030

245

415

L290

I-0.26

1.30

I-0.030

290

415

L320

I-0.26

1.40

I-0.030

320

435

L360

I-0.26

1.40

I-0.030

I-360

460

L390

I-0.26

1.40

I-0.030

I-390

L415

I-0.26

1.40

I-0.030

415

I-520

L450

I-0.26

1.45

I-0.030

I-450

I-535

L485

I-0.26

1.65

I-0.030

485

I-570

API 5L (PSL 1)

A25

I-0.21

I-0.60

I-0.030

Kwintsimbi yeBanga le-B, i-NB + v ≤ i-0.03%; yensimbi yongeza kwiBanga B, ngokuzithandela ukongeza i-NB okanye i-NB + ti t 0.15%

172

I-310

(L0 = 50mm) ukubalwa ngokwefom yefomula elandelayo: e = 19442 ·0 .2

Akukho namnye okanye nawuphi na okanye omabini amandla kunye nendawo yokucheba iyafuneka njengekhrayitheriya onzima.

I-0.22

I-0.90

I-0.030

207

331

I-0.26

1.20

I-0.030

241

414

X42

I-0.26

1.30

I-0.030

290

414

X46

I-0.26

1.40

I-0.030

317

434

X52

I-0.26

1.40

I-0.030

359

455

X56

I-0.26

1.40

I-0.030

386

I-490

X60

I-0.26

1.40

I-0.030

414

I-517

X65

I-0.26

1.45

I-0.030

448

I-531

X70

I-0.26

1.65

I-0.030

483

I-565

Ukongeza kumandla ayo, umbhobho we-weldied ophindwe kabini uyakwazi ukumelana nobushushu obugqithisileyo, owenza ilungele iinkqubo ezahlukeneyo zokusebenza. Nokuba uhambisa i-fluids eshushu okanye igesi, okanye isebenza kwiindawo ezinobushushu obuguqukayo, umbhobho ophindwe kabini ugcina umsebenzi wayo kunye nentsebenzo, ekuqinisekiseni ukusebenza okuthembekileyo phantsi kweemeko ezinzima.

Ukongeza, ukuqina kombhobho we-wellded kabini kwenza ukhetho olusebenzayo lwezicelo zomizi-mveliso. Amandla abo okunxiba, usulelo kunye nezinye iindlela zokupheliswa kuthetha ukuba bafuna ulondolozo oluncinci kunye nokutshintshwa, ukunciphisa iindleko zokusebenza ngokubanzi kunye nexesha lokuphumla.

Lilonke, ukusetyenziswa kombhobho we-wellded kabini ubonelela ngeentlobo zezibonelelo zezicelo zeshishini, kubandakanya amandla, ukuqina kunye nokuthembeka. Amandla abo okusombulula uxinzelelo oluphakamileyo, amaqondo obushushu agqithisileyo kunye neemeko ezinzima zokusingqongileyo zibenza balungele uluhlu olubanzi lwamashishini avela kwioyile kunye negesi yokuqhubela phambili kwamachiza. Ngobomi bazo obungqinisisiweyo kunye nerekhodi lobomi benkonzo, umbhobho we-wellded kabini yi-asethi exabisekileyo kuyo nayiphi na inkqubo yokubhoboza ishishini.