3PE Kauv Welded Steel Yeeb Nkab

3PE anti-corrosion kauv steel yeeb nkab yog hais txog cov kav hlau steel nrog peb txheej polyolefin txheej (MAPEC) rau kev tiv thaiv kev tiv thaiv sab nraud. Cov txheej txheem tiv thaiv corrosion ntawm 3PE kauv steel kav muaj peb txheej: thawj txheej yog epoxy hmoov (FBE> 100μm), txheej thib ob yog nplaum (AD) 170-250μm, thiab txheej thib peb yog polyethylene (PE ) 1.{9}}.7 hli. Peb cov ntaub ntawv no yog fused ua ke thiab khov kho rau cov yeeb nkab steel, tsim cov txheej txheem tiv thaiv corrosion zoo heev. Cov yeeb nkab txoj kab uas hla yog los ntawm Φ60 txog Φ1420.

3PE SSAW Yeeb Nkab Specification

Hom: ERW SSAW

Kev kho deg: 3PE

Tshooj Shape: Round

Steel Qib: A53 gr. A, Gr B, A106 GR.A GR.B A333 GR1 GR3 GR6

W.T: 5-60

O.D.: 114.3-3020

Ntev: 5.8-12.5

Xaus: Beveled

Siv: Kev thauj mus los hauv Pipeline, Roj / Roj Drilling, Kev Lag Luam Tshuaj, Kev Tsim Kho & Kho Kom Zoo Nkauj, Lub Hom Phiaj Tshwj Xeeb

Thauj Pob: Pob

Thickness ntawm anti-corrosion txheej

Nominal txoj kab uas hla ntawm steel yeeb nkab DN (mm)	Epoxy txheej (mm)a	Adhesive Txheej (mm)	Yam tsawg kawg nkaus thickness ntawm anti-corrosion txheej (mm)
			Qib dav dav (G)	ntxiv dag zog rau qib (S)
DN Tsawg dua lossis sib npaug rau 100	Ntau tshaj los yog sib npaug rau 120	Ntau dua lossis sib npaug li 170	1.8	2.5
100<>			2.0	2.7
250<>			2.2	2.9
500 Tsawg dua lossis sib npaug rau DN ＜800	Ntau tshaj los yog sib npaug rau 150		2.5	3.2
800 Tsawg dua lossis sib npaug rau DN Tsawg dua lossis sib npaug rau 1200			3.0	3.7
DN 1200			3.3	4.2

3PE SSAW Steel Yeeb Nkab

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3PE Anti-Corrosion Kauv Hlau Yeeb Nkab Hydrostatic Test:

Txhua cov yeeb nkab steel yuav tsum tau kuaj xyuas hydrostatic yam tsis muaj qhov xau. Kev ntsuas siab yog suav nrog cov qauv \( P=\frac{2ST}{D} \), qhov twg \(S \) yog qhov ntsuas kev ntxhov siab hauv MPa, uas yog 60% ntawm qhov tsawg kawg nkaus tawm lub zog tau teev tseg. los ntawm cov txheej txheem steel sawb (235 MPa rau Q235). Lub sij hawm tuav lub siab yuav tsum yog tsawg kawg yog 5 vib nas this rau cov kav dej nrog \(D < 508 \) mm thiab tsawg kawg 10 vib nas this rau cov kav dej nrog \( D \ge 508 \) mm.

Kev kuaj tsis raug:

Cov welds rau kev kho, sawb kawg welds, thiab circumferential welds ntawm cov yeeb nkab steel yuav tsum tau kuaj X-ray los yog ultrasonic. Rau cov kav hlau uas siv rau kev thauj cov kua hluav taws xob, cov kauv vuam seam yuav tsum tau 100% X-ray lossis kuaj ultrasonic. Rau cov kav hlau uas siv los thauj cov kua dej zoo tib yam xws li dej, dej phwj tuaj, cua, cua sov chav, thiab lwm yam, cov kav hlau txuas txuas yuav tsum tau soj ntsuam random (20%) siv X-ray lossis ultrasonic txoj kev.

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