Txoj kev tsim khoom ntawm cov yeeb nkab steel txiav txim siab nws qhov tseeb qhov tseeb, kev ncaj ncees vuam thiab tus nqi, thiab API 5L X52 Yeeb Nkab: Kev Sib Piv Ntawm ERW thiab SAW Vuam yog cov txheej txheem ntawm qhov chaw ntawm qhov kev txiav txim siab rau feem ntau cov kab yeeb nkab. Kab lus no piav qhia txog cov txheej txheem ua haujlwm li cas, nws tsim dab tsi, thiab yuav xaiv li cas ntawm cov kev muaj.
Seamless yeeb nkab tsis muaj vuam seam; welded yeeb nkab yog koom nrog ERW, HFW lossis SAW.
ERW / HFW npog diameters txog li 660 hli ntawm tus nqi ntau lawm.
LSAW thiab SSAW ua haujlwm loj - txoj kab uas hla, tuab - phab ntsa ntau.
Hydrostatic thiab tsis yog - kev ntsuas kev puas tsuaj yog qhov yuav tsum tau ua ntawm txhua txoj hauv kev.
Kev xaiv txheej txheem yog teeb tsa los ntawm qhov tshwj xeeb, tsis yog los ntawm kev yuav khoom.
Ob Tsev Neeg: Seamless thiab Welded
Cov yeeb nkab steel tau muab faib ua cov yeeb nkab seamless, tsim los ntawm cov khoom siv puag ncig uas yog pierced thiab elongated, thiab welded yeeb nkab, tsim los ntawm steel sawb los yog phaj thiab koom nrog ib tug longitudinal los yog kauv seam. Seamless yeeb nkab tsis muaj vuam seam, uas yog vim li cas nws thiaj li nyiam rau siab -siab, siab - kub thiab qaub kev pab cuam; welded yeeb nkab yeej ntawm tus nqi, qhov ntau thiab tsawg thiab phab ntsa thickness uniformity rau loj diameters.
Seamless Manufacturing: Piercing thiab Rolling
Nyob rau hauv cov txheej txheem seamless ib rhuab puag ncig billet yog pierced los ntawm ib tug plug los yog mandrel zeb los tsim ib tug hollow plhaub, uas yog ces elongated los ntawm ntxiv dov mus txog rau qhov yuav tsum tau txoj kab uas hla thiab phab ntsa thickness. Cov yeeb nkab yog qhov loj me, ncaj nraim, kho cua sov yog tias xav tau, thiab ua tiav nrog tsis yog - kev sim ua kom puas. Qhov tsis muaj weld ua rau tag nrho cov phab ntsa ua homogeneous wrought qauv, uas yog qhov zoo tshaj plaws hauv kev pabcuam cyclic thiab corrosive.
ERW thiab HFW Vuam
Hluav taws xob tsis kam vuam (ERW) tsim cov yeeb nkab los ntawm cov kab mob khaub thuas, thiab cov seam yog welded los ntawm cov cua kub tsis kam tsis muaj hlau; siab - zaus vuam (HFW) yog qhov hloov pauv niaj hnub nrog ntau dua qhov nrawm. Tom qab welding, lub seam yog normalized los yog post-weld kub kho thiab tag nrho cov yeeb nkab tsis yog - kuaj puas. ERW / HFW yeeb nkab yog kev lag luam nyob rau hauv txoj kab uas hla mus txog 660 hli thiab dav siv rau kev sib sau ua ke roj, kab dej thiab kev siv cov qauv.
SAW, LSAW thiab SSAW: Submerged Arc Vuam
Submerged arc vuam (SAW) koom nrog cov phaj tuab nrog cov hlau txuas txuas ntxiv hauv qab daim pam flux. Hauv LSAW (longitudinal SAW) cov seam khiav raws cov yeeb nkab ntev, hauv JCOE lossis UOE tsim rau cov kab loj loj; nyob rau hauv SSAW (kauv SAW) lub phaj yog tsim helically yog li ib tug seam spirals raws cov yeeb nkab. SAW yeeb nkab npog qhov loj - txoj kab uas hla, tuab - phab ntsa siv rau cov kab hauv lub cev, dej thiab cov txheej txheem piling, qhov twg ERW tsis muaj.
Qhov txheej txheem cuam tshuam li cas rau tus neeg yuav khoom
Cov txheej txheem kev xaiv teeb tsa cov kev txwv ntawm qhov kev txiav txim: seamless yeeb nkab feem ntau khiav mus txog 660 hli sab nraud txoj kab uas hla, ERW txog li 660 hli, thaum LSAW thiab SSAW txuas mus rau 1500 hli thiab tshaj. Phab ntsa thickness, ntev, kam rau ua chav kawm thiab qib xeem txhua qhov sib txawv ntawm txoj kev, yog li qhov project specification, tsis yog tus cwj pwm ntawm tus neeg yuav khoom, yuav tsum txiav txim siab txog cov txheej txheem.
Quality Control Common rau Txhua Txoj Kev
Txhua txoj hauv kev xaus nrog kev sim hydrostatic, kev tshuaj xyuas qhov ntev thiab tsis yog -kev kuaj xyuas kev puas tsuaj. Seamless yeeb nkab feem ntau kuaj xyuas los ntawm kev kuaj ultrasonic lossis eddy tam sim no, ERW / HFW yeeb nkab los ntawm kev kuaj ultrasonic ntawm thaj chaw vuam, thiab SAW yeeb nkab los ntawm kev kuaj ultrasonic thiab radiographic ntawm lub seam. Daim ntawv pov thawj xeem teev cov txiaj ntsig ntawm ib qho cua sov thiab ib lub yeeb nkab uas qhov kev qhia tshwj xeeb yuav tsum tau ua.
Cov lus nug nquag
Seamless yeeb nkab yog pierced los ntawm ib tug khoom billet thiab tsis muaj weld seam; welded yeeb nkab yog tsim los ntawm sawb lossis phaj thiab koom nrog ERW, HFW lossis SAW. Seamless suits siab -siab thiab qaub kev pab cuam, welded yeeb nkab yog ntau yig nyob rau hauv loj diameters.
Hluav taws xob kuj welding, txheej txheem nyob rau hauv uas lub seam yog welded los ntawm kuj cua sov tsis muaj muab tub lim hlau; HFW yog qhov siab -frequency variant.
LSAW yeeb nkab muaj ib tug longitudinal seam raws nws ntev; SSAW yeeb nkab yog tsim helically yog li cov seam spirals raws qhov ntev. Ob leeg siv submerged arc vuam.
Txias- tsim ERW thiab txias- dov seamless yeeb nkab muab qhov nruj tshaj plaws kam rau ua; kub- cov txheej txheem tsim yuav tsum tau tso cai rau scale thiab ovality. Cov chav kawm kam rau ua tau txhais nyob rau hauv cov qauv khoom.
Yog lawm. ERW, HFW thiab SAW kab yeeb nkab tau txais tag nrho raws li API 5L thiab ISO 3183 rau kev pabcuam roj, nrog rau qib NDT nyob ntawm PSL thiab qhov project specification.
Pib los ntawm txoj kab uas hla, phab ntsa thickness, kev pab cuam siab thiab kub, ces sib piv muaj thiab nqi. Qab zib los yog siab - qhov kub thiab txias kev pab cuam nyiam seamless; loj diameters quab yuam SAW; nruab nrab diameters yog kev lag luam tshaj plaws hauv ERW.
