Raws li cov ntawv thov kev lag luam tau hloov zuj zus thiab loj hlob ntau dua, cov khoom siv kav dej thiab cov tshuab ua haujlwm rau lawv yuav tsum ua kom nrawm.
Thaum muaj ntau txoj hauv kev tsim cov yeeb nkab, qhov kev sib tham tseem ceeb tshaj plaws hauv kev lag luam piv rau hluav taws xob tiv thaiv welded (ERW) vs. seamless (SMLS) steel yeeb nkab.
Ob leeg ERW thiab seamless steel yeeb nkab raug siv rau ntau xyoo lawm; Nyob rau tib lub sijhawm, cov txheej txheem siv los tsim txhua tus tau nce qib. Yog li qhov twg zoo dua?
Manufacturing welded yeeb nkab
Welded yeeb nkab pib tawm raws li ntev, coiled ribbon ntawm steel hu ua ib tug skelp. Cov pob txha raug txiav mus rau qhov xav tau ntev, ua rau ib daim ntawv tiaj tus. Qhov dav ntawm daim ntawv luv luv yuav dhau los ua cov yeeb nkab sab nraud, ib qho txiaj ntsig uas tuaj yeem siv los suav nws qhov kawg sab nraud txoj kab uas hla.
Cov nplooj ntawv duab plaub yog pub los ntawm lub tshuab dov uas curls ntev ntev mus rau ib leeg, tsim ib lub tog raj kheej. Hauv cov txheej txheem ERW, siab - zaus hluav taws xob tam sim no dhau ntawm cov npoo, ua rau lawv yaj thiab fuse ua ke.
Ib qho zoo ntawm ERW yeeb nkab yog tias tsis muaj fusion hlau siv thiab vuam seam tsis tuaj yeem pom lossis hnov. Qhov ntawd tsis pom zoo rau ob chav submerged arc vuam (DSAW), uas tawm tom qab ib qho pom tseeb weld hlaws uas yuav tsum tau muab tshem tawm nyob ntawm daim ntawv thov.
Welded yeeb nkab tsim cov txheej txheem tau txhim kho ntau xyoo. Tej zaum qhov kev nce qib tseem ceeb tshaj plaws yog qhov hloov mus rau siab - zaus hluav taws xob tam sim no rau vuam. Ua ntej xyoo 1970, tsawg- zaus tam sim no tau siv. Weld seams uas tsim los ntawm qis- zaus ERW tau ua rau corrosion thiab seam tsis ua haujlwm.
Feem ntau welded yeeb nkab hom xav tau kev kho cua sov tom qab tsim khoom.
Manufacturing seamless yeeb nkab
Seamless piping pib raws li cov khoom cylindrical hunk ntawm steel hu ua billet. Thaum tseem kub, billets yog pierced los ntawm qhov chaw nrog ib tug mandrel. Cov kauj ruam tom ntej yog dov thiab ncab lub hollow billet. Lub billet yog precisely dov thiab stretched kom txog rau thaum nws ua tau raws li qhov ntev, txoj kab uas hla thiab phab ntsa thickness raws li teev los ntawm cov neeg muas zaub txiav txim.
Qee hom yeeb nkab seamless harden li lawv tau tsim, yog li kev kho cua sov tom qab kev tsim khoom tsis tas yuav tsum tau ua. Lwm tus xav tau kev kho cua sov. Nrog rau qhov tshwj xeeb ntawm cov yeeb nkab seamless koj tab tom xav txog seb nws yuav xav tau kev kho cua sov.
Keeb kwm kev xav thiab kev siv rooj plaub rau welded vs. seamless steel yeeb nkab
ERW thiab seamless steel piping muaj nyob ua lwm txoj hauv kev niaj hnub no vim muaj keeb kwm kev xav.
Feem ntau, welded yeeb nkab tau suav tias yog qhov tsis muaj zog vim tias nws suav nrog lub vuam seam. Seamless yeeb nkab tsis muaj qhov pom qhov tsis zoo ntawm cov qauv no thiab tau pom tias muaj kev nyab xeeb dua. Txawm hais tias nws muaj tseeb tias cov yeeb nkab welded muaj xws li cov seam uas ua rau nws qhov kev xav tsis muaj zog, cov txheej txheem tsim khoom thiab cov txheej txheem kev ruaj ntseg zoo txhua tus tau txhim kho mus rau qhov uas cov yeeb nkab welded yuav ua tau raws li qhov xav tau thaum nws qhov siab tsis dhau. Txawm hais tias qhov zoo dua yog qhov tseeb, qhov kev thuam ntawm seamless piping yog tias cov txheej txheem dov thiab ncab ua rau cov phab ntsa tsis sib xws piv rau cov tuab tuab ntawm cov ntawv hlau uas tau tsim los rau vuam.
Cov qauv kev lag luam uas tswj hwm kev tsim khoom thiab kev qhia tshwj xeeb ntawm ERW thiab seamless steel yeeb nkab tseem cuam tshuam cov kev xav. Piv txwv li, seamless piping yuav tsum tau rau ntau lub siab - siab, siab - kev siv kub hauv cov roj & roj, lub zog tsim hluav taws xob thiab kev lag luam tshuaj. Welded piping (uas feem ntau pheej yig dua los tsim thiab dav dav) tau teev tseg thoob plaws txhua qhov kev lag luam ntev npaum li qhov ntsuas kub, siab thiab lwm yam kev pabcuam tsis pub dhau qhov ntsuas tau sau tseg hauv cov qauv siv tau.
Hauv kev siv cov qauv, tsis muaj qhov sib txawv ntawm kev ua haujlwm ntawm ERW thiab seamless steel yeeb nkab. Thaum ob qho tuaj yeem teev sib hloov tau, nws yuav tsis muaj txiaj ntsig los qhia txog seamless thaum pheej yig dua welded yeeb nkab ua haujlwm zoo sib npaug.
Kev yuav khoom zoo rau welded thiab seamless steel yeeb nkab
Ib qho tseem ceeb uas yuav tsum tau ua raws li cov khoom siv kav dej tau teev tseg rau ib qhov project yog cov phau ntawv qhia tshwj xeeb (xws li cov ntawv muab los ntawm ASTM, ASME, ANSI thiab API, thiab lwm yam) uas cov kws tsim khoom siv los coj cov kev qhia tshwj xeeb uas lawv sau tsuas yog cov npe yeeb nkab qib yam tsis muaj kev xa tawm txawm tias lawv tsim los ntawm ERW lossis seamless yeeb nkab raug tsim. Tsis yog txhua qib tuaj yeem tsim los ntawm ob qho tib si.
Piv txwv li, muaj peev xwm sib xyaw ua ke- tuaj yeem tshwm sim yog tias tus kws ua haujlwm qhia cov yeeb nkab welded nrog lub taub loj sab nraud thiab phab ntsa tuab yam tsis paub tias nws yuav tsis tuaj yeem tsim nws. Qhov kev ua yuam kev no yuav zoo li tsis tau pom dua kom txog rau thaum qhov kev txiav txim yuav muab tso rau, thaum lub sijhawm tus neeg xa khoom yeeb nkab yuav ceeb toom rau tus neeg siv khoom tias qhov kev txiav txim tsis tuaj yeem ua tiav raws li sau tseg.
Tsis tas li ntawd, kev nkag siab zoo ntawm cov qauv kev lag luam tuaj yeem ua rau kev txuag nqi. Cov qauv A106 thiab A53 carbon steel yeeb nkab yog ib qho piv txwv zoo. Hauv kab lus no, peb tham txog yuav ua li cas cov yeeb nkab ua raws li qhov qubyuav tsumyuav seamless thaum yeeb nkab ua raws li tom kawg tuaj yeem yog seamless lossis welded. Piv txwv li, yog tias tus kws ua haujlwm yuav tsum ua raws li A53 tus qauv ntawm ib qhov project, nws tseem yuav muaj qhov hloov tau yooj yim los xaiv hom twg los qhia raws li qhov tshwj xeeb ntawm daim ntawv thov.
Qhia peb koj cov specs, thov ib nqe lus thiab tau txais koj cov yeeb nkab sai
Gnee nyob twj ywm tag nrho -cov khoom lag luam nrog cov khoom lag luam zoo tshaj plaws ntawm welded thiab seamless steel piping khoom hauv kev lag luam. Peb muab peb cov khoom lag luam los ntawm cov mills thoob ntiaj teb, ua kom cov neeg yuav khoom tau txais cov yeeb nkab qhov xav tau sai dua tsis hais txog kev txwv txoj cai.
Nyob rau hauv peb cov yeeb nkab steel buyer phau ntawv qhia, peb yuav pab koj taug qab cov txheej txheem piping procurement txij thaum pib kom tiav kom paub tseeb tias koj tau txais yam koj xav tau sai li sai tau thaum lub sij hawm yuav. Yog tias qhov kev yuav cov kav dej yog nyob rau hauv koj lub neej yav tom ntej, thov ib daim ntawv tsocai. Peb yuav muab ib qho uas tau txais koj raws nraim cov khoom koj xav tau - nrawm.
