Welded steel kav yog cov ntaub ntawv tseem ceeb hauv kev lag luam niaj hnub no, dav siv hauv kev thauj mus los roj thiab roj, dej hauv nroog, choj engineering, marine tej yaam num, thiab cua fais fab kev tsim kho, thiab lwm yam.
Raws li kev sib txawv vuam thiab kev tsim, welded steel kav feem ntau yog muab faib ua ncaj seam welded steel kav thiab kauv welded steel kav. Ntawm lawv, ncaj seam welded steel kav muaj xws li welding kuj(ERW) steel kavthiab longitudinal submerged arc vuam(LSAW) steel kav. Cov welds ntawm hom steel yeeb nkab no yog longitudinal welds uas ncaj nraim raws cov yeeb nkab lub cev. Nyob rau hauv sib piv, kauv welded steel kav (SSAW) txais yuav nruam kauv txoj kev thiab submerged arc vuam tshuab, tsim kauv - zoo li tus welds uas yog inclined rau saum npoo ntawm cov yeeb nkab lub cev.
Txawm hais tias ob qho tib si ntawm cov yeeb nkab steel yog tsim los ntawm cov txheej txheem tsim thiab vuam thiab tuaj yeem ua tau raws li cov kev cai ntawm kev thauj mus los ntawm cov kua thiab cov khoom siv thauj khoom, lawv muaj qhov sib txawv hauv kev tsim cov qauv, kev faib tawm, cov txheej txheem tsim khoom, cov yam ntxwv ntawm kev ntxhov siab, kev ua haujlwm loj, thiab siv tau rau kev ua haujlwm. Nyob rau hauv qhov tseeb engineering thiab cov khoom siv, nws yog ib qho tseem ceeb heev kom paub qhov txawv qhov tseem ceeb ntawm qhov ncaj seam weld thiab kauv weld, uas yuav pab kom tsis txhob muaj kev xaiv tsis raug thiab ua rau muaj kev pheej hmoo ua haujlwm.
Lub ntsiab txhais thiab tsim txoj ntsiab cai txawv
1. Txoj cai ntawm longitudinal seam vuam
Ncaj seam welding yog hais txog cov txheej txheem welding uas ib qho kev sib txuas ncaj nraim yog tsim raws qhov ntev ntawm cov yeeb nkab steel. Cov khoom siv raw rau cov kav dej ncaj seam steel yog ib qho ruaj khov - dav steel phaj lossis steel sawb. Thaum lub sij hawm tsim cov yeeb nkab steel, cov hlau tiaj tiaj yog khoov thiab dov rau hauv cov yeeb nkab cylindrical blanks los ntawm ntau txoj kev sib tw. Ob qhov sib npaug ntawm cov hlau sawb tau ua raws li txoj kab ntev ntawm cov yeeb nkab lub cev, thiab tom qab ntawd qhov sib txawv yog welded thiab fused los ua ib qho zoo nkauj longitudinal ncaj seam. Rau nruab nrab thiab me me txoj kab uas hla ncaj seam kav, siab - zaus kuj welding (ERW) yog siv, qhov twg cov hlau strip npoo yog rhuab los ntawm siab - zaus tam sim no mus cuag instantaneous extrusion thiab melting, tsis tas yuav tsum tau muab tub lim hlau. Rau txoj kab uas hla loj tuab -cov kav dej ncaj seam, longitudinal submerged arc vuam (LSAW) yog siv, siv vuam hlau thiab flux rau kev nkag mus vuam. Txawm hais tias siv cov txheej txheem twg, lub vuam seam txuas mus rau tag nrho qhov ntev ntawm cov yeeb nkab lub cev.
2. Kauv VuamTxoj Cai
Kauv welding yog txheej txheem tshwj xeeb ntawm cov yeeb nkab tsim uas sib txuas ua ke nrog kev sib txuas txuas ntxiv thiab submerged arc vuam. Tsis zoo li txoj hlua khi ncaj nraim ntawm cov kav hlau ncaj nraim, cov hlua hlau yog pub rau hauv cov cuab yeej tsim ntawm lub kaum sab xis thiab txuas ntxiv dov mus rau hauv lub raj cylindrical tsis pub dhau los ntawm kauv dov, tsim kom muaj qhov sib txawv ntawm qhov sib txawv. Tom qab ntawd, lub submerged arc welding system ua txuas txuas txuas mus rau txoj kev kauv, thaum kawg tsim ib tug du thiab ntom kauv weld. Cov kauv welds yog inclined ntawm ib lub kaum ntse ntse thiab qhov ntev ntawm qhov vuam tshaj qhov ntev ntawm cov yeeb nkab. Lub hauv paus ntsiab lus tseem ceeb ntawm kauv vuam yog ua kom tiav - dav steel sawb mus rau hauv cov kav hlau ntawm cov kab sib txawv los ntawm kev kho lub kaum sab xis, ua tiav txoj kab uas hla hloov pauv uas tsis tuaj yeem ua tiav los ntawm kev sib txuas ncaj nraim.
Qhov sib txawv ntawm cov txheej txheem tsim khoom
1. Ncaj seam vuam txheej txheem
Cov txheej txheem ntau lawm ntawm cov kav dej ncaj seam yog yooj yim thiab siv tau zoo heev. Tag nrho cov txheej txheem suav nrog unwinding steel coils, flattening, ntug trimming, straightening, longitudinal vuam vuam, weld tiav, txias, sizing, straightening thiab ntev - txiav. ERW ncaj seam kav yog welded siv siab - zaus kuj cua sov, featuring ceev vuam ceev thiab siab ntau lawm efficiency. LSAW ncaj seam kav siv tuab steel phaj tsim thiab ntau dhau ntawm submerged arc vuam, nrog kev tswj nruj ntawm qhov raug thiab qhov tob tob. Cov txheej txheem tsim ntawm txoj kab ncaj nraim cov kab ntau lawm yog tsau, txoj kev sib sau ruaj khov, thiab qhov tseeb qhov tseeb yog siab. Txawm li cas los xij, nws cov khoom siv tau yooj yim yog txwv. Txhua steel sawb dav sib raug rau ib lub yeeb nkab txoj kab uas hla, yog li qhov ntau lawm ntawm ultra- txoj kab uas hla loj yog txwv los ntawm qhov dav ntawm cov hlau sawb.
2. Kauv vuam txheej txheem
Cov txheej txheem spiral welding siv cov dynamic txuas txuas txuas ntxiv thiab ob -sab submerged arc vuam. Nws cov txheej txheem ntws muaj xws li unwinding, strip straightening, meej kawg lub ntsej muag milling, adjustable - lub kaum ntse ntse sib sau, ob -sided submerged arc vuam ntawm ob sab hauv thiab sab nraud, weld seam polishing, ncig cua txias, kho qhov loj me, ya- txiav, thiab tag nrho weld seamdestructive. Qhov tseem ceeb tshaj plaws ntawm cov txheej txheem no yog lub kaum sab xis adjustable. Los ntawm kev hloov lub kaum sab xis ntawm cov hlau sawb, cov tuam txhab tsim khoom tuaj yeem tsim cov kav dej nrog cov kab sib txawv sab nraud uas siv tib cov khoom siv raw, ua kom muaj zog ntau lawm. Tag nrho cov txheej txheem tsim khoom yog tas mus li thiab tsis cuam tshuam, haum rau loj- nplai ntau lawm ntawm loj- kab, nruab nrab- tuab- cov kav dej. Txawm li cas los xij, cov txheej txheem sib sau thiab vuam muaj qhov yuav tsum tau ua rau qhov sib txuam, thiab kev tswj xyuas meej ntawm lub kaum sab xis, vuam ceev, tam sim no, thiab qhov hluav taws xob yog qhov tsim nyog kom tsis txhob muaj kev sib tsoo thiab kev sib tsoo.
Cov qauv sib txawv
1. Vuam qauv yam ntxwv
Rau ncaj seam welded kav, tsuas muaj ib tug longitudinal weld seam nyob rau hauv tag nrho cov qauv, nrog ib tug luv luv weld txoj kev thiab ib txoj kab ncaj nraim. Lub microstructure ntawm vuam yog ruaj khov. Lub tshav kub cuam tshuam cheeb tsam yog concentrated thiab nqaim, thiab tag nrho cov txheej txheem uniformity ntawm cov yeeb nkab lub cev yog zoo. Rau kauv welded kav, nruam kauv -zoo li tus weld seams raug saws. Piv nrog rau cov kav dej ncaj seam ntawm tib qhov kev qhia tshwj xeeb, qhov vuam seam ntev ntev dua. Qhov ntev weld seam tsub kom lub zuag qhia tag nrho welding cheeb tsam thiab theoretically kuj tsub kom muaj peev xwm ntawm welding tsis xws luag. Txawm li cas los xij, qhov txuas txuas txuas txuas txuas txuas txuas kom tsis txhob muaj qhov sib txuas hauv zos. Tsis tas li ntawd, cov kauv weld seam muaj cov yam ntxwv ntawm kev sib tshooj thiab txuas ntxiv, yog li txhim kho tag nrho cov qauv kev ncaj ncees ntawm cov yeeb nkab lub cev.
Dimension raug thiab ntau lawm yooj
Qhov ncaj seam welded yeeb nkab muaj qhov zoo dua qhov tseeb thiab qhov zoo ntawm qhov chaw. Cov txheej txheem tsim yog ruaj khov, nrog me me tolerances rau sab nraud txoj kab uas hla, phab ntsa thickness thiab roundness, du sab hauv thiab sab nrauv phab ntsa, thiab uniform straightness. Standardized forming parameters ua rau cov yeeb nkab ncaj seam zoo dua rau kev txhim kho thiab siab -cov kav dej yuav tsum tau ua. Txawm li cas los xij, qhov tsis zoo yog qhov kev hloov pauv tsis zoo, txwv los ntawm qhov dav ntawm cov hlau sawb, thiab nws tsis tuaj yeem hloov pauv hauv cov yeeb nkab diameters thaum lub sijhawm tsim khoom. Nyob rau hauv sib piv, cov kauv welded yeeb nkab muaj me ntsis qhov dav qhov tseeb tshaj qhov ncaj seam yeeb nkab, nrog me me ellipticity kam rau ua, tab sis muaj cov khoom ua tau zoo heev. Los ntawm kev kho lub kaum sab xis, ib qho tshwj xeeb ntawm steel sawb tuaj yeem tsim ntau ntau ntawm cov yeeb nkab diameters sib txawv, txo cov nqi pwm thiab txo cov voj voog ntau lawm rau kev cai loj - cov kav dej.
Technical Advantages thiab Limitations
1. Qhov zoo thiab qhov tsis zoo ntawm txoj hlua khi ncaj nraim
Ncaj seam welding muaj qhov zoo ntawm kev ceev vuam ceev, kev ua haujlwm siab, cov khoom tsim nyog tau txais txiaj ntsig, kev tsim vuam tsis tu ncua, nqaim tshav kub cuam tshuam rau cheeb tsam, thiab cov khoom ruaj khov. Nws yog tsuas yog siv rau hauv cov txheej txheem tsim khoom ntawm qhov nruab nrab - qhov loj ntawm txoj kab uas hla, nyias- phab ntsa thiab nruab nrab - tuab- cov khoom siv yeeb nkab. Cov welds tsawg dua tuaj yeem txo qhov tshwm sim ntawm qhov tshwm sim tsis zoo thiab pab txhawb kev tshuaj xyuas thiab kev saib xyuas. Nws qhov tsis zoo tseem ceeb yog nyob rau hauv kev ua haujlwm tsis zoo, tsis muaj peev xwm tsim tau rau cov kab loj loj, thiab muaj peev xwm ua kom muaj kev ntxhov siab tsis muaj zog. Nyob rau hauv ultra-siab siab thiab load hloov tej yam kev mob, ncaj seam welding yog yooj yim rau kev ntxhov siab concentration tsis ua hauj lwm.
2. Qhov zoo thiab qhov tsis zoo ntawm Kauv Welds
Cov txiaj ntsig tseem ceeb ntawm kauv vuam yog nyob rau hauv nws lub peev xwm los hloov kho txoj kab uas hla, kev ua haujlwm nyuaj siab dispersion zoo, muaj peev xwm tsim muaj peev xwm loj rau - txoj kab uas hla, thiab kev nyab xeeb ntawm cov qauv. Kauv welds tuaj yeem cuam tshuam kev tawg tawg thiab tsim kom ntev - nrug siab - kev thauj mus los. Qhov tsis zoo tseem ceeb yog lub sijhawm vuam ntev dua, qis dua ib zaug - tshuab ua haujlwm tau zoo, muaj kev pheej hmoo siab dua ntawm qhov tsis xws luag raws li qhov ntev vuam nce, thiab qhov tseeb me ntsis qis dua.
Qhov sib txawv ntawm cov ntawv thov kev lag luam
Vim lawv cov yam ntxwv ntawm kev ua tau zoo, ncaj seam welded kav thiab kauv welded kav tau tsim kom meej meej ciam teb ntawm daim ntawv thov nyob rau hauv industrial engineering. Ncaj seam welded kav yog dav siv nyob rau hauv lub nroog cov dej thiab tso dej, hluav taws xob tiv thaiv pipelines, tsim structural yeeb nkab piles, low- siab gas tsheb thauj mus los, thiab txhua yam khoom txhawb nqa pipelines. Vim lawv qhov siab qhov tseeb thiab ruaj khov vuam zoo, siab -qib ERW thiab LSAW ncaj seam kav kuj tsim nyog rau luv luv -siab siab- cov kav dej siab. Thaum cov kav dej kauv welded feem ntau yog siv rau kev hla - cov kav dej hauv cheeb tsam cov roj thiab cov kav dej, cov kav dej loj loj - txoj kab nruab nrab ntawm cov kav dej, cov kav dej hauv hiav txwv engineering, cov khoom siv hluav taws xob cua, thiab cov kav dej hydraulic, uas yog qhov ntev - kev thauj mus los.
Qhov sib txawv ntawm qhov ncaj seam vuam thiab kauv vuam lies nyob rau hauv sib txawv txoj kev trajectories, weld tis qauv, thiab lwm yam. Ncaj seam welding nta linear welds, siab seem raug, siab ntau lawm efficiency, thiab ib tug yooj yim qauv, thiab yog haum rau standardized, nruab nrab mus rau me me txoj kab uas hla, thiab siab -precision pipeline tej yaam num. Kauv welding ntiav inclined kauv welds thiab tuaj yeem hloov kho txoj kab uas hla. Nws yog qhov tseem ceeb hauv kev tsim kho loj - txoj kab uas hla, ntev - nrug, thiab siab - cov kav xa dej siab. Tsis yog ob qho tib si ntawm cov txheej txheem vuam tsis muaj qhov zoo tshaj plaws lossis qhov tsis zoo. Lawv daim ntawv thov tus nqi yog nyob ntawm qhov tseeb engineering tej yam kev mob, qib siab, yeeb nkab txoj kab uas hla specifications, thiab cov nqi siv nyiaj. Nrog rau kev txhim kho txuas ntxiv ntawm vuam automation thiab cov cuab yeej ntse tshawb nrhiav, qhov kev ua tau zoo ntawm ob qho yog maj mam nqaim. Nyob rau hauv lub neej yav tom ntej, kev ua kom zoo dua qub thiab sib txawv ntawm daim ntawv thov sib txuas ncaj nraim thiab muab kauv vuam thev naus laus zis yuav txhawb nqa qhov siab -kev txhim kho zoo ntawm cov yeeb nkab steel thiab cov kav dej engineering industries.
