Hluav taws xob-Vuam tsis kam (ERW), kuj paub dav tias yog siab - zaus kuj welding (HFW), yog ib tug nruam tsim txheej txheem rau longitudinal welded hlab thiab hollow seem. Pav ca steel strips tau nce dov- ua rau hauv cov duab tubular, thiab siab - zaus hloov tam sim no heats ob qhov sib txuas ntawm cov npoo npoo. Squeeze rolls siv cov tshuab forging siab kom ua tiav metallurgical bonding yam tsis muaj cov hlau muab tub lim. ERW thev naus laus zis tau dhau los ua cov txheej txheem tsim khoom tseem ceeb rau cov kav hlau, square thiab cov duab plaub hollow profiles thoob plaws ntau qhov kev lag luam, suav nrog kev tsim kho, kev tsim khoom, kev thauj mus los, steel - cov pas dej da dej, cov khoom siv tsheb thiab kev tsim kho vaj tse.
Piv nrog rau cov yeeb nkab sib tw- ua cov txheej txheem xws li seamless yeeb nkab ntau lawm, submerged- arc vuam (SAW), thiab TIG/MIG ntev- seam vuam, ERW muab cov khoom tshwj xeeb hauv kev ceev ceev, cov khoom yield, qhov tseeb, kev tswj tus nqi thiab kev hloov pauv hloov pauv. Daim ntawv no qhia txog cov txheej txheem tseem ceeb, kev lag luam thiab kev ua haujlwm zoo ntawm ERW hlab thiab ERW cov kab ntau lawm. Nws kuj piav qhia txog cov xwm txheej uas tsim nyog thiab qhia txog qee yam kev txwv cov txheej txheem, pab engineers, procurement specialists thiab Hoobkas txiav txim siab -cov neeg tsim los ntsuam xyuas seb ERW technology puas haum rau lawv qhov project.
Exceptionally siab nruam ntau lawm ceev
Ib qho ntawm qhov zoo tshaj plaws ntawm ERW yog nyob rau hauv nws qhov kev khiav hauj lwm ceev heev. Tsav los ntawm cov nyhuv ntawm daim tawv nqaij thiab qhov sib thooj, siab - zaus tam sim no concentrates cua sov tsuas yog nyob rau ntawm kab npoo. Vuam tiav hauv ob peb milliseconds. Rau cov pa roj carbon- cov raj hlau, kab ceev tuaj yeem ncav cuag li ntawm 30 m / min mus txog 120 m / min. Txawm hais tias stainless- qib steel uas yuav tsum tau txo qis rau kev tswj kom zoo, cov nqi ntau lawm tseem ua tau zoo dua arc-welding lwm txoj.
TIG lossis MIG vuam txheej txheem vam khom cov hlau los ntawm hluav taws xob arcs. Lawv vuam ceev yog txwv los ntawm arc stability thiab tshav kub conduction, feem ntau qis dua ob peb meters ib feeb. Submerged- arc vuam rau longitudinal seams kuj yog ib tug tsawg- ceev sib quas ntus txheej txheem. Seamless yeeb nkab tsim nyob ntawm kev tho thiab elongation txheej txheem, uas nws cov zis txhua teev tsis tuaj yeem sib tw nrog ERW txuas ntxiv.
High-kev ua haujlwm nrawm nrawm ua rau muaj txiaj ntsig loj rau kev lag luam loj- xav tau. Rau kev ua luam dej- cov chaw tsim khoom hauv pas dej ua ke, cov khoom siv loj loj ntawm cov kav tuav, cov txheej txheem thav duab thiab kev ncig- cov kav dej tuaj yeem ua tiav hauv lub voj voog luv. Thaum lub caij muag khoom siab tshaj plaws, ERW mills tuaj yeem nce cov zis tawm sai sai kom ua tiav cov ntawv xaj rov qab, zam cov khoom tsis txaus los ntawm qeeb thib peb - tog yeeb nkab xa khoom.
Kev siv cov khoom siv zoo heev thiab cov txiaj ntsig siab
ERW tube millspib los ntawm slit steel coils. Cov khoom siv raw yog tiaj sawb steel precisely slitted rau phiaj dav. Tsuas yog cov hlau tsis tshua muaj tshwm sim nyob rau hauv daim ntawv ntawm sab nraud thiab sab hauv weld flash, uas tuaj yeem sau thiab rov ua dua li cov khoom seem. Tag nrho cov khoom tawm los ib txwm ncav cuag 97% -98.5%.
Seamless yeeb nkab tsim tsim cov khoom pov tseg ntawm ob lub yeeb nkab kawg thaum tho, elongation thiab sizing. Cov phab ntsa tsis sib xws nyob ze ntawm cov npoo npoo yuav tsum tau txiav thiab muab pov tseg. Cov pa arc-welded yeeb nkab kuj tsim cov khib nyiab ntau dua. Rau cov lag luam uas siv cov raj ntau ntau, cov khoom siv siab - siv ncaj qha txo cov nqi khoom siv. Rau kev ua luam dej- pas dej ua ke cov chaw tsim khoom tsim 304 lossis 316L stainless- cov kav hlau, cov khoom siv raw{10}} cov nqi siv nyiaj ntau tshaj plaws ntawm tag nrho cov kev siv nyiaj. Kev poob qis qis ua rau muaj txiaj ntsig kev lag luam ntau dua li ntev - kev tsim khoom.
Stable dimensional precision thiab zoo ib yam geometry
Txij li thaum ERW sib xyaw ua ke txias yob txoj kev, nyem forging thiab xa tawm -weld sizing dhau, cov hlab tiav tau txais kev ruaj siab rau sab nraud, phab ntsa thickness, ncaj thiab ovality. Yob- tsim cov cuab yeej tswj hla- ntu geometry precisely. Qhov sizing thiab straightening stands ntxiv kho me deformation tom qab vuam.
Phab ntsa-thickness uniformity yog lwm qhov tseem ceeb. Cov phab ntsa tuab ntawm ERW kav dej tuaj ncaj qha los ntawm cov khoom siv hlau. Niaj hnub nimno slitting kab lav zoo ib yam strip thickness hla tag nrho cov kauj ntev. Hauv qhov sib piv, cov kav dej seamless inevitably tso saib phab ntsa-thickness deviation tau txais los ntawm cov txheej txheem tho. Qhov kom zoo dua no ua rau ERW cov khoom zoo tagnrho rau cov khoom uas yuav tsum tau khoov tom ntej, xuas nrig ntaus thiab polishing. Rau kev ua luam dej- pas dej ua ke thiab cov guardrails, cov qhov ntev sib xws ua kom muaj kev sib hloov thaum lub sij hawm ntawm - qhov chaw sib dhos thiab xa cov khoom zoo tom qab polishing.
Nqaim cua sov- thaj tsam cuam tshuam thiab tswj tau qhov kev ua haujlwm vuam
Hauv ERW-HFW txheej txheem, cov cua sov ua kom pom tseeb ntawm ob qhov sib koom ua ke. Lub cev yeeb nkab tseem ceeb nyob ze ntawm - qhov kub thiab txias. Yog li ntawd, lub tshav kub- cuam tshuam cheeb tsam (HAZ) yog nqaim heev. Base-metal microstructure thiab mechanical zog yog khaws cia ntau.
Rau stainless-steel daim ntaub ntawv xws li ua luam dej- pas dej ua ke Cheebtsam raug cov tshuaj chloride-muaj dej, ntxiv inline solid- tov annealing khoom yuav nruab. Cov cua kub ceev ceev thiab quenching rov qab corrosion-ua hauj lwm zoo ntawm weld seams thiab tshem tawm chromium carbide nag lossis daus. Txawm hais tias cov raj seamless tsis muaj vuam seam, lawv cov nqi tsim khoom tag nrho rau nyias -wall stainless- cov khoom siv hlau yog qhov siab heev.
Nws yuav tsum tau muab sau tseg tias weld zoo nyob ntawm hnyav parameter tuning. Nrog lub zog tsim nyog, nyem lub siab thiab kab nrawm, ERW welds ua tiav cov khoom siv sib txuam nrog cov hlau. ERW cov kav dej tuaj yeem dhau qhov kev sim hydrostatic, khoov thiab flattening xeem raws li teev los ntawm cov qauv thoob ntiaj teb.
Dav yooj rau cov khoom specifications
Ib qho ERW cov kab ntau lawm tuaj yeem tsim cov raj puag ncig thiab hloov mus rau square lossis lub voj voos hollow seem los ntawm kev sib hloov yob- ua cov cuab yeej. Yog tias tsis hloov lub tshuab loj loj, cov tuam txhab tsim khoom tuaj yeem tsim ntau yam ntawm cov kab npoo sab nrauv thiab phab ntsa - tuab ua ke. Qhov kev hloov pauv no haum rau cov lag luam uas ntsib ntau qhov kev txiav txim siab, xws li ua luam dej- cov chaw tsim khoom hauv pas dej ua ke tsim cov kav tuav, cov ncej thiab cov kav dej hauv ntau qhov ntau thiab tsawg.
Piv nrog seamless mills, uas xav tau cov cuab yeej sib txawv rau txhua txoj kab uas hla, ERW paub txog kev hloov pauv los ntawm yob- teeb hloov. Cov kab ERW niaj hnub no txhawb nqa sai - hloov cov cuab yeej siv kom txo lub sijhawm teeb tsa. Cov tuam txhab lag luam tsis muaj kev vam khom rau sab nraud steel - cov neeg xa khoom yeeb nkab uas muaj qhov tsawg kawg nkaus - xaj- kom muaj nuj nqis. Lawv tuaj yeem npaj me me -batch ntau lawm rau tsis yog- tus qauv tshwj xeeb qhov ntev raws li qhov xav tau.
Cov txiaj ntsig kev lag luam zoo hauv huab hwm coj- ntim ntau lawm
Los ntawm qhov kev xav ntawm tag nrho - tus nqi accounting, ERW qhia tau hais tias tus nqi zoo nyob rau hauv huab hwm coj- cov xwm txheej tsim khoom. Ua ntej, raw- cov khoom siv tau yooj yim: cov chaw tsim khoom yuav cov hlua hlau ncaj qha los ntawm cov chaw pabcuam steel, txiav tawm cov nyiaj tau los ntawm cov tub lag luam nruab nrab. Qhov thib ob, kev ua haujlwm siab - nrawm txo tus nqi zog rau ib - tuj tawm. Ib pawg neeg tsim khoom tuaj yeem tswj hwm tag nrho cov kab txuas ntxiv. Thirdly, kev siv hluav taws xob ib kilogram ntawm cov yeeb nkab tiav yog nruab nrab, tshwj xeeb tshaj yog piv nrog cov tho kub rau cov raj seamless.
Rau kev ua luam dej-pas dej- cov khoom lag luam nrog cov kav dej ruaj khov txhua xyoo, kev nqis peev hauv ERW zeb tuaj yeem txo cov khoom siv tag nrho. Raws li qhov tsim nyog - teev cov xwm txheej, rov qab los- ntawm - kev nqis peev tuaj yeem ua tiav hauv ob peb xyoos. Rau nyias -wall stainless-steel tubing, ERW tus nqi superior yog qhov pom tseeb dua, raws li nyias -cov kav dej seamless muaj cov nqi lag luam siab heev.
Txawm li cas los xij, cov txiaj ntsig kev lag luam tsuas yog tshwm sim thaum muaj cov khoom ntim txaus. Yog tias cov khoom siv qis qis, cov cuab yeej depreciation thiab cov nqi ua haujlwm yuav nce nqi tsev.
Dav adaptability rau ntau yam ntaub ntawv thiab ntau yam kev thov teb
ERW thev naus laus zis ua haujlwm zoo rau cov pa roj carbon steel, qis- alloy steel, galvanized steel, 304 thiab 316L stainless hlau thiab qee yam tsis yog -ferrous alloys. Nws daim ntawv thov scenarios npog ntau yam kev lag luam. Hauv kev tsim kho, ERW hollow seem ua haujlwm steel-cov qauv tsim purlins, kab thiab cov tswv cuab truss. Hauv kev thauj mus los ntawm cov kua dej, ERW cov kav dej tau dav siv rau qhov qis-thiab- nruab nrab- cov dej siab, dej ntws thiab dav dav - lub hom phiaj kav dej.
Rau kev ua luam dej- pas dej - ntsig txog kev tsim khoom, ERW tsim cov stainless- steel handrails, pas dej ua ke- txhawb nqa, SPA accessories thiab circulating- cov kav dej. Hauv kev lag luam tsheb, ERW profiles yog siv rau chassis thiab lub cev yam ntxwv. Cov cuab yeej siv tshuab kuj tseem siv ERW raj rau shafts, casings thiab cov qauv tiv thaiv. Nws tsim nyog hais tias ERW feem ntau yog taw qhia rau nruab nrab-thiab- qis- ua haujlwm siab. Rau ultra- siab- cov kav dej tseem ceeb, cov kev daws teeb meem ntawm cov yeeb nkab seamless tseem nyiam.
High℃ntawm automation thiab yooj yim kev koom ua ke nrog inline soj ntsuam
Niaj hnub ERW cov kab ntau lawm ua tiav tag nrho - txheej txheem automation los ntawm coil uncoiling, levelling, sib sau, vuam, scarfing, sizing rau ya- txiav kev sib cais. Cov neeg ua haujlwm feem ntau saib xyuas cov kev txwv tsis yog ua haujlwm hnyav. Ntau yam inline uas tsis yog-kev puas tsuaj- cov cuab yeej kuaj tau tuaj yeem ua ke rau hauv cov khoom ntws, suav nrog eddy- kev tshuaj xyuas tam sim no rau weld seam tsis xws luag thiab kuaj ultrasonic. Hauv -kab hydro- chaw nres tsheb kuj tseem tuaj yeem tsim kho rau cov kev xav tau ntawm cov kav dej.
Tiag -Lub sijhawm tshuaj xyuas pab txheeb xyuas qhov tsis xws ntawm vuam hauv online. Cov ntu tsis raug tuaj yeem raug cim lossis txiav tawm tam sim ntawd, zam qhov tsis yog - ua raws cov khoom lag luam ntws mus rau hauv cov txheej txheem qis. Rau kev ua luam dej- tej yaam num hauv pas dej ua ke, qhov twg tsis zoo -welds zoo yuav ua rau chloride-induced corrosion thiab tom qab- muag tsis txaus siab, kev soj ntsuam kev sib koom ua ke txhim kho tag nrho cov khoom ntseeg tau.
Kev txwv ntawm ERW thev naus laus zis (lub hom phiaj ntxiv)
Txhawm rau tswj xyuas lub hom phiaj, ntau qhov kev txwv yuav tsum tau hais. ERW cov khoom lag luam muaj cov hlua txuas ntev ntev, uas xav tau kev tswj xyuas nruj, tshwj xeeb tshaj yog rau corrosion{1}}resistant stainless- daim ntaub ntawv hlau. Cov khoom siv ntxiv xws li inline annealing thiab sab hauv -flash tshem tawm yuav tsum tau nqis peev rau siab - qhov kawg yuav tsum tau ua. Cov txheej txheem suits tas mus li ntev - raj ntau lawm; nws tsis haum rau ib qho - tawm ntawm cov khoom ua haujlwm nyuaj. Rau ultra-siab- cov kev pabcuam siab, cov kav dej seamless tseem yog qhov kev xaiv tseem ceeb.
Los xaus, qhov zoo ntawm ERW siab- zaus kuj vuam muaj xws li ultra- siab nruam ntau lawm ceev, siab cov khoom yield tus nqi, ruaj khov qhov ntev precision, nqaim tshav kub- thaj tsam cuam tshuam, hloov pauv tau - specification hloov dua siab tshiab, tus nqi zoo- kev ua tau zoo rau huab hwm coj - kev txhawb nqa kev tsim khoom thiab bume zoo saib xyuas.
Rau kev lag luam xws li ua luam dej- pas dej ua ke- khoom tsim, ERW mills tuaj yeem muab cov qauv tsim, cov kav hlau thiab qis - cov kav xa dej siab. Los ntawm kev siv cov khoom siv sib txuam xws li cov phuam qhwv caj dab thiab cov khoom siv hauv kab - kev daws teeb meem, cov tuam ntxhab tuaj yeem tsim cov hlau tsis muaj steel - steel tubing nrog txhim khu kev qha corrosion - welds.
Txawm hais tias ERW tsis tuaj yeem hloov pauv cov kav dej seamless rau qhov siab heev - qhov chaw ua haujlwm siab, nws cov kev ua tau zoo ua rau nws cov kev daws teeb meem zoo tshaj plaws rau tubular - cov khoom loj - ntau lawm. Kev nkag siab txog cov txiaj ntsig zoo no txhawb nqa kev txiav txim siab ntawm lub Hoobkas- cov neeg tsim khoom los ntsuas kev nqis peev, xaiv cov khoom siv tsim nyog thiab txhim kho cov khoom nyoos- cov tswv yim muab khoom raws li lawv cov kev lag luam tiag tiag.
