Taw qhia: qhov essence ntawm ERW
Nyob rau hauv kev nkag siab ntawm kev nkag siab tshiab cov kav hlau vuam nyob qhov tseem ceeb tswv yim ntawm hluav taws xob tiv thaiv (ERW). Nkag siab lubERW cov yeeb nkab ntsiab lustsis yog tsuas yog hais txog hom yeeb nkab; Nws yog hais txog kev nkag siab zoo, siab {- Ceev cov txheej txheem uas tau tsim cov khoom siv ntev welded steel conduit.Hlob, ib daim ntawv tshaj tawm rauHluav taws xob tiv thaiv vuam, txhais ob qho tib si txoj kev thiab cov khoom lag luam - UbiquitousERW STEEL YEEBlossisERW TubeCov. Tus txheej txheem no ua rau qhov txawv ntawm nws tus kheej los ntawm kev siv hluav taws xob cov khoom siv ntawm cov hlau los tsim kev sib tw ntawm cov yeeb nkab ntev, tsis muaj qhov ntxiv ntawm cov muab tub lim hlau. Delving rau hauvDab tsi erw txhais tau tiasqhia tawm qhov txaus nyiam ntawm kev sib txhawb hluav taws xob ntawm hluav taws xob engineering, cov tshuab ua, thiab cov kev tshawb fawb metallurgical.Dab tsi yog erw yeeb nkab? Nws yog cov khoom yug los ntawm precisely tswj kev tswj tau lub zog hauv zos kub tsim los ntawm hluav taws xob tsis kam ua ke hauv siab. Kab lus no tsom rua kev rhuav tshemCov tswv yim tseem ceeb thiab cov txheej txheem sib txawvtom qabhluav taws xob tiv thaiv welded steel yeeb nkab, tshawb nrhiav nws lub hom phiaj txheej txheem, qib {{} {}} Nkag siab cov txheej txheem no yog Paramount rau kev txaus siab rau kev ntseeg tau thiab ua tau zoo uas uaERW kavindispensable thoob plaws kev lag luam tsis suav.
1. Lub hauv paus hauv lub hauv paus: harnessing tsis kam rau fusion
TusLub ntsiab lus ntawm ERW YEEByog kev khi rau hauv lub cev nqaij daim tawv nws siv tau: jolele cua kub, lossis cua sov tawm tsam. Cov ntsiab lus tseem ceeb nyob tom qabDab tsi erw txhais tau tiasyog siv cov kev tawm tsam uas hlau nthuav tawm mus rau qhov ntws ntawm hluav taws xob tam sim no. Thaum muaj hluav taws xob hluav taws xob hla dhau ntawm tus neeg saib xyuas (hauv qhov no, cov hlau sawb npoo), cov tsis kam pom ua rau lub zog kom muaj cua sov. Lub ci ntsa iab ntawm cov txheej txheem ERW lus dag nyob rau hauv kev tsom rau cov cua sov nomeejqhov twg nws yog xav tau - ntawm lub interface ntawm ob txoj kev sib tw ntev despes los ua tus weld leeg ntawm lubERW STEEL YEEB.
Tsis zoo li cov txheej txheem uas siv Arc sab nraud lossis nplaim taws rau cov khoom siv yaj,hluav taws xob tiv thaiv vuamgenerates tshav kubmus ncignyob rau hauv lub workpiece nws tus kheej. Tus nqi ntawm tshav kub (q) generated raws li joule txoj cai: Q= i 'Kuv yog qhov hluav taws xob tam sim no, thiab' t 'yog qhov tam sim no, thiab' t 'yog lub sijhawm tam sim no yog thov. ERW Mills tswj cov hloov no - tshwj xeeb yog thov kev kub tam sim no (Kuv) rau lub sijhawm luv luv (t) - kom ua tiav cov cua sov luv luv Qhov tseem ceeb yog ua tiav qhov kub siab txaus kom nqa cov yas ntoo kom haum, feem ntau tsuas yog hauv qab lossis ntawm lub taw tes melting, tsis muaj cua sov ntau dhau ntawm cov khoom siv. Qhov cua sov no minimizes cov cua sov {{5 5}} be} cuam tshuam cheeb tsam (Haz) thiab khaws cia cov qauv hlau ntawm cov kab weld. Ib txhij, cov neeg kho twj tseem ceeb siab yog thov kom sib haum rau cov cua sov sib cuam tshuam. Qhov kev siab no tsis pub cov yas lossis siv cov hlau ua ke, nthuav tawm cov impurities thiab oxides, txhawb kev sib txuas lus tuab, thiab tsim kom muaj kev sib txuas lus tuab, thiab tsim cov kev sib txuas lus tuab, Yog li ntawd,dab tsi yog erw yeeb nkab? Nws yog cov yeeb nkab uas cov leeg ntev ntev yog tsim los ntawm kev sib xyaw ua ke, hauv lub zog cua sov tsim los ntawm hluav taws xob tiv thaiv thiab cov khoom siv} kev cia siab nyob rau hauv kev kub siab.
2. Los ntawm coil rau lub tog raj kheej: cov txheej txheem tsim
Ua ntej tseem ceeb vuam lub sij hawm tuaj yeem tshwm sim, cov khoom siv raw yuav tsum tau hloov mus rau hauv cov duab kom yog. Cov lus ntawm kev tsim khoomERW kavPib nrog ib tug loj coil ntawm steel sawb, hu ua skelp. Cov kab mob skelp no feem ntau kub {1} {{{{{{{{{{}}}}}}}}}}}}}}} {ERW STEEL YEEBCov lus qhia tshwj xeeb (zoo li ASTM A53, API 5L, lossis ASTM A500). Lub kauj yog mounted ntawm ib tug uncoiler, pub cov kab txaij txuas ntxiv mus rau ntu sib sau ntawm cov pob zeb. Qhov no ntu sib sau muaj cov txheej txheem me me ntawm cov txheej txheem contoured, feem ntau naj npawb nyob rau hauv lub kaum ob, npaj nyob rau hauv ntau yam sawv.
Cov txheej txheem tsim yog nce zuj zus thiab ua tib zoo ua haujlwm. Pib rhuav tshem maj mam maj mam txhaj tshuaj sawb. Subsequent forming rolls, including fin passes, progressively bend the strip edges upwards and inwards with increasing curvature. Qhov precision ntawm no yob txoj kev sib ua ntu zus yog qhov tseem ceeb; Nws yuav tsum coj txoj kev sawb zoo thiab raug rau hauv ib qho ze - zoo tshaj cylindrical puabtsis muajUa rau Ntug Dej Yeem, Buckling, lossis ntau dhau txoj sia ua kom tawv. Lub hom phiaj kawg yog coj ob txoj hlua ntev ntev ntawm cov txheej txheem zoo tshaj plaws thiab sib tiv tauj rau vuam, npaj rau kev tswj hwm vuam, hauv qab kev tswj hwm tau ua los ntawm qhov kawg ua qaws yob. Kev tswj cov kab txaij dav dav dav, thickness, thiab ntug kev mob (huv si, square, thiab tsis muaj kev cuam tshuam thoob plaws hauv theem no, raws li muaj kev tsis zoo tag nrho tuaj yeem ua rau muaj kev tsis txaus ntseeg Weld zoo. Cov ntu tsim qhov tseem ceeb npaj cov conduit rau nws kev hloov pauv, shaping yav tom ntejERW Tubelossis lub cev yeeb nkab thiab ua kom cov npoo muaj qhov zoo tshaj plaws rau daim ntawv thov ntawm hluav taws xob tam sim no thiab Forging Force uas yuav tsim cov lus sib haisdab tsi yog erw yeeb nkabCov. Kev ua tau zoo thiab qhov tseeb ntawm niaj hnub no tsim qauv tso cai rau high} ceev hauv tus nqi- ua hauj lwm zoo ntawmERW kav.
3. Lub Neej Tseem Ceeb: Siab - zaus vuam thiab forging
Theem no yog lub siab heev ntawm cov txheej txheem erw, uas covLub ntsiab lus ntawm ERW YEEBLub cev muaj tseeb - kev tsim cov kev sib tw weld ntev. Raws li cov npoo zoo kawg nkaus ntawm lub tog raj kheej tsim tawm los ntawm ob qho kev sib tw kawg Ib txhij, ob lub ntsiab tseem ceeb tau thov: ib tug heev siab- muaj kev hloov pauv tam sim no (AC) thiab cov khoom siv.
Daim ntawv thov ntawmhigh - zausTam sim no (feem ntau nyob rau hauv cov ntau ntawm 100 khz mus rau 800 kHz, txawm tias niaj hnub niaj hnub siv 200-450 kHz) yog qhov kev nce qib sib txawv ua haujlwm ntau dua Vuam txoj kev vuam. Loj zaus ntxias ob qho kev cuam tshuam hluav taws xob: "cov nyhuv" thiab "cov nyhuv" sib thooj. " Cov nyhuv tawv rog yuam kev tam sim no mus ntws tshwm sim ntawmnplaimntawm tus neeg xyuas pib (cov txheej txheem steel). Cov nyhuv sib thooj ua ntej ntxiv concentrates no txaus siab rau kev ua tiav ntawm lubtig saib chawntawm ob sab npoo tau coj mus rau kev sib cuag. Qhov no dual daim ntawv ua kom ntseeg tau tias qhov siab tshaj plaws tiv thaiv qhov chaw ntawm Weld yuav tsum tau tsim, ua kom muaj cua sov, cua sov ceev ceev. Lub zog cua sov tsim cua (ncav tes kom tau txais kev kub ntxhov ntawm 1200 degree}}}}}} {me ntsis lossis melts ib txheej txheej nyias nyias.
Concurrently, ntau yam siv tshuab siab tau thov los ntawm kev sib tw vuam thiab txhawb nqa yob. Qhov kev ua siab no ua rau ntau lub zog tseem ceeb: nws ua rau cov yas yas lossis cov ntoo hlau rau hauv qhov chaw sib cuag; Nws mus pov tseg oxides, nplai, thiab cov kis tsis huv los ntawm lub interface (ua yeeb yam zoo li ib tog); Thiab nws yooj yim rau cov khoom - lub xeev diffusion bonding lossis fusion tsim nyog los tsim ib homogeneous, dense weld. Kev sib xyaw ua ke ntawm precisely tsom iav kub thiab siab forging siab tsim lub sib txuas metallurgical sib tw hla tag nrho ntug interface, ua rau lub tog raj kheej ua rau ib qho txuas ntxivhluav taws xob tiv thaiv welded steel yeeb nkabCov. Qhov kev nrawm ntawm cov txheej txheem no yog qhov zoo tshaj plaws - vuam nrawm muaj peev xwm ntawm 20 metres ib feeb rau nyias-} Cov raj ntsa hauv qab, qhia txog kev ua tau zoo rauDab tsi erw txhais tau tiasrau ntau ntau lawm. Qhov zoo tshaj ntawm Weld, nws txoj kev ncaj ncees, microstructure, thiab kev ywj pheej los ntawm tsis muaj kev sib txawv lossis suav nrog kev ua haujlwm ntawm qhov kawgERW STEEL YEEB.
4. Ncaws pob: Weld kev kho, sizing, thiab kuaj
Qhov tsim ntawm Weld Seam tsis yog qhov kawg ntawm cov txheej txheem erw. Ob peb qhov tseem ceeb ua tiav cov kauj ruam yog qhov tseem ceeb kom hloov lub tog raj kheej welded rau hauv kev ua lag luam - npaj txhijERW YEEB NKABRooj sablaj qhov chaw, tshuab, thiab cov qauv zoo. Tam sim ntawd tom qab vuam, thaum cov hlau tseem kub thiab muag, sab nraud weld hlaws lossis "flash" yog feem ntau muab tshem tawm. Cov flash no yog ntau cov khoom siv saws tawm thaum lub sijhawm forging. Cov cuab yeej ua phem, feem ntau yog kev sib cav lossis ua kom haum cov cuab yeej, txiav cov flash flash flush nrog cov dej sab hauv thiab sab nraud ntawm cov yeeb nkab. Cov kauj ruam no yog qhov tseem ceeb rau kev ua tiav lub ntsej muag sab hauv thiab sab nraud sab nraud, tseem ceeb rau ntau cov ntawv thov, txheej adhesion, lossis kev ua kom zoo nkauj. Nws tseem tshem tawm cov kev ntxhov siab kev ntxhov siab lossis chaw rau kev pib corrosion.
Ua raws li kev tshem tawm nyem, cov yeeb nkab nkag mus rau ntu sizing. Ntawm no, cov yeeb nkab hla dhau ntawm cov kab kev ua kom txias txias -} sizing yob tau teem rau hauv ntau cov sawv ntsug. Cov qaws no thov tswj cov zog compressive, txias {3} Ua haujlwm cov yeeb nkab kom ua tiav cov yeeb nkab kom ua tiav nws sab nraud ntawm lub cheeb (OD) nrog kev thev naus laus zis tawm mus sab nraud. Lawv kuj tseem ua kom pom zoo zoo heev (txo ovality) thiab ncaj raws tag nrho ntev. Cov txheej txheem sizing imparts qhov tseeb thiab xwm yeem uas yog qhov tseem ceeb ntawm kev ua tau zooERW Hlisthiab kav dej. Rau qee qhov tshwj xeeb thiab cov qhab nia loj, tshwj xeeb tshaj yog weld txoj kev nruj yuav tsum tau siv los yog ua kom sov online kev kho mob tam sim ntawd tom qab sizing. Qhov no feem ntau cuam tshuam nrog cov khoom siv cua sov hauv weld ua raws li los ntawm kev ua kom txias thiab txhim kho cov khoom siv coarse, tshwj xeeb tshaj plaws thiab cuam tshuam cov kev cuam tshuam hla ntawm Weld.
Tom qab ntawv yeeb nkab tom qab ntawd txiav kom teev ntev uas siv siab - ceev flying saws los yog lwm cov tej tshuab synchronized nrog cov yeeb nkab synchronized nrog cov yeeb nkab txav. Thaum kawg, qhov txiav ntev uas cov tseem ceeb ua tiav thiab kev kuaj xyuas cov txheej txheem. Cov no suav nrog kev sib tw xaus (squaring cov yeeb nkab xaus), hydrostatic kev sim siab (siv}} Qhov khuam), kev pom kev pom, thiab cov khoom siv uas muaj peev xwm (xws li cov kua roj vanish, roj, lossis pleev xim) rau kev tiv thaiv. Tsuas yog tom qab dhau cov tshev nruj me me no puas yog cov khoom lag luam muaj txhij txhuaLub ntsiab lus ntawm ERW YEEB- Lub siab - Zoo, txhim khu kev qhahluav taws xob tiv thaiv welded steel yeeb nkabNpaj rau nws cov ntawv thov npaj.
Xaus: Lub encentered fusion
Txhais tau hais tias ERW Transcends tsuas yog npe ib hom yeeb nkab; Nws cuam tshuam nrog kev nkag siab zoo me ntsis engineered txheej txheem ntawm kev tswj cov hluav taws xob cua sov thiab tshuab kev lom zem. TusERW cov yeeb nkab ntsiab lusYog hauv paus hauv lub hauv paus ntsiab lus ntawm joule cua sov - hloov hluav taws xob hluav taws xob mus rau hauv precisely zos hluav taws xob thermal lub zog ntawm cov leeg sib cuam tshuam.Dab tsi yog erw yeeb nkab? Nws yog cov khoom lag luam ntawm kev hloov pauv ntawm lub tog raj kheej mus rau hauv lub zog ua kom muaj cua sov, tom qab ntawd nrawm {}} lub xeev lossis Fusion Weld. Cov kauj ruam tom ntej - Flash tshem tawm, txias sizing rau kev kho kom zoo nkauj, muaj peev xwm sim ua kom zoo dua qub, thiab kev sib xyaw ua ke kom meej meejERW STEEL YEEBRaws li cov kev ua tau zoo. Qhov no txuas ntxiv, siab {- ceev txheej txheem, muaj peev xwm ntawm kev ua kom zoo ib yam, siab-} zooERW Hlisthiab cov kav dej nyob hauv ntau heev, yog cov essence ntawmDab tsi erw txhais tau tiashauv kev lag luam niaj hnub. Nws yog qhov timerament rau engineering ingenuenity, muab txoj kev conduit hauv lub neej - tushluav taws xob tiv thaiv welded steel yeeb nkab- Tias qhov kev tso siab rau cov cuab yeej tseem ceeb thiab kev tsim khoom thoob ntiaj teb. Cov tswv yim tseem ceeb thiab cov txheej txheem ntawm ERW ua kom pom zoo rau cov kav dej uas tsim cov pipes thiab cov kab ke ntawm peb lub ntiaj teb ua kom huv.
