Kev ua tiav thiab siv tau zoo ntawm cov yeeb nkab lossis cov yeeb nkab yuav tsum tau ua kom zoo dua ntawm 10,000 cov ntsiab lus, suav nrog cov khoom siv tu.Muaj ntau yam ntawm cov khoom txav hauv txhua hom zeb thiab txhua yam khoom siv peripheral, ua raws li cov chaw tsim khoom pom zoo rau kev tiv thaiv kev saib xyuas lub sijhawm tsis yooj yim.Photo: T & H Lemont Inc.
Editor's Note: Qhov no yog thawj feem ntawm ob feem series ntawm optimizing raj los yog yeeb nkab mill operations.Nyeem qhov thib ob.
Kev tsim cov khoom siv tubular tuaj yeem ua haujlwm hnyav, txawm tias nyob rau hauv qhov zoo tshaj plaws ntawm cov xwm txheej.Factories yog complex, yuav tsum tau ntau yam kev tu, thiab nyob ntawm seb lawv tsim dab tsi, kev sib tw yog hnyav.Ntau cov yeeb nkab hlau tsim tau nyob rau hauv lub siab loj heev los ua kom lub sijhawm ua haujlwm kom tau txais txiaj ntsig zoo tshaj plaws, nrog rau lub sijhawm tseem ceeb me ntsis rau kev tu txhua hnub.
Tsis muaj qhov xwm txheej zoo tshaj plaws rau kev lag luam niaj hnub no. Cov khoom siv kim heev thiab cov khoom xa tuaj ib nrab tsis yog qhov tsis tshua muaj.Tam sim no ntau dua li niaj hnub no, cov neeg tsim yeeb nkab yuav tsum siv sijhawm ntev thiab txo cov khoom seem, thiab tau txais cov khoom xa tuaj ib nrab txhais tau tias txo qis uptime.Shorter khiav txhais tau tias muaj kev hloov pauv ntau zaus, uas tsis yog kev siv lub sij hawm lossis kev ua haujlwm zoo.
"Lub sijhawm tsim khoom yog nyob ntawm tus nqi tam sim no," said Mark Prasek, North American Tubing Sales Manager ntawm EFD Induction.
Kev sib tham nrog cov kws paub txog kev lag luam txog cov lus qhia thiab cov tswv yim kom tau txais txiaj ntsig zoo tshaj plaws ntawm koj cov nroj tsuag tau qhia qee cov ntsiab lus rov tshwm sim:
Kev khiav ib tsob nroj ntawm qhov ua tau zoo tshaj plaws txhais tau tias ua kom zoo dua ntau yam, feem ntau ntawm kev cuam tshuam nrog lwm tus, yog li kev ua kom zoo ntawm cov nroj tsuag tsis tas yuav yooj yim. Lo Lus Dawb Huv ntawm yav dhau los The Tube & Pipe Journal tus sau xov xwm Bud Graham muaj qee qhov kev xav: "Ib lub raj zeb yog lub cuab yeej tuav."Nco ntsoov qhov kev tsocai no pab ua kom yooj yim.Kev nkag siab tias txhua lub cuab yeej ua haujlwm li cas, nws ua haujlwm li cas, thiab txhua lub cuab yeej cuam tshuam nrog lwm cov cuab yeej li cas yog li ib feem peb ntawm kev sib ntaus sib tua.Kua txhua yam kev tswj hwm thiab ua kom zoo yog lwm feem peb ntawm nws.Qhov thib peb kawg suav nrog cov neeg ua haujlwm kev cob qhia, cov tswv yim daws teeb meem, thiab cov txheej txheem kev khiav hauj lwm tshwj xeeb rau txhua tus yeeb nkab lossis cov yeeb nkab tsim tawm.
Thawj qhov kev txiav txim siab rau kev khiav ib lub zeb zoo yog zeb ywj siab.is cov khoom siv raw. Tau txais cov khoom siv ntau tshaj plaws los ntawm lub zeb txhais tau tias tau txais cov khoom siv ntau tshaj plaws los ntawm txhua lub coil pub rau lub zeb.Nws pib nrog kev txiav txim siab yuav.
coil length.Nelson Abbey, tus thawj coj ntawm Fives Bronx Inc. Abbey Products, tau hais tias, "Tube mills vam meej thaum lub coil ntev tshaj plaws.Machining luv coils txhais tau tias machining ntau coil kawg.Txhua lub coil kawg yuav tsum tau A pob tw, txhua lub pob tw weld tsim cov khoom seem.
Qhov nyuaj ntawm no yog cov coils uas ntev npaum li qhov ua tau tuaj yeem muag tau ntawm tus nqi them.Shorter coils tuaj yeem muaj nyob rau ntawm tus nqi zoo dua. Cov neeg yuav khoom yuav xav txuag qee cov nyiaj, tab sis qhov no tsis sib haum nrog qhov kev xav ntawm cov neeg ua haujlwm hauv pem teb.Zoo txhua tus neeg ua haujlwm hauv lub Hoobkas pom zoo tias tus nqi sib txawv yuav tsum muaj qhov tseem ceeb los ua kom muaj kev cuam tshuam ntau lawm cuam tshuam nrog kev lag luam hauv pem teb.
Lwm qhov kev txiav txim siab, Abbey tau hais tias, yog lub peev xwm ntawm lub decoiler thiab lwm yam kev txwv ntawm kev nkag mus rau qhov kawg ntawm lub zeb.Nws yuav tsim nyog los nqis peev hauv cov khoom siv muaj peev xwm ntau dua los tuav cov coils loj dua, hnyav dua los siv cov txiaj ntsig ntawm kev yuav cov coils loj dua.
Lub slitter kuj yog ib qho tseem ceeb, txawm hais tias qhov slitting yog ua tiav hauv tsev lossis sab nraud.Slitters muaj qhov hnyav tshaj plaws thiab txoj kab uas hla lawv tuaj yeem ua tau, yog li tau txais qhov zoo tshaj plaws match ntawm coils thiab slitters yog qhov tseem ceeb rau kev ua kom muaj zog tshaj plaws.
Hauv cov ntsiab lus, nws yog kev sib cuam tshuam ntawm plaub yam: qhov loj thiab qhov hnyav ntawm lub kauj, qhov tsim nyog dav ntawm lub slitter, lub peev xwm ntawm lub slitter, thiab lub peev xwm ntawm cov khoom siv inlet.
Coil dav thiab mob.Ntawm lub khw hauv pem teb, nws mus yam tsis tau hais tias cov coils yuav tsum muaj qhov dav dav thiab qhov ntsuas qhov zoo los ua cov khoom lag luam, tab sis kev ua yuam kev tshwm sim ib ntus.Millers feem ntau tuaj yeem them nyiaj rau strip widths me ntsis los yog loj dhau, tab sis qhov no tsuas yog ib qho teeb meem ntawm degree. Ceev faj rau qhov dav ntawm lub slit muls yog qhov tseem ceeb.
Cov kab mob ntawm cov sawb kuj yog qhov teeb meem tseem ceeb tshaj plaws.Qhov kev nthuav qhia ntug tsis sib xws, tsis muaj burrs lossis lwm yam tsis sib xws, yog qhov tseem ceeb rau kev tswj xyuas qhov sib npaug ntawm qhov ntev ntawm cov sawb, hais tias Michael Strand, tus thawj tswj hwm ntawm T&H Lemont.Initial coiling, slitting thiab rewinding kuj tuaj rau hauv kev ua si.Coils uas tsis tau ua tib zoo tuav cov txheej txheem tuaj yeem khoov duav. strip.
Cov cuab yeej sau ntawv "zoo pwm tsim ua kom muaj txiaj ntsig zoo tshaj plaws," said Stan Green, tus thawj coj ntawm SST Forming Roll Inc.Nws taw qhia tias tsis muaj ib lub tswv yim rau kev tsim cov raj, thiab yog li tsis muaj ib lub tswv yim rau pwm tsim. Rolling cov cuab yeej xa khoom sib txawv raws li lawv ua cov raj thiab yog li lawv cov khoom.Yields kuj txawv.
"Lub vojvoog ntawm cov yob nto yog hloov pauv tas li, yog li kev hloov pauv ntawm lub cuab yeej hloov pauv thoob plaws lub cuab yeej saum npoo," tau kawg, lub raj xa mus los ntawm lub tshuab tsuas yog ib qho nrawm xwb. Yog li ntawd, kev tsim tsim cuam tshuam rau cov khoom lag luam tsis zoo thaum lub cuab yeej tshiab, thiab nws tsuas yog hnyav dua li cov cuab yeej hnav, nws hais ntxiv.
Rau cov tuam txhab uas tsis ua raws li kev cob qhia thiab kev saib xyuas, kev tsim kho lub tswv yim los txhim kho kev ua haujlwm ntawm tsob nroj pib nrog cov hauv paus.
"Txawm li cas los xij ntawm cov qauv ntawm lub Hoobkas thiab cov khoom lag luam nws tsim, txhua lub Hoobkas muaj ob yam sib xws - cov neeg ua haujlwm thiab cov txheej txheem kev ua haujlwm," Abbey tau hais. Kev khiav lub Hoobkas raws li qhov ua tau yog teeb meem ntawm kev muab cov qauv kev cob qhia thiab ua raws li cov txheej txheem sau, nws hais.
Yuav kom tau txais txiaj ntsig zoo tshaj plaws ntawm cov nroj tsuag, los ntawm tus neeg teb xov tooj mus rau tus neeg teb xov tooj, hloov mus ua haujlwm, txhua tus neeg ua haujlwm yuav tsum siv cov txheej txheem kev teeb tsa thiab teeb meem.Txhua yam txheej txheem sib txawv feem ntau yog qhov tsis to taub, tus cwj pwm tsis zoo, shortcuts, thiab workarounds.Cov no ib txwm ua rau nws nyuaj rau khiav cov nroj tsuag kom zoo.Cov teeb meem no tej zaum yuav yog homegrown los yog qhia thaum tus neeg ua haujlwm cob qhia tsis muaj qhov sib txawv. kev paub.
Strand tau hais tias "Nws yuav siv sijhawm ntau xyoo los cob qhia tus neeg ua haujlwm lub raj raj, thiab koj yeej tsis tuaj yeem tso siab rau ib qho loj-haum-tag nrho txoj kev npaj," Strand hais.
Dan Ventura, tus thawj tswj hwm ntawm Ventura & Associates tau hais tias "Lub tshuab muaj ntau qhov txav mus los - txawm tias nws yog lub zeb nws tus kheej lossis cov khoom siv rau ntawm qhov nkag lossis qhov hluav taws xob kawg, lossis lub rooj ntaus, lossis koj muaj dab tsi - thiab kev tu lub tshuab niaj hnub yog qhov tseem ceeb. "
Strand pom zoo "Siv kev tiv thaiv kev saib xyuas kev saib xyuas yog qhov pib txhua qhov," nws hais.Yog tias tus tsim cov yeeb nkab tsuas yog teb rau cov xwm txheej kub ntxhov, nws tsis muaj kev tswj hwm.Nws nyob ntawm txoj kev hlub tshua ntawm kev kub ntxhov tom ntej. "
Ventura tau hais tias "Txhua yam khoom siv ntawm lub zeb yuav tsum tau ua kom zoo," Ventura hais tias "Tsis li ntawd, lub Hoobkas yuav tawm tsam nws tus kheej."
"Nyob rau hauv ntau zaus, thaum yob tshaj lawv lub neej muaj txiaj ntsig, lawv ua haujlwm hnyav thiab thaum kawg tawg," Ventura tau hais.
"Yog tias cov yob tsis tau khaws cia zoo nrog kev saib xyuas tsis tu ncua, lawv xav tau kev saib xyuas thaum muaj xwm txheej ceev," hais tias Ventura.Yog tias cov cuab yeej raug tsis saib xyuas, kho lawv yuav xav tau tshem tawm ob mus rau peb zaug ntawm cov khoom uas lawv xav tau tshem tawm, nws tseem yuav siv sijhawm ntev dua thiab raug nqi ntau dua.
Kev nqis peev hauv cov cuab yeej thaub qab tuaj yeem pab tiv thaiv kev kub ntxhov, Strand tau sau tseg.Yog tias cov cuab yeej nquag siv rau kev ua haujlwm ntev, ntau qhov seem yuav tsum tau siv ntau dua li cov cuab yeej siv tsis tu ncua rau kev ua haujlwm luv luv.Cov cuab yeej ua haujlwm kuj cuam tshuam rau qib reserves.Fins tuaj yeem tawm ntawm cov cuab yeej fin thiab vuam yob tuaj yeem cuam tshuam los ntawm cov cua sov ntawm lub thawv vuam, cov teeb meem uas tsis muaj kab mob plague rolls.
"Kev saib xyuas tsis tu ncua yog qhov zoo rau cov khoom siv, thiab kev sib raug zoo yog qhov zoo rau cov khoom uas nws ua," nws hais.Yog tias cov no tsis quav ntsej, cov neeg ua haujlwm hauv lub Hoobkas siv sijhawm ntau thiab ntau dua los ua kom nws.Lub sijhawm no tuaj yeem siv los ua cov khoom zoo, muag zoo tshaj plaws. Ob yam no yog qhov tseem ceeb heev thiab feem ntau saib xyuas lossis tsis saib xyuas uas, nyob rau hauv Ventura txoj kev pom zoo tshaj plaws, lawv muab cov nroj tsuag zoo tshaj plaws.
Ventura sib npaug zeb thiab khoom siv tu nrog kev tu lub tsheb.Tsis muaj leej twg yuav tsav tsheb rau kaum tawm txhiab mais ntawm kev hloov roj nrog cov log tsheb liab qab.Qhov no yuav ua rau muaj kev daws teeb meem kim lossis kev puas tsuaj, txawm tias cov nroj tsuag tsis zoo.
Kev tshuaj xyuas tsis tu ncua ntawm lub cuab yeej tom qab txhua qhov kev khiav yog qhov tsim nyog, nws hais tias. Cov cuab yeej tshuaj xyuas yuav qhia txog cov teeb meem xws li kab nrib pleb.Qhov kev puas tsuaj no tau pom sai li sai tau thaum lub cuab yeej raug tshem tawm ntawm lub zeb, es tsis yog tam sim ntawd ua ntej lub cuab yeej raug teeb tsa rau kev khiav haujlwm tom ntej, muab sijhawm ntau los tsim cov cuab yeej hloov.
"Qee lub tuam txhab ua haujlwm los ntawm kev teem sijhawm kaw," Green hais tias.Nws paub tias nws yuav nyuaj rau ua raws li lub sijhawm kaw hauv qhov xwm txheej no, tab sis nws tau taw qhia tias nws txaus ntshai heev.Shipping thiab freight tuam txhab uas muag muaj neeg coob dhau los yog tsis muaj neeg ua haujlwm, lossis ob qho tib si, cov khoom xa tuaj tsis raws sijhawm hnub no.
"Yog tias ib yam dab tsi tawg ntawm lub Hoobkas thiab koj yuav tsum tau xaj khoom hloov, koj yuav ua li cas kom tau txais nws?"nws nug.Tau kawg, huab cua freight yeej ib txwm muaj kev xaiv, tab sis nws muaj peev xwm muab kauv tus nqi shipping.
Mill thiab yob kev txij nkawm yog ntau dua li ua raws li lub sijhawm txij nkawm, tab sis kev sib koom ua ke ntawm kev txij nkawm nrog lub sijhawm tsim khoom.
Hauv tag nrho peb qhov chaw - kev ua haujlwm, kev daws teeb meem thiab kev saib xyuas, qhov dav thiab qhov tob ntawm cov kev paub dhau los.Warren Wheatman, tus lwm thawj ntawm T&H Lemont's Die Business Unit, hais tias cov tuam txhab uas tsuas muaj ib lossis ob lub mills los tsim lawv tus kheej cov raj feem ntau muaj tsawg dua cov neeg mob siab rau zeb thiab tuag tu.Txawm hais tias cov neeg ua haujlwm tu vaj tse muaj kev txawj ntse, lub tuam tsev me me muaj kev paub tsawg dua ntawm cov neeg ua haujlwm, qhov tsis zoo ntawm lub tuam txhab loj dua. lub chaw saib xyuas yuav tsum tau ua qhov teeb meem thiab kho lawv tus kheej.
Strand tau hais ntxiv tias kev cob qhia rau kev ua haujlwm thiab kev saib xyuas tam sim no tseem ceeb dua li yav dhau los.Qhov nthwv dej ntawm cov nyiaj laus cuam tshuam nrog kev laus ntawm cov menyuam yaus boomers txhais tau hais tias pab pawg neeg paub tias ib zaug rocked tuam txhab uas muag tau qhuav lawm.Thaum ntau cov tube tsim khoom tseem tuaj yeem tso siab rau cov khoom siv kev sib tham thiab kev tawm tswv yim, txawm tias qhov kev txawj ntse no tsis muaj ntau npaum li nws ib zaug thiab yog shrinking.
Cov txheej txheem vuam yog ib qho tseem ceeb ib yam li lwm cov txheej txheem uas tshwm sim thaum tsim cov yeeb nkab lossis cov yeeb nkab, thiab lub luag haujlwm ntawm lub tshuab vuam tsis tuaj yeem raug overestimated.
Prasek hais tias "Hnub no, kwv yees li ob feem peb ntawm peb qhov kev txiav txim yog rau retrofits," Prasek hais tias.Kev hla dhau yog tus tsav tsheb tseem ceeb tam sim no. "
Nws hais tias ntau tus tau qab yim lub hom phiaj vim tias cov khoom siv raw tuaj lig. "Feem ntau thaum cov khoom siv thaum kawg tawm, cov welder poob qis," nws hais.Ib tug xav tsis thoob ntawm cov tube tsim txawm siv tshuab raws li lub tshuab nqus tsev vacuum technology, uas txhais tau hais tias lawv siv cov tshuab uas muaj tsawg kawg yog 30 xyoo rau kev tu.
Qhov kev sib tw rau cov neeg tsim khoom siv yeeb nkab uas tseem siv lawv yog qhov lawv muaj hnub nyoog li cas.Lawv tsis poob kev puas tsuaj, tab sis degrade maj mam.Ib qho kev daws teeb meem yog siv cov vuam siv hluav taws xob tsawg thiab khiav lub zeb ntawm qhov qeeb qeeb kom them nyiaj, uas tuaj yeem yooj yim zam lub peev nyiaj ntawm kev nqis peev hauv lub tshuab tshiab.Qhov no tsim qhov tsis tseeb tias txhua yam zoo.
Kev nqis peev hauv qhov tshiab induction vuam fais fab tuaj yeem txo cov nroj tsuag kev siv hluav taws xob ntau, Prasek tau hais tias.Qee lub xeev-tshwj xeeb yog cov neeg coob thiab cov kab sib txuas nyuaj-muab cov nyiaj ua se tau zoo rau kev yuav khoom siv hluav taws xob zoo.
Prasek tau hais tias "Lub tshuab vuam tshiab feem ntau ua haujlwm tau zoo dua li qub, thiab nws tuaj yeem txuag tau ntau txhiab daus las los ntawm kev muab lub peev xwm vuam ntau dua yam tsis muaj kev hloov kho hluav taws xob," Prasek tau hais.
Kev sib xyaw ua ke ntawm induction coil thiab cov resistor kuj tseem ceeb heev.John Holderman, tus thawj coj ntawm EHE Con​​sumables, hais tias ib qho kev xaiv kom raug thiab ntsia induction kauj muaj qhov zoo tshaj plaws ntawm cov vuam yob, thiab nws yuav tsum tau tswj kom zoo thiab zoo ib yam clearance nyob ib ncig ntawm lub raj.
Txoj haujlwm ntawm lub blocker yog qhov yooj yim - nws thaiv qhov ntws ntawm cov hluav taws xob tam sim no, coj nws mus rau ntawm ntug ntawm lub sawb - thiab nrog rau txhua yam ntawm lub zeb, qhov chaw yog qhov tseem ceeb, nws hais tias qhov tseeb qhov chaw yog nyob rau ntawm lub apex ntawm lub vuam, tab sis qhov tsis yog tib qho kev txiav txim siab.Installation yog qhov tseem ceeb.Yog hais tias nws yog fastened mus rau ib tug mandrel uas tsis txaus los txhawb nws txoj hauj lwm ntawm lub rigidity. cev.
Ua kom zoo dua ntawm cov qauv hauv vuam siv tau tsim, lub tswv yim sib cais coil tuaj yeem muaj kev cuam tshuam loj rau zeb uptime.
Haldeman tau hais tias "Cov kab loj loj tau siv cov qauv sib cais ntev ntev," Haldeman tau hais tias "Hloov ib qho ntawm induction kauj yuav tsum tau txiav cov yeeb nkab, hloov cov kauj thiab rov xov nws," nws hais.
Nws tau hais tias "Lawv tau siv rau hauv cov dov loj loj, tab sis nws tau siv qee qhov kev tsim vaj tsev zoo nkauj los siv txoj cai no rau cov coils me me," nws hais. Txawm tias ua haujlwm tsawg dua rau cov chaw tsim khoom.
Hais txog cov txheej txheem txias ntawm cov blocker, cov neeg tsim cov yeeb nkab muaj ob txoj kev xaiv ib txwm: lub Hoobkas lub hauv paus cua txias system los yog ib qho kev sib cais ntawm cov dej, uas yuav kim heev.
Holderman hais tias, "Nws yog qhov zoo tshaj plaws kom txias cov resistor nrog cov coolant huv si," Holderman said.Vim li no, kev nqis peev me me hauv lub tshuab lim dej tshwj xeeb rau cov tshuab cua txias tuaj yeem ua rau lub neej choke.
Lub tshuab coolant feem ntau yog siv rau ntawm lub choke, tab sis lub zeb coolant khaws cov hlau nplua.Txawm tias txhua qhov kev siv zog los ntxiab nplua nyob rau hauv lub hauv paus lim los yog ntes lawv nrog lub hauv paus hlau nplaum, qee cov neeg hla thiab nrhiav lawv txoj kev mus rau qhov teeb meem.Qhov no tsis yog qhov chaw rau cov hmoov hlau.
"Lawv ua kom sov hauv qhov chaw induction thiab hlawv lawv tus kheej rau hauv cov khoom siv hluav taws xob thiab cov ferrite, uas ua rau tsis ua hauj lwm ntxov thiab tom qab ntawd kaw los hloov cov resistor," Holderman hais tias.