Traditional hydraulic kab siv ib qho kawg flared thiab feem ntau yog tsim los rau SAE-J525 los yog ASTM-A513-T5, cov ntaub ntawv uas nyuaj rau lub hauv paus tsev.
Editor's Note: Cov kab lus no yog thawj zaug hauv ob ntu ntawm kev ua lag luam thiab kev tsim cov kua dej hloov kab rau kev siv siab siab.Qhov thib ib yog tham txog qhov xwm txheej ntawm cov khoom siv hauv tsev thiab txawv teb chaws cov khoom lag luam pa hauv paus.Qhov thib ob sib tham txog cov ntsiab lus ntawm cov khoom lag luam tsawg dua lub hom phiaj ntawm kev ua lag luam no.
Tus kab mob COVID-19 tau ua rau muaj kev hloov pauv tsis txaus ntseeg hauv ntau qhov kev lag luam, suav nrog cov kav hlau xa khoom thiab cov txheej txheem tsim cov yeeb nkab.Los ntawm qhov kawg ntawm 2019 txog rau tam sim no, kev lag luam tubing tau ntsib kev cuam tshuam kev hloov pauv rau ob lub Hoobkas thiab kev lag luam.
Cov neeg ua haujlwm tam sim no tseem ceeb dua li yav dhau los.Qhov kev mob kis thoob ntiaj teb no yog kev kub ntxhov ntawm tib neeg, thiab qhov tseem ceeb ntawm kev noj qab haus huv tau hloov pauv kev ua haujlwm-lub neej-ua si sib npaug rau feem ntau, yog tias tsis yog tag nrho.Cov neeg ua haujlwm txawj ntse tau txo qis vim kev so haujlwm, qee cov neeg ua haujlwm tsis tuaj yeem rov qab mus ua haujlwm qub lossis nrhiav haujlwm tshiab hauv tib lub lag luam thiab ntau lwm yam.Nyob rau thaum ntxov ntawm kev sib kis, kev tsis txaus ntawm cov neeg ua haujlwm tau txais kev kho mob tseem ceeb xws li kev saib xyuas thiab kev kho mob. cov khw muag khoom, thaum cov neeg ua haujlwm tsim khoom tau nyob rau lub sijhawm ua haujlwm lossis txo qis qis. Cov neeg tsim khoom tam sim no muaj teeb meem nrhiav neeg ua haujlwm thiab khaws cov neeg ua haujlwm, suav nrog cov neeg ua haujlwm ntawm cov yeeb nkab mills.Tube manufacturing feem ntau yog ib qho kev ua haujlwm ntawm tes xiav-cua dab tshos uas yuav tsum tau mob siab rau hauv ib puag ncig kev nyab xeeb. Hnav cov cuab yeej tiv thaiv tus kheej ntxiv (piv txwv li lub qhov ncauj qhov ntswg) kom txo tau cov kab mob ntev li 6 lub lis piam. mus rau ib txoj haujlwm uas twb muaj ntau yam kev ntxhov siab.
Cov khoom siv hlau thiab cov nqi hlau nyoos kuj tau hloov pauv thaum lub sijhawm muaj kev sib kis.Rau feem ntau cov tubing, steel yog cov khoom siv loj tshaj plaws.Raws li txoj cai ntawm tus ntiv tes xoo, steel nyiaj rau 50% ntawm tus nqi ntawm ib ko taw ntawm cov yeeb nkab.Txog rau lub quarter thib plaub ntawm 2020, US cov khoom txias dov steel nqi nruab nrab yog nyob ib ncig ntawm $ 800 / t rau peb xyoos.Thaum kawg ntawm 2021.20 tus nqi poob rau $ 2021.
Muab hais tias ob yam no tau hloov pauv li cas thaum muaj kev sib kis, cov tuam txhab hauv kev lag luam tubing teb li cas? Cov kev hloov pauv no cuam tshuam li cas ntawm cov khoom siv tubing, thiab cov kev taw qhia muaj txiaj ntsig zoo li cas rau kev lag luam tawm los ntawm qhov teeb meem no?
Ntau xyoo dhau los, tus thawj coj ntawm lub tuam txhab yeeb nkab loj tau sau txog nws lub luag haujlwm hauv kev lag luam: "Peb tsuas yog ua ob yam ntawm no - peb ua cov kav dej, thiab peb muag lawv." , kev cuam tshuam ntau dhau, ntau yam tseem ceeb uas ua rau lub tuam txhab cov txiaj ntsig tsis muaj zog, lossis cov teeb meem tam sim no (lossis tag nrho cov xwm txheej no, feem ntau yog qhov teeb meem) yog qhov tseem ceeb rau kev tswj hwm cov thawj coj uas muaj kev ntxhov siab.
Nws yog ib qho tseem ceeb kom ua tiav thiab tswj kev tswj hwm los ntawm kev tsom mus rau qhov tseem ceeb: cov yam ntxwv uas cuam tshuam rau kev tsim khoom thiab muag cov raj zoo.Yog tias lub tuam txhab kev siv zog tsis tsom rau ob qho kev ua ub no, nws yog lub sij hawm rov qab mus rau hauv paus.
Raws li kev sib kis kis thoob qhov txhia chaw, cov yeeb nkab xav tau hauv qee qhov kev lag luam tau poob mus rau yuav luag xoom.Cov chaw tsim hluav taws xob thiab cov tuam txhab lag luam hauv lwm cov kev lag luam pom tias tsis muaj qhov tseem ceeb yog zaum tsis muaj zog.Muaj ib lub sij hawm thaum ntau hauv kev lag luam tsis ua tubing los yog muag nws.Cov yeeb nkab lag luam tseem muaj nyob rau ob peb lub lag luam tseem ceeb.
Hmoov zoo, tib neeg tab tom ua lawv cov khoom.Qee tus neeg yuav khoom lub tub yees ntxiv los khaws zaub mov.Lub tsev lag luam yuav tawm tom qab thiab tib neeg nyiam yuav qee yam lossis ntau yam khoom siv tshiab thaum lawv yuav tsev, yog li ob qho tib si kev txhawb nqa qhov kev thov rau me me txoj kab uas hla tubing.Qhov kev lag luam khoom siv ua liaj ua teb tau pib rov zoo, nrog ntau thiab ntau tus tswv xav tau cov tsheb laij teb me lossis xoom-tig nyom mowers tom qab ntawd rov pib ua lag luam. xws li chip shortages.
Daim duab 1. SAE-J525 thiab ASTM-A519 tau tsim los ua cov kev hloov pauv dav dav rau SAE-J524 thiab ASTM-A513T5.Qhov txawv ntawm SAE-J525 thiab ASTM-A513T5 yog welded, tsis seamless.Sourcing nyuaj xws li rau-hli ob lub sij hawm ua cov khoom siv tubeJ5, cov khoom siv ncaj qha rau SAE-J513T5. raj) thiab SAE-J356A (xa hauv coil), uas ua tau raws li ntau qhov Kev Xav Tau.
Kev ua lag luam tau hloov pauv, tab sis cov lus qhia zoo ib yam.Tsis muaj dab tsi tseem ceeb dua li kev tsom mus rau kev tsim thiab muag cov kav dej raws li kev xav tau ntawm kev lag luam.
Cov lus nug "ua lossis yuav" tshwm sim thaum kev tsim khoom ntsib cov nqi zog ntau dua thiab kho lossis txo cov peev txheej sab hauv.
Kev tsim khoom tom qab-welded tubular cov khoom yuav tsum muaj peev txheej tseem ceeb.Txawm li cas los xij, nyob ntawm cov khoom tsim tawm thiab kev tsim cov nroj tsuag, qee zaum muaj txiaj ntsig zoo los txiav cov strips dav hauv tsev.Txawm li cas los xij, kev txiav sab hauv tuaj yeem ua ib lub nra, muab kev ua haujlwm, cov cuab yeej peev txheej thiab cov khoom siv dav dav.
Ntawm qhov tod tes, txiav 2,000 tons hauv ib hlis ua rau 5,000 tons ntawm cov hlau hauv Tshuag, tuav nyiaj ntau heev. Ntawm qhov tod tes, nyiaj tsawg heev yuav tsum tau yuav cov hlau txiav dav hauv ib qho kev npaj tam sim.Qhov tseeb, muab cov tube tsim tawm tuaj yeem sib tham txog cov ntsiab lus credit nrog cov slitter, nws tuaj yeem ncua sijhawm cov nyiaj tau los.Txhua lub raj no muaj kev nyab xeeb. Cov neeg tsim khoom tau cuam tshuam los ntawm COVID-19 tus kabmob kis mus rau kev muaj peev xwm ua haujlwm, nqi hlau, thiab nyiaj txiag ntws.
Tib yam mus rau lub raj tsim nws tus kheej, nyob ntawm qhov xwm txheej.Cov tuam txhab uas muaj txiaj ntsig ntau ntxiv cov chains tuaj yeem xaiv tawm ntawm cov yeeb nkab tsim kev lag luam.Ses tsis txhob ua cov yeeb nkab thiab tom qab ntawd khoov nws, txheej thiab ua sub-assemblies thiab sib dhos, yuav cov yeeb nkab thiab tsom mus rau lwm yam dej num.
Ntau lub tuam txhab tsim cov khoom siv hydraulic lossis cov khoom siv tsheb thauj khoom siv lub raj ntim muaj lawv tus kheej lub raj mills.Qee lub tuam txhab tam sim no muaj kev lav phib xaub ntau dua li cov khoom muaj nqis.Cov neeg siv khoom nyob rau hauv lub sijhawm muaj kev sib kis zoo li tsav tsheb tsawg, thiab kev muag khoom pib yog qhov deb deb ntawm kev ua ntej kis thoob qhov txhia chaw.Qhov kev lag luam pib cuam tshuam nrog cov ntsiab lus tsis zoo xws li kev kaw, tsis muaj dab tsi cuam tshuam rau qhov teeb meem loj. automotive OEMs thiab lawv cov neeg muag khoom yuav hloov pauv loj heev nyob rau yav tom ntej.Qhov tseem ceeb, ntau thiab ntau EVs hauv khw no muaj tsawg dua steel tube powertrain Cheebtsam.
Captive tube mills feem ntau yog tsim los ntawm kev cai tsim.Qhov no yog qhov zoo rau nws txoj kev npaj siv - ua cov kav dej rau ib daim ntawv thov tshwj xeeb - tab sis qhov tsis zoo ntawm kev lag luam ntawm nplai.Piv txwv li, xav txog lub raj zeb tsim los ua 10 hli OD cov khoom rau ib qhov project tsheb paub.Qhov kev pab cuam guarantees kom muaj nuj nqis raws li qhov chaw.Tom qab, dhau mus rau lwm qhov me me txoj kab uas hla ntawm cov txheej txheem pib. tas sij hawm, thiab lub tuam txhab tsis muaj qhov ntim txaus los ua pov thawj qhov kev npaj thib ob.Kev teeb tsa thiab lwm cov nqi siab dhau los ua pov thawj rau nws.Qhov no, yog tias lub tuam txhab nrhiav tau tus neeg xa khoom muaj peev xwm, nws yuav tsum sim outsource qhov project.
Tau kawg, qhov kev suav tsis nres ntawm qhov kev txiav tawm.Thiab cov kauj ruam xws li txheej, txiav kom ntev thiab ntim khoom ntxiv cov nqi ntau heev.Raws li cov lus hais mus, qhov loj tshaj plaws zais tus nqi ntawm cov yeeb nkab tsim yog tuav.Lub raj yog txav los ntawm lub zeb mus rau lub warehouse, qhov twg nws yog tshem tawm thiab loaded mus rau ib tug workbench rau zaum kawg txiav, ces cov hlab rau hauv ib tug txiav cov txheej txheem ntawm tag nrho cov tshuab. Cov kauj ruam tag nrho yuav tsum tau ua haujlwm. Tus nqi ua haujlwm no yuav mus tsis tau pom los ntawm tus accountant, tab sis nws los ntawm tus neeg ua haujlwm ntxiv forklift lossis ib tus neeg ntxiv hauv chav thauj mus los.
Daim duab 2. Cov tshuaj muaj pes tsawg leeg ntawm SAE-J525 thiab SAE-J356A yog ze li zoo tib yam, pab cov tom kawg los hloov cov qub.
Cov tubing hydraulic tau nyob ib ncig ntawm ntau txhiab xyoo.Cov neeg Iyiv tau hammered tooj liab hlau ntau tshaj 4,000 xyoo dhau los.Bamboo pipes tau siv nyob rau hauv Tuam Tshoj thaum lub sij hawm Xia Dynasty, nyob ib ncig ntawm 2000 BC, thiab tom qab Roman kav dej tau tsim nrog txhuas kav, ib tug by-product ntawm cov nyiaj smelting txheej txheem.
seamless.Modern seamless steel kav ua lawv North American debut nyob rau hauv 1890.Los ntawm 1890 mus rau niaj hnub no, cov khoom siv raw rau cov txheej txheem no yog ib qho khoom siv puag ncig billet.Innovations nyob rau hauv nruam casting nyob rau hauv lub 1950s coj mus rau lub transformation ntawm seamless hlab los ntawm ingots mus rau dab tsi yog ces ib tug tsawg-nqi steel raw khoom nyob rau hauv lub hiav txwv raw khoom thiab tam sim no billets. Ua los ntawm cov txheej txheem no.Hauv North American kev ua lag luam, nws raug cais raws li SAE-J524 los ntawm Society of Automotive Engineers thiab ASTM-A519 los ntawm American Society for Testing and Materials.
Kev tsim seamless hydraulic tubing nyhav yog ib qho kev siv zog ua haujlwm, tshwj xeeb tshaj yog rau me me diameters.Nws yuav tsum muaj lub zog ntau thiab yuav tsum muaj ntau qhov chaw.
welding.Nyob rau xyoo 1970, kev lag luam hloov pauv.Tom qab ua lag luam steel yeeb nkab rau ze li ntawm 100 xyoo, seamless slippage.Nws tau raug tshem tawm los ntawm cov yeeb nkab welded, uas tau pom tias tsim nyog rau ntau yam khoom siv hauv kev tsim kho thiab kev lag luam tsheb.
Ob qhov kev tsim kho tshiab tau pab txhawb qhov kev hloov pauv no hauv kev ua lag luam.Ib qho ntawm lawv suav nrog kev nruam slab casting, uas ua rau cov hlau mills ua kom muaj txiaj ntsig zoo-ua tau zoo-zoo tiaj tiaj strip.Lwm cov txheej txheem uas ua rau muaj kev ua haujlwm siab welding txheej txheem siv tau rau cov yeeb nkab kev lag luam.Qhov tshwm sim yog ib yam khoom tshiab: kev ua tau zoo li seamless steel yeeb nkab piv rau kev tsim cov khoom siv seamless niaj hnub no, thiab cov khoom lag luam zoo sib xws. SAE-J525 los yog ASTM-A513-T5 nyob rau hauv North American lag luam.Vim tias lub raj yog kos thiab annealed, nws yog ib qho khoom siv-intensive.Cov txheej txheem no tsis yog kev ua hauj lwm- thiab peev-intensive raws li cov txheej txheem seamless, tab sis cov nqi cuam tshuam nrog lawv tseem siab.
Los ntawm xyoo 1990 mus txog rau tam sim no, feem ntau ntawm cov kav dej hydraulic siv nyob rau hauv kev lag luam hauv tsev, txawm tias seamless drawn (SAE-J524) lossis welded drawn (SAE-J525), raug xa tuaj. tsim lawv tus kheej ua tus tseem ceeb hauv kev ua lag luam no.Tus nqi zoo ntawm cov khoom tuaj txawv teb chaws yog qhov nyuaj heev.
kev lag luam tam sim no.Kev siv seamless, kos thiab annealed khoom J524 tau poob qis ntau xyoo.Nws tseem muaj thiab muaj qhov chaw hauv hydraulic kab kev lag luam, tab sis OEMs feem ntau xaiv J525 yog tias cov khoom welded, kos thiab annealed J525 yog yooj yim muaj.
Kev sib kis kis thoob plaws thiab kev lag luam hloov dua tshiab.Lub ntiaj teb cov khoom siv ntawm kev ua haujlwm, hlau thiab kev xa khoom tau poob qis ntawm tib lub sijhawm raws li tau hais tseg hauv kev xav tau ntawm lub tsheb.Tam sim no muaj tseeb rau cov khoom siv los ntawm J525 hydraulic tubing.Vim cov xwm txheej no, kev ua lag luam hauv tsev zoo li yog primed rau lwm qhov kev lag luam hloov.Npaj tsim cov khoom lag luam tsawg dua, ib qho kev siv zog ntau dua li cov khoom lag luam. raj?Ib tug muaj, txawm hais tias nws tsis yog feem ntau siv.Nws yog SAE-J356A, uas ua tau raws li qhov yuav tsum tau ntawm ntau daim ntawv thov hydraulic (saib daim duab 1).
Specifications luam tawm los ntawm SAE zoo li luv luv thiab yooj yim, raws li txhua qhov kev qhia tshwj xeeb tsuas yog ib qho txheej txheem rau kev ua cov yeeb nkab.Qhov downside yog tias J525 thiab J356A muaj ntau qhov sib tshooj hauv qhov ntev, txhua yam khoom, thiab lwm yam., yog li cov lus qhia tshwj xeeb yuav sow cov noob tsis meej pem. Tsis tas li ntawd, J356A yog cov khoom siv coiled rau cov kab me me hydraulic thiab yog ib qho khoom siv loj ntawm cov kav dej, J366 cov khoom siv ncaj qha. txoj kab uas hla hydraulic.
Daim duab 3. Txawm hais tias welded thiab txias drawn tubes raug suav hais tias los ntawm ntau yam kom zoo dua rau cov welded thiab txias txheej raj, cov khoom siv ntawm ob lub raj khoom yog sib piv.Note: Tus nqi imperial nyob rau hauv PSI yog ib tug mos hloov dua siab tshiab ntawm specification, nws yog ib tug metric nqi nyob rau hauv MPa.
Qee tus engineers ntseeg tias J525 ua tau zoo hauv kev siv hydraulic siab, xws li cov khoom siv hnyav.J356A tsis tshua paub, tab sis nws kuj yog cov kua dej siab nqa cov specification.Qee zaum kawg tsim cov kev cai sib txawv: J525 tsis muaj ID hlaws, thaum J356A yog flash tswj thiab muaj cov hlaws me me ID.
Cov khoom siv raw muaj cov khoom zoo sib xws (saib daim duab 2).Qhov sib txawv me me ntawm cov tshuaj muaj pes tsawg leeg muaj feem xyuam rau cov khoom siv kho tshuab uas xav tau.Yuav kom ua tiav qee yam khoom siv, xws li tawg lub zog los yog qhov kawg tensile lub zog (UTS), cov tshuaj muaj pes tsawg leeg los yog kev kho cua sov ntawm cov hlau yog txwv los tsim qee yam txiaj ntsig.
Tubing hom sib koom cov txheej txheem zoo sib xws ntawm cov tshuab ua haujlwm tsis zoo, ua rau lawv hloov pauv tau hauv ntau daim ntawv thov (saib daim duab 3).Lwm cov lus, yog tias ib qho tsis muaj, lwm qhov yuav ua tau raws li qhov yuav tsum tau ua. Tsis muaj leej twg xav tau rov tsim lub log; kev lag luam twb muaj ib txheej muaj zog, sib npaug log ntawm nws pov tseg.
Tube & Pipe Journal tau dhau los ua thawj phau ntawv xov xwm mob siab rau ua haujlwm rau kev lag luam yeeb nkab hlau hauv xyoo 1990.Hnub no, nws tseem yog qhov kev tshaj tawm nkaus xwb hauv North America mob siab rau kev lag luam thiab tau dhau los ua cov ntaub ntawv ntseeg siab tshaj plaws rau cov kws tshaj lij yeeb nkab.
Tam sim no nrog kev nkag mus rau tag nrho cov ntawv digital ntawm FABRICATOR, yooj yim nkag mus rau cov peev txheej tseem ceeb hauv kev lag luam.
Cov ntawv digital ntawm The Tube & Pipe Journal yog tam sim no nkag mus tau yooj yim, muab kev nkag tau yooj yim rau cov khoom lag luam muaj txiaj ntsig.
Txaus siab rau kev nkag mus rau tag nrho cov ntawv luam tawm digital ntawm STAMPING Journal, uas muab cov txheej txheem thev naus laus zis tshiab, kev coj ua zoo tshaj plaws thiab xov xwm kev lag luam rau kev lag luam hlau stamping.
Tam sim no nrog kev nkag mus rau tag nrho cov ntawv digital ntawm Tus Fabricator en Español, yooj yim nkag mus rau cov peev txheej tseem ceeb hauv kev lag luam.