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.Kev kis thoob ntiaj teb 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 nyiaj laus, 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 yog cov neeg ua haujlwm kho mob ua haujlwm tseem ceeb hauv kev saib xyuas, thiab cov neeg ua haujlwm hauv khw muag khoom tseem ceeb xws li cov neeg ua haujlwm kho mob. furlough los yog txo qis cov sij hawm ua haujlwm.Tam sim no cov neeg tsim khoom 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 kev ua haujlwm ntawm tes, xiav-dab tshos uas yuav tsum tau mob siab rau hauv ib puag ncig uas tsis muaj kev nyab xeeb. Hnav cov khoom tiv thaiv tus kheej ntxiv (piv txwv li lub qhov ncauj qhov ntswg) kom txo tau cov kab mob thiab ua raws li txoj cai ntxiv 6 ko taw, ntev li ntev tau txoj haujlwm. .
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 ib ko taw ntawm cov yeeb nkab.Txog rau lub quarter thib plaub ntawm xyoo 2020, US cov khoom txias txias steel nqi nruab nrab 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 ua lawv li.Qee tus neeg yuav khoom lub tub yees ntxiv los khaws khoom noj.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.Kev lag luam khoom siv ua liaj ua teb pib rov zoo, nrog ntau thiab ntau tus tswv xav tau cov tsheb laij teb me me lossis xoom-tig nyom nyom chips tom qab ntawd rov pib dua, xws li kev lag luam qeeb qeeb. .
Daim duab 1. SAE-J525 thiab ASTM-A519 yog tsim los ua kev hloov pauv dav dav rau SAE-J524 thiab ASTM-A513T5.Qhov sib txawv tseem ceeb yog SAE-J525 thiab ASTM-A513T5 yog welded, tsis seamless.Sourcing nyuaj xws li rau-lub hlis cov khoom siv lead ua tube-2 lub sij hawm SAEred tube del 6 lub sij hawm thiab cov khoom siv ncaj nraim AE-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 kev npaj tam sim.Qhov tseeb, muab cov tube tsim tawm tuaj yeem sib tham txog cov ntsiab lus qiv nyiaj nrog cov slitter, nws tuaj yeem ncua sijhawm cov nyiaj tau los.Txhua lub raj muaj kev nyab xeeb rau txhua qhov kev lag luam. los ntawm COVID-19 kev kis tus kabmob kis mus rau kev muaj peev xwm ua haujlwm, cov 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 hauv tsheb thauj khoom 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 kev kwv yees yog deb deb ntawm kev ua ntej kis thoob qhov txhia chaw.Lub khw pib muaj feem cuam tshuam nrog cov nqe lus tsis zoo xws li kev kaw, tsis muaj dab tsi cuam tshuam rau automotive qhov teeb meem. Cov neeg muag khoom yuav hloov pauv loj heev nyob rau yav tom ntej.Qhov tseem ceeb, ntau thiab ntau EVs nyob rau hauv lub 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 lag luam rau ib qhov project automotive paub.Qhov kev pab cuam lav kom muaj nuj nqis raws li kev teeb tsa.Tom qab, dhau mus rau lwm lub tuam txhab cov txheej txheem me me nrog cov txheej txheem pib. 'tsis muaj qhov ntim txaus los ua pov thawj qhov kev npaj thib ob.Setup thiab lwm yam nqi siab dhau los ua pov thawj nws.Qhov no, yog tias lub tuam txhab tuaj yeem nrhiav 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 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 raug tshem tawm thiab loaded mus rau ib tug workbench rau zaum kawg txiav, ces cov hlab rau ib tug tag nrho cov txheej txheem ntawm kev ua hauj lwm yuav tsum tau ua nyob rau hauv cov kauj ruam f. .Tus nqi zog no tuaj yeem tsis pom los ntawm tus accountant, tab sis nws tuaj nyob rau hauv daim ntawv ntawm tus neeg tsav tsheb thauj khoom ntxiv lossis 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 puag ncig ntau txhiab xyoo.Cov neeg Iyiv tau hammered tooj liab hlau ntau tshaj 4,000 xyoo dhau los.Bamboo xov 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 conduits, ib tug by-product ntawm cov nyiaj smelting txheej txheem.
seamless.Modern seamless steel kav ua lawv cov 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 cov khoom sib tw billet.Innovations nyob rau hauv nruam casting nyob rau hauv lub 1950s coj mus rau lub transformation ntawm seamless hlab los ntawm ingots rau dab tsi yog ces ib tug tsawg-nqi steel raw cov ntaub ntawv raw cov ntaub ntawv thiab cov khoom siv hauv hiav txwv tam sim no. Hauv kev ua lag luam North American, 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 rau qhov kev hloov pauv no hauv kev ua lag luam.Ib qho ntawm lawv cuam tshuam 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 siv seamless AE2. 5 los yog ASTM-A513-T5 nyob rau hauv North American lag luam.Vim 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 txuam 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) los yog welded drawn (SAE-J525), tau tuaj. ntsaum nyob rau hauv lub lag luam no.Qhov zoo nqi ntawm cov khoom txawv teb chaws yog ib tug formidable teeb meem.
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 thoob ntiaj teb 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 qhov tau hais tseg hauv qhov kev thov rau tsheb.Tam sim no muaj tseeb rau cov khoom xa tuaj ntawm J525 hydraulic tubing.Vim cov xwm txheej no, kev ua lag luam hauv tsev zoo li yog primed rau lwm qhov kev ua lag luam hloov.Npaj tsim cov khoom lag luam tsawg dua, ib qho khoom siv hluav taws xob tsawg dua, thiab cov khoom siv hluav taws xob ntau dua li cov khoom siv hluav taws xob. Txawm hais tias nws tsis yog siv ntau.Nws yog SAE-J356A, uas ua tau raws li qhov yuav tsum tau muaj 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 ntawm 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 cov khoom siv sib txawv ntawm cov kav dej loj, J5 txoj kab uas hla.
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 khoom lag luam muaj txiaj ntsig.
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, nkag tau yooj yim rau kev lag luam muaj txiaj ntsig.