Kauv steel kav yog ib hom welded steel yeeb nkab siv dav hauv kev tsim vaj tsev hauv nroog, dej thiab cov kav dej, qis - rau - cov kav dej nruab nrab siab, thiab kev tsim kho vaj tse. Vim lawv txoj kev tsim khoom tsis tu ncua thiab kev hloov pauv dav dav, lawv muaj txiaj ntsig zoo hauv thaj chaw loj - txoj kab uas hla steel kav. Yuav kom nkag siab tiag tiag cov yam ntxwv ntawm kev ua tau zoo thiab siv tau ntau yam ntawm kauv steel kav, nws yog thawj zaug uas yuav tsum tau pib nrog lawv cov txheej txheem tsim khoom thiab nkag siab tag nrho tias cov kav hlau kav yog tsim los ntawm kauj ruam.
Ua raws li qhov tseeb tsim tawm, kab lus no tau txhais cov txheej txheem tsim khoom ntawm cov kav hlau kav.
I. Raw Khoom rau Kauv Hlau Yeeb Nkab Manufacturing
Cov khoom siv tseem ceeb rau cov kav hlau kav yog kub - dov steel strips. Tsis zoo li longitudinal submerged arc welded (LSAW) steel kav ua los ntawm cov hlau phaj, kauv steel kav yog tsim los siv nruam steel strips, uas yog ib qho ntawm cov yam ntxwv tseem ceeb ntawm lawv txoj kev tsim.
Hauv kev xaiv cov khoom siv raw, cov hauv qab no feem ntau yuav tsum tau tsom mus rau:
- Ua ntej, cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab ntawm cov hlau sawb yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm cov qauv tsim engineering.
- Qhov thib ob, kev ruaj ntseg ntawm cov hlau sawb lub thickness thiab dav: qhov dav txiav txim siab txoj kab uas hla ntawm cov yeeb nkab steel tiav, thaum lub thickness ncaj qha cuam tshuam rau cov yeeb nkab siab -cov kabmob muaj peev xwm.
- Thib peb, qhov zoo ntawm cov hlau sawb: ntau qhov chaw tsis xws luag yuav cuam tshuam rau vuam zoo.
Kev ruaj ntseg ntawm cov khoom siv raw yog lub hauv paus rau qhov sib xws ntawm cov khoom siv kauv steel yeeb nkab.
II. Steel Strip Uncoiling thiab Pre-Kev kho mobCov txheej txheem
Ua ntej steel sawb yog tsim los ua ib tug kauv zoo, nws undergoes uncoiling thiab pib ua ntej - kho.
Lub luag haujlwm tseem ceeb ntawm cov txheej txheem uncoiling yog kom smoothly unwind lub coiled steel sawb thiab tshem tawm cov kev ntxhov siab sab hauv thiab yoj-xws li deformation tshwm sim thaum lub sij hawm thauj mus los thiab khaws cia los ntawm cov khoom siv leveling. Cov kauj ruam no yog qhov tseem ceeb rau kev tsim cov khoom zoo: tsis txaus flatness ntawm cov hlau sawb yuav yooj yim ua rau weld deviation los yog ntau cov yeeb nkab ovality thaum tsim.
Ntawm qee cov kab ntau lawm, ntug trimming kuj tau ua los xyuas kom meej cov hlau strip npoo yog zoo huv si thiab cov tuab yog uniform, tsim kom muaj tej yam kev mob zoo rau tom ntej vuam.
III. Spiral forming: Lub hauv paus ntawm cov txheej txheem tsim khoom
Kauv steel kav muab lawv lub npe los ntawm lawv txoj kev tsim tshwj xeeb.
Nyob rau hauv lub forming theem, lub steel sawb tsis ncaj qha dov mus rau hauv lub voj voog yeeb nkab raws li axial kev taw qhia tab sis yog tsis tu ncua pub rau hauv lub forming unit ntawm ib tug tej yam helix lub kaum sab xis. Los ntawm kev maj mam extrusion ntawm kev sib sau chais, cov hlau sawb npoo tsim ib kauv taub qab sib koom ua ke hauv qhov chaw, yog li tsim cov qauv ntawm cov yeeb nkab lub cev.
Txoj kev tsim no muaj cov yam ntxwv pom tseeb:
- Los ntawm kev kho lub helix lub kaum sab xis, steel strips ntawm tib qhov dav tuaj yeem tsim cov kav hlau ntawm ntau txoj kab uas hla, muab cov kev qhia tshwj xeeb kom haum.
- Cov txheej txheem tsim khoom tas mus li yog tsim nyog rau cov kev xav tau ntawm qhov ntev -cov kav dej txuas mus ntev.
- Lub vuam ntev yog qhov ntev, yuav tsum muaj kev ruaj ntseg ntawm cov txheej txheem vuam.
Qhov tseeb ntawm kauv txoj kev ncaj qha txiav txim siab lub roundness, straightness, thiab weld txoj hauj lwm stability ntawm cov yeeb nkab steel.
IV. Kev siv ntawm Submerged Arc Vuam txheej txheem
Tom qab muab kauv sib sau, cov yeeb nkab steel nkag mus rau theem vuam. Kauv steel kav feem ntau txais yuav submerged arc vuam txheej txheem rau weld kev twb kev txuas.
Cov txheej txheem vuam feem ntau muab faib ua ob kauj ruam: welding sab hauv thiab sab nraud vuam:
- Internal welding: Vuam cov kauv vuam hauv cov yeeb nkab steel, feem ntau ua kom cov fusion zoo ntawm cov hauv paus vuam.
- External welding: Ua kom muaj zog vuam nyob rau sab nraud ntawm cov yeeb nkab lub cev kom cov vuam ua tau raws li tus qauv tsim lub zog thiab tsim cov kev xav tau.
Submerged arc vuam yog tus cwj pwm los ntawm cov txheej txheem vuam ruaj khov, kev sib sib zog nqus vuam, thiab kev sib txuas zoo, ua rau nws tsim nyog rau vuam tuab - cov kav hlau yeeb nkab. Txawm li cas los xij, vim yog qhov ntev ntawm cov kav hlau txuas, cov kev xav tau siab yog tsim los ntawm kev tswj cov vuam txwv, xaim -flux txuam, thiab vuam txuas ntxiv.
V. Nwsline Weld Inspection thiab Quality Control
Kev ua tiav ntawm vuam tsis txhais tau tias qhov kawg ntawm cov txheej txheem tsim khoom; Kev tshuaj xyuas zoo yog qhov tseem ceeb ntawm kev sib txuas hauv kauv steel yeeb nkab raug tsim.
Ntawm cov kab ntau lawm, kev saib xyuas hauv online ntawm cov vuam feem ntau yog ua, tsom mus rau kev sib txuas txuas ntxiv, tsim cov xwm txheej, thiab muaj qhov pom tseeb ntawm vuam tsis xws luag. Tom qab ntawd, cov yeeb nkab steel kuj yuav tsum tau ua qhov tsis yog -kev kuaj kev puas tsuaj (NDT) raws li cov qauv kev cai txhawm rau txhawm rau txhawm rau pom qhov tsis xws luag sab hauv.
Rau engineering-qib kauv steel kav, weld zoo ncaj qha txiav txim siab lawv cov kev pabcuam kev nyab xeeb, yog li kev tshuaj xyuas txuas tau ua haujlwm tseem ceeb hauv tag nrho cov txheej txheem tsim khoom.
VI. Sizing, Straightening, thiab Dimensional Control
Thaum lub vuam tiav lawm, cov yeeb nkab steel yuav tsum tau kho qhov kawg ntawm qhov loj me los ntawm cov khoom siv sizing thiab straightening.
- Sizing: Xyuas kom lub sab nraud txoj kab uas hla, roundness, thiab ovality ntawm cov yeeb nkab steel raws li cov qauv tsim.
- Straightening: Txhim kho qhov ncaj ntawm cov yeeb nkab steel thiab zam kev khoov hauv zos los ntawm kev sib sau thiab vuam.
Dimensional stability tsis yog tsuas yog cuam tshuam nrog kev yooj yim ntawm engineering installation tab sis kuj cuam tshuam rau kev ua tiav ntawm kev tiv thaiv tom ntej -corrosion thiab txuas cov txheej txheem.
VII. FinalKev tshuaj xyuas thiab kev npajrau shipping
Tom qab ua tiav tag nrho cov txheej txheem tsim khoom, kauv steel kav tau txais kev tshuaj ntsuam xyuas zaum kawg, suav nrog kev ntsuas qhov ntev, kev tshuaj xyuas zoo li qub, thiab kev ntsuas khoom siv tsis zoo.
Tsuas yog thaum tag nrho cov ntsuas ua tau raws li cov kev cai ntawm cov qauv tsim nyog yuav cov yeeb nkab steel nkag mus rau theem xa khoom. Raws li kev xav tau kev tsim vaj tsev, qee cov kav hlau kav yuav raug kho los tiv thaiv - corrosion kom hloov mus rau qhov sib txawv ntawm ib puag ncig.
Xaus
Los ntawm kub- dov steel strips mus rau cov kav hlau tiav, cov txheej txheem tsim khoom ntawm cov kav hlau kav yog ib qho kev lag luam txuas ntxiv nrog cov txheej txheem sib txuas. Nws cov txiaj ntsig tseem ceeb yog nyob rau hauv kev ua haujlwm siab thiab hloov tau yooj yim, uas tuaj yeem ua tau raws li qhov xav tau tiag tiag ntawm - txoj kab uas hla, ntev - deb ntawm cov kav dej.
Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias kauv steel kav tso siab rau ntawm raw khoom ruaj ntseg, tsim precision, thiab vuam zoo tswj. Tsuas yog nyob rau hauv cov txheej txheem tsim khoom thiab kev tswj xyuas nruj zoo tuaj yeem muab kauv steel kav siv lawv cov nqi tsim nyog hauv kev siv engineering.
Los ntawm kev nkag siab txog cov txheej txheem tsim khoom ntawm kauv steel kav, bith engineers thiab cov neeg yuav khoom tuaj yeem ua kom paub ntau ntxiv thiab xaiv cov khoom tsim nyog hauv lawv cov haujlwm tiag tiag.
