LSAW steel yeeb nkab, tag nrho lub npe Longitudinal Submerged Arc Welded steel yeeb nkab, yog ib hom mature ntawm welded steel yeeb nkab dav siv nyob rau hauv loj -scale engineering tej yaam num xws li roj thiab roj kis, nroog pipeline networks, dej txuag tej yaam num, choj kev tsim kho, thiab kev tsim kho vaj tse. Nws cov txiaj ntsig tseem ceeb yog los ntawm kev ua tiav, nruj, thiab tswj tau zoo heev.
Ua ke nrog cov cuab yeej tsim khoom tiag tiag ntawm longitudinal submerged arc welded steel kav, cov hauv qab no yog kev txhais lus ntawm tag nrho cov txheej txheem ntawm LSAW steel kav los ntawm raw cov ntaub ntawv mus rau cov khoom tiav raws li cov txheej txheem ntau lawm.
I. Raw Material Preparation and Preliminary Inspection
1. Raw Material Warehousing thiab tshuaj xyuas
LSAW steel kav feem ntau siv nruab nrab thiab tuab steel phaj ua raw khoom. Tom qab cov hlau phaj tuaj txog ntawm lub Hoobkas, kev kuaj xyuas thiab tshuaj xyuas yog thawj zaug ntawm lawv cov tsos, qhov ntev, qib steel, tshuaj muaj pes tsawg leeg, thiab cov khoom siv tshuab kom ntseeg tau tias cov khoom siv raw ua tau raws li qhov project thiab cov qauv tsim nyog.
2. Chaw thau khoom thiab tshuaj xyuas cov phaj hlau
Ua ntej nkag mus rau hauv cov kab ntau lawm, cov hlau daim hlau raug kuaj xyuas, tsom rau kev kuaj xyuas qhov tsis xws li delamination, tawg, thiab kev suav nrog ntawm cov phaj saum npoo, nteg lub hauv paus rau kev vuam zoo tom ntej.
II. Steel Phaj Pre-kev kho mob thiab kev npaj
1. Vuam ntawm Weld Stubs thiab Ultrasonic Test
Weld stubs yog welded ntawm ob qho kawg ntawm cov hlau phaj kom stabilize lub arc striking thiab extinguishing zoo thaum lub sij hawm tom ntej welding. Tom qab ua tiav, kev kuaj xyuas qhov tsis zoo ultrasonic yog ua rau ntawm lub phaj steel txhawm rau txheeb xyuas cov teeb meem sab hauv ua ntej.
2. Ntug Milling thiab xeb tshem tawm ntawm Plate Edges
Cov npoo ntawm cov phaj hlau yog qhov tseeb- ua tiav los ntawm ntug milling kom lub zawj lub kaum sab xis thiab lub ntsej muag lub ntsej muag qhov tseeb dua. Nyob rau tib lub sijhawm, kev tshem tawm xeb yog nqa tawm ntawm lub phaj npoo kom tsis txhob muaj slag suav nrog lossis porosity thaum vuam.
III. Cov Txheej Txheem Hlau Yeeb Nkab
1. Pre-bending thiab JCO Forming
Lub phaj hlau ua ntej dhau los ua ntej- dabtsi yog khoov los ua qhov pib curvature ntawm cov npoo, ces maj mam nias rau hauv cov yeeb nkab qhib dawb paug los ntawm JCO txheej txheem. Txoj kev tsim no ua kom muaj kev sib txawv ntawm kev ntxhov siab, uas yuav pab tau kom tag nrho cov roundness thiab qhov tseeb ntawm cov yeeb nkab steel.
2. Ua ntej-vuam thiab Weld Inspection & Kho
Cov yeeb nkab uas tau tsim yog thawj zaug ua ntej -welded los kho cov yeeb nkab zoo li qub. Tom qab ua ntej- vuam, qhov vuam raug tshuaj xyuas, thiab txhua qhov tsis xws luag pom raug kho raws sijhawm kom ntseeg tau tias qhov vuam zoo ua ntej nkag mus rau theem vuam raug cai.
IV. Internal thiab External Submerged Arc Vuam txheej txheem
1. Internal Vuam thiab External Vuam
LSAW steel kav siv ob -sab submerged arc vuam txheej txheem, nrog rau hauv vuam ua ntej, tom qab los ntawm sab nraud vuam. Thaum lub sij hawm welding, lub arc hlawv nyob rau hauv lub flux txheej, kom ruaj khov vuam cua sov input, tag nrho thiab ntom weld tsim, thiab siab sib xws nyob rau hauv vuam zoo.
2. Tshem tawm ntawm Weld Stubs
Tom qab welding, weld stubs raug tshem tawm kom tsis txhob rov ua dua welds cuam tshuam qhov zoo ntawm cov yeeb nkab kawg.
V. Weld thiab Zuag qhia tag nrho kev soj ntsuam zoo
1. Radiographic thiab Ultrasonic kuaj
Lub vuam tau dhau los ua ntau yam tsis yog -kev kuaj kev puas tsuaj (NDT) cov txheej txheem, suav nrog kev kuaj hluav taws xob thiab kuaj ultrasonic, txhawm rau ntsuas qhov tsis xws ntawm cov vuam sab hauv thiab tag nrho cov vuam zoo, ua kom cov vuam ua tau raws li cov qauv kev tsim nyog.
2. Hydrostatic Test
Txhua cov yeeb nkab steel tau dhau qhov kev sim hydrostatic los xyuas nws qhov kev ua tau zoo ntawm kev sib khi thiab kev nyab xeeb ntawm cov txheej txheem nyob rau hauv siab los ntawm kev simulating lub zog ua haujlwm.
VI. Tshaj tawm -kev kho mob thiab kev ua tiav
1. Mechanical Expanding thiab Roundness Kho
Los ntawm kev siv tshuab nthuav dav, sab nraud txoj kab uas hla, roundness, thiab straightness ntawm cov yeeb nkab steel yog ntxiv stabilized, thaum lub residual kev nyuaj siab faib yog txhim kho, txhim kho tag nrho cov kev ua tau zoo ntawm cov yeeb nkab steel.
2. Pipe End Processing thiab Weld Sib Tsoo
Raws li kev siv cov kev xav tau, kev ua groove yog ua tiav ntawm cov yeeb nkab kawg, thiab cov khoom siv vuam yog hauv av kom ua tau raws li lub pob tw tom qab vuam lossis cov kev xav tau.
3. Cov tsos mob, qhov ntev, thiab ntsuas qhov hnyav
Cov yeeb nkab steel tau txais kev tshuaj xyuas zoo, kev tshuaj xyuas qhov ntev, thiab ntsuas qhov hnyav kom ntseeg tau tias txhua cov yeeb nkab ua tau raws li kev txiav txim thiab cov qauv yuav tsum tau ua.
VII. Ua tiav cov khoom kuaj xyuas thiab warehouse & Shipping
1. Kev tshuaj xyuas qhov sib nqus thiab zaum kawg
Kev tshawb nrhiav cov hlau nplaum seem thiab kev soj ntsuam zoo kawg yog ua los ntawm cov yeeb nkab steel kom tsis muaj kev phom sij hauv kev ua haujlwm thiab kev nyab xeeb ntawm cov khoom tiav.
2. Kev kos npe, Kev Tiv Thaiv Kab Ntsig, thiab Kev Cia & Kev Thauj Mus Los
Tom qab ua tiav cov cim thiab txhim kho cov yeeb nkab kawg tiv thaiv, cov yeeb nkab steel raug xa mus rau qhov chaw cia khoom tiav, tos kev xa khoom mus rau qhov project site.
Xaus
Los ntawm cov khoom lag luam ntawm cov hlau phaj mus rau kev xa cov khoom tiav, cov txheej txheem tsim khoom ntawm LSAW steel kav npog ntau cov kauj ruam tseem ceeb xws li kev tsim, vuam, tshuaj xyuas, thiab ua tiav. Txhua txheej txheem ncaj qha cuam tshuam rau qhov kawg qhov zoo thiab kev pabcuam kev nyab xeeb ntawm cov yeeb nkab steel. Nws yog qhov no nruj heev thiab tswj tau cov txheej txheem tsim khoom uas ua rau cov kav dej hauv qhov ntev arc welded steel kav kom dav siv nyob rau hauv siab -tus qauv engineering teb.
Hais txog Huayang Steel Pipe
Raws li cov kws tshaj lij steel yeeb nkab chaw tsim khoom, Huayang Steel Yeeb Nkab muaj peev xwm loj LSAW steel yeeb nkab tsim, nrog cov khoom siv npog sab nraud ntawm 406-1422mm. Peb tau tsom mus ntev rau kev tsim khoom thiab engineering daim ntawv thov ntawm siab -zoo longitudinal submerged arc welded steel kav, muab cov khoom ruaj khov thiab txhim khu kev qha rau ntau yam loj - cov haujlwm loj.
