LSAW steel yeeb nkab yog tsim los ntawm kev tswj xyuas ib ntus ntawm cov phaj tshuaj xyuas, kev npaj ntug, sib sau, vuam, kuaj, sizing, thiab tiav. Piv nrog ERW steel yeeb nkab, LSAW ntau lawm pib nrog steel phaj thiab siv longitudinal submerged arc vuam los tsim loj - txoj kab uas hla steel yeeb nkab nrog tswj qhov ntev thiab phab ntsa thickness.
Rau kev tsim kho vaj tse loj, kev xa dej, roj thiab roj, piling, thiab kev lag luam, txhua theem ntawm kev tsim khoom tuaj yeem cuam tshuam cov yeeb nkab kawg. Cov txheej txheem tsim khoom tsim tau zoo yog li ntawd tseem ceeb rau kev tswj cov kev sib raug zoo, qhov tseeb, qhov ua tau zoo, thiab kev taug qab.
LSAW Steel Pipe Ua li cas?
Cov txheej txheem tseem ceeb ntawm LSAW tuaj yeem muab faib ua ntau theem kev sib txuas, pib nrog kev tshuaj xyuas cov hlau phaj thiab xaus nrog kev tshuaj xyuas zaum kawg thiab txheej thaum xav tau. Ntawm Huayang Steel Yeeb Nkab, cov txheej txheem tsim khoom yog tsim los rau loj - txoj kab uas hla ncaj seam welded steel yeeb nkab, nrog rau kev tsim muaj peev xwm npogΦ406.4-Φ2,800 hli, phab ntsa thicknesses7-50 mm, thiab lengths6–12.5 m.
Cov txheej txheem ua ntu zus thiab kev tshuaj xyuas yuav txawv raws li tus qauv siv, qib steel, qhov ntev ntawm cov yeeb nkab, thiab cov neeg siv khoom tshwj xeeb.
1. Kev tshuaj xyuas cov phaj hlau
Hlau phaj yog cov khoom siv tseem ceeb rau LSAW yeeb nkab, yog li nws qhov zoo yuav tsum raug txheeb xyuas ua ntej tsim. Cov ntawv xa tuaj raug kuaj xyuas qhov kev yuav khoom tshwj xeeb, suav nrog qhov ntev, qhov chaw nyob, kev txheeb xyuas, tshuaj muaj pes tsawg leeg, thiab cov khoom siv kho tshuab.
Kev kuaj ultrasonic kuj tseem tuaj yeem ua raws li tus qauv siv tau thiab kev tshuaj ntsuam xyuas los txheeb xyuas qhov cuam tshuam sab hauv hauv lub phaj. Kev tshuaj xyuas cov phaj kom zoo pab tiv thaiv qhov tsis xws ntawm cov khoom siv raw los ntawm kev nqa mus rau hauv kev tsim thiab vuam ua haujlwm.
2. Phaj Ntug Milling
Tom qab kuaj xyuas, cov npoo npoo yog ua tiav siv cov khoom siv ntug milling. Qhov kev ua haujlwm no tsim kom muaj qhov xav tau phaj dav, ntug ncaj, thiab weld bevel geometry.
Kev npaj ntug kom raug yog qhov tseem ceeb tshwj xeeb rau kev sib tw longitudinal. Cov kab mob ntawm ntug cuam tshuam kev sib koom ua ke - nce, vuam ruaj khov, nkag mus, thiab qhov kawg weld profile. Rau qhov loj - txoj kab uas hla cov yeeb nkab, kev tswj qhov ntev ntawm theem no kuj tseem ua rau qhov tseeb ntawm cov yeeb nkab tiav.
3. Ntug Pre-bending
Ua ntej lub phaj yog tsim rau hauv cov yeeb nkab cylindrical, nws cov npoo ntev yog ua ntej - khoov los tsim qhov curvature uas yuav tsum tau ua.
Yog tsis tsim nyog ua ntej- dabtsi yog khoov, lub phaj npoo yuav tsis phim lub voj voog geometry thaum lub sijhawm ua haujlwm tseem ceeb. Tswj tau ua ntej- dabtsi yog khoov yog li pab txhim kho ntug kev sib raug zoo thiab txo qhov sib txawv ntawm qhov sib txawv.
4. JCOE tsim
JCOE yog ib txoj hauv kev tseem ceeb uas siv rau loj - txoj kab uas hla LSAW steel yeeb nkab. Lub phaj yog maj mam nias rau hauv J duab, ua raws li C duab, thiab thaum kawg yog O zoo.
Tsis zoo li cov txheej txheem uas khoov tag nrho cov phaj hauv ib qho kev ua haujlwm, JCOE siv ntau yam kev tswj cov kauj ruam. Qhov no tso cai rau cov hlau loj loj los hloov mus rau hauv cov yeeb nkab cylindrical thaum tswj kev deformation.
Tom qab O- ua tiav, cov yeeb nkab muaj qhov qhib qhov ntev uas tau npaj rau vuam. Cov txheej txheem tsim yuav tsum muaj qhov tsim nyog roundness, txoj kab uas hla, thiab ntug sib dhos ua ntej vuam theem.
Yuav ua li cas yog Longitudinal Seam Welded?
5. Pre- vuam
Tom qab tsim, cov npoo ntev yog sib dhos thiab txuas ib ntus los ntawm kev ua ntej - vuam. Lub hom phiaj yog tswj cov yeeb nkab geometry thiab seam alignment ua ntej submerged arc vuam.
Nyob ntawm cov kab ntau lawm thiab qhov yuav tsum tau ua, cov txheej txheem ua ntej - vuam tuaj yeem siv txoj kev vuam tsis siv neeg tsim nyog. Kev ruaj khov- nce ntawm theem no yog qhov tseem ceeb vim tias nws muab lub hauv paus rau kev txuas sab hauv thiab sab nraud.
6. Internal Submerged Arc Vuam
Tom qab ntawd lub internal seam yog welded sivsubmerged arc vuam, los yog SAW. Nyob rau hauv cov txheej txheem no, vuam arc yog shielded hauv qab ib txheej ntawm granular flux. Lub vuam txheej txheem tuaj yeem siv ntau cov xov hlau los ua kom cov khoom siv tau zoo dua thiab tswj xyuas qhov ntsuas vuam tsis zoo.
Internal welding ua rau thawj qhov kev sib txuas ntawm cov qauv loj raws li qhov ntev seam. Vuam tam sim no, voltage, mus txawv tebchaws ceev, hlau configuration, flux, thiab kub input yuav tsum tau tswj raws li cov kev pom zoo vuam txheej txheem.
7. Sab nraud Submerged Arc Vuam
Tom qab welding sab hauv, sab nraud seam yog welded siv submerged arc vuam. Kev sib xyaw ua ke ntawm sab hauv thiab sab nraud welding muab ib qho kev tsim ua tiav longitudinal welded sib koom ua ke.
Ob chav -sided submerged arc vuam yog ib qho ntawm cov yam ntxwv ntawm ntau cov txheej txheem LSAW. Kev tswj kom zoo ntawm vuam tsis pab ua kom tiav qhov xav tau kev nkag mus, weld geometry, thiab kev ua haujlwm txhua yam.
Kev tshuaj xyuas dab tsi yog ua tom qab vuam?
Vuam yog ib theem tseem ceeb hauv LSAW kev tsim khoom, yog li kev sim tsis muaj kev puas tsuaj yog ib txwm muab tso rau hauv cov txheej txheem tsim khoom raws li tus qauv siv tau.
| Qib ntau lawm | Txheej txheem tseem ceeb | Main Quality Control |
|---|---|---|
| Cov khoom nyoos | Kev npaj steel phaj | Kev txheeb xyuas cov khoom siv thiab tshuaj xyuas phaj |
| Kev npaj phaj | Ntug milling | Dav, ncaj thiab bevel geometry |
| Ua ntej -forming | Ntug ua ntej-bending | Ntug curvature thiab dimensional tswj |
| tsim | JCOE tsim | Txoj kab uas hla, roundness thiab seam alignment |
| Ua ntej- vuam | Longitudinal seam txuas | Haum- nce thiab weld mob |
| Main vuam | Sab hauv thiab sab nraud SAW | Welding parameters thiab weld profile |
| NDT | Kev tshuaj xyuas seam | UT, RT lossis lwm txoj hauv kev |
| Kev nthuav dav | Tag nrho -length sizing | Sab nraud txoj kab uas hla thiab roundness |
| Kev ntsuam xyuas hydrostatic | Kev ntsuas siab | Kev tuav tuav thiab kev soj ntsuam cov dej xau |
| Ua tiav | Xaus beveling thiab kev soj ntsuam zaum kawg | Dimensions, xaus, nto thiab cim |
| Txheej | Anti-kev kho corrosion | Txheej thickness thiab kev ncaj ncees |
8. Kev kuaj Ultrasonic
Kev ntsuam xyuas ultrasonic feem ntau yog siv los tshuaj xyuas cov kav ntev thiab cov cheeb tsam ntawm cov yeeb nkab. Nyob ntawm txoj kev npaj tshuaj ntsuam xyuas, kev sim yuav npog cov vuam thiab cov hlau uas nyob ib sab.
Tom qab tom qab kev tsim khoom lag luam, kev tshuaj xyuas ultrasonic ntxiv kuj tseem yuav tsum tau ua kom paub tseeb tias tsis muaj qhov cuam tshuam tsis zoo nyob.
9. Kev kuaj hluav taws xob
Kev ntsuam xyuas hluav taws xob tuaj yeem muab cov ntaub ntawv ntxiv txog qhov xwm txheej sab hauv ntawm cov kav ntev. Rau cov haujlwm uas xav tau kev kuaj hluav taws xob, kev lag luam X-ray systems yog siv raws li tus qauv thiab cov txheej txheem tshuaj xyuas.
Kev sib xyaw ntawm ultrasonic thiab radiographic kuaj nyob ntawm qhov yuav khoom specification. Tsis yog txhua txoj haujlwm LSAW xav tau tib yam NDT program, yog li kev tshuaj xyuas yuav tsum tau lees paub ua ntej tsim khoom.
LSAW Pipe Qhov Loj thiab Kev Ntsuas Siab Li Cas?
10. Txoj kab uas hla
Tom qab vuam thiab kev tshuaj xyuas thawj zaug, cov yeeb nkab tuaj yeem ua tiav tag nrho -ntev mechanical expansion. Qhov kev ua haujlwm no pab txhim kho qhov tseeb qhov tseeb thiab qhov sib npaug thaum tswj kev faib tawm ntawm cov kev ntxhov siab seem uas tsim tawm thaum tsim thiab vuam.
Rau qhov loj - txoj kab uas hla LSAW yeeb nkab, kev tswj xyuas qhov ntsuas sab nraud thiab qhov sib npaug yog qhov tseem ceeb rau kev thauj mus los tom ntej, kev vuam, kev teeb tsa, thiab kev sib txuas.
11. Kev Ntsuas Hydrostatic
Kev ntsuam xyuas hydrostatic yog siv thaum xav tau los ntawm cov qauv khoom siv lossis kev yuav khoom tshwj xeeb. Txhua lub yeeb nkab tau ntim nrog dej thiab raug rau qhov ntsuas ntsuas qhov ntsuas rau lub sijhawm xav tau.
Lub hom phiaj yog txhawm rau txheeb xyuas lub siab ncaj ncees thiab txheeb xyuas qhov xau lossis qhov tsis txaus ntseeg raws li qhov kev xeem tau teev tseg. Kev ntsuas siab, tuav lub sijhawm, thiab kev lees txais yuav tsum ua raws li tus qauv tsim nyog es tsis yog xaiv qhov kev txiav txim siab.
Yuav Ua Li Cas Thaum Kawg Ua Haujlwm?
12. Yeeb Nkab End Beveling
Cov kav dej tsim nyog tau ua tiav ntawm qhov kawg raws li qhov yuav tsum tau muaj kev sib txuas thiab vuam kev teeb tsa. Beveling tsim cov yeeb nkab tshwj xeeb-kawg geometry rau thaj chaw lossis khw vuam.
Qhov tseeb bevel qhov ntev yog qhov tseem ceeb tshwj xeeb rau cov phiaj xwm kav dej vim tias qhov kev npaj tsis sib haum tuaj yeem ua rau muaj kev nyuaj siab thaum lub sijhawm teeb tsa.
13. Kev Xeem Tsis Txaus Siab Kawg
Ntxiv ultrasonic, radiographic, los yog lwm yam kev soj ntsuam yuav tsum tau ua tom qab expansion thiab hydrostatic kuaj thaum teev. Cov yeeb nkab kawg tuaj yeem tau txais kev tshuaj xyuas tshwj xeeb vim tias qhov kawg ntawm qhov kawg xav tau kev saib xyuas tshwj xeeb thaum ua tiav.
Kev ntsuam xyuas cov khoom sib nqus tuaj yeem siv rau cov qib hlau tsim nyog thiab kev soj ntsuam xyuas kom paub meej qhov cuam tshuam los yog ze rau - qhov tsis sib xws ntawm cov yeeb nkab kawg.
14. Los tiv thaiv-Coating txheej
Rau cov kav xa dej raug rau cov av, noo noo, tshuaj lom neeg, lossis lwm yam corrosive ib puag ncig, cov yeeb nkab steel tsim nyog tuaj yeem tau txais kev kho los tiv thaiv-corrosion raws li qhov project specification.
Huayang Steel Pipe muab cov txheej txheem daws teeb meem suav nrog3PE, 2PE, 3PP, 2PP, FBE, sab hauv epoxy hmoov, thiab cov kua epoxy. Nws cov tshuaj tiv thaiv -corrosion processing range npog kwv yees liΦ159-Φ1,626 hli, nrog phab ntsa thicknesses ntawm4-40 hlithiab ntev ntawm8–16 m.
Vim li cas txhua theem kev tsim khoom tseem ceeb?
LSAW steel yeeb nkab zoo tsis yog txiav txim los ntawm vuam ib leeg. Cov khoom kawg tshwm sim los ntawm kev sib koom ua ke ntawm kev tswj hwmsteel phaj zoo, ntug kev npaj, kev ua kom raug, vuam tsis, kev sim tsis muaj kev puas tsuaj, nthuav dav, kuaj hydrostatic, kev sib tw kawg, thiab txheej.
Rau cov haujlwm loj - txoj kab uas hla, qhov sib txawv ntawm qhov sib txawv ntawm lub sijhawm tsim khoom thaum ntxov tuaj yeem cuam tshuam rau kev ua haujlwm tom qab. Piv txwv li, kev npaj tsis zoo ntawm ntug tuaj yeem cuam tshuam qhov zoo ntawm cov khoom siv vuam, thaum tsis muaj kev tswj xyuas tsis txaus tuaj yeem cuam tshuam cov yeeb nkab roundness thiab seam alignment. Qhov no yog vim li cas cov txheej txheem tsim khoom yog qhov tseem ceeb rau kev tswj xyuas cov khoom zoo ib yam.
LSAW Steel Pipe Ua Huayang Ua Li Cas?
Huayang Steel Pipe manufactures loj -inch ob -sided submerged arc welded steel kav npogΦ406.4-Φ2,800 hlihauv txoj kab uas hla,7-50 mmhauv phab ntsa thickness, thiab6–12.5 mnyob rau hauv ntev. Lub tuam txhab tuaj yeem tsim cov qib steel sib txawv, qhov ntev, thiab ntev raws li qhov yuav tsum tau ua.
Nws lub peev xwm tsim khoom thiab kev ua tau zoo tshaj li LSAW ntau lawm suav nrogERW steel yeeb nkab, kub- nthuav dav steel yeeb nkab, tiv thaiv- kev kho corrosion, steel yeeb nkab sib sib zog nqus ua, thiab kuaj hydrostatic. Qhov kev muaj peev xwm ua ke no tso cai rau Huayang los txhawb cov haujlwm uas xav tau ntau cov yeeb nkab steel ua ke nrog kev tshuaj xyuas thiab kev ua haujlwm hauv qab.
Los ntawm raw hlau phaj tshuaj xyuas mus rau txheej txheej kawg, txhua kauj ruam ua rau kev ua tau zoo thiab kev ntseeg siab ntawm LSAW steel yeeb nkab tiav. Rau cov neeg yuav khoom thoob ntiaj teb, kev nkag siab txog cov txheej txheem tsim khoom kuj ua rau nws yooj yim rau kev ntsuam xyuas tus neeg muag khoom lub peev xwm, kev ua tau zoo - tswj qhov system, kev tshuaj ntsuam xyuas, thiab muaj peev xwm ua tau raws li qhov project- tshwj xeeb.
Nyeem ntxiv:
Core Application Areas Ntawm Anti-corrosion Coated Steel Pipes
