LSAW (Longitudinal Submerged Arc Vuam) steel yeeb nkab yog ib hom loj-inch welded steel yeeb nkab uas feem ntau siv rau ntau yam kev siv xws li roj thiab roj tsheb thauj mus los, dej, kev txhawb nqa, thiab lwm yam. Cov txheej txheem tsim khoom ntawm LSAW steel yeeb nkab muaj ob peb kauj ruam raws li hauv qab no.
Kauj Ruam 1: Kev npaj steel phaj
Hauv cov txheej txheem tsim khoom ntawm LSAW steel yeeb nkab, cov ntawv hlau zoo yog cov khoom siv yooj yim. Yog li ntawd, thawj kauj ruam yog npaj cov hlau phaj. Cov phaj hlau uas tau xaiv rau LSAW yuav tsum ua tau raws li qhov yuav tsum tau ua thiab cov qauv raws li qhov xav tau ntawm cov yeeb nkab. Cov hlau phaj yuav tsum muaj vuam zoo thiab txiav kev ua tau zoo, zoo ductility, thiab siab toughness.
Kauj Ruam 2: Ntug Milling
Tom qab cov hlau phaj tau npaj lawm, cov kauj ruam tom ntej yog ntug milling. Cov txheej txheem ntug milling yog siv los xyuas kom meej qhov tseeb ntawm steel phaj dav thiab xyuas kom meej tias cov npoo ntawm lub phaj yog ncaj thiab tsis muaj qhov tsis xws luag. Cov phaj yog muab tso rau hauv lub tshuab uas tshem tawm cov hlau ntau dhau ntawm cov npoo kom ua tau raws li qhov dav dav.
Kauj Ruam 3: Pre-bending
Tom qab ntawd cov hlau phaj yog pre-khoov los ua U-puab. Cov txheej txheem ua ntej khoov no yog qhov tseem ceeb los xyuas kom meej tias daim hlau tuaj yeem yooj yim welded ua ke tom qab hauv cov txheej txheem ntau lawm.
Kauj Ruam 4: Kev tsim
Tom qab ua ntej khoov, cov phiajcim tau dhau los ntawm cov txheej txheem ntawm cov chais los tsim cov duab cylindrical. Cov npoo ntawm lub phaj yog ces welded ua ke los ua ib tug ua tiav cov yeeb nkab.
Kauj Ruam 5: Vuam
Lub welded yeeb nkab yog ces raug rau ob hom vuam txheej txheem. Thawj yog cov txheej txheem welding longitudinal, uas siv lub submerged arc vuam tshuab los vuam cov npoo ntawm daim hlau ua ke. Qhov thib ob yog cov txheej txheem vuam transverse, uas yog ua tiav siv lub vuam taub hau uas txav raws qhov ntev ntawm cov yeeb nkab kom tiav cov txheej txheem vuam.
Kauj Ruam 6: Ultrasonic kuaj thiab tshuaj xyuas
Thaum lub vuam tau tiav lawm, cov yeeb nkab yuav raug kuaj ultrasonic los xyuas seb puas muaj qhov tsis xws luag lossis qhov chaw tsis muaj zog. Yog tias pom muaj teeb meem, cov kav dej raug kho ua ntej cov kauj ruam kawg kom ntseeg tau tias qhov zoo tshaj plaws.
Kauj Ruam 7: Txheej thiab tshuaj ntsuam zaum kawg
Cov kauj ruam kawg yog daim ntawv thov txheej, uas yog ib qho tseem ceeb los xyuas kom meej lub neej ntev ntawm cov yeeb nkab. Cov kav dej yog coated nrog ib txheej tiv thaiv uas tiv thaiv corrosion thiab xeb. Kev tshuaj xyuas zaum kawg yog ua tiav los xyuas kom meej tias cov kav dej ua tau raws li qhov xav tau tshwj xeeb thiab cov qauv.
Hauv kev xaus, LSAW steel yeeb nkab cov txheej txheem tsim khoom yog cov txheej txheem kev tsim khoom uas xav tau cov neeg ua haujlwm txawj thiab cov ntaub ntawv zoo. Cov txheej txheem tau lees paub qhov kev nyab xeeb thiab kev ua haujlwm ntawm cov yeeb nkab steel hom no, ua rau nws nyiam xaiv rau ntau yam kev siv.
