Kev kho puas tsuaj: Cov neeg ua haujlwm yuav tsum nthuav tawm daim duab kab ib kab raws li cov thev naus laus zis ua ntej kev tsim kho, kos cov cai ntawm cov kav dej, npaj cov txheej txheem vuam cuam tshuam, thiab npaj cov zawj raws li cov vuam hauv qab. Ua ntej txiav cov yeeb nkab, cov cim kev lag luam yuav tsum tau hloov pauv, thiab cov nplaim acetylene ntawm cov pa roj carbon steel yeeb nkab yuav tsum tau siv rau kev txiav. Thaum txiav, qhov loj me thiab du nto yuav tsum tau ua kom ntseeg tau. Siv cov tshuab lossis ion txiav cov kav hlau tsis muaj steel thiab cov kav hlau tsis muaj hlau, nws yuav pom tias cov yeeb nkab saum npoo yog tiaj tus, tsis muaj kab nrib pleb, tawv tawv thiab burrs, thiab inclination ntawm lub ntsej muag kawg yuav tsis pub tshaj 3 hli. Cov kws tshuaj ntsuam xyuas yuav tsum rov xyuas cov grooves, qhov ntev, thiab cov kev cai sib dhos ua ntej xa cov txheej txheem, kom qhov zoo ntawm qhov zawj tuaj yeem lees paub thiab cov txheej txheem vuam ua tau raug.
Prefabrication ntawm lub raj xa dej: qhov zoo thiab qhov yooj yim ntawm kev teeb tsa, cov cim ntu tshwj xeeb yuav tsum tau cim rau ntawm cov kav dej, thiab cov kav dej dawb thiab cov kav dej kaw yuav tsum raug xaiv kom tsim nyog. Qhov kev hloov kho ntev ntawm cov kav dej sib txuas ntawm qhov chaw yuav tsum muaj cov npoo ntawm 50mm, thiab tus lej sib txuas thiab vuam seam yuav tsum raug cim rau ntawm qhov preform. Xyuas kom meej tias cov kev taw qhia prefabrication ntawm lub raj xa dej yog ua raws li cov kev taw qhia ntawm kev teeb tsa ntawm qhov chaw, txhawm rau tiv thaiv qhov tsis sib xws ntawm kev teeb tsa thiab lub cim. Cov welding pawg ntawm cov yeeb nkab fittings yuav tsum tau yaug nrog lub puab phab ntsa, thiab lub misalignment ntawm lub puab phab ntsa yuav tsum tsis txhob ntau tshaj 10 feem pua ntawm cov phab ntsa thickness thiab yuav tsum tsis txhob ntau tshaj 2 hli. Kev Txhim Kho Cov Yeeb Nkab: Cov yeeb nkab ntsaws thiab cov ntsaws ruaj ruaj yuav tsum tau muab tshem tawm ua ntej kev teeb tsa. Yog tias nws tau nqa, lub kaum sab xis yuav tsum tau khaws cia ntawm 45 degree, thiab cov yeeb nkab steel yuav tsum tau rub los ntawm tes kom tshem tawm cov khib nyiab hauv cov yeeb nkab. Tom qab ntxuav, nws yuav tsum tau rov hais dua los ntawm cov neeg ua haujlwm zoo. Nyob rau tib lub sijhawm, nws yog txwv tsis pub muab cov khoom tso rau hauv lub raj kuaj thaum lub sijhawm teeb tsa. Hais txog kev nyab xeeb ntawm kev thauj mus los ntawm cov raj xa mus rau qhov chaw tsim kho, kev tshem tawm thiab kev tso chaw tshwj xeeb yuav tsum tau ua raws li cov lus qhia tshwj xeeb ntawm lub cim. Kev teeb tsa ntawm cov yeeb nkab yog tus yuam sij kom ntseeg tau qhov zoo ntawm cov vuam thiab tsim kom zoo ntawm cov yeeb nkab rov qab. Yog hais tias qhov sib txawv thiab blunt ntug ntawm qhov zawj tsis haum, nws yog ib qho yooj yim los ua qhov tsis xws luag xws li undercuts, weld flashes thiab incomplete penetration. Nws yuav tsum tau xyuas kom meej tias qhov sib txawv yog sib xws thiab cov phab ntsa sab hauv yog khaws cia. Yog tias phab ntsa thickness tsis sib haum, nws yuav tsum tau kho raws li cov cai tshwj xeeb.
