Cov Kav Dej Welded
Cov Khoom Piav Qhia
Cov kav dej vuam, tseem hu ua cov kav hlau vuam, yog ua los ntawm kev dov cov hlau phaj lossis cov strips rau hauv ib lub raj thiab tom qab ntawd vuam cov pob qij txha. Nrog rau cov kav dej seamless, lawv yog ib qho ntawm ob pawg tseem ceeb ntawm cov kav hlau. Lawv cov yam ntxwv tseem ceeb yog kev tsim khoom yooj yim, tus nqi qis, thiab ntau yam kev qhia tshwj xeeb.
I. Kev Faib Pawg Tub Ntxhais: Kev Faib Pawg Los Ntawm Cov Txheej Txheem Vuam
Cov txheej txheem vuam sib txawv txiav txim siab qhov ua tau zoo ntawm cov kav dej vuam. Muaj peb hom tseem ceeb:
• Cov Yeeb Nkab Uas Tau Txuas Ntev (ERW): Tom qab dov cov hlau ua ib lub voj voog lossis plaub fab, ib qho seam raug txuas ntev (ntev) raws lub raj. Qhov no muab kev ua haujlwm siab thiab tus nqi qis, ua rau nws tsim nyog rau kev thauj mus los ntawm cov kua dej uas muaj siab qis (xws li dej thiab roj) thiab cov ntawv thov kev txhawb nqa. Cov lus qhia dav dav suav nrog cov kab uas hla me thiab nruab nrab (feem ntau ≤630mm).
• Cov Yeeb Nkab Uas Muaj Kauv Sib Txuas (SSAW): Cov hlau no raug dov rau hauv ib qho kev taw qhia helical thiab cov seam raug welded tib lub sijhawm, tsim kom muaj kev sib txuas spiral. Cov seam vuam raug kev nyuaj siab ntau dua, muab kev tiv thaiv tensile thiab khoov zoo dua piv rau cov yeeb nkab ncaj seam welded. Qhov no tso cai rau kev tsim cov yeeb nkab loj (txog li 3,000mm hauv txoj kab uas hla) thiab feem ntau yog siv rau kev thauj mus los ntawm cov kua dej siab (xws li cov kav dej roj thiab cov roj av) thiab cov kav dej ntws hauv nroog.
• Cov yeeb nkab uas vuam los ntawm cov hlau tsis xeb: Ua los ntawm cov ntawv/sab hlau tsis xeb, vuam siv cov txheej txheem xws li TIG (tungsten inert gas arc welding) thiab MIG (hlau hlau arc welding). Nws muaj kev tiv taus xeb thiab kub siab zoo li cov hlau tsis xeb thiab tsim nyog rau cov ntawv thov uas xav tau cov khoom siv zoo, xws li kev ua zaub mov, tshuaj lom neeg, thiab cov khoom siv kho mob. Nws feem ntau siv rau hauv cov yeeb nkab me me thiab nruab nrab.
II. Cov Txiaj Ntsig Tseem Ceeb
1. Tus nqi qis thiab kev tsim khoom ntau: Piv rau cov yeeb nkab tsis muaj qhov (uas xav tau cov txheej txheem nyuaj xws li tho thiab dov), cov yeeb nkab vuam muaj kev siv cov khoom siv raw ntau thiab cov txheej txheem tsim khoom luv dua. Cov nqi feem ntau qis dua 20% -50% rau tib cov lus qhia. Ntxiv mus, nws tuaj yeem tsim tawm hauv cov pawg thiab txuas ntxiv mus kom tau raws li qhov xav tau loj.
2. Cov Lus Qhia Yooj Yim: Cov kav dej uas muaj ntau txoj kab uas hla (txij li ob peb millimeters mus txog ob peb meters), phab ntsa tuab, thiab ntu hla (puag ncig, plaub fab, thiab plaub fab) tuaj yeem tsim tau raws li qhov xav tau kom ua tau raws li qhov xav tau ntawm ntau yam kev siv, suav nrog kev tsim kho thiab kev lag luam.
3. Kev Ua Yooj Yim: Cov khoom siv sib xws thiab cov vuam ruaj khov ua rau kev txiav, kev khawb, kev khoov, thiab lwm yam kev ua haujlwm tom qab ntawd yooj yim rau kev teeb tsa.
III. Cov Cheeb Tsam Tseem Ceeb rau Kev Siv
• Kev Lag Luam Tsim Kho: Siv rau hauv cov kav dej thiab cov kav dej ntws, cov kav dej tiv thaiv hluav taws, cov qauv hlau txhawb nqa (xws li scaffolding thiab cov ntaub thaiv phab ntsa studs), qhov rooj thiab qhov rai thav duab (cov kav dej sib txuas plaub fab), thiab lwm yam.
• Kev Lag Luam: Siv ua cov kav dej thauj cov kua dej uas muaj qhov siab qis (dej, cua compressed, pa dej), cov kav dej txhawb nqa cov khoom siv, cov laj kab ua haujlwm, thiab lwm yam; cov kav dej loj uas muaj kauv sib txuas yog siv rau hauv cov kav dej roj thiab roj av uas mus deb.
• Kev Lag Luam Hauv Nroog: Siv rau hauv cov kav dej ntws hauv nroog, cov kav dej roj (qhov siab nruab nrab thiab qis), cov ncej teeb pom kev ntawm txoj kev, cov laj kab tsheb, thiab lwm yam.
• Lub Neej Txhua Hnub: Cov kav dej me me uas vuam (xws li cov kav dej hlau tsis xeb) yog siv rau hauv cov khoom dai rooj tog thiab cov kav dej hauv chav ua noj (xws li cov kav dej tso pa tawm ntawm lub qhov cub).
Khoom Zaub











