Galvanized square tube & lub raj raj
1. Qhov tso cai sib txawv ntawm cov phab ntsa thickness ntawm lub galvanized lub raj yuav tsum tsis pub tshaj ntxiv los yog rho tawm 10% ntawm nominal phab ntsa thickness thaum phab ntsa thickness yog tsawg tshaj li 10 hli, thiab thaum phab ntsa thickness yog ntau tshaj 10 hli, nws yog ntxiv los yog rho tawm 8% ntawm phab ntsa thickness. Tsuas yog cov phab ntsa thickness nyob rau hauv seam cheeb tsam.
2. Lub sijhawm xa khoom ntev ntawm galvanized lub raj yog 4000mm-12000mm, feem ntau 6000mm thiab 12000mm. Rectangular pipes raug tso cai kom xa cov khoom luv-ntev thiab tsis-taw-ntev tsis pub tsawg dua 2000mm, thiab tseem tuaj yeem xa tuaj rau hauv daim ntawv ntawm cov kav dej sib txuas, tab sis tus neeg yuav khoom yuav tsum txiav tawm cov yeeb nkab txuas thaum siv nws. Qhov hnyav ntawm qhov ntev-ntev thiab tsis-taw-ntev-ntev cov khoom yuav tsum tsis pub tshaj 5% ntawm tag nrho cov khoom xa tuaj, thiab rau cov square square raj nrog lub theoretical hnyav tshaj 20kg / m, nws yuav tsum tsis txhob ntau tshaj 10% ntawm tag nrho cov khoom ntim.
3. Qhov curvature ntawm galvanized square raj yuav tsum tsis txhob ntau tshaj 2 hli ib 'meter', thiab tag nrho curvature yuav tsum tsis txhob ntau tshaj 0.2% ntawm tag nrho cov ntev.
Classification Introduction
1. Cov txheej txheem ntau lawm kev faib tawm ntawm lub raj plaub
Rectangular raj raug cais raws li cov txheej txheem tsim khoom: kub dov seamless square raj, txias-draw seamless square raj, extruded seamless square raj, thiab welded square raj. Ntawm lawv, cov welded square yeeb nkab tau muab faib ua: (a) Raws li cov txheej txheem-arc vuam square yeeb nkab, tsis kam vuam square yeeb nkab (siab zaus, tsis tshua muaj zaus), roj vuam square yeeb nkab, qhov cub vuam square yeeb nkab (b) raws li cov vuam-txoj kab ncaj seam welded square yeeb nkab, kauv welded square yeeb nkab.
2. Kev faib cov khoom ntawm lub raj raj
Cov kav dej square raug cais raws li lawv cov ntaub ntawv: cov pa roj carbon steel square kav thiab cov kav dej qis-alloy square. Cov pa roj carbon ntau yog muab faib ua: Q195, Q215, Q235, SS400, 20 # steel, 45 # steel, thiab lwm yam; Cov hlau tsis tshua muaj hlau tau muab faib ua Q345, 16Mn, Q390, ST52-3, thiab lwm yam.
3. Txuj kev faib tawm ntawm cov raj raj tsim
Cov kav dej square yog cais raws li cov qauv tsim: lub teb chaws tus qauv square kav, Japanese txheem square kav, imperial square kav, American standard square kav, European txheem square kav, thiab tsis yog-tus qauv square kav.
4. Cov qauv kev faib tawm ntawm cov kab hluav taws xob lub tog raj kheej
Cov kav dej square raug cais raws li lawv cov duab sib dhos: (1) yooj yim cross-section square pipes-square square pipes, rectangular square pipes (2) complex cross-section square pipes-flower-shaped square pipes, open-shaped square pipes, corrugated square pipes, special-shaped square pipes.
5. Kev kho deg kev faib tawm ntawm lub raj raj
Cov kav dej square tau muab faib ua cov kev kho deg: kub-dip galvanized square kav, electro-galvanized square kav, roj-coated square kav, pickled square kav
6. Siv kev faib tawm ntawm lub raj plaub
Square kav yog cais los ntawm lub hom phiaj-square kav rau kev kho kom zoo nkauj, square kav rau tshuab cuab yeej, square kav rau machinery kev lag luam, square kav rau tshuaj lom neeg kev lag luam, square kav rau steel lug, square kav rau shipbuilding, square kav rau tsheb, square kav rau steel beams thiab kem Tube, tshwj xeeb lub hom phiaj square raj
7. Kev faib tawm ntawm lub raj raj phab ntsa thickness
Rectangular pipes yog cais los ntawm phab ntsa thickness-super tuab-walled rectangular kav, tuab-walled rectangular kav thiab nyias-walled rectangular kav.
Siv
Mas siv nyob rau hauv cov ntaub thaiv phab ntsa, kev tsim kho, machinery manufacturing, steel siv tej yaam num, shipbuilding, hnub ci zog tiam brackets, steel qauv engineering, fais fab nroj tsuag, fais fab nroj tsuag, ua liaj ua teb thiab tshuaj machinery, iav kab hlau rhuav phab ntsa, tsheb chassis, tshav dav hlau, thiab lwm yam.
Theoretical hnyav
Theoretical nyhav ntawm galvanized square yeeb nkab ib 'meter'
4 * Sab Ntev * 0.00785 * 1.06 * Thickness 4 * Sab Ntev * 0.00785 * Thickness
Khoom Qhia
