Lub qhov rooj qhov rooj yog feem ntau ua los ntawm cov khoom siv siab -, xws li galvanized aluminium alloy. Cov khoom no tsis tsuas yog muaj zog compressive siab (txog 155MPa) tab sis kuj zoo heev corrosion kuj, tso cai rau ntev - siv nyob rau hauv cov av ntub, plua plav chaw nres tsheb tsis yooj yim rusting. Lub thickness ntawm lub bracket kuj yog ib qho tseem ceeb parameter; thicker brackets muab kev txhawb nqa zoo dua thiab ruaj khov. Ib qho tuab tuab yog 8 hli, uas yog txaus rau feem ntau cov chaw nres tsheb cov kev xav tau.
Cov khoom siv rau lub qhov rooj hauv qab ntawm qhov chaw nres tsheb yog steel lossis aluminium alloy. Qhov kev xaiv tshwj xeeb yog nyob ntawm qhov load- cov kev cai bearing thiab kev siv ib puag ncig.
Kev xaiv khoom siv:
Hlau: ruaj khov thiab ruaj khov, nrog lub siab load-cov kabmob muaj peev xwm (piv txwv li, txias- cov hlau dov tuaj yeem txhawb nqa 750kg), tab sis hnyav dua thiab tuaj yeem xeb.
Aluminium Alloy: Lub teeb yuag thiab xeb- tiv taus, haum rau qhov hnyav- cov ntaub ntawv rhiab heev, tab sis nrog me ntsis qis dua - cov kabmob muaj peev xwm tshaj hlau.
Lwm Cov Khoom Siv: Qee cov khoom siv galvanized steel los txhim kho xeb, lossis muab cov ntaub ntawv tshwj xeeb xws li carbon steel lossis carbon fiber ntau los txhim kho lub zog.