PPGI Waxbarashada Dhexdeeda | Dibadda iyo Sharciga Loogu Hesho Steel

Dhagarta PPGI waa dhintay in ay ku jirin macluumaad ah ee carruurta, waxa uu yahay qabaday dhexeeya in ay soo galin kartaa sharciga ah ee dibadda ka mid ah oo ku yaal carruurka tropikal ee ammaanada iyo desertka carruurta iyo dadweynaha samada ee la xiriira saltiga. Macluumaad carruurta waa la sameeyay gacanta galvanized zinc iyo sistema ee lacagta ee orgaanik. Gac zinc ayaa sameeyay si barxadda hore ee soo baxday acidda steel haddii lacagta ay uga jiro ganacsan. Xaqiiqisada electrochemical ee zinc waa la sameeyay si ay ugu adeegsaday steel, kuwaas oo ay uga sameeyeen lacag zinc ee ay ku caddeystay carruurta kale.Above gac zinc, lacagta ayaa loo eegay si barxadda carruurta. PPGI ee dhammaystii ayaa ka soo diray lacag guulida ah ee ku saabsan polyester, silicone modified polyester (SMP), ama fluoropolymer (PVDF) lacagta, kuwaas oo ay ku saabsan carruurka ee ku jirto. Lacagta polyester ayaa ku haystay carruur badbaadiyaha ah ee carruurta iyo shaqsiinta rangaca haddii carruurka ay ku jirto moderate, markii SMP lacagta ayaa ku haystay duurkasta ah ee carruurta carruurta iyo UV exposure iyo temperature fluctuations. PVDF lacagta, ee dhammaantii ayaa ku haystay ideal ee carruurka samada ama reega carruurka ee ku jirto UV radiation kooda, ayaa ku haystay shaqsiinta ah ee fadhiista, chalking, iyo chemical erosion.Manufacturers waxaa lagu isticmaalay lacag primers binfadhka ee ku jiran zinc iyo topcoat si ay ku yihiin adhegsan iyo carruur badbaadiyaha ah. Dhibaatooyinka multi layer ayaa ku jiray testing carruurta ah, kuwan salt spray tests, UV exposure tests, iyo humidity resistance trials, si ay ku yimid compliance ee standard internationaal ee ku jirto ASTM D1654 ama ISO 6270. Haddii ku jirin coastal zones, kombinashin gac zinc ee carruur badbaadiyaha ah iyo lacagta ee ay ku jirto salt moisture waa PPGI choicen reliable ee structures ee ku jirto port facilities iyo seaside buildings. Haddii ku jirin regions ee carruurka dheer ama freezing temperatures, macluumaad carruurta ee ay ku jirto water penetration iyo thermal expansion/contraction ayaa ku yimid risk coating cracking ama substrate damage, si ay ku sameeyeen long term performance in dynamic weather conditions.