1.Dab tsi yog qhov tseem ceeb ntawm cov txheej txheem rov qab? Nws ua haujlwm li cas?
Lub luag haujlwm tseem ceeb ntawm cov txheej txheem rov qab yog los muab kev tiv thaiv zoo rau cov phaj hlau, tiv thaiv kev tiv thaiv sab hauv. Nws cov txheej txheem tiv thaiv suav nrog kev tsim lub cev ntom ntom "txheej txheem cais." Los ntawm kev cais cov hlau phaj los ntawm ya raws thiab oxygen nyob rau hauv cov huab cua, lub nraub qaum txheej thaiv cov txheej txheem tsim nyog rau electrochemical corrosion, yog li txuas ntxiv kev pab cuam tag nrho ntawm lub phaj. Tib lub sijhawm, nws kuj tiv taus ntau yam khawb thiab puas thaum lub sijhawm khaws cia, kev thauj mus los, thiab kev ua haujlwm, muab kev tiv thaiv ntev ntev rau tag nrho cov phaj.
2.Dab tsi yog qhov txawv ntawm lub tsho tiv no, lub tsho sab saum toj, thiab primer?
Hauv cov qauv ntawm cov ntawv hlau precast, lub tsho tiv no sab saum toj, primer, thiab lub tsho rov qab txhua tus muaj lawv cov haujlwm tshwj xeeb. Qhov sib txawv yog raws li nram no:
Cov khoom sib piv: Topcoat, Primer, Backcoat
Core Functions: Kho kom zoo nkauj, tiv thaiv huab cua, muab kev ua haujlwm tshwj xeeb (xws li tus kheej- ntxuav)
Txhim kho adhesion, txhim kho corrosion kuj
Muab kev tiv thaiv zoo rau cov ntawv hlau, tiv thaiv kev tiv thaiv sab hauv
Kev Ua Tau Zoo: Cov kev xav tau siab tshaj plaws rau kev kho kom zoo nkauj thiab huab cua tsis kam
Cov kev xav tau siab tshaj plaws rau adhesion thiab corrosion kuj
Cov kev xav tau siab tshaj plaws rau kev tiv thaiv corrosion, khawb tsis kam, thiab kev ua haujlwm, qis qis rau kev kho kom zoo nkauj
Qhov chaw: Outermost txheej
Hauv qab lub tsho loj, saum lub txheej
Hauv qab txheej, txheej hauv qab hauv kev sib cuag ncaj qha nrog lub substrate
Common Coatings: Polyester (PE), Silicon{0}}hloov Polyester (SMP), Fluorocarbon (PVDF), thiab lwm yam.
Epoxy Resin (EP), Polyurethane (PU), thiab lwm yam.
Epoxy Resin (EP), Polyester
3.Yuav ua li cas xaiv qhov tsim nyog rov qab txheej txheej raws li daim ntawv thov?
Muaj peb yam tseem ceeb ntawm cov txheej txheem rov qab, uas tau hais los ntawm "2/1", "2/2", thiab "2/1M", txhua tus nrog nws qhov tseem ceeb:
** 2/1 Structure (Primer + Back Txheej, Ib qho - Sijhawm Ci):** Cov txheej txheej sab nraub qaum muaj qhov adhesion zoo, haum rau siv los ua veneer panels thiab feem ntau siv hauv kev tsim vaj huam sib luag sandwich.
** 2/2 Structure (Primer + Back Coating, Ob - Sijhawm Ci):** Cov txheej txheem rov qab muaj zog adhesion tab sis superior corrosion kuj thiab khawb tsis kam, ua rau nws haum rau profiled veneer panels.
** 2/1M Structure:** Qhov no yog Baosteel cov txheej txheem tsim khoom, sib txuas cov adhesion zoo ntawm "2/1" nrog cov kev tiv thaiv zoo tshaj plaws ntawm "2/2", uas ua rau muaj kev ua tau zoo tag nrho thiab kev muaj npe nrov hauv khw.
4.Dab tsi yog cov txheej txheem siv rau cov txheej txheem rov qab? Lawv cov kev xav tau ntawm kev ua haujlwm yog dab tsi?
Hom Lub Npe: Cov txheej txheem rov qab yog cov polyester ntau tshaj -raws li (xws li amino polyester) thiab epoxy-raws li, nrog polyester yog hom siv dav tshaj plaws. Lwm hom muaj xws li epoxy- hloov polyester thiab polyurethane. Alkyd coatings tsis tshua muaj siv vim lawv tsis muaj zog.
Kev Ua Tau Zoo: Piv rau topcoats, cov txheej txheem rov qab muaj cov kev xav tau qis dua rau cov khoom zoo nkauj thiab ntev ntev - huab cua tsis kam. Lawv cov kev ua haujlwm tseem ceeb yog: zoo corrosion kuj, khawb tsis kam, thiab tiv thaiv - thaiv cov khoom, thiab muaj peev xwm tiv taus molding, dabtsi yog khoov, thiab lwm yam kev ua haujlwm yam tsis muaj tawg lossis tev thaum ua haujlwm.
5.Dab tsi yog lub teb chaws tus qauv rau cov txheej txheem rov qab? Dab tsi yog cov thicknesses?
National Standard: Qhov zoo ntawm cov xim galvanized{0}}coated coils yuav tsum ua raws li GB/T 12754 series qauv, tam sim no version yog GB/T 12754-2019, muaj feem xyuam rau kev lag luam xws li kev tsim kho.
Thickness Specification: Tsis muaj ib lub teb chaws tus qauv rau cov txheej txheem rov qab; qhov tshwj xeeb thickness feem ntau pom zoo los ntawm tus neeg muag khoom thiab tus neeg yuav khoom hauv daim ntawv cog lus. Raws li cov ntaub ntawv siv tau, cov tuab tuab yog kwv yees li 5μm. Qhov kawg thickness yuav tsum xyuas kom meej tias nws ua tau raws li qhov yuav tsum tau rau corrosion kuj, khawb kuj, thiab ua.