1.Yuav ua cov txheej txheej cuam tshuam rau kev cuam tshuam kub tsawg?
Fluorocarbon txheej (PVDF): Muaj cov tshuaj fluorine atom hauv nws cov qauv molecular, nws muab nyiaj ntau rau cov roj molecular saw yooj yim. Nws tswj hwm tau zoo heev txawm tias ntawm -40 Qib (raws li pom los ntawm qhov qis-kub), ua rau nws cov hom co -40), ua rau nws hom kev sib tsoo nrog qhov ntsuas kub zoo tshaj plaws.
Silicon-hloov polyester (SMP): Qhov kev ua tau zoo tshaj plaws uas muaj qee qib ntawm kev hloov pauv ntawm -20℃thiab -30 degree. Txawm li cas los xij, nws brittleness nce hauv qab -30 degree, thiab microcracks tuaj yeem tshwm sim hauv kev kuaj.
Txheem polyester (PE): nws qhov qis-kub brittleness yog ntau tshaj, nrog kev yoog raws qib -10℃thiab -20 degree. Cov txheej muaj qhov ua rau ua kom tsis muaj ntsej muag lossis tawg thaum raug cuam tshuam rau kev cuam tshuam (xws li lawg (cuam tshuam los ntawm cov khoom tawv).
Txheej Txheem Tshaj Tawm Tshwj Xeeb: Qee cov tuam ntxhab txhim kho qhov qis-qhov kub ntawm cov roj hmab (xws li qhia cov qauv molecular (xws li los ntawm kev qhia ntu). Piv txwv li, "tsawg-kub tiv taus PE" tuaj yeem txo qis dua brittle transition kub los-15℃rau -30 degree.
2.How Ua li cas thiaj cuam tshuam rau qhov kev cuam tshuam kub tsis tshua muaj cua sov?
Qhov tsawg-kub cuam tshuam nyuaj ntawm lub substrate (steel phaj) yog qhov kev txhawb nqa ntawm cov xim sib txawv, tshwj xeeb tshaj yog thaum muaj kev cuam tshuam tag nrho, muaj peev xwm tiv thaiv kev cuam tshuam tag nrho
Kub-DIP galvanized substrate (DX51d + z): cov roj ntsha tsis muaj roj av siv, nrog cov roj qis qis qis. Qhov kev cuam tshuam hluav taws xob (Charpy V-ISCH) ntawm -40 Qib tuaj yeem ncav cuag ntau dua 27J, uas yog qhov tsim nyog rau thaj chaw txias.
Alu-Zinc-Coated Substrate (AZ150): Cov Khaub Ncaws Alloy tsis cuam tshuam rau cov tawv ntawm substrate nws tus kheej. Qhov nyuaj ntawm cov txheej txheem yog ze rau ntawm lub galvanized substrate, tab sis saib xyuas yuav tsum tau them rau cov txheej kub (kom tsis txhob poob tawm vim kev cuam tshuam rau kev cuam tshuam).
Txias-dov substrate (Spcc): Yog tias nws yog cov khoom siv roj carbon, qis dua qub, qhov qes-kub yog tau; Yog tias cov ntsiab lus carbon yog qhov siab (xws li cov hlau carbon hlau), nws yog ib qho yooj yim los ua nkig ntawm tsawg kub thiab tsis haum rau thaj chaw huab cua txias heev.
3.Yuav ua li cas yog lub zog ntawm lub zog ntawm txheej thiab lub substrate cuam tshuam kev cuam tshuam kub tsawg?
Ntawm tsawg kub, qhov sib txawv hauv thermal nthuav coefficients ntawm txheej thiab substrate tuaj yeem ua rau muaj kev ntxhov siab cuam tshuam. Yog tias txoj hlua khi muaj zog tsis txaus (hla kev txiav txim siab<1), the coating can easily peel from the substrate during impact, exacerbating damage. For example, epoxy primers offer superior low-temperature adhesion to common polyester primers, better maintaining the bond between the coating and the substrate.
4.How nws ua nyob rau hauv tiag tiag scenarios?
Nyob rau hauv Northern lub caij ntuj no (-10℃rau -30 degree) Cov khaubncaws sab nraud povtseg tsis tau muaj feem ntau yuav muaj dej sib tawg, thiab yog tias dej nkag thiab khov tom qab, txheej yuav tev tawm ntawm ntau dua.
Hauv cov chaw siab tshaj plaws thiab cov chaw txias (xws li Qinghai-Tibet Plane-yuav tsum tau xaiv, qhov chaw ntsuas dej nyob rau hauv lub caij ntuj no), nyob rau hauv cov xim txheej laum dej yuav tawg thaum lub sij hawm teeb tsa lossis siv vim tsawg-kub.
5.Qhov yog qhov ntsuas yog qhov kev ntsuas kom txhim kho kev ntseeg tau rau hauv qhov chaw kub tsawg?
Saib xyuas cov txheej txheem txheej txheem siab: PVDF Fluorocarbon cov tshuaj lom zem yog nyiam hauv qhov chaw qis (qis dua-16 yuav tsum zam; Yog tias cov nyiaj txiag tsis muaj tsawg, tsawg-kub tau hloov kho SMP tsho tshaj plaws tuaj yeem xaiv tau (cov txiaj ntsig ntawm qhov kev xeem qis qis yuav tsum tau paub tseeb).
Sib txuam cov high-sincness substrates: siv cov roj carbon steel substrates (xws li DX51d + Z, Carc Golbon qib qis) thiab zam kom muaj cov pa roj carbon monoxide. Yog tias siv sab nraum zoov (xws li ru tsev thiab phab ntsa ntoo), nws raug nquahu kom lub substrate thickness loj dua los yog sib npaug rau 0.4 hli los txhim kho cov kev cuam tshuam tag nrho kev cuam tshuam.
Kev tswj cov kev tswj hwm thiab cov txuas txuas: thaum ua (xws li kev siv hluav taws xob thiab nce qib ntau dhau) los tiv thaiv cov txheej rading) los tiv thaiv cov txheej rading) los tiv thaiv cov txheej rading los ntawm kev tawg vim yog brittleness; Reserve expansion thiab mertaction kis thaum lub teeb tsa los txo qhov kev cuam tshuam ntawm qhov kub nyhiab ntawm cov txheej kub.