Ntev npaum li cas cov xim acrylic khij lub cim kawg?

Qhov siv {- lub sij hawm (ziab lub sijhawm thiab kho lub sijhawm Nto nto qhuav lub sijhawm feem ntau yog 10-2 teev, lub sijhawm kom qhuav yog 30-24 teev, nws yuav siv sijhawm li 7 hnub kom muaj txiaj ntsig. Qhov kev tsom xam tshwj xeeb yog raws li hauv qab no:
Kev tshawb xyuas lub sijhawm kom qhuav
Lub sij hawm qhuav:
Cov xim pleev xim rau cov xim dej Saum npoo deg kom qhuav lub sij hawm yuav txuas mus rau 2-4 teev ntawm tsawg kub (piv txwv li}} degree) lossis siab vaum ib puag ncig.
Hnyav -}} Raws li Acrylic Xim: Feem ntau 15 teev chav tsev kub 25 degree, zoo ventilated). Cov kuab tshuaj yaj thiab qhuav sai sai, tab sis hom qog (piv txwv li, xy, xyab) tuaj yeem cuam tshuam rau lub sijhawm tshwj xeeb.
Thermoset acrylic txheej: feem ntau yuav tsum muaj kub kub (eg . 120-150℃lub sijhawm ntawm txog 5 {}}}}}} feeb. Muaj tsawg dua chav tsev kub {}}}}} lub sijhawm ua kom sov sov thiab lub sijhawm qhuav tuaj yeem mus txog 24-48 teev (nyob ntawm cov kev tawm tsam ntawm tus neeg sawv cev hla).
Lub sijhawm qhuav:
Dej -}} Raws li cov xim acrylic: 12-24 teev nyob rau hauv chav tsev kub thiab tej zaum yuav noj 7 hnub kom muaj cov tuab thiab ib puag ncig). Yog tias qhov kub yog qis (piv txwv li . 5 degree), lub sijhawm qhuav) yuav txuas ntxiv mus rau ntau tshaj 48 teev. Thaum ziab, ceev lub sijhawm ziab, ntawm 60-80 degrees Celsius, lub sijhawm qhuav yuav ua kom luv rau 10-20 feeb, qhov tseeb qhuav feeb yog li 30-1it.
Hnyav -}} Raws li cov xim acrylic: 4-8 teev chav ntsuas kub, 24 teev lossis yog li tuaj yeem kho tiav. Baking tej yam kev mob (piv txwv li . 60) tuaj yeem ua kom luv rau 1-2 teev.
Thermosetting acrylic xim: nyob rau hauv baking xwm txheej, qhuav hauv 30 feeb rau 1 teev.
Yam cuam tshuam rau lub sijhawm qhuav
Ambient kub: qhov ntsuas kub siab dua, qhov nrawm dua tus nqi kom qhuav. Tsawg Tsawg (piv txwv li<5°C) can significantly prolong drying time and may even prevent paint from curing. Construction temperatures of 5-35°C (water-based) and 10-35°C (solvent type) are recommended.
Air humidity: High humidity (e.g. >85%) qeeb qeeb dej lossis cov kuab tshuaj evaporation. Cov xim hydrating muaj ntau cuam tshuam thiab yuav muaj "fake dryness" (qhuav nto, tsis qhuav hauv qab).
Thickness ntawm txheej: Thaum coated txheej tuab, lub puab txheej ua kom qeeb, ua rau cov kab nrib pleb Nws raug nquahu tias qhov tuab ntawm ib qho txheej txheem tsuas yog 60-80 microns (qhuav zaj duab xis).
Qhov cua ua pa tawm: cov dej evapostsheej ua kom lub sijhawm muaj dej kom qhuav, thiab ziab pa kom qhuav, thiab cov pa roj teeb meem).
Txheej mis: cov xim pleev xim muaj cov tshuaj sai-}}}} Cov kuab tshuaj kom qhuav (xws li acetone) qhuav sai dua; Cov xim pleev kob ntxiv retarders tuaj yeem ntev dua, tab sis maj mam maj mam.