Heerka dahaarka, oo sidoo kale loo yaqaan flatness ama labbiska, ayaa ah tilmaame muhiim ah oo lagu cabbiro waxqabadka qurxinta ee dahaarka.Heerka Qaranka GB1750-89(79) waxa uu bixiyaa habab gaar ah oo lagu go'aaminayo heerka.
Rinjiga waa la cadaydaa ama lagu buufiyaa saxanka salka oo leh meel siman sida waafaqsan habka guud ee diyaarinta filimka rinjiga.Inta buraashku furayo qaabka, saacada joogsiga ayaa la hawlgelinayaa si loo cabbiro wakhtiga loo baahan yahay burushka si ay calaamadda burushka u baaba'do oo ay u sameyso dusha filim oo siman, oo lagu muujiyey daqiiqado.
Ku buufinta habka kor ku xusan, u fiirso dusha rinjiga si aad u gaarto labis, siman, waqti xaalad laalaab la'aan.Hab kale ayaa ah in la hagaajiyo muunadda rinjiga ee viscosity codsiga, mari muunada leh primer, ka dhig mid siman oo xitaa, ka dibna dhexda filimka oo leh burush dherer ah buraash calaamad burush ah, u fiirso inta jeer ee calaamadda burushka ay baaba'ayso. , filimka waxaa lagu soo celiyaa si siman oo siman.
Guud ahaan marka loo eego filimka si loo gaaro dusha siman ee qiimeynta waqtiga: in aan ka badneyn 10 daqiiqo ayaa fiican;10 ilaa 15 daqiiqo ayaa u qalma;15 daqiiqo ka dib ma labbis uma qalmo (daaha aan la qurxin ma samayn karo shuruudahan)
Qiimaynta waxqabadka sinaanta waxay leedahay xiriir weyn oo kala duwan iyo viscosity ee dahaarka.Waxqabadka siman ee dahaarka viscosity-ga sare ayaa guud ahaan ka hooseeya dahaarka viscosity hoose.Iyada oo horumarinta sayniska iyo tignoolajiyada, sannadihii la soo dhaafay, qalabyo badan oo cusub ayaa si tartiib tartiib ah loo dabaqay, sida polyacrylic acid esters, hantida guud ee rheological iyo hantida siman ee daahan ayaa si weyn loo hagaajin karaa.
Inta badan calaamadaha burushka ama diirka liimiga ah ayaa baaba'aya, way sii fiicnaanaysaa dusha dahaarka, taas oo ah, si ka sii fiican waxqabadka qurxinta.Waxqabadka sinaanta ee dahaarka waxay la xiriirtaa halabuurka iyo saamiga resin, pigment iyo dareeraha, iyo sidoo kale habka codsiga.
Waqtiga boostada: Nov-21-2023