Txawm hais tias daim ntawv zoo tib yam tuaj yeem ua tau zoo thiab zoo siv rau cov qauv luam ntawv yog nyob ntawm kev luam ntawv tsim nyog ntawm daim ntawv. Cov kev xav tau ntawm daim ntawv hauv cov qauv luam ntawv yog raws li hauv qab no: cov xim xim ntawm daim ntawv yuav tsum nyob ze li qhov ua tau rau cov xim purity ntawm tib qhov kev ntxhib los mos, plua plav ntawm daim ntawv yuav tsum tsis txhob siab tshaj qhov kev tso cai, nws yuav tsum muaj qhov tsawg kawg nkaus lub teeb xa mus, thiab nws yuav tsum muaj lub zog txhua yam kom ntseeg tau tias luam ntawv ib txwm muaj. Lub thickness, nruj, cov yam ntxwv ntawm daim ntawv yuav tsum nyob twj ywm tib yam nyob rau hauv txhua lub tshuab luam ntawv batch, daim ntawv npoo yuav tsum yog lub kaum sab xis thiab txoj kab nqes yuav tsum tsis txhob ntau tshaj ± 3 hli.
Daim ntawv smoothness: Lub smoothness ntawm daim ntawv ncaj qha txiav txim siab qhov zoo ntawm cov khoom luam tawm. Daim ntawv uas muaj siab smoothness tuaj yeem zoo dua tuaj rau hauv kev sib cuag nrog lub phaj luam ntawv thaum nias, tso cai rau cov xim pleev xim rau ntawm daim ntawv luam ntawv kom sib npaug ntawm daim ntawv. Daim ntawv uas tsis tshua muaj smoothness, txawm li cas los xij, yuav muaj kev sib cuag tsis sib xws ntawm lub phaj luam ntawv thiab daim ntawv saum npoo thaum nias, ua rau cov txheej number case raug xa mus rau daim ntawv tsis sib xws. Nyob rau hauv cov ntaub ntawv no, thaum siv daim ntawv uas tsis muaj smoothness, nws yog advisable kom tsim nyog kom lub printing siab thaum lub sij hawm luam ntawv txheej txheem kom tsim nyog them rau qhov tshwm sim ntawm tsis muaj zog luam ntawv cim los ntawm lub uneven nto.
Cov cwj pwm nqus dej ntawm daim ntawv: Kev nqus ntawm tus number case los ntawm daim ntawv feem ntau yog nyob ntawm qhov nruj ntawm cov fibers hauv daim ntawv (qhov loj ntawm qhov khoob). Thaum qhov khoob ntawm daim ntawv fibers me me, vim qhov tsis txaus ntawm fibrillation ntawm cov fibers, qhov kev txiav txim ntawm cov fibers capillaries raug cuam tshuam, ua rau txo qis hauv daim ntawv tus number case nqus peev xwm; Yog tias qhov sib txawv ntawm cov ntawv fibers loj dhau lawm, kev nqus ntawm cov ntaub ntawv ntau dhau yuav ua rau cov xim xim xim tuaj yeem nqus tau ua ke, ua rau muaj qhov tshwm sim los ntawm - luam tawm hauv cov khoom luam tawm.
Lub elasticity thiab plasticity ntawm daim ntawv: Thaum lub sij hawm ntau yam txheej txheem xws li khaws cia thiab luam ntawv, daim ntawv yuav raug hloov ntau yam vim qhov txawv ib puag ncig. Piv txwv li, nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, nws yuav tam sim hloov nws cov duab thiab qhov loj me, thiab thaum lub zog sab nraud nres, daim ntawv yuav rov qab mus rau nws qhov qub thiab loj. Cov txheej txheem deformation no hu ua rhiab elastic deformation; thaum daim ntawv raug rau sab nraud quab yuam thiab hloov nws cov duab thiab loj nyob rau hauv ib lub sij hawm ntawm lub sij hawm, thiab tom qab ntawd rov qab mus rau nws cov qub duab thiab loj thaum lub sab nraud rog nres, cov txheej txheem deformation no hu ua sluggish elastic deformation; thaum lub zog sab nraud raug tshem tawm, daim ntawv tseem nyob hauv lub xeev ntawm cov duab thiab qhov loj ntawm deformation tshwm sim los ntawm lub zog sab nraud, qhov no yog hu ua yas deformation. Cov elastic deformation thiab sluggish elastic deformation yog reversible deformations, thaum yas deformation yog irreversible.
Lub zog ntawm daim ntawv: Lub zog saum npoo ntawm daim ntawv ua lub luag haujlwm txiav txim siab hnav tsis kam, tiv thaiv - ntog- tawm ntawm hmoov, thiab tiv thaiv - fuzzing ntawm daim ntawv nto thaum luam ntawv. Txhawm rau kom tau txais cov dots meej dua thaum luam ntawv, qee tus cwj mem nrog viscosity siab dua yog siv. Yog tias lub zog saum npoo ntawm daim ntawv tsis txaus, nws yuav yooj yim ua rau cov hmoov thiab fuzz poob, thiab cov no yuav ua raws li qhov chaw ntawm lub phaj. Yog tias siv cov viscosity qis dua, hauv kev luam ntawv offset, tus number case thiab cov tshuaj tsim tawm yuav emulsify, uas ua rau qias neeg nyob rau hauv qhov chaw ntawm lub phaj luam ntawv.
Cov dej noo ntawm daim ntawv: Cov dej noo hauv daim ntawv ncaj qha cuam tshuam rau qhov zoo ntawm cov qauv luam tawm. Cov dej noo ntau dhau yuav txo tau lub zog ntawm daim ntawv. Nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, cov ntawv fibers yuav raug rub tawm, uas yuav txhim khu cov yas deformation thiab cuam tshuam qhov ziab ceev ntawm cov ntawv luam tawm. Yog tias cov dej noo tsawg dhau, daim ntawv yuav nkig thiab ua rau puas tsuaj, thiab hluav taws xob zoo li qub yuav tshwm sim. Txij li cov dej noo ntawm daim ntawv muaj kev sib raug zoo nrog ib puag ncig ib puag ncig, nws yog ib qho tsim nyog los npaj cov av noo thiab qhov kub thiab txias hauv chav luam ntawv kom muaj qhov sib npaug ntawm daim ntawv cov dej noo.
