Hauv kev lag luam ntim khoom yooj yim, kev sib txhuam coefficient ntawm yob ntim cov ntaub ntawv yeej ib txwm yog qhov tseem ceeb rau cov neeg tsim khoom thiab cov neeg siv khoom. Txawm hais tias nws yog cov tuam txhab sab saud uas xav tau kev sib txhuam qis qis thaum yuav khoom cua sov- cov khoom siv sib khi, lossis cov chaw tsim tshuaj thiab cov khoom noj hauv qab los kuaj qhov ua tau zoo thaum tau txais cov khoom ntim, ob qho tib si cuam tshuam txog kev lag luam kev ua haujlwm ntawm kev ua haujlwm zoo hauv kev ntim khoom.
Txawm li cas los xij, tau ntev, muaj qee qhov kev nkag siab tsis zoo thiab kev sib txawv hauv kev lag luam kev nkag siab thiab kev sim cov txheej txheem hais txog kev sib txhuam coefficients. Raws li xyoo ntawm kev ua tau zoo thiab kev tshawb fawb, Haide Ntim systematically tshuaj xyuas thiab qhia meej cov ntsiab lus ntawm no.
I. Qhov tseem ceeb ntawm kev sib txhuam coefficient thiab kev sim ntsuas tam sim no
Nyob rau hauv physics, kev sib txhuam coefficient (μ) yog txhais raws li qhov piv ntawm kev sib txhuam quab yuam (f) rau ntsug siab (N), piv txwv li, μ=f / N. Hauv kev siv cov khoom ntim, nws suav nrog "kev sib txhuam khub" uas tsim los ntawm cov khoom nto thiab nws cov khoom sib cuag.
Cov kev sim hauv qab no muaj ntau yam hauv kev lag luam:
Thaum yuav khoom cua sov-cov khoom sib khi, cov kev sib txhuam coefficient ntawm lawv cov cua sov- foob qhov chaw raug kuaj (hu ua "substrate sab hauv / sab hauv-cov kev sib txhuam txias").
Thaum xa cov ntaub ntawv yob tiav lawm, kev sib txhuam coefficient nruab nrab ntawm cov cua sov- foob qhov chaw ntawm cov yeeb yaj kiab sib xyaw yog raug kuaj (hu ua "cov yeeb yaj kiab sib xyaw sab hauv / sab hauv- khub sib txhuam txias").
Ob qhov kev ntsuam xyuas tau ua nyob rau hauv chav tsev kub, tab sis lawv cov txiaj ntsig tsis cuam tshuam qhov kev ua tau zoo ntawm cov khoom siv ntawm lub tshuab ntim khoom. Kev tshawb fawb ntawm Haide Packaging qhia tau hais tias qhov uas cov neeg siv khoom hauv qab no xav tau tiag tiag yog qhov kev ua tau zoo ntawm cov khoom ntim raws li kev ua haujlwm tiag tiag, tsis yog tus kheej - cov ntaub ntawv sib txhuam ntawm cov ntaub ntawv saum npoo ntawm chav tsev kub.
II. Kev sib txhuam tiag tiag hauv cov tshuab ntim tshuab
Kev khiav hauj lwm ib puag ncig ntawm automated ntim tshuab yog complex, nrog ntau hom kev sib txhuam khub:
Sab hauv / hlau sib txhuam khub: Ntim cov khoom siv cua sov- foob nto thiab stainless hlau ua nto.
Sab nrauv / hlau sib txhuam khub: Ntim cov khoom siv sab nrauv thiab cov hlau tsis muaj hlau sib sau.
Sab nrauv / roj hmab sib txhuam khub: Ntim cov khoom siv sab nrauv thiab roj hmab synchronous siv.
Qee cov cuab yeej siv tsis tau txawm tias muaj qhov zawv zawg kev sib txhuam.
Qhov tseem ceeb tshaj, kev ua haujlwm tsis tu ncua ntawm cov cuab yeej ua rau muaj qhov kub thiab txias ntawm cov ntsiab lus sib txhuam (feem ntau tshaj 40 degree), ua rau "cov kev sib txhuam kub". Yog li ntawd, thaum ntsuas qhov smoothness ntawm cov khoom ntim, yuav tsum tau them nyiaj rau kev sib txhuam coefficient ntawm cov khoom thiab cov hlau nto ntawm qhov kub thiab txias, tsis yog tus kheej - cov ntaub ntawv sib txhuam ntawm cov khoom ntawm chav tsev kub.
III. Qhov cuam tshuam tseem ceeb ntawm qhov kub thiab txias ntawm kev sib txhuam kev ua haujlwm
Raws li pawg txheej txheem T / CAB 0122-2021 "Technical Requirements for Surface Smoothness of Paper Packaging Prints," smoothness yuav tsum ua tib zoo xav txog kev sib txhuam zoo li qub thiab kev sib txhuam coefficient, tshwj xeeb tshaj yog rau qhov cuam tshuam ntawm qhov kub thiab txias.
Cov ntaub ntawv pov thawj qhia tau hais tias:
Thaum tshav kub kub- sealable substrate (CPP, CPE) sab hauv / sab hauv-coefficient kev sib txhuam txias: 0.1–1.0.
Tib yam khoom sab hauv/hlau-kev sib txhuam coefficient: 0.17–0.25.
Ntawm 40 degree, sab hauv / hlau-kub sib txhuam coefficient sib txawv hauv qhov ntau: 0.13–0.3.
Cov neeg ua haujlwm plam (oleamide thiab erucamide) muaj cov ntsiab lus melting ntawm 72-77℃thiab 78-81 degree, feem. Thaum cov khoom siv saum npoo kub nce vim muaj kev sib txhuam tsis tu ncua lossis cov khoom siv cua sov, tus neeg sawv cev hauv qab softens thiab migrate, ua rau muaj kev sib txhuam coefficient, thaum kawg tshwm sim raws li kev ua haujlwm tsis zoo.
IV. Haide Ntim cov lus pom zoo
Raws li kev txheeb xyuas saum toj no, Haide Ntim tau tshaj tawm cov lus pom zoo hauv qab no rau kev lag luam:
1. Tsim kom muaj ib qho kev ntsuam xyuas raug
Nres qhov simplistic nrhiav ntawm "cov ntaub ntawv sib txhuam coefficient tsawg."
Qhia meej meej hom kev sib txhuam khub thiab qhov kub thiab txias thaum lub sijhawm ntsuas.
Sab hauv / sab hauv- cov ntaub ntawv sib txhuam txias tsis tuaj yeem sawv cev qhov ua tau zoo hauv kev siv.
2. Txhim kho cov txheej txheem kev yuav khoom thiab kev sim ua kom zoo
Thaum yuav khoom cua sov-cov substrates sealable, tsom rau kev ntsuam xyuas lawv sab hauv / hlau-cov coefficient sib txhuam kub (pom tsawg dua lossis sib npaug rau 0.3).
Ua ntej xa cov khoom tiav, sim qhov kev sib txhuam tiag tiag ntawm cov khoom ntim hauv qab simulated ua haujlwm kub.
Rau cov cuab yeej tshwj xeeb (tsis muaj kev sib txhuam zawv zawg lossis tsuas yog sab nrauv / hlau sib txhuam), tsis tas yuav tsum muaj kev sib txhuam coefficient xeem clauses.
3. Txhawb kev txhim kho kev lag luam tus qauv
Pom zoo tias cov koom haum thiab cov tuam txhab cuam tshuam xav txog kev ua haujlwm tiag tiag thaum kho cov qauv.
Tsim ib txoj kev ntsuam xyuas raws li hom khoom siv thiab kev ua haujlwm.
V. Xaus
Kev tswj hwm ntawm kev sib txhuam coefficients rau yob ntim cov ntaub ntawv yuav tsum tsis txhob nyob twj ywm ntawm qib ntawm kev sim ib txwm tab sis yuav tsum tau nkag siab txog qhov kev ua haujlwm tiag tiag ntawm kev ntim khoom. Los ntawm kev tshawb fawb tsis tu ncua thiab kev ua tau zoo, Haide Ntim tau tsim kom muaj kev sib txhuam kev ua tau zoo thiab kev siv cov txheej txheem, muab cov neeg siv khoom nrog tag nrho - txheej txheem kev daws teeb meem los ntawm kev xaiv cov khoom siv thiab cov txheej txheem ua kom zoo rau kev siv cov lus qhia.
Peb tos ntsoov yuav ua haujlwm nrog cov neeg koom tes hauv kev lag luam los txhawb txoj kev loj hlob ntawm kev soj ntsuam cov khoom ntim khoom, kom ntseeg tau tias txhua qhov yob ntawm cov khoom ua haujlwm zoo ntawm siab - ceev automated ntim kab.