Gravure printing ntsib teeb meem condensation? Nrhiav tus nqi qis- cov kev daws teeb meem ntawm no!

Gravure printing ntsib teeb meem condensation? Nrhiav tus nqi qis- cov kev daws teeb meem ntawm no!

Vim yog cov qauv ntawm gravure presses thiab cov hlau txheej nyob rau saum npoo ntawm txhuas txheej, condensation yog heev yuav tshwm sim thaum lub caij los nag txhua xyoo, nrog rau condensation yog heev hnyav nyob rau hauv yav qab teb cheeb tsam. Yog hais tias condensation tshwm sim thaum lub sij hawm luam ntawv, nws zoo heev cuam tshuam kev luam ntawv tswj kev tswj thiab luam ntawv zoo, ncaj qha cuam tshuam rau cov txheej txheem ntau lawm thiab cov khoom tiav. Hauv kev teb rau cov teeb meem thiab cov xwm txheej saum toj no, tus sau yuav sau cov kev paub dhau los thiab muab kev nkag siab raws li kev tsim khoom siv tau.

Qhov tshwm sim ntawm condensation phenomena

01/ Ua rau muaj kuab paug

Condensation yog thaum cov roj los yog kua condenses thaum txias, xws li dej vapor hloov mus rau hauv dej thaum txias, thiab dej tig mus rau hauv dej khov thaum txias. Yog li ntawd, qhov sib txawv ntawm qhov kub thiab txias ntau dua ntawm cov khoom siv saum npoo thiab ib puag ncig ib puag ncig, qhov siab dua qhov txheeb ze av noo nyob rau hauv cov huab cua, ua rau condensation ntau dua. Ntawm qhov kub thiab txias, cov dej vapor tsawg dua nyob rau hauv ib lub ntim ntawm huab cua, huab cua qhuav dhau los; Qhov dej noo ntau dua, huab cua ntau dua.

02/ Condensation phenomenon nyob rau hauv txhuas txheej

Aluminized zaj duab xis yog ib zaj duab xis ua los ntawm lub tshuab nqus tsev aluminium plating uas siab -purity txhuas hlau yog vaporized ntawm qhov kub siab (1100 ~ 1200 degree) rau hauv roj. Tom qab ntawd, thaum cov yas zaj duab xis dhau los ntawm lub tshuab nqus tsev vacuum evaporation chamber, lub gaseous aluminium molecules precipitate mus rau saum npoo ntawm cov yas zaj duab xis, tsim ib lub ci, xim hlau zaj duab xis.

Aluminium yog ib qho zoo heev conductor ntawm tshav kub, nrog thermal conductivity peb zaug ntau dua hlau. Industrially, aluminium feem ntau yog siv los tsim ntau yam khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. Yog li ntawd, cov ntaub ntawv aluminium kub thiab txias sai sai ntawm cov txheeb ze qhov kub thiab txias, yooj yim tsim qhov sib txawv ntawm qhov kub thiab txias. Thaum qhov kub thiab txias ntawm cov khoom yog qis dua qhov ntsuas kub, ib puag ncig noo noo yuav condense thiab adsorb rau cov khoom. Nrog rau qhov sib txawv ntawm qhov kub thiab txias ua ke nrog cov av noo siab heev thaum lub caij plum nag, cov txheej txheem txhuas ntawm cov txheej txheej aluminium yooj yim tsim tau "dej pos huab" tsis pom ntawm qhov muag liab qab, uas yog qhov tshwm sim ntawm cov txheej txheem ntawm txhuas txheej. Txawm li cas los xij, aluminium txheej yog ib qho ntawm cov khoom tseem ceeb hauv kev lag luam ntim khoom lag luam. Txawm hais tias yog cov khoom siv sib xyaw lossis cov khoom siv luam ntawv, condensation muaj feem cuam tshuam rau kev ua haujlwm tom ntej.

03/ Condensation tshwm sim nyob rau hauv gravure phaj rollers thiab number case daim hlau

Lub gravure phaj cov menyuam muaj lub hauv paus hlau cov menyuam, nickel txheej, txheej tooj liab, thiab chrome txheej. Cov txheej txheem tsim khoom siv electroplating lwm cov khaubncaws sab nraud povtseg mus rau cov hlau cov menyuam nto raws li cov menyuam steel. Lub phaj rollers yog ua los ntawm cov hlau los ntawm sab hauv mus rau txheej txheej, thiab ntau yam khoom siv hlau kuj muaj qhov kub thiab txias sib txawv nrog ib puag ncig.

Tus cwj mem lub tais yog ib qho ntawm cov khoom siv tseem ceeb hauv gravure luam ntawv, nqa cov luam ntawv npaj thiab cov kuab tshuaj diluted. Lub phaj roller yog soaked nyob rau hauv tus number case nyob rau hauv tus number case phaj. Nyob rau hauv qhov kub ntawm - ib puag ncig lub caij ntuj sov, cov evaporation ntawm cov kuab tshuaj nyob rau hauv lub phaj number case accelerates, thiab evaporation ntawm cov kuab tshuaj yog tshem tawm cov cua sov los ntawm lub phaj roller thiab tus number case nyob rau hauv tus number case disk, ua rau ob lub phaj roller thiab number case rau ib txhij tsim ib tug kub qhov sib txawv nrog cov txheeb ze ambient kub. Thaum cov huab cua nyob ib puag ncig thiab muaj cov dej noo ntau nyob ze, cov dej condensed yuav adsorb rau ntawm lub phaj cov menyuam los ua "dej pos huab," uas tseem nyob hauv tus cwj mem thiab ua rau cov dej noo ntau dhau. Nyob rau tib lub sijhawm, evaporation tshuav nyiaj li cas ntawm cov kuab tshuaj dilution cuam tshuam, ua rau cov resin swell thiab precipitate, uas ua rau luam ntawv sticking thiab phaj paste tshwm sim, ncaj qha cuam tshuam rau ziab ceev thiab luam ntawv zoo.

Kev tshuaj xyuas cov kev daws teeb meem kev lag luam uas twb muaj lawm

Tam sim no, qee lub tuam txhab nruab nrab thiab loj tau ntim txhua lub tshuab luam ntawv thiab teeb tsa qhov ntsuas kub tsis tu ncua (lub zog siv li 10 ~ 15kW) kom ntseeg tau tias qhov chaw tsim khoom tag nrho tswj hwm lub xeev ntawm qhov ntsuas kub thiab av noo. Txawm li cas los xij, lwm cov lag luam me thiab me me yuav tsum tau tso tseg lub tswv yim no rau ntau yam laj thawj, thiab tsuas tuaj yeem tsim qee yam qis - thiab qis - kawg luam ntawv thiab ntim khoom. Rau cov ntaub ntawv luam tawm, cov lag luam nruab nrab thiab loj muaj cov kev daws teeb meem los khaws cov ntaub ntawv aluminized zaj duab xis hauv ib lub tsev rau khoom uas muaj cov tub yees thiab cov khoom siv dehumidification. Txawm li cas los xij, rau cov tuam txhab luam ntawv me me thiab tsis muaj qhov tsim nyog khaws cia, cov ntaub ntawv luam tawm ncaj qha cuam tshuam rau kev luam ntawv zoo.

01/ Qhov zoo ntawm cov kev daws teeb meem uas twb muaj lawm

Qhov kom zoo dua ntawm cov kev daws teeb meem uas twb muaj lawm yog tias los ntawm kev hloov pauv mus rau winding, txawm tias muaj pes tsawg pawg luam tawm, cov txheej txheem tsim tawm los ntawm substrate thiab number case rau phaj rollers ib txwm ua haujlwm nyob rau hauv ib qho chaw ruaj khov thiab tswj tau qhov kub thiab txias, ua rau nws hloov tau mus rau qhov chaw tsim khoom thiab tsis cuam tshuam los ntawm lub caij nyoog kub thiab av noo. Ntau yam ntaub ntawv luam tawm xws li cov yeeb yaj kiab, aluminized films, ntawv, inks, thiab cov kuab tshuaj kuj tsis cuam tshuam los ntawm kev hloov pauv ib puag ncig.

02/ Qhov tsis zoo ntawm cov kev daws teeb meem uas twb muaj lawm

Qhov tsis zoo ntawm cov kev daws teeb meem uas twb muaj lawm yog tias cov khoom ntim ntim yuav tsum muaj ntau qhov chaw, thiab tus nqi ntawm qhov chaw kaw yog siab dua thaum ua haujlwm raws li tag nrho cov cuab yeej luam ntawv rhiav. Tus nqi yuav khoom ntawm cov khoom siv dehumidification yog siab, txij li tsawg li ib puas txhiab yuan mus rau ntau npaum li ob lossis peb puas txhiab yuan. Tsis tas li ntawd, nws ua txhaum txoj cai ntawm kev txuag hluav taws xob. Cov khoom siv luam ntawv yog tag nrho qhuav los ntawm thermal zog, thiab lub hauv paus ntsiab lus ntawm cov khoom siv dehumidification yog siv compressor txias, uas tsuas tuaj yeem ua tiav dehumidification ntawm qhov kub thiab txias. Nws yog ib qho tsim nyog los xyuas kom meej tias ob qho tib si kev khiav hauj lwm kub ntawm kev luam ntawv thiab ziab tshuab thiab qhov kub thiab txias ntawm qhov kev cob qhia ntau lawm, uas ua rau kev siv hluav taws xob nce ntxiv thiab yog li cuam tshuam rau cov nqi tsim khoom. Cov teeb meem no yog qhov laj thawj ncaj qha vim li cas cov tuam txhab me thiab micro lag luam tsis kam lees txais loj - cov cuab yeej ua kom txias thiab dehumidification.

Cov kev daws teeb meem tshiab thiab cov tswv yim

01/ Aluminized zaj duab xis noo noo tov

(1) Txawm hais tias qhov loj me, gravure luam ntawv lag luam muaj qhov nruab nrab - qhov loj me lossis me me sib xyaw ua ke. Ua ntej luam tawm thaum lub sij hawm siab -lub caij ntuj sov plum los nag, cov yeeb yaj kiab aluminized yog ci hauv chav kho kom sov li 6 ~ 12 teev, thiab luam ntawv yuav tsum ua kom tiav hauv ib teev tom qab ci. Lwm yam dej noo- cov ntaub ntawv luam tawm yooj yim kuj tuaj yeem siv cov txheej txheem saum toj no, xws li cov ntaub ntawv PA nylon.

(2) Ua ntej luam ntawv nrog txhuas txheej, siv thawj pab pawg xim ci ci ua ntej nkag mus rau pawg xim thib ob rau kev luam ntawv. Yog tias qee cov tuam txhab lag luam lossis cov khoom lag luam siv txhua pawg xim, tsuas yog ib qho khoom ua ntej - ci tuaj yeem ntxiv ntawm cov txheej txheem unwinding thiab thawj pab pawg xim. Cov cuab yeej siv cua sov yuav tsum yog 50 ~ 100cm ntev, nrog zoo -tsim cua nkag thiab qhov hluav taws xob, thiab qhov kub zoo ntawm 60 ~ 80℃yog qhov tsim nyog.

02/ Kev daws teeb meem rau phaj rollers thiab number case phaj condensation phenomena

Plate roller thiab number case phaj sib cuam tshuam nrog ib leeg. Lub tswv yim muab rau hauv qhov kev daws teeb meem no yog siv qhov ua haujlwm txias ntawm lub condenser kom ua tiav qhov ntsuas kub tsis tu ncua (kwv yees li 26 degree) dehumidification. Cov dej noo los ntawm cov huab cua nyob ib ncig ntawm lub phaj rau cov menyuam thiab cov phaj number case yuav adsorb mus rau lub condenser raws li qhov kub thiab txias, uas tuaj yeem txo cov evaporation ntawm cov kuab tshuaj hauv tus number case. Cov cua kub tawm los ntawm cov evaporator hauv lub tub yees tuaj yeem muab sib xyaw rau hauv qhov cub tshuab, yog li txo qhov kev siv hluav taws xob xav tau rau qhov cub cua sov.

Txhua pab pawg xim yog nruab nrog cov khoom cua txias thiab dehumidification, nrog lub zog ntawm 1.0 ~ 1.5 HP thiab kev siv zog ntawm li 750 ~ 1200W. Qhov zoo dua yog tias qee cov khoom luam tawm tuaj yeem siv ob peb txheej sib cais yam tsis muaj tag nrho - xim xim. Kev sib khi ib nrab ntawm pawg xim yog ua kom tus nqi qis dua thiab tswj tau yooj yim dua. Cov cuab yeej condensation yog ntsia rau hauv cov hlau tsis muaj steel zawj nyob rau hauv qab ntawm tus number case ncoo raws li tsim. Rau lub tshuab luam ntawv ib txwm muaj 7 ~ 10 xim teeb, tus nqi tuaj yeem tswj tau ntawm 20,000 ~ 30,000 yuan. Nrog rau kev kaw ib nrab thiab kev hloov kho, tag nrho cov nqi yuav tsis tshaj 40,000 ~ 50,000 yuan. Tsis tas li ntawd, los ntawm kev rov ua kom sov, kev siv hluav taws xob tiag tiag thiab cov nqi qis dua li phau ntawv cov duab.

Hauv cov ntsiab lus, cov kev daws teeb meem hauv daim ntawv no yog ib txoj hauv kev los daws qhov tsim cov dej pos huab hauv cov ntaub ntawv hlau, ya raws - cov ntaub ntawv ua yeeb yaj kiab, thiab cov ntawv phaj rau cov ntawv luam yeeb nyob rau hauv qhov kub thiab av noo thaum lub caij los nag. Piv nrog rau yav dhau los txoj hauv kev, qhov kev daws teeb meem no tsim nyog rau ntau yam kev lag luam, muaj cov nqi qis dua, muaj kev siv hluav taws xob tsawg dua, thiab ua kom zoo dua qub nrog kev txuag hluav taws xob hauv lub teb chaws thiab kev txo qis emissions.