Ntawm cov khoom siv hlau,txhuasCov raj muaj cov yam ntxwv ntawm lub zog siab, zoo nkauj tsos, lub teeb yuag, tsis muaj tshuaj lom, thiab tsis muaj ntxhiab. Lawv feem ntau siv rau hauv kev lag luam tshuaj pleev ib ce thiab tshuaj. Raws li cov ntaub ntawv luam ntawv, hlau muaj cov kab ua haujlwm zoo thiab ntau yam qauv tsim. Cov nyhuv luam ntawv yog qhov zoo rau kev sib koom ua ke ntawm nws cov nqi siv thiab kev kos duab.
luam ntawv hlau
Luam tawm rau ntawm cov ntaub ntawv tawv xws li cov phaj hlau, cov thawv hlau (cov khoom pwm), thiab cov ntawv ci hlau. Kev luam tawm hlau feem ntau tsis yog cov khoom kawg, tab sis kuj yuav tsum tau ua rau ntau yam thawv, npog, cov ntaub ntawv tsim kho, thiab lwm yam.
01Nta
①Cov xim ci ntsa iab, cov khaubncaws sab nraud povtseg nplua nuj, thiab cov teebmeem pom kev zoo.
②Cov ntaub ntawv luam ntawv muaj kev ua tau zoo thiab muaj ntau yam hauv kev tsim qauv. (Nws tuaj yeem ua tiav cov qauv tsim tshiab thiab tshwj xeeb, tsim ntau yam tshwj xeeb-puab lub tog raj kheej, cov kaus poom, cov thawv thiab lwm yam thawv ntim khoom, ua kom cov khoom zoo nkauj thiab txhim kho kev sib tw ntawm cov khoom)
③Nws yog qhov zoo rau kev paub txog kev sib koom ua ke ntawm tus nqi siv thiab kev kos duab ntawm cov khoom. (Cov khoom siv hlau muaj kev ua tau zoo thiab kev tiv thaiv kev hnav thiab kev ruaj khov ntawm cov kua mem tsim cov xwm txheej rau kev paub txog kev tsim tshwj xeeb thiab kev luam ntawv zoo nkauj, txhim kho kev ruaj khov thiab kev saib xyuas ntawm cov khoom, thiab yog kev sib koom ua ke ntawm tus nqi siv khoom thiab kev kos duab)
02 Kev xaiv txoj kev luam ntawv
Nyob ntawm seb lub substrate zoo li cas, feem ntau ntawm lawv siv offset printing, vim tias offset printing yog indirect printing, vam khom lub elastic roj hmab roller los tiv tauj lub hard substrate kom ua tiav qhov kev hloov pauv ntawm number case.
①Daim ntawv tiaj tiaj (tinplate peb daim tuaj yeem) ------ offset luam ntawv
②Cov khoom pwm (cov kaus poom txhuas ob daim uas muaj cov ntawv nplaum) ----- kev luam ntawv offset letterpress (kev luam ntawv offset qhuav)
Cov kev ceev faj
Ua ntej: Rau kev luam ntawv ntawm cov khoom siv hlau, txoj kev luam ntawv ncaj qha ntawm kev luam ntawv ncaj qha rau lub phaj luam ntawv hlau tawv thiab lub substrate tawv tsis tuaj yeem siv, thiab kev luam ntawv tsis ncaj qha feem ntau siv.
Qhov thib ob: Nws yog feem ntau luam tawm los ntawm lithographic offset printing thiab letterpress qhuav offset printing.
2. Cov ntaub ntawv luam tawm
Luam tawm rau ntawm cov ntaub ntawv tawv xws li cov phaj hlau, cov thawv hlau (cov khoom pwm), thiab cov ntawv ci hlau. Kev luam tawm hlau feem ntau tsis yog cov khoom kawg, tab sis kuj yuav tsum tau ua rau ntau yam thawv, npog, cov ntaub ntawv tsim kho, thiab lwm yam.
01 daim hlau tinplate
(Tin-plated hlau phaj)
Cov ntaub ntawv luam ntawv tseem ceeb rau kev luam ntawv hlau yog tin-plated rau ntawm ib daim hlau nyias nyias. Lub thickness feem ntau yog 0.1-0.4 hli.
①Kev pom ntawm tinplate:
Lub luag haujlwm ntawm cov roj zaj duab xis yog los tiv thaiv cov khawb ntawm qhov chaw los ntawm kev sib txhuam thaum lub sijhawm teeb tsa, ntim lossis thauj cov ntawv hlau.
② Raws li cov txheej txheem plating tin sib txawv, nws muab faib ua: kub dip plated tinplate; electroplated tinplate
02Wuxi phaj hlau nyias
Ib lub phaj hlau uas tsis siv tin kiag li. Cov txheej tiv thaiv yog tsim los ntawm cov hlau chromium thiab chromium hydroxide nyias heev:
①TFS daim duab hla ntu
Cov txheej chromium hlau tuaj yeem txhim kho kev tiv thaiv xeb, thiab chromium hydroxide puv cov qhov hws ntawm cov txheej chromium kom tiv thaiv xeb.
②Cov Lus Cim:
Ua ntej: Qhov ci ntsa iab ntawm TFS steel phaj tsis zoo. Yog tias luam tawm ncaj qha, qhov meej ntawm tus qauv yuav tsis zoo.
Qhov thib ob: Thaum siv, thov pleev xim los npog qhov chaw ntawm lub phaj hlau kom tau txais cov kua nplaum zoo thiab tiv taus corrosion.
03 zinc hlau phaj
Cov hlau phaj txias dov yog plated nrog zinc molten los ua ib lub phaj hlau zinc. Kev pleev xim rau lub phaj hlau zinc yuav dhau los ua ib lub phaj zinc xim, uas yog siv rau cov vaj huam sib luag kho kom zoo nkauj.
04 Daim ntawv txhuas (cov khoom siv txhuas)
①Kev faib tawm
Cov ntawv txhuas muaj cov yam ntxwv zoo heev. Tib lub sijhawm, qhov cuam tshuam ntawm qhov chaw ntawm cov ntawv txhuas siab, qhov luam tawm tau zoo, thiab cov nyhuv luam tawm zoo tuaj yeem tau txais. Yog li ntawd, hauv kev luam ntawv hlau, cov ntawv txhuas tau siv dav.
② Cov yam ntxwv tseem ceeb:
Piv nrog cov hlau tinplate thiab TFS, qhov hnyav yog 1/3 sib dua;
Tsis tsim cov oxides tom qab pleev xim zoo li cov hlau phaj;
Yuav tsis muaj ntxhiab hlau vim yog cov hlau ions uas los nag;
Kev kho qhov chaw yooj yim, thiab cov xim ci ntsa iab tuaj yeem tau txais tom qab pleev xim;
Nws muaj kev ua tau zoo ntawm kev hloov pauv cua sov thiab kev cuam tshuam lub teeb, thiab muaj peev xwm npog tau zoo tiv thaiv lub teeb lossis roj.
③Cov Lus Cim
Tom qab rov ua dua txias ntawm cov phaj txhuas, cov khoom yuav ua rau brittle thaum nws tawv, yog li cov ntawv txhuas yuav tsum tau quenched thiab tempered.
Thaum txheej lossis luam ntawv, qhov muag yuav tshwm sim vim qhov kub nce siab. Cov khoom siv phaj txhuas yuav tsum tau xaiv raws li lub hom phiaj ntawm kev siv.
3. Xim luam ntawv hlau (xim)
Qhov saum npoo ntawm cov hlau substrate yog du, tawv thiab tsis nqus cov kua mem zoo, yog li yuav tsum siv cov kua mem luam ntawv uas qhuav sai. Vim tias cov ntim khoom muaj ntau yam kev xav tau tshwj xeeb thiab muaj ntau cov kauj ruam ua ntej luam ntawv thiab tom qab luam ntawv rau cov thawv hlau, muaj ntau hom kua mem luam ntawv hlau.
01 Xim sab hauv
Cov kua mem (txheej) uas pleev rau ntawm phab ntsa sab hauv ntawm cov hlau hu ua txheej sab hauv.
①Kev Ua Haujlwm
Xyuas kom meej tias muaj kev cais cov hlau tawm ntawm cov khoom hauv kom tiv thaiv cov khoom noj;
Npog cov xim ntawm lub tinplate nws tus kheej.
Tiv thaiv cov hlau ntawv los ntawm xeb los ntawm cov ntsiab lus.
② Cov Kev Cai
Cov xim pleev no sib chwv ncaj qha rau cov khoom hauv, yog li cov xim pleev yuav tsum tsis muaj tshuaj lom thiab tsis muaj ntxhiab. Nws yuav tsum tau ziab hauv lub tshuab ziab tom qab pleev xim sab hauv.
③Hom
Xim txiv hmab txiv ntoo
Feem ntau yog cov khoom siv sib txuas oily resin.
Cov txheej txheem ua los ntawm pob kws thiab cov nplej
Feem ntau yog oleoresin hom binder, nrog rau qee cov khoom me me ntawm zinc oxide ntxiv.
hom txheej nqaij
Txhawm rau tiv thaiv kev xeb, cov khoom siv sib txuas phenolic resin thiab epoxy resin feem ntau yog siv, thiab qee cov xim txhuas feem ntau raug ntxiv los tiv thaiv kev ua qias tuaj ntawm sulfur.
Xim dav dav
Feem ntau yog oleoresin hom binder, nrog rau qee cov phenolic resin ntxiv.
02Txheej txheej sab nraud
Cov kua mem (txheej) siv rau kev luam ntawv rau ntawm txheej sab nraud ntawm cov thawv ntim hlau yog txheej sab nraud, uas yog siv los ua kom pom tseeb thiab ruaj khov.
① Xim pleev xim
Siv ua tus primer ua ntej luam ntawv kom ntseeg tau tias muaj kev sib txuas zoo ntawm cov kua dawb thiab daim hlau thiab txhim kho qhov lo rau ntawm cov kua.
Cov kev cai lij choj: Tus primer yuav tsum muaj kev sib raug zoo nrog cov hlau nto thiab kua mem, zoo fluidity, lub teeb xim, zoo dej tsis kam, thiab lub txheej tuab ntawm txog 10 μm.
②Kua xim dawb - siv los tsim cov hauv paus dawb
Siv ua xim keeb kwm yav dhau los rau kev luam tawm cov duab thiab cov ntawv puv nplooj ntawv. Lub txheej yuav tsum muaj kev nplaum zoo thiab dawb, thiab yuav tsum tsis txhob tig daj lossis ploj mus thaum ci hauv qhov kub siab, thiab yuav tsum tsis txhob tev lossis tev thaum lub sijhawm ua cov kaus poom.
Lub luag haujlwm yog ua kom cov kua xim luam tawm rau ntawm nws ci dua. Feem ntau siv ob lossis peb txheej txheej los ua kom tau qhov dawb raws li xav tau. Txhawm rau kom tsis txhob muaj xim daj ntawm cov kua dawb thaum ci, qee cov xim, hu ua toners, tuaj yeem ntxiv rau.
③Kub kua xim
Ntxiv rau cov yam ntxwv ntawm cov kua luam ntawv lithographic, nws kuj muaj kev tiv taus zoo rau kev ci kub, ua noj thiab cov kuab tshuaj. Feem ntau ntawm lawv yog cov kua luam ntawv UV hlau. Nws cov khoom rheological yeej zoo ib yam li cov kua luam ntawv lithographic, thiab nws cov viscosity yog 10 ~ 15 vib nas this (txheej: No. 4 khob / 20 ℃)
4. Kev luam ntawv hlau
Cov yeeb nkab hlau yog lub thawv ntim khoom cylindrical ua los ntawm cov khoom siv hlau. Nws feem ntau yog siv rau kev ntim cov khoom zoo li cov nplaum, xws li cov thawv tshwj xeeb rau cov tshuaj txhuam hniav, cov tshuaj pleev khau thiab cov tshuaj pleev kho mob. Kev luam ntawv yeeb nkab hlau yog kev luam ntawv ntawm qhov chaw nkhaus. Lub phaj luam ntawv yog lub phaj tooj liab thiab lub phaj resin photosensitive, siv cov txheej txheem luam ntawv letterpress offset: cov yeeb nkab hlau feem ntau yog hais txog cov raj txhuas. Kev tsim khoom thiab kev luam ntawv ntawm cov raj txhuas tau ua tiav ntawm cov kab ntau lawm tsis siv neeg. Tom qab kub stamping thiab annealing, cov txhuas billet pib nkag mus rau hauv cov txheej txheem luam ntawv.
01Nta
Cov tshuaj nplaum muaj qee qhov viscosity, yooj yim rau lo thiab deform, thiab yooj yim rau ntim nrog cov yeeb nkab hlau. Nws cov yam ntxwv yog: kaw tag nrho, tuaj yeem cais cov teeb pom kev sab nraud, cua, dej noo, thiab lwm yam, zoo tshiab thiab khaws cia tsw, yooj yim ua cov ntaub ntawv, ua haujlwm tau zoo, ntim. Cov khoom lag luam yog ceev, raug thiab pheej yig, thiab nrov heev ntawm cov neeg siv khoom.
02 txoj kev ua tiav
Ua ntej, cov khoom siv hlau raug ua rau lub cev hose, thiab tom qab ntawd luam ntawv thiab tom qab luam ntawv tiav. Tag nrho cov txheej txheem los ntawm kev ntxuav lub raj, txheej sab hauv, primer mus rau kev luam ntawv thiab capping yog ua tiav ntawm kab tsim raj tsis siv neeg.
03hom
Raws li cov ntaub ntawv ua lub hose, muaj peb hom:
①Tin hose
Tus nqi siab heev thiab tsis tshua muaj neeg siv. Tsuas yog siv qee cov tshuaj tshwj xeeb vim yog qhov xwm txheej ntawm cov khoom.
② Cov kav dej ua los ntawm cov hlau lead
Cov hlau txhuas muaj tshuaj lom thiab ua rau lub cev puas tsuaj. Tam sim no tsis tshua muaj neeg siv (yuav luag txwv tsis pub siv) thiab tsuas yog siv rau hauv cov khoom uas muaj fluoride xwb.
③Aluminium hose (feem ntau siv dav)
Muaj zog heev, zoo nkauj, lub teeb yuag, tsis muaj tshuaj lom, tsis muaj saj thiab tus nqi qis. Nws yog siv dav hauv kev ntim khoom ntawm cov tshuaj pleev ib ce, cov tshuaj txhuam hniav zoo, tshuaj, khoom noj, cov khoom siv hauv tsev, cov xim, thiab lwm yam.
04 kev kos duab luam ntawv
Cov txheej txheem ntws yog: luam tawm xim keeb kwm yav dhau thiab ziab - luam tawm cov duab thiab cov ntawv nyeem thiab ziab.
Qhov chaw luam ntawv siv lub qauv satellite thiab muaj lub hauv paus xim thiab lub tshuab ziab. Lub tshuab luam ntawv xim yog sib cais los ntawm lwm lub tshuab, thiab lub tshuab ziab infrared tau teeb tsa hauv nruab nrab.
①Luam xim keeb kwm yav dhau
Siv cov xim dawb los luam cov xim hauv paus, cov txheej tuab dua, thiab qhov chaw tiaj tus thiab du. Rau cov teebmeem tshwj xeeb, cov xim keeb kwm yav dhau tuaj yeem hloov kho rau ntau xim, xws li liab dawb lossis xiav dawb.
②Drying lub keeb kwm yav dhau xim
Muab tso rau hauv qhov cub kub heev rau ci. Lub raj yuav tsis tig daj tom qab ziab tab sis yuav tsum muaj me ntsis nplaum rau ntawm qhov chaw.
③ Luam cov duab thiab cov ntawv nyeem
Lub cuab yeej hloov kua mem xa cov kua mem mus rau lub phaj nyem, thiab cov duab thiab cov ntawv sau ntawm txhua lub phaj luam ntawv raug xa mus rau daim pam. Lub log roj hmab luam cov duab thiab cov ntawv sau rau ntawm phab ntsa sab nraud ntawm lub raj dej ib zaug.
Cov duab thiab cov ntawv sau ntawm cov kav dej feem ntau yog khov kho, thiab cov ntawv luam tawm ntau xim tsis sib tshooj. Lub log roj hmab tig ib zaug kom ua tiav kev luam ntawv ntawm ntau lub log. Lub log muab tso rau ntawm lub mandrel ntawm lub disc tig thiab tsis tig ntawm nws tus kheej. Nws tsuas yog tig los ntawm kev sib txhuam tom qab kov lub log roj hmab.
④Kev luam ntawv thiab ziab
Cov yeeb nkab luam tawm yuav tsum tau ziab hauv qhov cub, thiab qhov kub thiab sijhawm ziab yuav tsum tau xaiv raws li cov khoom antioxidant ntawm cov kua mem.
Lub sijhawm tshaj tawm: Tsib Hlis-15-2024