Imirongo yo gutwikamo ibice ibaho cyangwa ipfa kumubare umwe: imbaraga zishishwa hagati ya polymer yashongeshejwe na substrate. Extrusion coating adhesion ifatirwa mumadirishya yamasegonda make hagati ya sitasiyo ivura na nip, kandi ntanumubare woguhuza hasi ushobora gutabara urubuga rwinjiye mu rupfu rufite ingufu zitari nziza. Aka gatabo gakubiyemo uburyo bwo kuvura, imyitwarire yimyitwarire hamwe nimirongo ihindagurika itanga byukuri kwizerwa rikomeye, risubirwamo kumurongo wo gukuramo, gusohora lamination hamwe numurongo wa tandem.
Kuberiki Gusohora Kwiyongera ni Ikibazo Cyingufu Zubuso
Polyethylene yashongeshejwe isiga ipfa kuri dogere 300 kandi igera kuri nip mu isegonda cyangwa ibiri. Muri iryo dirishya rigomba guhanagura substrate burundu no gukora imigozi ya kabiri murwego rwo hejuru. Kuvomera bibaho gusa mugihe ingufu zubutaka zirenze hejuru yubushyuhe bwo hejuru bwashonga, kuri LDPE ni ingoma zigera kuri 31 kuri santimetero naho kuri cololymers nka EAA irashobora kuba munsi.
Filime itavuwe neza polyolefin yicaye kuri 29 kugeza 31, kuruhande. Niyo mpanvu gusohora ibishishwa byananiranye kubigega bitavuwe nimpamvu kuvura corona ari bisanzwe kuri buri murongo utwikiriye. Ubuvuzi buzamura ubuso bugera kuri 38 kugeza kuri 42 kandi cyane cyane, butangiza amatsinda yimikorere ya polar ikora imvano nyayo yimiti hamwe no gushonga, ntabwo ari van der Waals gusa.
Inshingano ifatika nuko udashobora kumenya ko witeguye kurwego rwa dyne wenyine. Ubuso busoma ingoma 40 kubera kwanduza - gutwarwa nubwitonzi bitwara bitandukanye nibisoma ingoma 40 kubera okiside nyayo. Ibintu bishya bifite akamaro: bivura hejuru yimyaka, hamwe na extrait coating adhesion igabanuka kuburyo bugaragara mugihe itandukaniro riri hagati yo kuvurwa na nip rirenze amasegonda make, cyane cyane muminsi yubushyuhe.
Gushiraho Corona Imbaraga zo Gukuramo Amashanyarazi
Ubucucike bwa Watt ni igenzura rihinduka, ryerekanwa nka watts kuri santimetero kare ku munota wubutaka bwavuwe. Kugirango ushiremo polyolefin kuri firime cyangwa file, umurongo utangira wa 6 kugeza 12 W / cm² / min utwikiriye imirongo myinshi.
Kubara mu buryo butaziguye: ubwinshi bwa watt bingana imbaraga zose zikoreshwa zigabanijwe nigicuruzwa cyubugari bwurubuga n'umuvuduko wumurongo. Umurongo wa 1,6 m wagutse kuri 200 m / min ushyira 20 kW itanga umusaruro hafi 6.3 W / cm² / min. Kongera umuvuduko kubugari buhoraho kandi ugomba gukuba kabiri imbaraga kugirango ufate urwego rumwe rwo kuvura.
Imitego ibiri ifata abakoresha inshuro nyinshi. Ubwa mbere, kuzamura imbaraga zirenze aho kugabanuka kugaruka gutwika hejuru, bigatera - molekuline - imyanda yuburemere kandi mubyukuri bigabanya imbaraga zo gufatira hamwe gusiga imipaka idakomeye. Icya kabiri, gukoresha imbaraga nke cyane kugirango uzigame ingufu zitanga ubuso bugerageza neza ako kanya ariko bikananirana nyuma yo gusaza.
Hindura mugupima imbaraga zishishwa, ntabwo nukwirukana numero ya dyne. Ongera imbaraga muntambwe 10 kwijana kugeza igishishwa cyimbaraga za plateaus, hanyuma usubire kumurongo wo hasi ugitanga intera nziza. Ngiyo ingingo yawe yo gushiraho.
Guhuza Umuti na Substrate
Buri substrate yitwara ukundi, kandi igenamiterere rikora kuri umwe rizananirwa kurindi.
Filime ya LDPE na LLDPE.Urubanza rwa kera. Irasaba ubuvuzi bwuzuye kugeza kuri 38 kugeza 42. Reba uburyo bwo kuvura inyuma kuri firime munsi ya microne 25, itera guhagarika kuri unind.
BOPP.Hejuru ya kristu isobanura ubuvuzi bwicaye hafi yubuso kandi bukera buhoro buhoro. Intego z'ingoma 38 kugeza kuri 40 zisanzwe zirahagije, ariko gufatira hamwe kwizana byunvikana kubyongeramo kunyerera bimuka hejuru bikabangamira guhuza.
PET.Itangira ingoma zigera kuri 41 zitavuwe kandi zikeneye inzira yumucyo gusa kugirango igere kuri 45 kugeza kuri 48. Kurenga - kwivuza nikibazo rwose hano kuko ubuso bushobora guhinduka ifu.
Aluminium.Ikora neza, isohoka rero yitwara ukundi kandi igipfundikizo kizunguruka kigomba gutwara umutwaro muremure. Ibice bya Oxide kuri fayili bihujwe na chimique hamwe nitsinda rya polar, niyo mpamvu gukuramo ibishishwa bifata ifiriti akenshi biba byiza iyo kuvura ari byiza.
Impapuro n'ikibaho.Ubushuhe bukabije nubushuhe. Itegereze ingoma 40 kugeza kuri 44, komeza ubwinshi bwa watt mu rugero, kandi ugenzure ubushuhe, kubera ko imyuka y'amazi iri mu cyuho ihagarika isohoka.
Gupfundikanya no guhinduranya ibyuma.Ibi bikenera ubwitonzi, neza - bivurwa kuko urwego rwimikorere ruto. Kugabanuka kwinshingano cyangwa kugenzurwa - imashini ivura ikirere plasma nigisubizo cyiza kuruta pasiporo iremereye.
Imirongo Ihinduranya Guhindura Extrusion Coating Adhesion
Umuti nigitekerezo kimwe gusa. Imirongo myinshi ihinduka ihindura ibisubizo kandi igomba gucungwa hamwe.
Igihe kiri hagati yo kuvurwa na nip.Nibihinduka cyane. Komeza inzira ngufi nkuko bisanzwe bishoboka. Buri segonda yinyongera yo kwerekanwa igura amatsinda ya polar nkuko agenda yerekeza mubwinshi.
Ubushyuhe bwurubuga.Uburyo bwiza bwo kuvura butera imbere kurubuga rushyushye, kandi gufatira hamwe biva muri substrate ishyushye kuri nip. Ibinyuranye, ubushyuhe bukabije butwara amatsinda mashya.
Ozone no gukuramo.Ozone nubuvuzi - ibicuruzwa, ntabwo bivura ubwabyo, ariko kandi birabora. Gukuramo bihagije birinda ibikoresho kandi bikomeza icyuho cyikirere gihoraho, gihindura ibishishwa bifata neza kugirango bikore.
Umuvuduko ukabije kandi uture.Umuvuduko mwinshi utwara gushonga muri micro - porosity kandi itezimbere urufunguzo. Ibi byuzuza imiti ihuza imiti aho kuyisimbuza.
Gupfa no mu kirere.Oxidation yo gushonga mu cyuho cy'ikirere itera amatsinda ya polar kuruhande rwa polymer. Ikinyuranyo kinini cyumwuka cyongera okiside ya elegitoronike kandi gishobora kwishyura igice cyo kuvura intege nke - ariko nanone gishobora guhungabanya umutekano muke no mwijosi - muri.
Gukonjesha kurangiza.Umuzingo wa chill uhinduranya ububobere hejuru yubuso, ntabwo bigira ingaruka kumubano ariko bigira ingaruka kumyandikire yo hasi no kumurika.
| Substrate | Intego | Ubucucike bwa Watt (W / cm² / min) | Ingaruka nyamukuru |
|---|---|---|---|
| LDPE | 38–42 | 6–10 | Kuvura inyuma |
| LLDPE film | 38–42 | 8–12 | Gusaza mbere yo guswera |
| BOPP | 38–40 | 5–8 | Kwimuka kwimuka |
| PET | 45–48 | 3–6 | Kurenga - kuvura, ifu |
| Aluminium | 42–46 | 6–12 | Kuzamura umutwaro |
| Impapuro / ikibaho | 40–44 | 4–8 | Ubushuhe buri mu cyuho |
| Filime | 44–50 | 3–5 | Ibyangiritse ku cyuma |
Gupima no Kugenzura Kwiyongera Kwikuramo
Ukeneye sisitemu ebyiri zo gupima: imwe kubuso, imwe kumurongo.
Ku buso, amakaramu ya dyne cyangwa wino yipimisha bitanga byihuse / oya - genda usome. Koresha hagati no kumpande zombi, ako kanya nyuma yo kuvurwa na none mbere gato ya nip niba inzira ari ndende. Andika indangagaciro; inzira igenda ikubwira electrode cyangwa dielectric ikeneye kwitabwaho.
Kuri bond, koresha T - igeragezwa ryibishishwa kurugero rwakize. Ako kanya nyuma yo gukuramo ibishishwa, gufatana biracyatera imbere, bityo ikizamini cyakuwe kumurongo urenze cyangwa ugasobanura agaciro kanyuma bitewe na polymer. Imyitozo isanzwe nugutanga ingero kumasaha 24 mbere yo kwipimisha.
Kurikirana imbaraga zishishwa kurwanya imiti yashizweho mumurongo woroshye. Iyo extrusion coating adhesion igenda, log irakubwira niba kuvura, substrate lot cyangwa umuvuduko wumurongo byahindutse, kandi ibyo bigabanya igihe cyo gusuzuma.
Amakosa asanzwe yangiza ibicuruzwa bitwikiriye
- Kuvura kure cyane.Inzira ndende hagati yumuvuzi nu rupfu ireka ubuso bukaruhuka. Himura sitasiyo hafi cyangwa kuzamura ubwinshi bwa watt kugirango wishyure, ariko ntukemere igihombo gusa.
- Kurenga - kwivuza.Imbaraga zo kumeneka "kugira umutekano" zitera imipaka idakomeye yimyanda ya okiside kandi igabanya gufatira hamwe. Ibindi ntabwo aribyiza.
- Kwipimisha gusa hagati yurubuga.Gufata impande zananiranye mbere kandi bigaragaza kwambara electrode cyangwa dielectric.
- Kwirengagiza ubushuhe.Ubushuhe bukabije bw’ibidukikije buhagarika isohoka kandi bwinjiza amazi mu cyuho. Ibihe byashizweho - guhindura ingingo nibisanzwe mubihingwa bishyuha.
- Gukoresha igifuniko kitari cyo.Silicone - umuzingo utwikiriye ukorera hejuru ya watt yuzuye uteza imbere inzira ziyobora kandi utanga ubuvuzi butaringaniye, bityo gufunga ibishishwa bitandukana mubugari.
- Kutagenzura ibimenyetso bitavuwe.Buri gihe ujye ubika icyitegererezo cya substrate imwe itavuwe kugirango wemeze ko umuvuzi akora akazi.
Ibibazo
Q1: Ni uruhe rwego rwa dyne nkeneye kugirango rushyizwemo neza?
Kuri polyolefin substrates, igamije ingoma 38 kugeza 42 kuri santimetero kuri point ya nip, ntabwo ari iyo kuvura. Kuri PET na file, ingoma 45 nintego nziza. Buri gihe wemeze hamwe nigeragezwa ryibishishwa, kuva urwego rwa dyne ni proksi, ntabwo intego.
Q2: Nshobora kubona extrusion coating adhesion nta kuvura corona?
Gusa hamwe na substrate isanzwe itwara chimie polar, nkimpapuro zimwe zometseho cyangwa pre - firime zerekanwe. Kuri polyolefine idateganijwe, hejuru yubuvuzi ntibushobora guhanagurwa neza nuwashonga, kandi gufatana bizananirana mugihe cyogukoresha imashini cyangwa ubushyuhe.
IKIBAZO: Ubuvuzi bwangirika bangahe mbere yo gutwikirwa?
Kubora biterwa n'ubushyuhe, ubushuhe hamwe na substrate. Mugihe gikonje, cyumye urubuga ruvuwe rushobora gufata igice kinini cyurwego rwiminsi. Kumurongo ushyushye, wuzuye utwikiriye umurongo gutakaza igihombo mumasegonda make yingendo birashobora kuba ingoma nyinshi, komeza rero inzira ivurwa mugufi.
Q4: Ese umuvuduko wo hejuru wumurongo ubabaza gukuramo ibicuruzwa?
Ntabwo niba ubwinshi bwa watt buhoraho. Umuvuduko ugabanya igihe cyo gutura mugusohora, ugomba rero kongera imbaraga ugereranije. Iyo umuvuzi ari hejuru yimbaraga zayo, umuvuduko uhinduka imbogamizi kandi ugomba gutinda cyangwa kwemera kuvurwa hasi.
Q5: Kuki gutandukanya ibishishwa bitandukana biva kumuzingo?
Impamvu zikunze kugaragara ni substrate nyinshi zitandukanye, impinduka muri anti - guhagarika cyangwa kunyerera byongeweho imitwaro, gutembera mu cyuho cya electrode, kwambara dielectric, hamwe nubushuhe bwibidukikije. Andika ibishishwa ibisubizo birwanya substrate nimero yo gutandukanya inkomoko.
Q6: Ozone yaba yangiza kubitwikiriye?
Ozone ubwayo ntabwo yangiza inkwano, ariko ozone itagenzuwe yerekana gukuramo bidahuye, bihindura ikirere cyu icyuho bityo rero gusohora. Ozone ndende kandi yangiza ibice byicyuma hafi yimyaka hamwe na reberi ya rubber.
Q7: Nkwiye kuvura impande zombi za substrate?
Koresha uruhande rwakira igifuniko. Kuvura impande zombi rimwe na rimwe bikoreshwa mukugenzura gutembera cyangwa gutegura isura yinyuma kubikorwa bizakurikiraho, ariko byikubye kabiri ubushyuhe bwumuriro kandi byongera ibyago byo guhagarika kuri unind.
Umwanzuro
Extrusion coating adhesion nigisubizo cyibikorwa, ntabwo ari ibintu bifatika, kandi igenamigambi ryo kuvura nicyo kintu kinini ugenzura. Shiraho ubwinshi bwa watt uhereye kuri substrate n'umuvuduko wumurongo, genzura hamwe nigeragezwa ryibishishwa kuburugero rwateganijwe, komeza inzira ivurwa mugufi, kandi ibisubizo byibisubizo kugirango drift igaragara hakiri kare.
Ikoranabuhanga rya Shenzhen Hefeng Jiada ritanga imiti ivura corona, imashini zitunganya plasma hamwe n ibikoresho byogusukura urubuga byakozwe muburyo bwo gutwika no kumurongo. Sangira substrate yawe, ubugari bwumurongo, umuvuduko nintego yibishishwa byimbaraga, kandi injeniyeri zacu zizapima sitasiyo yo kuvura kandi dusabe igenamiterere rifata extrusion coating adhesion ikora nyuma yo kwiruka.