Surface treatment yɛ papa te sɛ hardware a ɛde nsuo no ma no nko ara. Corona treater electrode te beae pɔtee a anyinam ahoɔden bɛyɛ surface chemistry, na gyinaesi biara a ɛfa ne nneɛma, geometry ne onwini kwan ho no si gyinae sɛ ebia wo film, foil anaa coating line no tu mmirika kɛse anaasɛ ɛyɛ limps ka webs a wɔapow ho. Saa akwankyerɛ yi nantew fa mfiridwuma a mfaso wɔ so a ɛwɔ electrode a wɔpaw akyi ma mfiridwuma mu corona treaters, plasma treaters ne web cleaning systems a wɔde di dwuma wɔ extrusion, lamination ne printing lines so.
Nea Corona Treater Electrode Yɛ Ankasa
Corona treater electrode yɛ conductive element a ɛyɛ high-voltage field no wɔ treating gap no so. Wɔde current a ɛsesa wɔ 10 kHz kɔsi 40 kHz di dwuma wɔ electrode ne grounded roll ntam, na mframa a ɛwɔ gap no mu no mu paapae kɔ plasma a ɛyɛ nwini a ions, electrons ne ozone wom. Saa plasma no tow hyɛ polymer no ani, bubu carbon-hydrogen nkitahodi na ɛde oxygen-a ɛwɔ dwumadi akuw te sɛ hydroxyl, carbonyl ne carboxyl radicals bata ho. Nea efi mu ba ne ahoɔden a ɛkɔ soro a ɛwɔ soro, a wɔtaa susuw wɔ dynes mu wɔ sɛntimita biara mu.
Electrode no ntow voltage ngu gap no mu kɛkɛ. Ne nsɛsoɔ na ɛhwɛ baabi a afuo no kɔ, sɛdeɛ nsuo a ɛfiri mu no trɛw, ɔhyew dodoɔ a ɛba ne sɛdeɛ aduru no si fam pɛpɛɛpɛ wɔ ntaban no ntrɛmu so. Corona treater electrode a wɔanpaw no yiye no ma banding, pinholes ne akyi ayaresa, bere a nea ɛne no hyia yiye-de dyne level a ɛyɛ pɛ fi ano kosi ano a ahoɔden a wɔtwetwe a ɛba fam koraa ma.
Esiane sɛ ayaresa no nkɛntɛnso porɔw bere kɔ so nti, ɛsɛ sɛ electrode no nso gyina pintinn. Sɛ nsu a wɔde gu mu no nyɛ pɛ a, wɔn a wɔyɛ adwuma no tua ka denam ahoɔden a wɔma ɛkɔ soro so, na ɛma roll coating no sɛe ntɛmntɛm na ɛma gyinabea no nyinaa adwumayɛ nkwa nna yɛ tiaa.
Electrode Nneɛma a Wɔde Toto Ho
Mmusua abien a ɛwɔ tumi kɛse ne aluminium ne dade a ɛnyɛ den, a emu biara wɔ aguadi-offs soronko.
Aluminium electrodes yɛ hare, ne bo nyɛ den na ɛnyɛ den sɛ wɔde mfiri bɛyɛ, na ɛma nkurɔfo ani gye ho ma narrow-web ne laboratory units. Wɔfa ɔhyew kɔ yiye nanso wɔyɛ oxidize bere nyinaa wɔ ozone-atwaho a atwa nsu a ɛretu no ho ahyia no mu. Oxidation ma ɔfasu no yɛ mmerɛw, na corona treater electrode a ɛyɛ den no sɛe dielectric covering a ɛwɔ counter-roll no so ntɛmntɛm sen nea wɔayɛ no fɛfɛɛfɛ.
Dade a ɛnyɛ den a wɔde yɛ anyinam ahoɔden a ɛtaa yɛ 304 anaa 316 no ko tia ozone ntua na ɛkura wɔn nsusuwii a ɛma wotumi gyina ano mfe pii. Wɔn bo yɛ den na wɔn mu duru yɛ kɛse, a ɛho hia wɔ wide-web lines a ɛsɛ sɛ wɔma electrode nhyiam no so ma threading. Wɔ nneyɛe mu no, corona treaters a wɔyɛ no dodow no ara a ɛboro mita biako trɛw wɔ wɛb mu no de dade a ɛnyɛ den na edi dwuma.
Nneɛma bi a wɔayɛ no de dɔte anaa nikel a ɛyɛ tratraa kata nsu a wɔde gu mu no ano. Coatings trɛw ɔsom nkwa nna nanso ɛde huammɔdi kwan ba: sɛ coating no spalls, exposed base metal arcs na pits roll covering. Enti ɛsɛ sɛ wɔhwɛ electrode ahorow a wɔakata so no wɔ nhyehyɛe koro no ara mu sɛnea dielectric no ankasa yɛ no.
Kɔbere ne kɔbere pue bere ne bere mu wɔ low-frequency anaasɛ plasma mfiri titiriw bi mu, nanso wɔn erosion rate ma ɛyɛ nea enye a wɔpaw ma kɔ so yɛ.
Ceramic Dielectric ne Roller Nneɛma a Wɔde Kata So
Wɔde dielectric, abakɔsɛm mu silicone rɔba anaa, wɔ nnɛyi corona treaters so no, plasma-sprayed ceramic te sɛ aluminium oxide anaa chromium oxide akata nhoma mmobɔwee a ɛhwɛ electrode no so. Dielectric no yɛ capacitor a ɛto current ano hye fa gap no mu, enti ne kɛse ne dielectric no kyerɛ ayaresa no mu den tẽẽ.
Silicone a wɔde kata so no bo nyɛ den na ɛnyɛ den sɛ wɔbɛsesa nanso ɛsɛe wɔ ahoɔden a ɛkorɔn a ɛkɔ so daa ase, na ɛyɛ ɔkwan a ɛma nsu fa mu a awiei koraa no ɛyɛ tiaa. Nkuku a wɔde kata so no tumi gyina watt a ɛkɔ soro koraa ano na ɛkura ne kɛse mu mfe du anaa nea ɛboro saa, nanso ɛyɛ mmerɛw na ɛyɛ mmerɛw sɛ mfiri bɛsɛe no esiane corona treater electrode a ɛnkɔ so pɛpɛɛpɛ nti.
Mfomso a wɔtaa di ne sɛ wɔde dɔte roll covering ne aggressive electrode profile abɔ mu. Ceramic pɛ nsuo a ɛyɛ brɛoo, a wɔboa no yie; anoano a ano yɛ nnam ma afuw no yɛ kɛse na ebetumi apaapae ade a wɔde akata so no mu. Sɛ wokyerɛ corona treater electrode a, kyerɛ no tia dielectric a wode tu mmirika ankasa no, na ɛnyɛ generic data sheet.
Roll diameter nso ho hia. Mmobɔwee kɛse ma contact tenten pii ne ayaresa tra bere tenten, a ɛma wotew ahoɔden so a worenhwere dyne level.
Electrode Geometry ne Gap Nsiesiei
Gap size ne ade biako pɛ a ɛyɛ mmerɛw sen biara wɔ station no mu. Corona treater a wɔtaa yɛ no tu mmirika 1.0 mm kosi 2.5 mm wɔ electrode ano ne dielectric ani ntam. Ɔkwan a ɛsõ dodo no ma ahoɔden a ɛsɛe a ɛho hia no kɔ soro, na ɛhyɛ ahoɔden pii na ɛma ozone ne ɔhyew pii ba. Gap a ɛyɛ ketewaa dodo no de asiane ba sɛ ɛbɛka, arcing na asɛe roll no ntɛm ara.
Electrode profile ahorow no hwe ase wɔ nsusuwii abiɛsa a ɛtrɛw mu: blade anaa sekan electrodes ma ntrɛwmu teateaa, mpaboa electrodes ma webs a ɛtrɛw, ne electrode a wɔakyekyɛ mu ma nhama a ɛho hia sɛ wɔde sa yare a ɛyɛ fã bi-trɛw. Segmented designs ma wo dum ankorankoro zones, a mfasoɔ wɔ so berɛ a woretu mmirika wɔ webs teateaa so wɔ wide corona treater electrode assembly - a wotu mmirika ne trɛw nyinaa wɔ web teateaa so no sɛe ahoɔden na ɛma zones a wɔmfa nni dwuma no yɛ hyew dodo.
Field uniformity gyina edge geometry so. Discharge ano a ɛyɛ kurukuruwa no trɛw plasma no mu wɔ anammɔn a ɛtrɛw so, na ɛma wɔyɛ no brɛoo na ɛma dielectric nkwa nna tenten. N’ano a ano yɛ nnam ma ahoɔden bom ma wɔde sa yare denneennen a ɛho ka yɛ den sɛ ɛbɛhyɛ ntɛmntɛm.
Wɔ substrates a ɛma nsu fa mu ne plasma treaters a ɛyɛ adwuma wɔ wim nhyɛso mu a dielectric barrier discharge wom no, geometry mmara no sesa bio, efisɛ ɛsɛ sɛ wosiw discharge no kwan sɛ ɛnnyɛ conductive channel.
Onwini, Ahotew ne Ɔsom Asetra
Corona a ɛtwetwe no dan tumi a wɔde ba no fã ketewaa bi a ntease wom ma ɛbɛyɛ ɔhyew. Saa ɔhyew no si electrode, dielectric ne web no so. Onwini nyɛ nea wopɛ wɔ nhama a ɛwɔ soro-watt-density so.
Mframa a wɔma ɛyɛ nwini ne ɔkwan a ɛyɛ mmerɛw sen biara: mframa a wɔhwɛ so fa baabi a mframa fi mu no de ozone ne ɔhyew kɔ. Ɛyɛ adwuma yiye kosi watt densities a ɛkɔ fam na ne bo nyɛ den sɛ wobɛhwɛ so. Nsuo a ɛma onwini, ɛnam akwan a ɛwɔ electrode no mu anaasɛ ɛnam roll no ankasa so, ho hia berɛ a ɛretu mmirika boro bɛyɛ 10 W wɔ sɛntimita ahinanan biara mu simma biara, anaasɛ berɛ a wɔreyɛ ɔhyew-sensitive substrates ho adwuma.
Ozone a wɔyi ne onwini kyɛ ducting wɔ installations pii mu, na ɛno nti na extraction duct a asiw no di kan da adi sɛ ɔhyew alarm. Bom hwehwɛ abien no nyinaa mu.
Mpɛn dodow a wɔbɛhohoro no, substrate no na ɛkyerɛ. Film ahorow a wɔde slip additives a emu yɛ duru anaasɛ mineral fillers ahyɛ mu no de nsõ fitaa bi gu electrode no ano ne dielectric no so. Saa deposit no yɛ dielectric ankasa, enti ɛsakra gap a etu mpɔn no na ɛde banding ba. Ebia ɛho behia sɛ wɔhohoro corona treater electrode a ɛwɔ polyolefin line a wɔahyɛ no ma so dapɛn biara, bere a BOPP line a ɛho tew betumi akɔ asram pii.
Di electrode no dwumadie nkwa nna akyi denam nnɔnhwereɛ a wɔde yi gu mu, na ɛnyɛ kalenda berɛ so, na sesa ansa na anoano profile no ayɛ kurukuruwa atwam ne boasetɔ.
Corona Treater Electrode a Wɔde Bɛto Wo Substrate Ho
Substrate ahorow hwehwɛ sɛ wɔfa akwan horow a wɔfa so sa yare. Polyolefins te sɛ polyethylene ne polypropylene nni ahoɔden a ɛba fam wɔ soro na ehia sɛ wɔyɛ ho adwuma denneennen na ama adu dynes 38 kosi 42 wɔ ɔha biara mu. Polyester ne nylon fi ase kɔ soro na ehia hann a ɛtwam nkutoo na ama adu dynes 45.
Ntama a ɛyɛ tratraa a ne kɛse nnu micron 20 no taa yɛ akyi aduru na ɔhyew a ɛkyinkyim no. Eyinom fam no, fa corona treater electrode a ɛyɛ kurukuruwa, roll kɛse, watt density a ɛba fam ne line ahoɔhare a ɛkorɔn di dwuma de trɛw ahoɔden no mu.
Foils ne metallised webs hia ahwɛyiye efisɛ conductive layer no tumi channel current. Wɔ tebea horow yi mu no, corona treater electrode a ne dwumadi so atew, anaasɛ plasma aduruyɛ afiri a ɛyɛ adwuma wɔ wim tebea a wɔahyɛ so no taa yɛ nea ahobammɔ wom.
Extrusion coating ne lamination lines hia dyne dodow a ɛkorɔn na ɛyɛ pɛ efisɛ wɔde polymer a wɔabɔ no gu so wɔ sikɔne kakraa bi mu wɔ ayaresa akyi. Banding biara a ɛwɔ discharge no mu no da adi tẽẽ sɛ adhesion failure.
| Substrate a wɔde yɛ nneɛma | Dyne botae a wɔtaa yɛ | Ɛlektrode ho nsɛm | Watt density a ɛfa ho |
|---|---|---|---|
| LDPE / LLDPE sini a wɔde yɛ sini | 38–42 | Nkrantɛ a ɛyɛ kurukuruwa | Kwan |
| BOPP sini a wɔde yɛ sini | 38–42 | Nkrantɛ a ɛyɛ kurukuruwa | Kwan |
| PET sini a wɔde yɛ sini | 45–48 | Mpaboa, a wɔakyekyɛ mu | Low–mfinimfini |
| Sini a wɔde dade ayɛ | 44–50 | Adwuma a wɔyɛ no so tew | Fam |
| Aluminium a wɔde ayɛ krataa | 42–46 | Mpaboa, nsuo a ɛyɛ nwini | Kwan |
| Krataa board a wɔde akata so | 40–44 | Mpaboa | Soro |
| Nneɛma a ɛma nsu fa mu | Adeyɛ titiriw | DBD / plasma a ɛwɔ nipadua no mu | Fam |
Mfomso a Ɛtaa Di Bere a Wɔrekyerɛ Corona Treater Electrode
Mfomso pii pue mpɛn pii wɔ mmeae a wɔyɛ ayaresa ho akontaabu mu.
- Electrode no kɛse a wobɛma akɔ afiri no so sen sɛ wode bɛyɛ wɛb no.Corona treater electrode a ɛtrɛw a ɛde wɛb teateaa bi di dwuma no sɛe n’ahoɔden bɛboro fã na ɛma beae a wɔmfa nni dwuma no yɛ hyew dodo. Electrode ahorow a wɔakyekyɛ mu anaasɛ nhyiam ketewaa bi tua wɔn ho ka ntɛmntɛm.
- Dielectric no a wobu ani gu so bere a worepaw profile no.N’ano a ano yɛ nnam a ɛwɔ nkuku-akata nhoma mmobɔwee so no mu paapae ade a wɔde akata so no mu wɔ adapɛn kakraa bi mu.
- Gap no a wode besi hɔ pɛnkoro na wo werɛ afi.Wosow, ɔhyew mu nyin ne roll nsakrae nyinaa sesa nsonsonoe no. Ɛsɛ sɛ ɛyɛ nhwehwɛmu a wɔyɛ daa wɔ nsiesie ho no fã.
- Cooling akyi nokwasɛm no.Nsuo a ɛyɛ nwini a wɔsan de hyɛ mframa-nwini corona treater electrode mu no ntaa nyɛ adwuma yie ɛfiri sɛ wɔannwene electrode nipadua no amma emu akwan da.
- Dyne a wɔsusuw wɔ mfinimfini nkutoo.Edge-to-edge uniformity yɛ adanse ankasa a ɛkyerɛ sɛ corona treater electrode ne dielectric no hyia yiye.
- Electrode no a wobɛsesa a wonhwɛ roll no.Dielectric a asɛe bɛsɛe electrode foforo.
FAQ
Q1: Mpɛn ahe na ɛsɛ sɛ wɔsesa corona treater electrode?
Fa si ananmu wɔ nnɔnhwerew a wɔde gyae adwuma no mu sen sɛ wode mfe a adi wɔ kalenda so. Dade a ɛnyɛ den electrode dodow no ara kura wɔn profile nnɔnhwerew 8,000 kosi 15,000. Hwɛ discharge no ano nnɔnhwerew 2,000 biara na sesa bere a profile no ayɛ kurukuruwa a wotumi hu anaasɛ ano no kyerɛ sɛ pitting no.
Q2: So metumi de corona treater electrode ayɛ adwuma wɔ ɔkwan a ɛtrɛw so de atew arcing so?
Sɛ wɔtrɛw ɔkwan a ɛda ntam no mu a, ɛtew asiane a ɛwɔ hɔ sɛ mfiri bɛka ho no so nanso ɛma ahoɔden a ehia na ama asɛe no kɔ soro, na ɛma ozone a ɛba ne ɔhyew no yɛ kɛse. Yɛ adwuma wɔ nea ɔyɛe no mfɛnsere a ɛda ntam no mu na siesie nea ɛde arcing, mpɛn pii no dielectric wear anaa efĩ ba no ntini.
Q3: Dɛn na ɛde banding ba wɔ wɛbsaet no nyinaa so?
Ɛkame ayɛ sɛ bere nyinaa na banding kɔ corona treater electrode a ɛnyɛ-uniform so: localized dielectric wear, ash build-up wɔ anoano, electrode nipadua a abɔ, anaasɛ onwini a ɛnyɛ pɛpɛɛpɛ. Di kan hwɛ electrode no, afei roll covering no.
Q4: So nhoma mmobɔwee a wɔde dɔte-kata so no fata ɛka a ɛboro so no?
Yiw wɔ line biara a ɛkɔ soro sen watt density a ɛkɔ fam anaasɛ ɛboro shift biako da biara so. Dielectric nkwa nna tenten ne ayaresa dodow a ɛyɛ den no taa tua sika a wɔbɔ no wɔ mfe abien ntam. Ceramic nso trɛw adwumayɛ mfɛnsere no mu, na ɛtew nneɛma a wɔsɛe no so bere a wɔresakra nneɛma no.
Q5: Mɛyɛ dɛn ahu sɛ wɔreyɛ me substrate no ho adwuma wɔ akyi fã?
Akyi ayaresa da adi sɛ esiw anaasɛ ɛbata ho wɔ akyi anim, ne sɛ dyne akenkan wɔ ɔfã a wɔansa no yare no. Mpɛn pii no, efi ɔkwan ketewaa bi a ɛda ntam, watt density a ɛkɔ soro dodo, anaasɛ corona treater electrode profile a ɛyɛ basabasa dodo ma film no kɛse.
Q6: So electrode nneɛma nya dyne level so nkɛntɛnso?
Ɛnyɛ tẽẽ. Nneɛma no nya erosion rate, cooling adwumayɛ ne service nkwa so nkɛntɛnso. Dyne level no gyina gap, tumi, bere a wɔde tra hɔ ne wɛb hyew so. Ɛno akyi no, electrode a ɛresɛe no ma nsu a ɛnyɛ pɛpɛɛpɛ ba, enti nneɛma a wɔpaw no da adi wɔ ɔkwan a ɛnteɛ so wɔ pɛyɛ mu.
Q7: Watt density bɛn na ɛsɛ sɛ mede fi ase?
Fi ase wɔ mfiase a nea ɔyɛe no kamfo kyerɛ ma wo substrate abusua no, mpɛn pii no bɛyɛ 5 kosi 8 W wɔ sɛntimita ahinanan biara mu simma biara ma polyolefin sini ahorow, na yɛ nsakrae kɔ soro wɔ anammɔn nketewa mu bere a wosusuw dyne dodow wɔ wɛb no trɛw nyinaa so no.
Awie
Corona treater electrode a wobɛpaw no yɛ nhyehyɛe ahorow gyinaesi. Nneɛma, profile, gap, dielectric ne cooling nyinaa di nkitaho, na nsakrae a ɛba biako mu no dan afoforo no. Ɔkwan a wotumi de ho to so ne sɛ wobedi kan akyerɛkyerɛ substrate no, dyne level a wɔhwehwɛ ne line ahoɔhare no mu, afei electrode no ne ne dielectric no kɛse de abɔ saa botae no a watt density a ɛyɛ adwuma a ɛba fam koraa no.
Shenzhen Hefeng Jiada Technology yɛ corona treaters, plasma ayaresa mfiri ne contact web cleaning systems a wɔasisi atwa saa engineering logic yi ho ahyia pɛpɛɛpɛ. Sɛ worekyerɛ station foforo anaasɛ woresan asi dedaw bi a, fa wo substrate, width ne target dyne level mena yɛn na yɛn engineers bɛkamfo corona treater electrode ne roll configuration a ɛfata ama wo line no.