I. Mhedzisiro paFlatness yePTFE Substrate 1. Plastic Stretching and the 'Necking' Effect PTFE zvinhu zvine yakaderera elastic modulus. Kamwe kukakavara kwapfuura muganho waro elastic, isingachinjiki kutambanudza kwepurasitiki kunoitika, zvichikonzera kureba kwerefu uye kuchinjika kutetepa. Mushure mekupokana kwaburitswa, iyo substrate haigone kudzoreredza kuchimiro chayo chepakutanga, zvichitungamira mukuderera, makwinya kwenguva refu, uye ukobvu husina kuenzana. Muzviitiko zvakakomba, transverse wavy mapatani anogona kuumbwa.
2. Kukambaira (Kunotonhora Kuyerera) Kuunganidza Nekufamba Kwenguva PTFE inopinda zvishoma nezvishoma kuyerera kwepurasitiki pasi pekunetseka kwakasimba. Munguva yekuputira, iyo substrate inopfava kana ichipisa mukati meovheni yekuomesa, uye kukambaira kunowedzera. Kurebesa kusina kuenzana uku kunobva kwaita 'chando' mushure mekutonhodzwa, zvichikonzera kusaenzana kwepamusoro kana mitsetse yakareba, isingagone kubviswa nemaitiro anotevera.
3. Uneven Transverse Tension Kusafambirana zvakanaka kwemagirodhi egwara kana kutungamira kusiri iko kunogona kukonzera kusawirirana pakati pemacheto nepakati, zvichitungamira 'kumipendero yakakomberedzwa,' kudhuuka kwepakati, kana kuputika kwedivi rimwe. Periodic tension fluctuations inogonawo kuburitsa alternating transverse 'tight-loose marks' panzvimbo ye substrate, zvichikanganisa zvakananga kupfakanyika.
1. Tension Fluctuations Alter Coating Gap Mune banga-over-roll coating, tension inotarisa zvakananga dhigirii rekubatana pakati pe substrate uye blade yechiremba. Kana kukakavara kuchiwedzera kamwe kamwe, iyo substrate inodzvanywa yakasimba, ichideredza uremu hwekuputira; kana kushushikana kunoderera, iyo substrate inosunungura, ichiwedzera uremu hwekuputira. Kuchinja kwakadaro kunogadzira misiyano yenguva nenguva mukukora kweadhesive layer padandemutande, inozivikanwa se 'crosswise streaks' kana 'mbizi marks.'
2. Substrate Stretching Inobata Adhesive Spreading Kunyanya kukakavara kunoonda firimu rePTFE uye kunogadzira madiki-wrinkles, ayo anozodzokororwa neanonamira coating pane isina kuenzana substrate pamusoro. Mushure mekupokana kwaburitswa uye firimu rinodzokera kumashure, iyo yekunamatira layer inogona kukura madiki-cracks nekuda kwekusagadzikana kusagadzikana. Kune ma substrates ejira refiberglass, kunetsa kwakanyanyisa kunowedzera shinda, zvichikonzera kupinda kwakanyanyisa kwekunamira, kusakwana kwekuchengetedza kwepamusoro, uye hutsinye hwekuputira.
3. Coupled Effects Panguva Yekupisa uye Kuomesa PTFE ine high coefficient yekuwedzera kwekupisa. Mukati mevheni yekuomeswa, kana ma-multi-zone tension settings asingaenderane, iyo substrate inopisa-yakanyoroveswa inoenda kwechipiri yakatambanudzwa, ichikanganisa iyo yakanyorova yekunamatira layer pamwe chete nayo, zvichikonzera kutetepa uye kusaenzana kwekuputira mushure mekuoma. Kusawirirana kwakashata munzvimbo yekutonhora kunogona kukonzera shrinkage wrinkage mune semi-yakaoma adhesive layer.
III. Key Control Strategies 1. Kusunungura uye Kuvhara Zvikamu Kunyanya kuderera uye kusingagumi kusungirirwa kunofanira kushandiswa, zvakakwana chete kudzivirira substrate kubva pakuwunyana, ichibvumira kuti ipinde munzvimbo yekuputira mumamiriro echisikigo uye kudzivisa kutanga-kutambanudza.
2. Kuomesa uye Kutonhora Zvikamu Kunyatso gadzirisa kuburikidza nema roller anoyangarara kunofanirwa kushandiswa kubhadharira kuwedzera kwekupisa uye kudhonzwa kweiyo substrate, uye kunetsana kwakanyanya munzvimbo dzekupisa kwepamusoro kunofanirwa kudzivirirwa.
3. Rewinding Chikamu Taper tension inofanirwa kugamuchirwa, zvishoma nezvishoma ichidzikisa kudzvanywa kwe nip sezvo dhayamita ye roll inowedzera, kudzivirira kukuvadza nzvimbo yakavharwa kana 'kuchinjisa' kusaenzana kubva kune ari pasi pezvikamu kuenda kune ari pedyo.
IV. Summary Precise segmented tension control ndicho chinhu chikuru pakuenzanisa hunhu hwePTFE substrates — kureva kukweshana kwakaderera uye kukurumidza kukwakuka — nezvinodiwa zvekunamira layer inoenderana. Iyo inosarudza zvakananga kushanda kwekupedzisira kweTeflon tepi mumashandisirwo akadai seyepamusoro-tembiricha kuramba uye kuburitsa zvivakwa.
Mashoko ari pamusoro apa anopiwa ne Jiangsu Aokai New Material Technology Co., Ltd.
Kana iwe uchida kudzidza zvakawanda pamusoro pezvakatsanangurwa zvakatsanangurwa, mamiriro ekushandisa, uye zvigadziriso zvekugadzirisa zvemhando yedu yakazara yezvigadzirwa, zvinosanganisira Teflon yakakwirira-tembiricha jira, Teflon yakakwirira-tembiricha tepi, Teflon yakakwirira-tembiricha mesh mabhandi, seamless conveyor mabhandi emichina yekubatanidza, single-side PTFE-inodzivirira jira rekudzivirira, high-temperature inodzivirira fiberglass jira, ndapota inzwa wakasununguka kutibata nesu kuburikidza neinotevera:
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