Jiangsu Aokai New Materials, inyanzvi inogadzira PTFE uye zvigadzirwa zvefluoroplastic, inogovera maitiro ekusarudza ePTFE yakakwirira-tembiricha tepi yekudhirodha uye inopokana netsvimbo pamidziyo yekuumba jekiseni.
I. Tembiricha-Yakavakirwa Sarudzo: Tarisa pane Heat Resistance yeAdhesive Layer uye Substrate
PTFE tepi ine zvikamu zviviri: substrate (kazhinji fiberglass jira rakaputirwa nePTFE) uye rinotsigira rinonamira. Iyo yekunamatira layer ndiyo inowanzoita bhodhoro rekuita.
1. Kuenderera mberi tembiricha yekushanda ≤ 260°C (General mapurasitiki & partial engineering mapurasitiki)
Zvishandiso zvinoshandiswa: PE, PP, PS, ABS, PVC yakapfava, EVA, pamwe nePA, PBT uye zvimwe zvinhu zvinogadziriswa pazasi tembiricha mazinga. Inokurudzirwa kusarudzwa: Standard fiberglass-yakasimbiswa PTFE tepi ine silicone pressure-sensitive adhesive (PSA). Ukobvu hunokurudzirwa: 0.13 mm kana 0.18 mm, kuenzanisa kuenderana uye kusimba kwesevhisi. Key manotsi: Iyi ndiyo yakakwana yekushanda kwePTFE tepi, ine yakanakisa kugadzikana kwekemikari uye kuburitsa kuita.
2. Kuenderera mberi kwekushanda tembiricha 260°C ~ 300°C (High-temperature engineering mapurasitiki)
Zvishandiso zvinoshandiswa: PC, PA66, POM, PET, high-temperature PPA, yakagadziridzwa PPO uye mamwe majekiseni akakwirira-kupisa. Inokurudzirwa kusarudzwa: Fiberglass PTFE tepi yakagadzirwa nepamusoro-tembiricha inodzivirira silicone adhesive. Yakajairwa silicone adhesive ichakurumidza kuchembera, kurasikirwa nekusimba uye kusiya masara pasi peiyi tembiricha renji. Ukobvu hunokurudzirwa: 0.18 mm kana 0.25 mm. Yakakora adhesive uye substrate layers inopa zvirinani kupisa kwekupisa uye kusamira kwekupfeka. Simbiso yakakosha: Rondedzera masisitimu anonamira ane tembiricha yenguva refu iri pamusoro pe280 ° C kune vatengesi, uye ona kana iyo inonamira ichizosvibisa mold pasi pekupisa kwakanyanya.
3. Instant peak tembiricha 300°C ~ 400°C (Special high-temperature mapurasitiki kana nzvimbo dzinopisa dzemunharaunda)
Zvishandiso zvinoshandiswa: PEEK, LCP, PPS, PEI, inonyanya kuwanikwa pedyo neinopisa inomhanya nozzles uye partial extrusion die heads. Sarudzo yambiro: Hapana yakavimbika kumanikidza-sensitive adhesive inogona kumira iyi tembiricha renji. Chero adhesive-backed PTFE tepi ichatadza pakarepo, carbonize uye kusvibisa zvigadzirwa zvapera. Dzimwe sarudzo:
1. Adhesive-isina PTFE fiberglass machira, akagadzirwa nemuchina kuburikidza ne mold clamping mafuremu, mitsetse kana yakakwirira-tembiricha inomisikidza inonamira (isina-kumanikidza-inonzwa inonamira sesilicone sealants).
2. Fusible yakazara fluorinated PFA firimu tepi, yakasungirirwa kune mold nzvimbo kuburikidza nemhepo inopisa welding. Iyo inomira inoenderera 260 ° C uye yenguva pfupi 300 ° C kuratidzwa, asi haigone kutsiviwa ichichinjika senge self-adhesive tepi. Optimized alternative proposal: Pamamiriro akadai ekupisa, mold PTFE coating kana nano ceramic high-temperature resistant coating inokurudzirwa.
II. Chigadzirwa-Yakavakirwa Sarudzo: Match Wear Resistance, Corrosion Resistance uye Kuburitsa Zvinodiwa
Zvenyama uye zvemakemikari zvimiro zvepurasitiki yakanyungudutswa zvinotarisa inodiwa pamusoro pekushanda uye kusimba kwechimiro che tepi.
1. Yakanyanya tacky / mold-prone zvinhu
Zvinomiririra zvinhu: EVA, inopisa yakanyunguduka inonamira, TPE, TPU, mamwe akagadziridzwa PP mamakisi. Sarudzo yakakosha mapoinzi: Sarudza yakakwira-kuburitsa tepi ine yakakwira PTFE zvemukati uye dense coating. Isa pamberi yakachena PTFE firimu tepi (isina fiberglass reinforcement, low tensile simba, yakakodzera chete kune yakaderera-stress nzvimbo) kana premium yakazara-impregnated fiberglass PTFE tepi. Nzvimbo dziri padyo nePTFE dzakachena dzinopa hukuru hwekurwisa-tsvimbo.
2. Girazi fiber / mineral yakazadzwa zvakasimbiswa zvinhu
Zvinhu zvinomiririra: Girazi fiber yakasimbiswa PA, PP, PBT, calcium carbonate yakazadza PP. Pfeka michina: Inoyerera inonyunguduka inoita senge remvura sandpaper, inokurumidza kubvisa akajairwa PTFE machira; yakafumurwa fiberglass substrate inokonzeresa kukanganisa. Sarudzo mapoinzi akakosha:
1. Hukobvu hwekutanga: Sarudza inorema-basa kupfeka-inodzivirira tepi ye0.25 mm kana kupfumbira.
2. Kusimbaradza kwemaitiro: Sarudza zvigadzirwa zvine akawanda-layer PTFE coating kana pamusoro pekuomesa kurapa pane imwe chete yakatetepa coating.
3. Replacement strategy: Bata tepi sechinhu chinobatika chenguva dzose kumamiriro ekushanda akadaro, uye gadzira nguva nenguva yekuongorora uye kutsiva kutenderera pane kutsvaga hupenyu hwesevhisi zvachose.
3. Zvishandiso zvine zvinoodza kana kuti zvinonaya zvinowedzerwa
Zvinomiririra zvinhu: Hard PVC (inoburitsa HCl), flame retardant compounds (brominated, phosphorus-based flame retardant precipitation), fluorinated processing aids. Failure mode: Precipitates inobvisa adhesive layer kana kupinda mu substrate, zvichiita kuti tepi blistering uye delamination.
1. Kemikari inopokana yekunamira: Simbisa silicone inonamira ine inokwana inertness kurwisa isina kusimba asidhi, plasticizers uye mamwe madhiri.
2. Dense substrate: Sarudza tepi ine fiberglass yakarukwa zvakasimba uye yakavharwa zvizere PTFE impregnation kudzivirira gasi/mvura kupinda iyo inokuvadza inonamira inotsigira.
3. Venting optimization: Sanganisa mold vacuum kudonhedza kana yekuwedzera vent grooves kana zvichidikanwa kudzikisa kuunganidzwa kwemvura pamatepi interface kubva kwainobva.
4. Static-sensitive zvinhu
Mamiriro ezvinhu akajairwa: Yemagetsi chikamu jekiseni kuumba, yakakwirira-kuyerera PP firimu extrusion. Inokurudzirwa sarudzo: Anti-static PTFE tepi (tema PTFE tepi yakavharwa ne conductive kabhoni dema kana yakakosha anti-static layer) kudzivirira guruva adsorption uye electrostatic discharge njodzi.
III. Adaptation Kubva pane Equipment uye Mashandisirwo Mamiriro
1. Jekiseni mold demolding
Cavities, sliders uye lifters: Tepi inowanzoiswa kune mold-adhesive nzvimbo. Yakatetepa 0.13 mm tepi ine hurefu hwakanaka hunodiwa kuti ikwane yakaoma yakakombama nzvimbo. Dzivisa ejector mapini uye vent slots; kuchenjerera kwezvikamu chaizvo sezvo tepi ukobvu huchachinja chigadzirwa dimensional kushivirira. Hot mumhanyi mahwendefa uye nozzle mazano: Kunyanya kupisa tembiricha inoshanda pano; jira rePTFE chete rinogadziriswa rakagadziriswa-isina PTFE rinogona kushandiswa kudzivirira flash adhesion. Self-adhesive tepi inorambidzwa zvachose.
2. Extruders uye midziyo yakadzika
Extrusion kufa miromo / zvitoro: Dzivirira kunyungudika kuunganidza uye tambo pachiteshi chekuburitsa. Sarudza yakanyanyisa-yakatetepa (0.08 mm–0.13 mm) yakasununguka tepi kudzivirira kushandura mativi e die orifice. Putira tepi kubva kumberi kusvika kumagumo kumeso kwenzvimbo yekubuda kuti uderedze kunyungudika kupinda mumajoini emakumbo. Pelletizer template: Yakananga kuratidzwa kune yakakwirira-tembiricha kunyunguduka uye girazi fiber abrasion. Heavy-duty tepi ye 0.25 mm kana pamusoro inosungirwa, uye inogadziriswa seyakagaro shandiswa. Cast firimu rolls / traction press rolls: Anti-stick uye nyore kuchenesa. Silicone-backed PTFE tepi inogona kuputirwa nema rollers, kana inonamira-isina PTFE fiberglass maoko anogona kutorwa. Tarisa tepi yekudzivirirwa kwetembiricha inoenderana neroller pamusoro tembiricha kana kudziyisa kuchibatanidzwa.
Izvo zviri pamusoro pehunyanzvi zvemukati zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida kuwana tsanangudzo dzakadzama, mamiriro ekushandisa uye zvigadziriso zvakagadziridzwa zvechigadzirwa chedu chizere chepodfolio chinosanganisira PTFE yakakwirira-tembiricha jira, PTFE yakakwirira-temperature adhesive tepi, PTFE yakakwirira-temperature mesh bhandi, seamless kupisa kupisa bhandi, single-sided PTFE jira, yakakwirira-tembiricha inodzivirira pazasi inodzivirira girazi, tapota taura nesu pazasi-inodzivirira girazi.
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