Tepi ya PTFE yotentha kwambiri yomwe imagwiritsidwa ntchito pokhudzana ndi chakudya iyenera kukhala mkati mwa malire omwe atchulidwa kutentha: ≤260 ° C kuti agwiritsidwe ntchito mosalekeza, ≤300 ° C kwa nsonga zazifupi (mphindi), ndipo osapitirira 327 ° C (kuwola). Malamulo a FDA ndi EU samatchula malire anthawi zonse - nthawi yolumikizana yotetezeka imadalira kutentha ndipo iyenera kutsimikiziridwa ndi mayeso osamukira kutengera momwe zinthu ziliri.

Tepi ya PTFE yotentha kwambiri imafuna kusungidwa koyenera kuti ikhale yomatira, kusinthasintha, ndi kutulutsa ntchito. Zofunikira zazikulu ndi kuwongolera kutentha (10-30 ° C), chinyezi chochepera 60%, kupewa kuwala, kudzipatula kwamankhwala, kuyika molunjika, ndi mpweya wabwino. Tsatirani kasamalidwe ka FIFO ndikuwunika pafupipafupi.

Kusankha tepi yoyenera ya PTFE yotentha kwambiri ya 3D chosindikizira chotentha bedi kumafuna kuyang'ana pa zizindikiro zinayi zazikulu: kukana kutentha (mpaka 260 ° C+), fiberglass-reinforced substrate (0.18mm yabwino), zomatira za silicone zopanda ndodo pamwamba, ndi m'lifupi / kulolera koyenera. Bukuli limakuthandizani kuti mupewe kupotoza, kutsalira, ndi kulephera kusindikiza.

Kutentha kwa magalasi (Tg) a zomatira zotengera kukakamiza kwa silikoni ndi pafupifupi -120 ° C - kutsika kwambiri kuposa zomatira za acrylic. Tg yotsika kwambiri iyi imasunga tepi yotentha kwambiri ya PTFE kukhala yosinthika komanso yomata ngakhale pa -70 ° C, kuteteza kusweka kwamphamvu ndikupangitsa kumamatira kodalirika muzogwiritsa ntchito cryogenic.

Tepi ya PTFE yotentha kwambiri imatha kusweka kapena kusweka pansi pa kupindika mobwerezabwereza ndi kutsegulira. Nkhaniyi ikufotokoza momwe mungapewere izi kudzera mu kusankha koyenera kwa gawo lapansi (magalasi owonjezera), makulidwe oyenera (0.18mm ngati muyezo), kusankha zomatira za silicone, ndi njira zowongolera zoyika.

Kusankhidwa kwa pepala lotulutsa kapena gawo laling'ono la filimu ndi wothandizira kumasula kumakhudza mwachindunji kukhazikika kwa kusungirako ndi kupukuta kwa PTFE tepi yotentha kwambiri. Nkhaniyi ikufanizira magawo a mapepala a PET vs kraft ndi silicone vs.

Matepi a PTFE omwe amawotchera kwambiri amagwiritsidwa ntchito kwambiri pakutchinjiriza magetsi, koma ma frequency apamwamba komanso ma voltage apamwamba amakhala ndi zoopsa zapadera: kuwonongeka kwamagetsi, kutulutsa pang'ono, kukalamba kwamafuta, kutayika kwa ma frequency apamwamba, komanso kukhudzidwa kwa chilengedwe. Nkhaniyi ikufotokoza ngozi iliyonse komanso mmene tingapewere.

Nkhaniyi ikufotokoza momwe mungapewere kuipitsidwa ndi kuwonongeka kwa ntchito pa mbali yosamatira ya PTFE tepi yotentha kwambiri panthawi yophimba. Njira zazikuluzikulu zikuphatikiza kuyang'anira magwero (kuchiza molondola pamwamba), kudzipatula pathupi (makanema oteteza, zodzigudubuza zopanda ndodo, zowumitsa zone), ndikuwongolera njira zoyengedwa.

Ndi Zitsimikizo Ziti Zomwe Ndiyenera Kuyang'ana mu Tepi ya Food-Grade PTFE?Ziyeneretso zofunika kwambiri kuziyang'ana mu tepi yomatira ya PTFE yogwiritsidwa ntchito pamalonda ndi FDA compliance, NSF certification, ndi ISO 9001:2015 miyezo yoyendetsera khalidwe. Izi satifiketi kuonetsetsa kuti polytetrafluoro

Oyang'anira zogula ambiri amafuna kuchita bwino akamayang'ana zosankha zomatira m'mafakitale. Ayenera kudziwa kusiyana pakati pa tepi ya PTFE fiberglass ndi tepi ya silikoni. Wosanjikiza wa polytetrafluoroethylene amapatsa tepi ya PTFE fiberglass yake yayikulu yopanda ndodo ndikuluka giv ya fiberglass.