Ti gaskets to pfalela lapi ta mahiselo yale henhla ti hlanganisa matimba yale henhla ya dielectric (ya tshamiseka ehansi ka ndzhongho), -70°C kuya eka 260°C temperature range, universal chemical resistance (handle ka tinsimbi ta alkali leti n’okiweke), non-stick surface (yi sivela creepage), anti-creep (fiberglass reinforcement vs. pure PTFE), matimba yale henhla ya tensile, friction yale hansi (μ=0.05-0.1), na mpimo wa malangavi ya V-0. Loko ku pimanyisiwa na mica, rhaba, na ti gaskets ta PTFE to basa, lapi ra PTFE rinyika ku cinca cinca lokukulu, ku lulamisiwa, na ku tiya ka dimensional ya nkarhi woleha. Swikahle swinene eka ti transformers, motor insulation, ti khemikhali flange sealing, na switirhisiwa swa semiconductor.

Lapi ra mahiselo yale henhla ra PTFE ri humelerisiwa hiku tirhisa single-dip impregnation (ku hundza kun’we: hiku hatlisa, ya ntsengo wale hansi, ku peta, ndzhawu yo khwaxa leyingana ti pinholes) kumbe multi-dip impregnation (2-3+ passes: smooth, dense, pinhole-free coating, PTFE content 50-70%, premium performance, higher cost). Single-dip yi fambelana na ti gasket ta xiyimo xa le hansi, ti mats ta nkarhinyana na switirhisiwa leswi hefemulaka. Multi-dip ya laveka eka ti food-grade baking sheets, ti non-stick conveyor belts, ti high-frequency circuit substrates, ti chemical liners, na ti architectural membranes.

Ku basa ka switirhisiwa swoka swinga lulamisiwanga i masungulo ya xisekelo ya khwalithi ya malapi ya mahiselo yale henhla ya PTFE. Thyaka (residual initiators, surfactants, metal ions, contaminated sizing agents) swivanga ku onhaka ka mahiselo ka ha ri na nkarhi (bubbles, blistering ehenhla ka 260°C), swiphemu leswinga ringaniki leswinga namarheli (adhesion anchor points), kuhunguteka ka gezi (ku lahlekeriwa hi dielectric, voltage yale hansi yo tshoveka), matimba ya michini lawa ya tsaneke (stress concentration, cracking), na ku tshwuka/ku cinca ka muhlovo. Switirhisiwa swa raw swa vutengi byale henhla switiyisisa lapi ra PTFE leri fambisanaka na FDA, leri hanyaka nkarhi woleha, ra matirhelo yale henhla.

Ku sintering ka lapi ra fiberglass leri pfanganisiweke na PTFE swilava nkarhi wo khoma lowu kongomeke eka 370-400°C. Ti furniture leti yaka emahlweni: 30-90s (thin) kuya eka 3-5+ min (thick). Tifurni ta ntlawa: 5-15 min. Under-sintering swivanga opaque, rough coatings leyi rhurhumelaka; ku sintering ngopfu swivanga ku tshwuka, ku brittleness, na ku humesiwa ka gasi ya fluoride leyi nga na chefu. Ku antswisiwa ka maendlelo: tirhisa swilandzelerisi swa mahiselo ya furniture, endla ku kamberiwa hi mahlo (semi-transparent, flexible), na ku endla swikambelo swo koka thepi. Minkarhi hinkwayo tiyisisa kufana ka mahiselo ya vukulu hinkwabyo.

Lapi ra PTFE ra mahiselo yale henhla ri lava ku khomiwa hi vukheta ku tiyisisa vuhlayiseki na vutomi byo leha. Switsundzuxo swa nkoka: unga tshuki u tlula 260°C (ehenhla ka 320°C yi humesa musi lowu nga na chefu), papalata swirhendzevutani leswi karihaka (ku pandzeka ku peta, ku paluxa fiberglass), kungari na ku basisiwa hi abrasive (vuya bya nsimbi byi onha ndzhawu leyi nga namarheliki), hlayisa thermal expansion clearance (yi sivela ku handzuka), naswona u cinca loko ku ri na swirhumbana kumbe ku rhurhumela. Vhengele ri rhendzelekile, ekule na UV. Ambala magilavu ​​yo sivela ku hisa loko u ri karhi u khoma.

Lapi ra matimba yale henhla ra PTFE ra mahiselo yale henhla i xivumbeko xa fiberglass ya high-tenacity na PTFE coating. Switirhisiwa swa nkoka swi katsa ku hundzisela ka ti indasitiri (ku baka swakudya, ku omisiwa ka swiambalo, ku fambisiwa ka PCB), nsirhelelo wa ku welda (swifunengeto swa heat-sealer, swisirhelelo swa spatter), demolding na ku vumba ka press yo hisa (ku vumba ka rhaba, PV lamination), ku pfaleriwa ka gezi (motor slot liners, cable wraps), ti membranes ta vumaki (mafulelo ya xitediyamu, vutomi bya malembe ya 30+), tikhemikhali ta anti-corrosion (ku andlala swihlanganisi, swifunengeto swa mathangi), swihaha-mpfhuka (swiambalo swo hisa), ni switirhisiwa swo hlawuleka (ku tsema hi laser, ku kandziyisa hi 3D).

Ku omisiwa kahle ka lapi ra fiberglass swina nkoka swinene eka PTFE coating leyi landzelaka, resin impregnation, kumbe lamination. Vutshunguri byinharhu lebyikulu: ku susiwa ka ndzhongho eka 105-120°C (10-30 min kuya hi ntiko), dewaxing/thermal cleaning eka 300-450°C (LOI <0.1%, papalata>500°C), naku hisa ka ha ri emahlweni eka 60-100°C loko kungase peta. Lawula kufana ka mahiselo ya oven (±5°C), ku sindzisiwa ku susa ndzhongho, naswona sirhelela malapi lawa ya tshunguriweke hi silane ehansi ka 110°C. Hlayisa lapi leri omisiweke eka minkwama leyi pfaleriweke kumbe makamara yo oma (<30°C, <40% RH).

Vutomi bya vukorhokeri bya lapi ra mahiselo yale henhla ya PTFE byi hambana swinene kuya hi xitirhisiwa. Tikhemikhali ta anti-corrosion lining tinga tshama 3+ wa malembe (4x yo leha kutlula rhaba). Titreyi to baka swakudya ti heta tinhweti tinga onhaki ngopfu. Mabandhi yo fambisa ya tiindasitiri ya onhaka hikwalaho ka ku hlangana. PV lamination (150°C, EVA contact) yina vutomi byo ringanela. Switirhisiwa swa friction yo tika (abrasive discs) swina vutomi byo koma. Swilo swa nkoka: ku lawula mahiselo (tshama ≤260°C), papalata ku rhurhumela loku karihaka, ku basisiwa nkarhi na nkarhi, na ku cinciwa hi nkarhi loko ku ri na swirhumbana kumbe ku tshwuka.

Lapi ra PTFE ra mahiselo yale henhla (PTFE-coated fiberglass) ritshama nkarhi woleha swinene loko ri hlayisiwa ehansi ka 260°C, ekule na swirhendzevutani leswi karihaka, naswona ri basisiwa hi switirhisiwa swo olova. Swilo leswikulu leswi sivelaka vutomi: ku onhaka ka mahiselo ehenhla ka 260°C, ku tshoveka ka mahiselo kusuka eka ku hisa/ku titimela hiku hatlisa, ku karhala ka michini kusuka eka ku gombonyoka naku tsana, nhlaselo wa tikhemikhali kusuka eka tinsimbi ta alkali leti n’okiweke kumbe ti oxidizers to tiya, ku onhaka kusuka eka ti scrapers ta nsimbi loko ku basisiwa, na ku hlangana na UV kuva u tirhisiwa ehandle. Khwalithi ya coating na substrate na swona swina nkoka.

PTFE high-temperature fabric (PTFE-coated fiberglass) yikahle swinene eka microwave heating hikuva yi hundzisela ti microwaves handle ko tswonga eneji, yi lwisana na 260°C, naswona yina ndzhawu leyi nga namarheliki. Switirhisiwa swikatsa ti microwave baking mats, ti industrial dryer conveyor belts, ti reactor linings ta ku gayela ti khemikhali, na ti microwave popcorn bag liners. Tigredi ta FDA leti kumekaka eka ku hlangana na swakudya.