PTFE phahameng-mocheso lesela insulating gaskets kopanya phahameng dielectric matla (a tsitsitseng tlas'a mongobo), -70 ° C ho 260 ° C mocheso fapaneng, bokahohleng lik'hemik'hale ho hanyetsa (ntle le qhibilihile alkali li tšepe), bao e seng khomarela holim (thibela creepage),-ba khahlanong le creep (fiberglass matlafatso vs. hloekileng PTFE), phahameng tensile matla, tlaase khohlano (μ = 0.05-0.1), le V-0 tekanyetšo ya kgabo. Ge e bapetšwa le mica, rabara, le di-gasket tša PTFE tše di hlwekilego, lešela la PTFE le nea go feto-fetoga mo go phagamego, go šongwa, le go tsepama ga tekanyo ya nako e telele. Loketseng bakeng sa transformers, enjene kwahelang, lik'hemik'hale flange tiiso, le semiconductor thepa.

PTFE lesela bataletse nakong sintering hloka tsitsipano e nepahetseng, mocheso, le taolo ya thibelo. Mekgwa ya motheo: mochine wa stenter (dipoleiti tša diphini di boloka bophara, di thibela go fokotšega ga weft), profaele ya themperetšha ya gradient (go ruthetša ka go nanya → 380-400°C swara → go tonya ka go nanya ka fase ga 310°C pele o lokolla kgatelelo), substrate yeo e fokotšegilego pele (e tloša kgatelelo ya go loga pele ga go tlotša), le botenya bja go tlotša bjo bo swanago (e thibela go qhibidiga ga phapano). Thibelo ya stenter e swanetše go hlokomelwa go fihlela e fodile ka fase ga ntlha ya kristale ya PTFE (e ka bago 310°C) go thibela warpage.

Coating go swana nakong ya PTFE emulsion impregnation ya fiberglass lesela ke lifeline ya boleng sehlahiswa. Go tlotša mo go sa lekalekanego go baka: go palelwa ga go se kgomarele (go kgomarela matheba a masesane), go fokola ga motšhene (go tsepama ga kgateletšego, go gagoga), go se tsepame ga mohlagase (gagamalo ya go thubega e theogela go 1/10), go tsenelela ga dikhemikhale (go tšhilafala ga pinhole), ditaba tša ditekanyo (go sotha), le diphošo tša go šoma (go lelera ga lebanta, go fapana ga botenya). Go tlotša ka go swana go nyaka taolo ye e nepagetšego ya viscosity ya emulsion, diteng tše di tiilego, kgatelelo ya lešela, dikgoba tša go pitlela, le diprofaele tša go omiša/sintering tša mafelo a mantši.

Lešela la themperetšha ya godimo la PTFE le feta ka gare ga dikgato tše nne tša phetogo ya sebopego ge themperetšha e hlatloga: ka fase ga 260°C – go phatloga ga micro-cracking ka go nanya le go fetošwa ga tlaleletšo ya mašaledi; ka 327°C (ntlha ya go qhibidiga) – phetogo ya kristale go ya go amorphous, go tlotša go a nolofala, go delaminates go tšwa go fiberglass; 400-500°C – PTFE e depolymerizes (e lokolla dikgase tše di nago le mpholo), go tlotša go a nyamelela; ka godimo ga 500°C – fiberglass e a nolofala (840°C ntlha ya go nolofala) gomme e lahlegelwa ke botshepegi bja sebopego. Dula ka fase ga 260°C o tšwela pele, efoga ditlhora tša >300°C bakeng sa tšhomišo ye e bolokegilego.

PTFE phahameng-mocheso lesela bokagodimo kalafo roba dikhemikhale inertness bakeng sa bonding / khatiso. Mekgwa e mene: etching lik'hemik'hale (sodium-naphthalene, matla a holim'a 20 → 40-50 dyn / cm, lera lefifi la sa feleng, sebopeho micro-porous), kalafo ea plasma (nano-roughening, grafting sehlopha se sebetsang, fensetere e khutšoanyane mafolofolo), kalafo corona (tšesane-filimi, ho bola ka potlako, botebo lekanyelitsoeng), le kalafo laser (nepahetseng micro-patterning, laoloa carbonization). Mekgwa ka moka e roughen mmeleng le ka dikhemikhale e tsebagatša dihlopha tša polar (C = O, -OH, -COOH) go kgontšha kgokagano ya sekgomaretši.

Bohloeki bja dilo tše tala ke motheo wa motheo wa boleng bja lešela la themperetšha ya godimo ya PTFE. Ditšhila (di-initiator tša mašaledi, didirišwa tša go šoma godimo ga mmu, di-ion tša tšhipi, didirišwa tša go lekanyetša bogolo tše di šilafetšego) di hlola go senyega ga phišo pele ga nako (dibubble, go tšholla makhopho ka godimo ga 260°C), bokagodimo bjo bo sa lekalekanego bjo bo sa kgomaretšego (dintlha tša ankora tša go kgomarela), go fokotšega ga go thibela motlakase (tahlegelo ya dielectric, gagamalo ya go thubega ya fase), maatla a metšhene ao a fokolago (go tsepama ga kgateletšego, go phatloga), le go serolane/go fetoga ga mmala. Didirišwa tše tala tša bohlweki bjo bo phagamego di netefatša lešela la PTFE leo le obamelago FDA, leo le phelago nako ye telele, leo le šomago gabotse.

PTFE- tlotsitsoeng fiberglass lesela sintering hloka nepo tšoara nako ka 370-400 ° C. Dibešo tše di tšwelago pele: 30-90s (tše sesane) go ya go 3-5+ min (tetenya). Dibešwa tša sehlopha: 5-15 min. Under-sintering e baka di-coating tše di sa bonagalego gabotse, tše makgwakgwa tšeo di ebolago; go sintering ka mo go feteletšego go baka go ba mosehla, go brittleness le go lokollwa ga kgase ya fluoride yeo e nago le mpholo. Tshepedišo optimization: šomiša di-tracker tša themperetšha ya sebjana, dira tlhahlobo ya pono (seka-sepelelana, tenyetsego), le go dira diteko tša go goga theipi. Ka mehla netefatša go swana ga themperetšha ya botenya bjo bo tletšego.

PTFE phahameng-mocheso lesela hloka tšoara ka hloko ho netefatsa polokeho le bophelo bo bolelele. Ditšhireletšo tše bohlokwa: le ka mohla o se ke wa feta 260°C (ka godimo ga 320°C e lokolla muši wa mpholo), efoga di-crease tše bogale (e phatloga go tlotša, e pepentšha fiberglass), ga go na go hlwekiša ka go gohla (wulu ya tšhipi e senya bokagodimo bjo bo sa kgomaretšego), boloka sekgoba sa katološo ya phišo (e thibela go gagoga), gomme o tšeele legato ge e na le makhopho goba e ebola. Lebenkele le phuthetšwe, kgole le UV. Apara diatlana tšeo di thibelago phišo nakong ya go swara.

PTFE lešela la themperetšha ya godimo le na le segokanyipalo sa katološo ya phišo (CTE) ya 30-60 ppm/°C (warp/weft) – ye e phagamego go feta fiberglass e nnoši eupša e le fase kudu go feta PTFE ye e hlwekilego (100-200 ppm/°C). PTFE e feta diphetogo tša bophagamo bja tšhoganetšo (1-2%) ka diphetogo tša kgato tša 19°C le 30°C. Go efoga go buckling, go gagola, le delamination: moralo clearances bakeng sa katoloso mahala, qoba tensioning ka mohato phetoho dithempereichara, sebelisa tensioners jarolla ka ho iketsa mabanta a conveyor, le ho sebelisa-ba khahlanong le buckling overlap moralo. Tlhahlobo ya ka mehla ya go ela ga go tonya e bohlokwa.

PTFE phahameng-mocheso lesela baka mepete fana ka melemo e mene senotlolo: bao e seng khomaretse tshebetso (ha ho na oli kapa phofo hlokahala, dipesteri bonolo lokolla ka hloekileng), ka bophara thempereichara fapaneng (-70 ° C ho 260 ° C, sireletsehileng bakeng sa ontong ho freezer), reusability (dikete tsa didikadikwe, bonolo ho hloekisa), esita le mocheso conduction (thibela chesa, leka-lekaneng browning). Food-grade FDA compliant, di phela go feta pampiri ya letlalo gomme di feta mepete ya silicone ka phetišetšo ya phišo ye kaone le sebopego se sebotse sa bokagodimo.